Pixart Imaging Inc.

Taiwan, Province of China

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IPC Class
G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form 216
G06F 3/0354 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks 162
G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means 115
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints 115
A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons 111
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1.

MOTION SENSOR AND MOTION DETECTION SYSTEM USING THE SAME

      
Application Number 17951221
Status Pending
Filing Date 2022-09-23
First Publication Date 2024-03-28
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor Wu, Chih-Huan

Abstract

There is provided a motion sensor including a pixel array and a processor. The motion sensor is embedded with multiple power consumption modes. In one of the multiple power consumption modes, the pixel array outputs image frames having different frame formats. The processor processes the image frames having different frame formats respectively using different algorithms so as to achieve the purposes of low power consumption and high detection sensitivity.

IPC Classes  ?

  • H04N 5/232 - Devices for controlling television cameras, e.g. remote control
  • H04N 7/18 - Closed-circuit television [CCTV] systems, i.e. systems in which the video signal is not broadcast

2.

SPRAYER COMPRISING DETECTION SYSTEM FOR EARLY TURN OFF

      
Application Number 18530152
Status Pending
Filing Date 2023-12-05
First Publication Date 2024-03-28
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Lu, Shih-Jen
  • Chou, Yang-Ming
  • Wang, Chih-Hao
  • Kao, Chien-Yi
  • Lin, Hsin-Yi

Abstract

A sprayer, comprising: a container, configured to contain liquid; a passage, comprising a first opening, a second opening, a resonator and a mesh, when the liquid is passed through the resonator, the liquid is emitted as a gas; a first optical sensor, configured to sense first optical data of at least portion of the mesh or at least portion of a surface of the container; and a processing circuit, configured to compute a foaming level of the mesh or of the surface according to the first optical data, and configured to determine whether the resonator should be turned off or not according to the foaming level. In another aspect, the processing circuit estimates a liquid level of the liquid but does not correspondingly turn off the resonator. By this way, the resonator may be turned on or turned off more properly and the liquid level may be more precisely estimated.

IPC Classes  ?

  • B05B 12/08 - Arrangements for controlling delivery; Arrangements for controlling the spray area responsive to condition of liquid or other fluent material discharged, of ambient medium or of target

3.

OPTICAL ENCODER WITH COMPARATOR HYSTERESIS CHANGED WITH ROTATING SPEED AND OPERATING METHOD THEREOF

      
Application Number 18528828
Status Pending
Filing Date 2023-12-05
First Publication Date 2024-03-28
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Thor, Chung-Min
  • Shim, Kuan-Choong

Abstract

There is provided an optical encoder including a phase shifter circuit and a multiple hysteresis comparators. The phase shifter circuit receives four input signals, and outputs multiple phase shifted signals based on the four input signals. Each of the multiple hysteresis comparators uses a changeable operation hysteresis level to compare a couple of phase shifted signals among the multiple phase shifted signals, wherein the changeable operation hysteresis level is determined corresponding to a signal frequency of the four input signals.

IPC Classes  ?

  • G01P 3/36 - Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
  • G01P 3/486 - Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors

4.

LOCKER WITH MOTION SENSOR

      
Application Number 18522295
Status Pending
Filing Date 2023-11-29
First Publication Date 2024-03-21
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Wu, Chih-Huan
  • Yao, Wen-Han
  • Ko, Yl-Hsien

Abstract

There is provided a locker with a motion sensor. The motion sensor identifies whether an object is put into or taken out from the locker by calculating coordinates of the object using a motion detection algorithm, by calculating a moving vector of the object using an image time differential algorithm or by comparing a current image frame and a background image frame, and outputs a put-in signal and a taken-out signal to a post control system.

IPC Classes  ?

  • G06V 40/20 - Movements or behaviour, e.g. gesture recognition
  • G06V 10/94 - Hardware or software architectures specially adapted for image or video understanding
  • H04N 25/75 - Circuitry for providing, modifying or processing image signals from the pixel array

5.

HOD DEVICE AND VEHICLE CONTROL DEVICE

      
Application Number 17949232
Status Pending
Filing Date 2022-09-21
First Publication Date 2024-03-21
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Hu, Chin-Hua
  • Chen, Ching-Shun
  • Chen, Yu-Han
  • Lin, Yu-Sheng

Abstract

An HOD device, comprising: a framework; covering material, covering the frame work; at least one conductive region, provided on or in the covering material; wherein the conductive region is coupled to a capacitance detection circuit or a predetermined voltage level. The HOD device can be a vehicle control device such as a steering wheel. The conductive region comprises conductive wires which can be threads of the covering material. By this way, the arrangements of the conductive wires can be changed corresponding to the size or the shape of the frame work or any other requirements. Also, the interference caused by unstable factors can be improved since the conductive wires can be coupled to a ground source of the vehicle to provide a short capacitance sensing path.

IPC Classes  ?

  • B62D 1/04 - Hand wheels
  • B62D 1/06 - Rims, e.g. with heating means; Rim covers
  • G01D 5/24 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance

6.

ELECTRONIC SYSTEM WITH EYE PROTECTION BY DETECTING EYES AND FACE

      
Application Number 18510725
Status Pending
Filing Date 2023-11-16
First Publication Date 2024-03-14
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Lin, Han-Chang
  • Wang, Guo-Zhen
  • Chen, Nien-Tse

Abstract

An electronic system including an image sensor, a face detection engine, an eye detection engine and an eye protection engine is provided. The image sensor captures an image. The face detection engine recognizes a user face in the image. The eye detection engine recognizes user eyes in the image. The eye protection engine turns off a display device when the user eyes are recognized in the image but the user face is not recognized in the image.

IPC Classes  ?

  • H04N 23/611 - Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
  • G02B 27/00 - Optical systems or apparatus not provided for by any of the groups ,
  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
  • G06V 40/18 - Eye characteristics, e.g. of the iris
  • H04N 23/61 - Control of cameras or camera modules based on recognised objects
  • H04N 23/63 - Control of cameras or camera modules by using electronic viewfinders

7.

WEARABLE DEVICE AND METHOD FOR PERFORMING REGISTRATION PROCESS IN THE WEARABLE DEVICE

      
Application Number 18517873
Status Pending
Filing Date 2023-11-22
First Publication Date 2024-03-14
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Chen, Chun-Chih
  • Lin, Yung-Chang
  • Ku, Ming-Hsuan

Abstract

A wearable device and a method for performing a registration process in the wearable device are provided. The wearable device includes a light source, a light sensor and a microcontroller that performs the method. In the method, the light source is activated to emit a detection light and the light sensor senses a reflected light. A light intensity of the reflected light is calculated. Specifically, an upper limit and a lower limit are referred to for detecting whether the wearable device is properly worn by a person. For example, since the wearable device can be worn on the person's wrist, the registration value is used to detect whether the wearable device is away from the wrist.

IPC Classes  ?

  • A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons

8.

SYSTEM FOR OBSTACLE DETECTION

      
Application Number 18140084
Status Pending
Filing Date 2023-04-27
First Publication Date 2024-03-14
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Chen, Kai-Shun
  • Wang, Wei-Chung

Abstract

A system for obstacle detection adapted to a self-guiding machine is provided. The system includes a controller, a linear light source and a light sensor. The linear light source and the light sensor are set apart at a distance. When the linear light source emits an indicator light being a vertical linear light projected onto a path the self-guiding machine travels toward, the light sensor senses the indicator light. The vertical linear light is segmented into a first segment projected to a ground and a second segment projected to a floating obstacle when the self-guiding machine approaches the floating obstacle with a height from the ground and the indicator light is projected to the floating obstacle, in which the second segment of the light sensed by the light sensor is determined as the floating obstacle in front of the self-guiding machine.

IPC Classes  ?

  • G05D 1/02 - Control of position or course in two dimensions
  • G06V 10/141 - Control of illumination
  • G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads

9.

TIME DELAY INTEGRATION SENSOR WITH MULTIPLE SENSOR ARRAYS

      
Application Number 18517011
Status Pending
Filing Date 2023-11-22
First Publication Date 2024-03-14
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Liu, Ren-Chieh
  • Lee, Chao-Chi

Abstract

The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes two pixel arrays each having multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by a time ratio of the line time difference and the frame period. The TDI sensor doubles a number of times of integrating pixel data corresponding to the same position of a scene by arranging two separately operated pixel arrays.

IPC Classes  ?

  • H04N 25/531 - Control of the integration time by controlling rolling shutters in CMOS SSIS
  • H04N 25/771 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising storage means other than floating diffusion
  • H04N 25/772 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising A/D, V/T, V/F, I/T or I/F converters

10.

OPTICAL NAVIGATION SYSTEM AND OPTICAL SENSOR CONTROL METHOD

      
Application Number 18496933
Status Pending
Filing Date 2023-10-30
First Publication Date 2024-03-07
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Liew, Tong Sen

Abstract

An optical sensor, comprising: a plurality of pins, wherein the optical sensor is configured to sense optical data and configured to compute motions according to the optical data; wherein the optical sensor outputs the motions to a control circuit via a complex pin among the pins in a first mode; wherein the optical sensor outputs data other than the motions to the control circuit via the complex pin in a second mode

IPC Classes  ?

  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
  • G06F 3/0354 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
  • G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry

11.

SMOKE DETECTOR CAPABLE OF DISTINGUISHING SMOKE AND PARTICLES

      
Application Number 18509350
Status Pending
Filing Date 2023-11-15
First Publication Date 2024-03-07
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Tsai, Cheng-Nan
  • Wang, Guo-Zhen
  • Chen, Ching-Kun
  • Chu, Yen-Chang
  • Sun, Chih-Ming

Abstract

There is provided a smoke detector including a first light source, a second light source surface, a light sensor and a processor. The light sensor receives reflected light when the first light source and the second light source emit light, and generates a first detection signal corresponding to light emission of the first light source and a second detection signal corresponding to light emission of the second light source. The processor distinguishes smoke and floating particles according to a similarity between the first detection signal and the second detection signal.

IPC Classes  ?

  • G08B 17/107 - Actuation by presence of smoke or gases using a light emitting and receiving device for detecting light-scattering due to smoke

12.

OPTICAL DETECTION DEVICE

      
Application Number 18508265
Status Pending
Filing Date 2023-11-14
First Publication Date 2024-03-07
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Liu, Feng-Chi
  • Liao, Chi-Chieh
  • Wang, Guo-Zhen
  • Lai, Hung-Ching

Abstract

An optical detection device includes a first linear light source, a second linear light source, an optical sensor array and a processor. The first linear light source is adapted to project a first long strip illumination beam onto the target container. The second linear light source is adapted to project a second long strip illumination beam onto the target container, and the second long strip illumination beam is crossed with the first long strip illumination beam. The optical sensor array is adapted to receive a first long strip detection beam and a second long strip detection beam reflected from the target container. The processor is electrically connected to the optical sensor array. The processor is adapted to analyze intensity distribution of the first long strip detection beam and the second long strip detection beam to acquire a relative distance between the optical sensor array and the target container.

IPC Classes  ?

13.

CLEANING SYSTEM AND CLEANING METHOD

      
Application Number 17900949
Status Pending
Filing Date 2022-09-01
First Publication Date 2024-03-07
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Chen, Shih-Feng
  • Chiang, Han-Lin
  • Shyu, Ning

Abstract

A cleaning system and a cleaning method are provided. The cleaning system includes a main body, an air suctioning device, a light source, an optical sensor, a memory and a processing unit. The air suctioning device includes an air flow passage and a fan-motor assembly that is disposed in the air flow passage and generates a suction force to suction outside air through the air flow passage. The light source emit light to the air flow passage. The optical sensor captures a plurality of successive image frames from the air flow passage. The processing unit is configured to: obtain first and second image frames from the successive image frames; compare the first image frame with the second image frame to identify dust particles; obtain a particle feature of the dust particles; and determine a current cleanness condition according to the particle feature.

IPC Classes  ?

  • A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
  • A47L 5/22 - Structural features of suction cleaners with power-driven air-pumps or air-compressors, e.g. driven by motor vehicle engine vacuum with rotary fans
  • A47L 9/00 - DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL - Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L 9/14 - Bags or the like; Attachment of, or closures for, bags
  • A47L 9/19 - Means for monitoring filtering operation
  • A47L 9/22 - Mountings for motor fan assemblies
  • A47L 9/30 - Arrangement of illuminating devices
  • G05D 1/02 - Control of position or course in two dimensions
  • G06T 7/00 - Image analysis
  • G06V 10/75 - Image or video pattern matching; Proximity measures in feature spaces using context analysis; Selection of dictionaries

14.

Optical navigation device capable of automatically switching between different tracking modes in response to different tracking surfaces

      
Application Number 18121011
Grant Number 11921940
Status In Force
Filing Date 2023-03-14
First Publication Date 2024-03-05
Grant Date 2024-03-05
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Chen, Tzu-Yu

Abstract

A method of an optical navigation device having a plurality of different tracking modes includes: using an image sensor to sense and generate a plurality of image frames; and, controlling and changing a tracking mode of the optical navigation device from a first tracking mode into a second tracking mode in response to an event that the optical navigation device changes from a first surface operation condition into a second surface operation condition.

IPC Classes  ?

  • G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
  • G06F 3/0354 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks

15.

TIME DELAY INTEGRATION SENSOR HANDLING DEFECT PIXELS

      
Application Number 18503265
Status Pending
Filing Date 2023-11-07
First Publication Date 2024-02-29
Owner
  • PIXART IMAGING INC. (Taiwan, Province of China)
  • TAIWAN SPACE AGENCY (Taiwan, Province of China)
Inventor
  • Liu, Ren-Chieh
  • Lee, Chao-Chi
  • Chen, Yi-Yuan
  • Hsu, En-Feng

Abstract

The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by the time ratio of the line time difference and the frame period. The TDI sensor further records defect pixels of a pixel array such that in integrating pixel data to integrators, the pixel data associated with the defect pixels is not integrated into corresponding integrators.

IPC Classes  ?

  • H04N 25/768 - Addressed sensors, e.g. MOS or CMOS sensors for time delay and integration [TDI]
  • H04N 25/531 - Control of the integration time by controlling rolling shutters in CMOS SSIS
  • H04N 25/75 - Circuitry for providing, modifying or processing image signals from the pixel array

16.

VEHICLE DEVICE SETTING METHOD

      
Application Number 18386603
Status Pending
Filing Date 2023-11-03
First Publication Date 2024-02-29
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Chiu, Liang-Chi
  • Chen, Yu-Han
  • Kao, Ming-Tsan

Abstract

A vehicle device setting method including: capturing, by an image sensing unit, a first image frame; recognizing a user ID according to the first image frame; showing ID information of the recognized user ID on a screen or by a speaker; capturing a second image frame; generating a confirm signal when a first user expression is recognized by calculating an expression feature in the second image frame and comparing the recognized expression feature with stored expression data associated with a predetermined user expression to confirm whether the recognized user ID is correct or not according to the second image frame captured after the ID information is shown; controlling an electronic device according to the confirm signal; and entering a data update mode instructed by the user and updating setting information of the electronic device by current electronic device setting according to a saving signal generated by confirming a second user expression in a third image frame captured after the user ID is confirmed through showing the ID information.

IPC Classes  ?

  • G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
  • B60R 25/25 - Means to switch the anti-theft system on or off using biometry
  • G06V 20/59 - Context or environment of the image inside of a vehicle, e.g. relating to seat occupancy, driver state or inner lighting conditions

17.

MOTION DETECTION METHODS AND IMAGE SENSOR DEVICES CAPABLE OF GENERATING RANKING LIST OF REGIONS OF INTEREST AND PRE-RECORDING MONITORING IMAGES

      
Application Number 18504182
Status Pending
Filing Date 2023-11-08
First Publication Date 2024-02-29
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Wu, Chih-Huan
  • Ko, Yi-Hsien
  • Yao, Wen-Han

Abstract

A motion detection method applied into an image sensor device includes: providing a plurality of regions of interest (ROIs) on at least one monitoring image; for each region of interest (ROI): detecting whether at least one motion event occurs within the each ROI; and determining a priority level of the each ROI according to at least one feature information of the at least one motion event; and determining an alarm schedule of the ROIs for a user according to a plurality of priority levels of the ROIs.

IPC Classes  ?

  • H04N 5/77 - Interface circuits between an apparatus for recording and another apparatus between a recording apparatus and a television camera
  • G11B 27/34 - Indicating arrangements

18.

NAVIGATION DEVICE WITH IMPROVED LIGHT UTILIZATION EFFICIENCY AND OPTICAL ENGINE THEREOF

      
Application Number 18504192
Status Pending
Filing Date 2023-11-08
First Publication Date 2024-02-29
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Chin, Yee-Loong
  • Lim, Wan-Piang
  • Lee, Sai-Mun

Abstract

There is provided a navigation device including a light source, a light guide and a light sensor. The navigation device is operated relative to a work surface. The light source generates an illumination beam passing through the light guide to generate an illuminated area on the work surface. The light sensor receives reflected light from the illuminated area via the light guide. When a working gap between the navigation device and the work surface is increased, a first size of the illuminated area in a first direction is substantially identical to a first initial size of the illumination beam in the first direction after just leaving the light guide, and a second size of the illuminated area in a second direction is smaller than a second initial size of the illumination beam in the second direction after just leaving the light guide.

IPC Classes  ?

  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
  • G06F 3/0354 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks

19.

OUTPUT STAGE CIRCUIT, DAC, TOF SYSTEM AND CURRENT DRIVING METHOD

      
Application Number 17898432
Status Pending
Filing Date 2022-08-29
First Publication Date 2024-02-29
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Chung, Yueh-Lin
  • Tsai, Tso-Sheng

Abstract

An output stage circuit, comprising: a current source circuit; an output switch circuit, comprising at least one output switch, coupled to the current source circuit, wherein an output current flows through a target circuit when the output switch circuit is conducted; at least one bias capacitor, coupled to the current source circuit; and a bias switch circuit, configured to receive a bias voltage, comprising at least one bias switch, coupled to the bias capacitor and the current source circuit, wherein the bias voltage charges the bias capacitor when the bias switch circuit is conducted. The present invention further discloses a DAC applying the output stage circuit and a TOF system applying the DAC. The conventional kick back issue can be improved by the mechanism provided by the present invention.

IPC Classes  ?

  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
  • G01B 11/22 - Measuring arrangements characterised by the use of optical techniques for measuring depth
  • H03M 1/80 - Simultaneous conversion using weighted impedances
  • H03M 1/82 - Digital/analogue converters with intermediate conversion to time interval

20.

DATA TRANSMISSION SYSTEM WITH HIGH TRANSMISSION SECURITY

      
Application Number 17899615
Status Pending
Filing Date 2022-08-31
First Publication Date 2024-02-29
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor Liang, Jr-Kai

Abstract

There is provided a data transmission system including a human input device and a host. Before transmitting data to the host, the human input device checks whether there is any previously paired key device nearby. If there is no previously paired key device appearing close to the human input device, the human input device is arranged not to transmit data or to transmit non-dedicated data to the host.

IPC Classes  ?

  • H04W 12/033 - Protecting confidentiality, e.g. by encryption of the user plane, e.g. user’s traffic
  • H04L 9/08 - Key distribution

21.

Mechanism capable of providing time-sharing signal port supporting button and ARGB protocols

      
Application Number 17985932
Grant Number 11917732
Status In Force
Filing Date 2022-11-14
First Publication Date 2024-02-27
Grant Date 2024-02-27
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Li, Jr-Yi

Abstract

An optical device includes: an addressable LED group having ARGB LED units which are connected in series and controlled serially by a specific sequence of digital signals to display colors; an input interface circuit, configured to sense a user's control state; a control circuit, coupled to the addressable LED group and the input interface circuit; a processing circuit, for providing an optical operation; a specific signal port of the processing circuit, coupled to the addressable LED group and coupled to the input interface circuit through the control circuit, configured to receive the specific sequence of digital signals and then transmit the specific sequence of digital signals into an input of a first addressable LED unit in the addressable LED group, and configured to receive an output control signal generated from the input interface circuit by sensing the user's control state.

IPC Classes  ?

  • H05B 45/20 - Controlling the colour of the light
  • H05B 47/16 - Controlling the light source by timing means

22.

PIXEL CIRCUIT ADOPTING OPTICALLY SENSITIVE MATERIAL TO SUPPRESS DARK CURRENT

      
Application Number 18385920
Status Pending
Filing Date 2023-11-01
First Publication Date 2024-02-22
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Yonemoto, Kazuya

Abstract

There is provided a pixel circuit including an optically sensitive material (OSM) layer and a readout circuit. The OSM layer is arranged upon the readout circuit, and used to sense light energy to generate signal charges to be integrated in a floating diffusion. The readout circuit includes a source follower for amplifying a voltage on the floating diffusion within a readout interval, and the voltage on the floating diffusion is not changed by an external voltage pulse within the readout interval.

IPC Classes  ?

  • H04N 25/77 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
  • H04N 25/63 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current
  • H04N 25/75 - Circuitry for providing, modifying or processing image signals from the pixel array

23.

IMAGE RECOGNITION SYSTEM, SENSOR MODULE, AND METHOD FOR IMAGE RECOGNITION

      
Application Number 18386051
Status Pending
Filing Date 2023-11-01
First Publication Date 2024-02-22
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Wang, Guo-Zhen
  • Lin, Han-Chang

Abstract

An image recognition system, a sensor module and a method for image recognition are provided. The system includes a processing module, a sensor module, and a database. The sensor module includes first sensors and second sensors, the first sensors are image sensors for object recognition and the second sensors are thermal sensors for human detection. When the image sensors and the thermal sensors are arranged in columns, each column of the image sensors is adjacent to at least one column of the thermal sensors, or when the image sensors and the thermal sensors are arranged in rows, each row of the image sensors is adjacent to at least one row of the thermal sensors, or when the image sensors and the thermal sensors are arranged in a checkerboard manner in the matrix, each of the image sensors is adjacent to the thermal sensors.

IPC Classes  ?

  • G06T 7/254 - Analysis of motion involving subtraction of images
  • G06T 7/20 - Analysis of motion
  • G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
  • G06T 7/60 - Analysis of geometric attributes
  • G06T 7/10 - Segmentation; Edge detection
  • G06T 7/30 - Determination of transform parameters for the alignment of images, i.e. image registration
  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
  • G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
  • G06V 10/147 - Optical characteristics of the device performing the acquisition or on the illumination arrangements - Details of sensors, e.g. sensor lenses
  • G06V 40/10 - Human or animal bodies, e.g. vehicle occupants or pedestrians; Body parts, e.g. hands
  • H04N 23/11 - Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths

24.

OPTICAL SENSOR WHICH CAN REDUCE IMAGE FLICKER

      
Application Number 17889366
Status Pending
Filing Date 2022-08-16
First Publication Date 2024-02-22
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wu, Chih-Huan

Abstract

An optical sensor, for sensing a sensing frame corresponding to a flicker period of ambient light, comprising: a pixel array, configured to perform N times of exposure operations via at least one pixel of the pixel array in N exposure time intervals to generate N sub-frames, wherein a summation of the N exposure time intervals equals to a sensing interval and the sensing interval is less than or identical to a first flicker period. The optical sensor adds the N sub-frames to generate a summing sub-frame. The sensing frame comprises the summing sub-frame. The adding operation can also be performed to digital signals generated from the sub-frames. The influences caused by the fluctuation of ambient light can be neutralized, since the frame or portion of the frame is sensed at least twice at different phases of a single flicked period. By this way, the conventional flicker issue can be improved.

IPC Classes  ?

  • H04N 5/235 - Circuitry for compensating for variation in the brightness of the object
  • H04N 5/355 - Control of the dynamic range
  • H04N 5/378 - Readout circuits, e.g. correlated double sampling [CDS] circuits, output amplifiers or A/D converters

25.

OPTICAL IDENTIFICATION DEVICE AND RELATED CASE

      
Application Number 17891147
Status Pending
Filing Date 2022-08-19
First Publication Date 2024-02-22
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Huang, Yong-Nong
  • Chen, Hui-Hsuan

Abstract

An optical identification device includes a top cover, a circuit board, an optical detection module, an optical deviation component and an anti-reflection component. The circuit board is disposed under the top cover. The optical detection module is disposed on the circuit board, and the optical detection module includes a light emitter and a light receiver. The optical deviation component is disposed on the light emitter of the optical detection module and adapted to change a transmission direction of an optical signal emitted by the light emitter, so that the optical signal is projected onto the top cover in an inclined manner. The anti-reflection component is disposed on a surface of the top cover facing the optical detection module and adapted to increase a penetration rate of the optical signal projected onto the top cover.

IPC Classes  ?

26.

OBJECT DETERMINING SYSTEM AND ROBOT CLEANER APPLYING THE OBJECT DETERMINING SYSTEM

      
Application Number 18496946
Status Pending
Filing Date 2023-10-30
First Publication Date 2024-02-15
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wang, Guo-Zhen

Abstract

An object determining system, comprising: a processing circuit; a first stage object sensor, for generating a first stage object sensing result of an object; and a second stage object sensor, for generating a second stage object sensing result of the object if the processing circuit determines the object exists in a predetermined range based on the first stage object sensing result, wherein the processing circuit further determines an object kind of the object based on the second stage object sensing result; a line light source; and an area light source. The first stage object sensor generates the first stage object sensing result based on the line light. The second stage object sensor generates the second object detecting result based on the plane light. The first stage object sensor is a depth sensor or a thermal sensor. The second stage object sensor is an image sensor or a thermal sensor.

IPC Classes  ?

27.

SMOKE DETECTOR

      
Application Number 17883625
Status Pending
Filing Date 2022-08-09
First Publication Date 2024-02-15
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Tsai, Cheng-Nan
  • Chu, Yen-Chang
  • Sun, Chih-Ming

Abstract

A smoke detector includes a substrate, an optical detection module, a base and a top cover. The substrate has a ring shape region surrounding a central detection region, and a first block structure of the central detection region is protruded from the substrate and higher than an upper surface of the ring shape region. The optical detection module is disposed inside the central detection region. The base is disposed on the substrate and around the optical detection module. The base has a second block structure. The top cover is connected to the base. A lateral wall of the top cover is partly overlapped with the second block structure to form a guiding channel. The optical detection module analyzes variation of scattering parameters resulted from gaseous matter entering the top cover through the guiding channel for determining concentration of the gaseous matter.

IPC Classes  ?

  • G08B 17/107 - Actuation by presence of smoke or gases using a light emitting and receiving device for detecting light-scattering due to smoke

28.

METHOD FOR ELIMINATING MISJUDGMENT OF REFLECTIVE LIGHT AND OPTICAL SENSING SYSTEM

      
Application Number 18381108
Status Pending
Filing Date 2023-10-17
First Publication Date 2024-02-08
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor Wang, Guo-Zhen

Abstract

A method for eliminating misjudgment of a reflective light is provided. A light source emits a transverse linear light toward a direction of a floor as detection light and the light sensor senses reflective light signals from an object that reflects the detection light. In the method, a frame image including the reflective light signals is captured by the light sensor, centers of gravity of the reflective light signals are analyzed, and the centers of gravity of the reflective light signals can be corrected based on a line of gravity or a center of gravity of previous reflective light signals stored in a memory of the autonomous robot in order to exclude a center of gravity generated by the reflective light signal from a wall. A distance of the object can be confirmed based on the corrected centers of gravity of reflective light signals.

IPC Classes  ?

29.

OBJECT DETERMINING SYSTEM AND AUTO CLEAN MACHINE USING THE OBJECT DETERMINING SYSTEM

      
Application Number 18382049
Status Pending
Filing Date 2023-10-19
First Publication Date 2024-02-08
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wang, Guo-Zhen

Abstract

An air ejection device, configured to eject air; a distance detecting circuit, configured to detect distances between an electronic device comprising the object determining system and at least one location of an object when the air ejection device ejects air to the object; and a determining circuit, configured to determine whether the object is a rigidity type object or a soft type object according to the variations.

IPC Classes  ?

  • B25J 9/16 - Programme controls
  • G05D 1/02 - Control of position or course in two dimensions

30.

OPTICAL SENSOR ASSEMBLY AND FRONT COVER OF OPTICAL SENSOR ASSEMBLY

      
Application Number 18486176
Status Pending
Filing Date 2023-10-13
First Publication Date 2024-02-08
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Sun, Chih-Ming
  • Yu, Po-Wei

Abstract

An optical sensor assembly is provided. The optical sensor assembly includes a circuit board, an optical sensor positioned on the circuit board, and a front cover attached to the circuit board and covering the optical sensor. The front cover includes an optical element configured to guide or condense an incident light of a predetermined wavelength onto the optical sensor. The front cover is made of polypropylene or polyethylene. The predetermined wavelength is in a range from 8 micrometers to 12 micrometers.

IPC Classes  ?

  • G01J 1/04 - Optical or mechanical part
  • H05K 1/18 - Printed circuits structurally associated with non-printed electric components

31.

MULTI-STAGE FIRM ALARM DEVICE

      
Application Number 17878063
Status Pending
Filing Date 2022-08-01
First Publication Date 2024-02-01
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Chen, Ching-Kun
  • Wang, Guo-Zhen

Abstract

There is provided a fire alarm device including multiple light sources, a light sensor, a first processor and a second processor. In a standby mode, the first processor identifies whether to wake up the second processor according to a detection result of the light sensor obtained by detecting emission light of one of the multiple light sources. The second processor identifies whether to generate an alarm according to a detection result of the light sensor obtained by detecting emission light of the multiple light sources. The fire alarm device further includes a thermal sensor for providing detected temperature values to the first processor and/or the second processor to perform the identifying procedure.

IPC Classes  ?

  • G08B 29/18 - Prevention or correction of operating errors
  • G08B 29/20 - Calibration, including self-calibrating arrangements
  • G08B 25/00 - Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
  • G08B 17/103 - Actuation by presence of smoke or gases using a light emitting and receiving device

32.

ELECTRONIC DEVICE CONTROLLING LIGHT SOURCES ACCORDING TO OPTICAL VARIATION

      
Application Number 18378624
Status Pending
Filing Date 2023-10-10
First Publication Date 2024-02-01
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Ng, Muan Sian
  • Lim, Wan Piang
  • Chen, Hui-Hsuan

Abstract

An electronic device, comprising: a first light source, configured to emit first light; a second light source, configured to emit second light; an optical sensor, configured to sense optical data generated according to reflected light of the second light or according to reflected light of the first light; and a control circuit, configured to analyze optical information of the optical data. If the control circuit determines variation of the optical information is larger than a variation threshold, the control circuit controls the first light source to be non-activated and the second light source to be activated.

IPC Classes  ?

  • A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
  • A47L 9/30 - Arrangement of illuminating devices
  • B25J 19/02 - Sensing devices
  • G06T 7/00 - Image analysis

33.

OPTICAL LENS AND OPTICAL DATA CAPTURING DEVICE

      
Application Number 18378663
Status Pending
Filing Date 2023-10-11
First Publication Date 2024-02-01
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Lim, Wan Piang
  • Lee, Sai Mun

Abstract

An optical lens, comprising: a first part, comprising a first surface; and a second part, comprising a second surface, a third surface and at least one concave portion. The first surface and the second surface are not parallel with the third surface, the first part protrudes from the third surface, and the first surface and the second surface are connected with the third surface.

IPC Classes  ?

  • G02B 7/00 - Mountings, adjusting means, or light-tight connections, for optical elements
  • G03B 17/12 - Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
  • G02B 7/20 - Light-tight connections for movable optical elements
  • G02B 3/06 - Simple or compound lenses with non-spherical faces with cylindrical or toric faces

34.

MOBILE ROBOT PERFORMING MULTIPLE DETECTIONS USING DIFFERENT PARTS OF PIXEL ARRAY

      
Application Number 18378837
Status Pending
Filing Date 2023-10-11
First Publication Date 2024-02-01
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Wang, Guo-Zhen
  • Chen, Hui-Hsuan

Abstract

There is provided a mobile robot that performs the obstacle avoidance and visual simultaneous localization and mapping (VSLAM) according to image frames captured by the same optical sensor. The mobile robot includes a pixel array and a processor. An upper part of the pixel array is not coated with any filter and a lower part of the pixel array is coated with an IR filter. The processor performs range estimation using pixel data corresponding to the lower part of the pixel array, and perform the VSLAM using pixel data corresponding to the upper part of the pixel array.

IPC Classes  ?

  • G01S 17/66 - Tracking systems using electromagnetic waves other than radio waves
  • G01S 17/50 - Systems of measurement based on relative movement of target
  • G06T 7/521 - Depth or shape recovery from the projection of structured light
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01S 17/46 - Indirect determination of position data
  • G01S 7/48 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
  • H04N 23/51 - Housings
  • H04N 23/56 - Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means

35.

AMBIENT LIGHT SENSING DEVICE AND METHOD, AND INTERACTIVE DEVICE USING SAME

      
Application Number 18482951
Status Pending
Filing Date 2023-10-09
First Publication Date 2024-02-01
Owner PixArt Imaging Incorporation (Taiwan, Province of China)
Inventor Lee, Chuan-Hsin

Abstract

The invention provides an ambient light sensing device which receives at least one visible light image sensed by an image sensor. The ambient light sensing device includes an image sampling unit and an analyzing unit. The image sampling unit divides the visible light image into plural image blocks, extracts at least one sample data in each image block, and generates a comparison data according to a difference between the sample data extracted at different time points. The analyzing unit analyzes the comparison data and generates an output analysis signal accordingly.

IPC Classes  ?

  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
  • G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model

36.

SMART CONTROL SYSTEM

      
Application Number 18484454
Status Pending
Filing Date 2023-10-11
First Publication Date 2024-02-01
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Wu, Sung-Han
  • Ko, Yi-Hsien

Abstract

There is provided a smart control system including a host, at least one sensor and an informing device. The host identifies the activity of a specific member according to the detection result of the at least one sensor, and informs the specific member to take medicine on time or avoid eating specific ingredients using the informing device.

IPC Classes  ?

  • G16H 20/10 - ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to drugs or medications, e.g. for ensuring correct administration to patients
  • G16Y 40/10 - Detection; Monitoring
  • G16Y 20/40 - Information sensed or collected by the things relating to personal data, e.g. biometric data, records or preferences
  • G16Y 10/60 - Healthcare; Welfare
  • G06F 16/955 - Retrieval from the web using information identifiers, e.g. uniform resource locators [URL]
  • G16Y 10/80 - Homes; Buildings
  • G16Y 20/10 - Information sensed or collected by the things relating to location

37.

DYNAMIC MOVING AVERAGING METHOD TO SUPPRESS MOUSE STATIONARY JITTER

      
Application Number 18208322
Status Pending
Filing Date 2023-06-12
First Publication Date 2024-02-01
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Leow, Chun Heap

Abstract

A method for reducing jitter of an optical sensor when in a stationary condition includes: receiving a plurality of raw delta; comparing a movement of the optical sensor with a predetermined threshold; and when the movement is less than the predetermined threshold, entering a dynamic downshift mode, including: storing raw delta into a buffer; when the buffer is not full, outputting the raw delta as reported delta; and when the buffer is full, calculating an average of the total raw delta stored in the buffer, and outputting the average delta as reported delta.

IPC Classes  ?

  • G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
  • G06F 3/0354 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form

38.

ELECTRONIC DEVICE AND METHOD FOR MORE ACCURATELY ESTIMATING RESISTANCE VALUE OF THERMISTOR

      
Application Number 17875437
Status Pending
Filing Date 2022-07-28
First Publication Date 2024-02-01
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wu, Yi-Hsuan

Abstract

An electronic device for estimating a temperature value of a thermistor includes a first signal port, an analog-to-digital converter, and a processing circuit. When the thermistor is coupled to the first signal port of the electronic device, the processing circuit is arranged to operate in a first switching condition to detect and generate a first voltage difference to the analog-to-digital converter, to operate in a second switching condition to detect and generate a second voltage difference to the analog-to-digital converter; and, the analog-to-digital converter is arranged to determine a resistance value of the thermistor based on the first voltage difference compared to the second voltage difference and to generate the estimated temperature value according to the determined resistance value.

IPC Classes  ?

  • G01K 7/24 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a non-linear resistance, e.g. thermistor in a specially-adapted circuit, e.g. bridge circuit
  • G01K 7/42 - Circuits effecting compensation of thermal inertia; Circuits for predicting the stationary value of a temperature

39.

OPTICAL SENSOR CAPABLE OF CANCELLING INTERFERENCE

      
Application Number 17878057
Status Pending
Filing Date 2022-08-01
First Publication Date 2024-02-01
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Tsai, Tso-Sheng
  • Chung, Yueh-Lin

Abstract

There is provided an optical sensor including a light source, a first pixel, a second pixel and a processor. The first pixel generates a first output signal by receiving reflected light from an external object illuminated by the light source. The second pixel generates a second output signal by receiving reflected light from an inner surface of a package illuminated by the light source. The processor generates a random code according to the second output signal to modulate the light source, identifies whether to change an emission pattern of the light source according to a distance calculated according to the first output signal, and changes exposure intervals of the first pixel and the second pixel.

IPC Classes  ?

  • G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements

40.

IMAGE DISPLAY SYSTEM SENDING COMPRESSED DATA

      
Application Number 17878060
Status Pending
Filing Date 2022-08-01
First Publication Date 2024-02-01
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor Liang, Jr-Kai

Abstract

There is provided an imaging system capable of reducing required system resource and increasing a frame update rate. The imaging system includes a host and a display device. The host selects to transmit compressed data or row data to the display device. When the display device identifies the row data being received, the row data is directly stored into a frame buffer for being shown on a display panel. When the display device identifies the compressed data being received, the compressed data is used to generate restored data to the frame buffer for being shown on the display panel.

IPC Classes  ?

  • H04N 19/70 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals characterised by syntax aspects related to video coding, e.g. related to compression standards
  • G09G 5/00 - Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
  • H04N 19/172 - Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using adaptive coding characterised by the coding unit, i.e. the structural portion or semantic portion of the video signal being the object or the subject of the adaptive coding the unit being an image region, e.g. an object the region being a picture, frame or field

41.

PORTRAIT IMAGE PROCESSING METHOD AND PORTRAIT IMAGE PROCESSING DEVICE

      
Application Number 17868803
Status Pending
Filing Date 2022-07-20
First Publication Date 2024-01-25
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Liao, Yuan-Hsin

Abstract

A portrait image processing method, applying to a portrait image processing device, comprising: (a) acquiring a BVP (Blood Volume Pulse) signal of a user; (b) acquiring blood flow distribution of a specific portion of a user; (c) capturing an image of a specific portion of the user; and (d) adjusting the image of the specific portion according to the BVP signal and the blood flow distribution. A portrait image processing device, which comprises a camera and a processing circuit, is also disclosed. The processing circuit can acquire BVP signals from an image captured by the camera or from a PPG sensor.

IPC Classes  ?

  • G06T 7/11 - Region-based segmentation
  • A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons
  • G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions

42.

BARRIER STRUCTURE OF OPTICAL ENGINE

      
Application Number 18376063
Status Pending
Filing Date 2023-10-03
First Publication Date 2024-01-25
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Lai, Hung-Yu

Abstract

There is provided an optical engine for a navigation device including a first light source, a second light source, a lens, a barrier structure and an image sensor. The barrier structure has a first space for containing the first light source, a second space for containing the lens and a third space for containing the second light source and the image sensor. The reflected light associated with the first light source propagates to the image sensor via the lens in the second space. The reflected light associated with the second light source propagates to the image sensor via the third space without passing through the lens in the second space.

IPC Classes  ?

  • H04N 23/54 - Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
  • G05D 1/02 - Control of position or course in two dimensions
  • H04N 23/55 - Optical parts specially adapted for electronic image sensors; Mounting thereof
  • H04N 23/56 - Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means

43.

IMAGE PROCESSING METHOD AND SYSTEM FOR OPTICAL DISTANCE MEASUREMENT

      
Application Number 18376430
Status Pending
Filing Date 2023-10-03
First Publication Date 2024-01-25
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wang, Guo-Zhen

Abstract

An image processing method includes: acquiring a plurality of sensed values based on detecting light; comparing sensed values of each row with a corresponding threshold value to select a plurality of selected sensed values from the plurality of sensed values; determining a location of a centroid according to the plurality of selected sensed values; and calculating a plurality of depth values with respect to a plurality of detecting points according to the location of the centroid and a plurality of depth information transformation functions respectively corresponding to the detecting points.

IPC Classes  ?

  • G01S 17/48 - Active triangulation systems, i.e. using the transmission and reflection of electromagnetic waves other than radio waves
  • G01S 7/4912 - Receivers

44.

MOVING ROBOT CAPABLE OF RECOGNIZING CARPET

      
Application Number 18373999
Status Pending
Filing Date 2023-09-28
First Publication Date 2024-01-18
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wang, Guo-Zhen

Abstract

There is provided a moving robot including a light projector, an image sensor and a processing unit. The light projector projects a vertical light segment and a horizontal light segment toward a moving direction. The image sensor captures, toward the moving direction, an image frame containing a first light segment image associated with the vertical light segment and a second light segment image associated with the horizontal light segment. The processing unit recognizes a plush carpet in the moving direction when a vibration intensity of the second light segment image is higher than a predetermined threshold, and an obstacle height calculated according to the first light segment image is larger than a height threshold.

IPC Classes  ?

  • G05D 1/02 - Control of position or course in two dimensions
  • A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
  • G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume
  • G06T 7/73 - Determining position or orientation of objects or cameras using feature-based methods
  • A47L 9/00 - DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL - Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • A47L 9/30 - Arrangement of illuminating devices
  • G06V 10/141 - Control of illumination
  • G06V 20/10 - Terrestrial scenes
  • G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads

45.

METHOD AND OPTICAL MOTION SENSOR CAPABLE OF IDENTIFYING FALSE MOTION

      
Application Number 17865405
Status Pending
Filing Date 2022-07-15
First Publication Date 2024-01-18
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Lee, Joon Chok
  • Lim, Kevin Len-Li

Abstract

A method of identifying a false alarm of an optical motion sensor including a plurality of pixel units, includes: receiving pixel values of a testing set of pixel units selected from the plurality of pixel units, and a number of pixels of the testing set is smaller than a number of the plurality of pixel units; and performing a background adjustment operation according to the pixel values of the testing set of pixel units.

IPC Classes  ?

  • G06T 7/20 - Analysis of motion
  • G06T 7/13 - Edge detection
  • G06V 10/75 - Image or video pattern matching; Proximity measures in feature spaces using context analysis; Selection of dictionaries
  • G08B 29/18 - Prevention or correction of operating errors

46.

PRESSURE SENSING DEVICE, 3D GESTURE CONTROL SYSTEM AND VEHICLE CONTROL SYSTEM

      
Application Number 17857194
Status Pending
Filing Date 2022-07-05
First Publication Date 2024-01-11
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Hu, Chin-Hua
  • Chen, Yu-Han
  • Lin, Yu-Sheng

Abstract

A pressure sensing device, comprising: a frame work; a capacitive pressure sensor layer, surrounding the frame work; a capacitive touch sensor layer; and a flexible material layer, located between the pressure sensor layer and the touch sensor layer and surrounding the capacitive pressure sensor layer. The capacitive touch sensor layer is above the flexible material layer when the capacitive pressure sensor layer is below the flexible material layer. The capacitive touch sensor layer has a first driving electrode and a first sensing electrode. The capacitive pressure sensor layer has a second driving electrode and a second sensing electrode. A 3D gesture control system and a vehicle control system applying the pressure sensing device are also disclosed. Via the pressure sensing device, the 3D gesture control system and the vehicle control system can generate control commands according to a touch or a pressure provided by a user.

IPC Classes  ?

  • B62D 1/04 - Hand wheels
  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
  • G06F 3/0488 - Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures

47.

TOUCH SENSING SYSTEM, MULTI SENSOR DEVICE AND VEHICLE CONTROL DEVICE

      
Application Number 18369200
Status Pending
Filing Date 2023-09-18
First Publication Date 2024-01-11
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Lin, Yu-Sheng
  • Hu, Chin-Hua
  • Chen, Yu-Han

Abstract

A touch sensing system comprising: a frame work; an auxiliary layer, surrounding the frame work; a capacitive touch sensor layer, surrounding the auxiliary layer; a flexible material layer, located between the capacitive touch sensor layer and the auxiliary layer, and surrounding the auxiliary layer; and a flattening material layer, located between the capacitive touch sensor layer and the flexible material layer or located between the auxiliary layer and the flexible material layer, wherein the flattening material layer flattens the flexible material layer. The capacitive touch sensor layer comprises at least one first driving electrode and at least one first sensing electrode. The auxiliary layer comprises at least one electrode. Similar structure can also be used to a multi-sensor device and a vehicle control device. By this way, the assembling or the manufacturing can be simplified.

IPC Classes  ?

  • G01D 5/241 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance by relative movement of capacitor electrodes
  • B60R 16/03 - Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric for supply of electrical power to vehicle subsystems

48.

MOVING ROBOT WITH IMPROVED IDENTIFICATION ACCURACY OF STEP DISTANCE

      
Application Number 18371471
Status Pending
Filing Date 2023-09-22
First Publication Date 2024-01-11
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wang, Guo-Zhen

Abstract

There is provided a moving robot including a light projector, an image sensor and a processing unit. The light projector projects a vertical light segment toward a moving direction. The image sensor captures, toward the moving direction, an image frame containing a light segment image associated with the vertical light segment. The processing unit calculates a step distance and a segment feature according to the image frame, outputs a flag signal according to the segment feature to indicate whether the calculated step distance is confident or not, and perform a pixel interpolation in calculating the step distance to improve the identification accuracy.

IPC Classes  ?

  • A47L 11/40 - Parts or details of machines not provided for in groups , or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers or levers
  • G05D 1/02 - Control of position or course in two dimensions
  • G06T 3/40 - Scaling of a whole image or part thereof
  • G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume

49.

WEARABLE DEVICE

      
Application Number 18118152
Status Pending
Filing Date 2023-03-07
First Publication Date 2024-01-04
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Fei, Ming Shun Manson
  • Xia, Cong-Jun
  • Su, Gui-Ping
  • Zhang, Hua
  • Chang, Yen-Min
  • Wu, Chi-Yu

Abstract

A wearable device includes a case and a detection module. The case includes an inner casing and an outer casing. The inner casing includes a main body and a lateral wall. The main body is an annular structure. The lateral wall is disposed on a lateral side of the main body. The main body has a first installation area, a second installation area and a third installation area. The outer casing is disposed around the inner casing and abuts against the lateral wall, and the outer casing has a first opening. The detection module is disposed inside the case. The detection module includes an energy storage unit, an information transmission unit and an optical identification assembly. The energy storage unit is located on the first installation area. The information transmission unit is located on the second installation area. The optical identification assembly is located on the third installation area.

IPC Classes  ?

  • A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons
  • A61B 5/0225 - Measuring pressure in heart or blood vessels by applying pressure to close blood vessels, e.g. against the skin; Ophthaldynamometers the pressure being controlled by electric signals, e.g. derived from Korotkoff sounds

50.

OPTICAL ENCODER CAPABLE OF IDENTIFYING POSITIONS BASED ON PWM SIGNALS

      
Application Number 18367462
Status Pending
Filing Date 2023-09-13
First Publication Date 2024-01-04
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Teo, Wai-Lian
  • Chang, Yen-Min

Abstract

The present disclosure is related to an optical encoder which is configured to provide precise coding reference data by feature recognition technology. To apply the present disclosure, it is not necessary to provide particular dense patterns on a working surface. The precise coding reference data can be generated by detecting surface features of the working surface.

IPC Classes  ?

  • H04L 25/49 - Transmitting circuits; Receiving circuits using three or more amplitude levels
  • G06F 3/0362 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 1D translations or rotations of an operating part of the device, e.g. scroll wheels, sliders, knobs, rollers or belts
  • G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
  • G06V 10/94 - Hardware or software architectures specially adapted for image or video understanding
  • G06V 10/60 - Extraction of image or video features relating to illumination properties, e.g. using a reflectance or lighting model
  • G06V 10/22 - Image preprocessing by selection of a specific region containing or referencing a pattern; Locating or processing of specific regions to guide the detection or recognition
  • G06V 30/224 - Character recognition characterised by the type of writing of printed characters having additional code marks or containing code marks
  • G06V 10/75 - Image or video pattern matching; Proximity measures in feature spaces using context analysis; Selection of dictionaries
  • G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
  • G06V 10/145 - Illumination specially adapted for pattern recognition, e.g. using gratings

51.

COMPUTER SYSTEM AND PERIPHERAL INPUT DEVICE

      
Application Number 18368580
Status Pending
Filing Date 2023-09-15
First Publication Date 2024-01-04
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Li, Jr-Yi

Abstract

There is provided a computer system including a mouse device and a host. The mouse device receives a command script from the host to determine output data to be transmitted to the host. The output data includes, for example, at least one pressed key signal and/or a movement signal. The command script is previously recorded in the host or is determined according to raw data detected by the mouse device. The present disclosure further provides a gaming mouse.

IPC Classes  ?

  • A63F 13/22 - Setup operations, e.g. calibration, key configuration or button assignment
  • A63F 13/23 - Input arrangements for video game devices for interfacing with the game device, e.g. specific interfaces between game controller and console
  • A63F 13/533 - Controlling the output signals based on the game progress involving additional visual information provided to the game scene, e.g. by overlay to simulate a head-up display [HUD] or displaying a laser sight in a shooting game for prompting the player, e.g. by displaying a game menu

52.

ELECTRONIC DEVICE WITH LIGHT SOURCES EMITTING IN DIFFERENT DIRECTIONS

      
Application Number 18369417
Status Pending
Filing Date 2023-09-18
First Publication Date 2024-01-04
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Chen, Hui-Hsuan
  • Yang, Cheng-Lin
  • Chen, Tzu-Yu

Abstract

A tracking device including an image sensor, a light source and a processor is provided. The image sensor senses reflected light or scattered light formed by the light source illuminating a work surface. The processor calculates a trace of the tracking device according to one of the reflected light and the scattered light that generates more apparent image features so as to increase the adaptable work surfaces.

IPC Classes  ?

  • G01S 17/66 - Tracking systems using electromagnetic waves other than radio waves
  • G01S 17/50 - Systems of measurement based on relative movement of target
  • G06T 7/521 - Depth or shape recovery from the projection of structured light
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • G01S 17/46 - Indirect determination of position data
  • G01S 7/48 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
  • H04N 23/51 - Housings
  • H04N 23/56 - Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means

53.

DISTANCE MEASURING METHOD AND APPARATUS

      
Application Number 18369866
Status Pending
Filing Date 2023-09-19
First Publication Date 2024-01-04
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Wang, Guo-Zhen
  • Kao, Ming-Tsan

Abstract

Disclosed are a distance measuring method and a distance measuring apparatus. During the distance measuring, an image is obtained. If the location of a center of gravity of the image is within a first segment, the calculating unit calculates a distance between the object and the distance measuring apparatus corresponding to the projection point, according to a first mapping relationship and the location of a center of gravity of the image. If the location of a center of gravity of the image is within a second segment, the calculating unit calculates a distance between the object and the distance measuring apparatus corresponding to the projection point according to a second mapping relationship and the location of a center of gravity of the image.

IPC Classes  ?

  • G01S 17/89 - Lidar systems, specially adapted for specific applications for mapping or imaging
  • G01S 17/46 - Indirect determination of position data

54.

EARBUD WITH TEMPERATURE SENSING

      
Application Number 17849941
Status Pending
Filing Date 2022-06-27
First Publication Date 2023-12-28
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Sung, Wei-Lun
  • Yu, Po-Wei
  • Sun, Chih-Ming

Abstract

An earbud with temperature sensing is provided, and the earbud includes a housing, a speaker and a first temperature sensor. The housing defines a first opening and a second opening. The speaker is disposed within the housing and oriented so that audio emitted by the speaker exits the housing through the first opening defined by the housing. The first temperature sensor is positioned along an interior surface of the housing and aligned with the second opening in the housing for non-contact temperature sensing. In response to the earbud being positioned for use within an ear of a user, the second opening aligns with an inner side of the tragus close to the ear canal, the cavum conchae, an inner edge of the antitragus, or the cheek close to the ear, such that the first temperature sensor detects a body temperature of the user through the second opening.

IPC Classes  ?

  • A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons
  • H04R 1/10 - Earpieces; Attachments therefor
  • A61B 5/01 - Measuring temperature of body parts

55.

PIXEL CIRCUIT OUTPUTTING PULSE WIDTH SIGNAL AND OPTICAL SENSOR USING THE SAME

      
Application Number 18244296
Status Pending
Filing Date 2023-09-11
First Publication Date 2023-12-28
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Liu, Ren-Chieh
  • Wu, Chih-Huan
  • Ko, Yi-Hsien
  • Liu, Han-Chi

Abstract

There is provided a pixel circuit for performing analog operation including a photodiode, a first temporal circuit, a second temporal circuit and an operation circuit. Within a first interval, the photodiode detects first light energy to be stored in the first temporal circuit. Within a second interval, the photodiode detects second light energy to be stored in the second temporal circuit. Within an operation interval, the first temporal circuit outputs a first detection signal having a first pulse width according to the first light energy and outputs a second detection signal having a second pulse width according to the second light energy for being calculated by the operation circuit.

IPC Classes  ?

  • H04N 25/772 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components comprising A/D, V/T, V/F, I/T or I/F converters
  • H01L 27/146 - Imager structures

56.

FLEXIBLE CAPACITIVE TOUCH SENSING DEVICE AND HOD DEVICE

      
Application Number 17845995
Status Pending
Filing Date 2022-06-21
First Publication Date 2023-12-21
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Chen, Ching-Shun

Abstract

A flexible capacitive touch sensing device comprising a first, a second sensing region and a capacitance detection circuit. Each of the first, second sensing region comprises: flexible material; and electrodes, in or on the flexible material. Capacitance sensed by the capacitance detection circuit is used for detecting if an object causes capacitance variation to the first sensing region and the second sensing region. The first sensing region comprises a first side region with a first side which is adjacent to a second side of the second sensing region Shapes of the electrodes are changeable after provided on the flexible material. The electrodes are overlapped in normal directions of the first side region and the second side region. An angle which is not 0 degree exists between the electrodes which are overlapped. Such flexible capacitive touch sensing device can be applied to generate a HOD device with different sizes.

IPC Classes  ?

  • G01D 5/24 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means influencing the magnitude of a current or voltage by varying capacitance
  • B62D 1/06 - Rims, e.g. with heating means; Rim covers
  • H05B 3/34 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater flexible, e.g. heating nets or webs
  • B32B 5/02 - Layered products characterised by the non-homogeneity or physical structure of a layer characterised by structural features of a layer comprising fibres or filaments
  • B32B 7/12 - Interconnection of layers using interposed adhesives or interposed materials with bonding properties
  • B62D 1/04 - Hand wheels

57.

LIGHT CONTROL CIRCUIT OF OPTICAL ENCODER AND OPERATING METHOD THEREOF

      
Application Number 18239773
Status Pending
Filing Date 2023-08-30
First Publication Date 2023-12-21
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Shim, Kuan-Choong
  • Chew, Gim-Eng

Abstract

There is provided a light control circuit including a light detector, a frequency detector, an error amplifier, an NMOS driver and a light source. The frequency detector identifies a signal frequency according to detected voltage signals outputted by the light detector and generates a control signal accordingly. The NMOS driver changes a drive current of the light source according to an output of the error amplifier. The error amplifier changes a bandwidth thereof according to the control signal from the frequency detector to regulate a response time of the drive current of the light source.

IPC Classes  ?

  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales
  • G01D 5/244 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means generating pulses or pulse trains

58.

Pixel circuit adopting optically sensitive material with suppressed dark current

      
Application Number 17873161
Grant Number 11849237
Status In Force
Filing Date 2022-07-26
First Publication Date 2023-12-19
Grant Date 2023-12-19
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor Yonemoto, Kazuya

Abstract

There is provided a pixel circuit including an optically sensitive material (OSM) layer and a readout circuit. The OSM layer is arranged upon the readout circuit, and used to sense light energy to generate signal charges to be integrated in a floating diffusion. The readout circuit includes a source follower for amplifying a voltage on the floating diffusion within a readout interval, and the voltage on the floating diffusion is not changed by an external voltage pulse within the readout interval.

IPC Classes  ?

  • H04N 25/63 - Noise processing, e.g. detecting, correcting, reducing or removing noise applied to dark current
  • H04N 25/77 - Pixel circuitry, e.g. memories, A/D converters, pixel amplifiers, shared circuits or shared components
  • H04N 25/75 - Circuitry for providing, modifying or processing image signals from the pixel array

59.

HIGH PRECISION PHOTONIC DISTANCE METER CIRCUIT AND DISTANCE MEASURING METHOD

      
Application Number 17840523
Status Pending
Filing Date 2022-06-14
First Publication Date 2023-12-14
Owner PixArt Imaging Incorporation (Taiwan, Province of China)
Inventor Ho, Wen-Hao

Abstract

A distance meter circuit includes: a driver for generating a driving pulse according to a measuring control signal to drive a laser diode to emit a light pulse to an object; a photonic sensing device for generating a first light conversion signal in response to the light pulse reflected by the object; a read-out circuit for measuring a TOF of the light pulse reflected by the object; an adjustable delay circuit for providing an adjustable delay time between the measuring control signal and the measuring trigger signal, or between the measuring control signal and the driving pulse; and a DLL controller for generating a delay control signal by comparing a phase difference between the measuring trigger signal and a driving related signal related to the driving pulse such that the phase difference is regulated to a predetermined value.

IPC Classes  ?

  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves
  • G01S 7/484 - Transmitters
  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak

60.

IMAGE SENSOR EMPLOYING AVALANCHE DIODE AND SHARED OUTPUT CIRCUIT

      
Application Number 18231435
Status Pending
Filing Date 2023-08-08
First Publication Date 2023-12-14
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Huang, Sen-Huang
  • Tsai, Tso-Sheng

Abstract

There is provided an image sensor employing an avalanche diode. The image sensor includes a plurality of pixel circuits arranged in a matrix, a plurality of pulling circuits, a plurality of output circuits and a global current source circuit. Each of the plurality of pixel circuits includes a single photon avalanche diode and a P-type or N-type select switch transistor. Each of the plurality of pulling circuits is arranged corresponding to one pixel circuit column. The global current source circuit is used to form a current mirror with each of the plurality of pulling circuits. Each of the plurality of output circuits is shared by at least two pixel circuits.

IPC Classes  ?

  • H04N 25/75 - Circuitry for providing, modifying or processing image signals from the pixel array
  • H01L 27/146 - Imager structures
  • H04N 25/76 - Addressed sensors, e.g. MOS or CMOS sensors

61.

PIXEL CIRCUIT SELECTING TO OUTPUT TIME DIFFERENCE DATA OR IMAGE DATA

      
Application Number 18235370
Status Pending
Filing Date 2023-08-18
First Publication Date 2023-12-07
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Liu, Ren-Chieh
  • Chiu, Yi-Cheng

Abstract

There is provided a pixel circuit capable of outputting time difference data or image data, and including a first temporal circuit and a second temporal circuit. The first temporal circuit is used to store detected light energy of a first interval and a second interval as the time difference data. The second temporal circuit is used to store detected light energy of the second interval as the image data. The pixel circuit is used to output a pulse width signal corresponding to the time difference data or the image data in different operating modes.

IPC Classes  ?

62.

OPTICAL MOUSE AND LIGHT PIPE THEREOF

      
Application Number 18235884
Status Pending
Filing Date 2023-08-21
First Publication Date 2023-12-07
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Lee, Hun-Kwang
  • Lee, Sai-Mun
  • Goh, Priscilla Tze-Wei
  • Chu, Lye-Pin

Abstract

An optical mouse operated with respect to an illuminated surface outside the optical mouse is provided. The optical mouse includes a light source configured to emit a light beam, and a light pipe including a first optical element and a second optical element. The light beam enters the light pipe through the first optical element, and then propagates in the light pipe from the first optical element to the second optical element without reflection, and then leaves the light pipe through the second optical element, and then illuminates the illuminated surface. The light pipe does not have any protrusion extending therefrom and attached to a front surface of the light source.

IPC Classes  ?

  • G02B 27/09 - Beam shaping, e.g. changing the cross-sectioned area, not otherwise provided for
  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
  • G06F 3/0354 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks

63.

Optical navigation system and optical sensor control method

      
Application Number 17830367
Grant Number 11841994
Status In Force
Filing Date 2022-06-02
First Publication Date 2023-12-07
Grant Date 2023-12-12
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Liew, Tong Sen

Abstract

An optical navigation system comprising: a control circuit; and an optical sensor, comprising a plurality of pins, wherein the optical sensor is configured to sense optical data and configured to compute motions according to the optical data. The optical sensor outputs the motions to the control circuit via a complex pin among the pins in a first mode. The optical sensor outputs data other than the motions to the control circuit via the complex pin in a second mode. The present invention also discloses an optical navigation system which shares a pin for receiving different types of data.

IPC Classes  ?

  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
  • G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
  • G06F 3/0354 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks

64.

MOTION DETECTING SYSTEM HAVING MULTIPLE SENSORS

      
Application Number 18233904
Status Pending
Filing Date 2023-08-15
First Publication Date 2023-11-30
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Chang, Ting-Yang
  • Chang, Yen-Min
  • Chen, Nien-Tse

Abstract

The present invention provides a motion detecting system, which includes a light source module, a plurality of image sensors and a control unit. The light source module illuminates at least one object. The image sensors respectively detect the object under the light emitted by the light source module to generate a plurality of detection results. The control unit is coupled to the image sensors, and generates a control command according to the detection results.

IPC Classes  ?

  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • G06V 40/20 - Movements or behaviour, e.g. gesture recognition
  • H04N 23/90 - Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums

65.

OPTICAL SENSOR FOR ODOMETRY TRACKING TO DETERMINE TRAJECTORY OF A WHEEL

      
Application Number 18223021
Status Pending
Filing Date 2023-07-17
First Publication Date 2023-11-30
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Leong, Keen-Hun
  • Kok, Boon-How
  • Donald, Dennis Dominic

Abstract

An optical sensor system for determining trajectory of a wheel includes: a wheel mounted in a wheel arch having an outer surface covered with evenly-spaced wheel treads; an optical sensor mounted in the wheel arch but not touching the wheel, for performing a plurality of counts corresponding to respectively capturing a plurality of images of the wheel according to the wheel treads, and comparing the captured images with a reference image to determine a 2D displacement. The optical sensor further performs a calculation to convert the measured 2D displacement of the wheel from its original position into a distance the wheel travels along a path in order to determine the wheel trajectory.

IPC Classes  ?

  • G06T 7/20 - Analysis of motion
  • B60W 30/00 - Purposes of road vehicle drive control systems not related to the control of a particular sub-unit, e.g. of systems using conjoint control of vehicle sub-units
  • B62D 15/02 - Steering position indicators
  • G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
  • G01C 22/00 - Measuring distance traversed on the ground by vehicles, persons, animals or other moving solid bodies, e.g. using odometers or using pedometers
  • H04N 23/90 - Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
  • G06F 3/0362 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 1D translations or rotations of an operating part of the device, e.g. scroll wheels, sliders, knobs, rollers or belts

66.

MOTION DETECTION DEVICE USING TEMPORAL DIFFERENCE AND SPATIAL DIFFERENCE OF PIXEL DATA

      
Application Number 18233892
Status Pending
Filing Date 2023-08-15
First Publication Date 2023-11-30
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Liu, Ren-Chieh
  • Ko, Yi-Hsien
  • Liu, Han-Chi

Abstract

There is provided an optical sensor including a pixel matrix and a readout circuit. The pixel matrix includes multiple pixels arranged in a matrix, and each of the multiple pixels outputs temporal difference pixel data. The readout circuit sequentially reads the pixel matrix using a readout block, and performs the hybrid difference calculation on the temporal difference pixel data of pixels within the readout block. Accordingly, the output of the readout circuit is the data accomplishing temporal difference and spatial difference.

IPC Classes  ?

  • G06V 40/20 - Movements or behaviour, e.g. gesture recognition
  • G06V 10/94 - Hardware or software architectures specially adapted for image or video understanding
  • H04N 25/75 - Circuitry for providing, modifying or processing image signals from the pixel array

67.

WIRELESS COMMUNICATION SYSTEM CAPABLE OF SWITCHING CONTROL BETWEEN DIFFERENT HOST COMPUTERS

      
Application Number 18172325
Status Pending
Filing Date 2023-02-22
First Publication Date 2023-11-23
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Zeung, Ping-Shun
  • Hsieh, Chung-Han
  • Chen, Pao-Wei
  • Lin, Kun-Yuan

Abstract

The present disclosure provides a wireless communication system including a first host computer, a communication dongle, a second host computer and an input device. The communication dongle is connected to the first host computer via a USB interface, connected to the second host computer via a Bluetooth interface, and connected to the input device via a RF interface. The first host computer has first application software for intercepting the operating signal(s) of the input device and transferring, via the communication dongle, to the second host computer to be executed thereby. The first application software also controls the first host computer to ignore the operating signal(s) during the operating signal(s) is being transferred to the second host computer.

IPC Classes  ?

  • G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
  • G06F 3/023 - Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes
  • G06F 3/0354 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
  • G06F 3/14 - Digital output to display device
  • G06F 13/10 - Program control for peripheral devices

68.

DEVICE FOR DETECTING USER INPUT WITH FORCE SENSOR IN STEM THEREOF

      
Application Number 18230173
Status Pending
Filing Date 2023-08-04
First Publication Date 2023-11-23
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Chen, Yen-Po
  • Liu, Hao-Che
  • Chu, Yen-Chang
  • Sun, Chih-Ming

Abstract

There is provided a force sensor including a substrate and a polymer material layer. The substrate has a circuit layout that includes a first electrode and a second electrode configured to form a capacitor therebetween. The polymer material layer covers at least on a space between the first electrode and the second electrode, and is used to change capacitance of the capacitor while being pressed. The force sensor is arranged inside a stem of an earphone for detecting the user input.

IPC Classes  ?

  • G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
  • H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
  • H05K 1/03 - Use of materials for the substrate

69.

VIRTUAL REALITY SYSTEM INCORPORATING WEARABLE ACCESSARY

      
Application Number 18222008
Status Pending
Filing Date 2023-07-14
First Publication Date 2023-11-16
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Chang, Yen-Min

Abstract

A virtual reality system including an image viewing device and a wearable accessary is provided. The image viewing device detects a biometric characteristic to identify a user ID according to the biometric characteristic, outputs an ID signal associated with the identified user ID and shows video stream associated with the identified user ID. The wearable accessary detects an attached status and movement of the wearable accessary after receiving the ID signal, and sends a control signal to the image viewing device to change image content in the video stream according to the detected movement of the wearable accessary when the attached status indicates continuous wearing.

IPC Classes  ?

  • G06F 21/32 - User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
  • A61B 5/1172 - Identification of persons based on the shapes or appearances of their bodies or parts thereof using fingerprinting
  • A61B 5/117 - Identification of persons
  • A61B 5/1171 - Identification of persons based on the shapes or appearances of their bodies or parts thereof
  • G06V 40/70 - Multimodal biometrics, e.g. combining information from different biometric modalities

70.

OPTO-MECHANICAL STRUCTURE DESIGN OF THIN LGA PACKAGE WITH GLASS COVER

      
Application Number 18223562
Status Pending
Filing Date 2023-07-19
First Publication Date 2023-11-16
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Lee, Sai Mun
  • T'Ng, Chee Pin

Abstract

The invention provides an optical sensor package. The optical sensor package includes: a substrate; a sensor disposed on the substrate; a glass cover disposed directly on the sensor; and a cap disposed on the substrate comprised of a solid perimeter surrounding the sensor and a ceiling having a cut-out section above the glass cover. The thickness of the cap is 0.20 mm.

IPC Classes  ?

  • G01J 1/04 - Optical or mechanical part
  • H05K 1/18 - Printed circuits structurally associated with non-printed electric components

71.

SENSING ELEMENT HAVING PIXELS EXPOSED BY APERTURES INCREASING ALONG DIFFERENT DIRECTIONS

      
Application Number 18223777
Status Pending
Filing Date 2023-07-19
First Publication Date 2023-11-16
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Hsu, En-Feng
  • Liu, Chia-Yu

Abstract

A sensing element includes a plurality of sensing pixel areas arranged in matrix, wherein each of the plurality of sensing pixel areas includes a first pixel, a second pixel, a first shielding layer, a second shielding layer and at least one micro lens. The second pixel is adjacent to the first pixel in a predetermined direction. The first shielding layer is disposed on the first pixel and has a first opening, wherein an aperture of the first opening increases along the predetermined direction from a center of the first pixel. The second shielding layer is disposed on the second pixel and has a second opening, wherein a shape of the second opening is mirror symmetrical with that of the first opening in the predetermined direction. The at least one micro lens is disposed on the first shielding layer and the second shielding layer.

IPC Classes  ?

  • G01C 3/08 - Use of electric radiation detectors
  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer

72.

PORTABLE ELECTRONIC DEVICE AND OPERATION METHOD

      
Application Number 18225443
Status Pending
Filing Date 2023-07-24
First Publication Date 2023-11-16
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Wang, Guo-Zhen
  • Lin, Han-Chang

Abstract

A portable electronic device and an operation method are provided. The portable electronic device includes a body, a screen, a camera, an image sensor and a main system. The image sensor continually captures a first image outside the body with a first resolution and a first power consumption. The camera is turned on in the first state of the portable electronic device by the main system to capture a second image outside the body with a second power consumption and a second resolution only when the face image information appeared for over two seconds on the screen is detected by the image sensor from the first image. The second resolution is higher than the first resolution, and the second power consumption is higher than the first power consumption.

IPC Classes  ?

  • G06V 40/16 - Human faces, e.g. facial parts, sketches or expressions
  • G06V 10/10 - Image acquisition
  • H04N 23/667 - Camera operation mode switching, e.g. between still and video, sport and normal or high and low resolution modes
  • H04N 23/611 - Control of cameras or camera modules based on recognised objects where the recognised objects include parts of the human body
  • H04N 23/65 - Control of camera operation in relation to power supply

73.

MOBILE ROBOT DETERMINING FUTURE EXPOSURE TIME OF OPTICAL SENSOR

      
Application Number 18226503
Status Pending
Filing Date 2023-07-26
First Publication Date 2023-11-16
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wang, Guo-Zhen

Abstract

There is provided a mobile robot that controls an exposure time of an optical sensor during a time interval during which images of a gap between tiles are captured. At an end of the time interval that an image of a gap between tiles is captured, the exposure time of the optical sensor is adjust to the exposure time being used right before the time interval to avoid high brightness of the captured image while the image of a gap between tiles is suddenly disappeared from a field of view of the optical sensor.

IPC Classes  ?

  • B25J 9/16 - Programme controls
  • B25J 13/08 - Controls for manipulators by means of sensing devices, e.g. viewing or touching devices
  • G06T 7/70 - Determining position or orientation of objects or cameras
  • B25J 5/00 - Manipulators mounted on wheels or on carriages
  • B25J 9/00 - Programme-controlled manipulators
  • G05D 1/02 - Control of position or course in two dimensions
  • B25J 11/00 - Manipulators not otherwise provided for
  • A47L 11/40 - Parts or details of machines not provided for in groups , or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers or levers

74.

PHOTODIODE AND MANUFACTURING METHOD THEREOF

      
Application Number 18129108
Status Pending
Filing Date 2023-03-31
First Publication Date 2023-11-16
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • He, Ren-Yu
  • Wang, Yu-Wei

Abstract

A photodiode comprises a substrate, a first collection layer, a first type well layer, a second type well layer and a second collection layer. The substrate has a first surface and a second surface. The substrate defines a bias region and a signal region. The first collection layer, the first type well layer, the first type well layer, the second type well layer, and the second collection layer are formed in the substrate. The first type well layer is disposed between the first surface and the first collection layer. The second type well layer is disposed between the first type well layer and the first collection layer. The second collection layer is located between the first surface and the second well layer.

IPC Classes  ?

75.

INDUCTOR CIRCUIT AND WIRELESS COMMUNICATION DEVICE HAVING INDUCTOR CIRCUIT INTEGRATED ON SINGLE CHIP DIE TO SAVE MORE CIRCUIT COSTS

      
Application Number 18226757
Status Pending
Filing Date 2023-07-26
First Publication Date 2023-11-16
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Lai, Mu-Tsung
  • Chiang, Tung-Ying
  • Hou, Chien-An
  • Chen, Chia-Pei

Abstract

An inductor circuit includes a receiver inductive circuit, a transmitter inductive circuit, and an antenna inductive circuit which are implemented on a single chip die; the receiver inductive circuit is disposed on a specific ring of a specific plane to form a ring shape; the transmitter inductive circuit and the antenna inductive circuit are disposed inside the specific ring and surrounded by the specific ring of the specific plane; and, a circuit area, occupied by the transmitter inductive circuit, inside the specific ring and on the specific plane, is larger than a circuit area occupied by the receiver inductive circuit and by the antenna inductive circuit.

IPC Classes  ?

  • H04B 5/00 - Near-field transmission systems, e.g. inductive loop type
  • H04B 1/401 - Circuits for selecting or indicating operating mode

76.

OPTICAL SENSOR AND PHOTODIODE

      
Application Number 17740371
Status Pending
Filing Date 2022-05-10
First Publication Date 2023-11-16
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wang, Yu-Wei

Abstract

A photodiode, comprising: a first photodiode, comprising a p type substrate and a signal output region; a positive electric field providing structure, provided in the P type substrate, configured to receive a positive voltage to provide a positive electric field according to the positive voltage to attract electrons in the P type substrate; wherein an avalanche region is formed when the positive voltage is larger than a threshold voltage, thereby a current path is formed between the signal output region and the positive electric field providing structure. The present invention also discloses an optical sensor comprising pixels with different light sensitivities.

IPC Classes  ?

  • G01S 7/4863 - Detector arrays, e.g. charge-transfer gates
  • H01L 31/107 - Devices sensitive to infrared, visible or ultraviolet radiation characterised by only one potential barrier or surface barrier the potential barrier working in avalanche mode, e.g. avalanche photodiode
  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves

77.

OPTICAL NAVIGATION DEVICE WHICH CAN DETECT AND RECORD ABNORMAL REGION

      
Application Number 17737975
Status Pending
Filing Date 2022-05-05
First Publication Date 2023-11-09
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Shyu, Ning
  • Chiang, Han-Lin

Abstract

An optical navigation device, comprising: at least one image sensor, configured to sense at least one sensing image; and a processing circuit, configured to determine at least one abnormal region in the sensing image and control the optical navigation device to inform the abnormal region exists to a user.

IPC Classes  ?

  • G05D 1/02 - Control of position or course in two dimensions
  • G06V 10/56 - Extraction of image or video features relating to colour
  • G06T 7/90 - Determination of colour characteristics
  • A47L 11/24 - Floor-sweeping machines, motor-driven
  • A47L 11/40 - Parts or details of machines not provided for in groups , or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers or levers

78.

ROBOT AND MOVABLE DEVICE CAPABLE OF IDENTIFYING SURFACE MATERIAL

      
Application Number 18221084
Status Pending
Filing Date 2023-07-12
First Publication Date 2023-11-09
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Yang, Chung-Ting
  • Tsai, Kai-Ho

Abstract

There is provided a robot including a first light source, a second light source, an image sensor and a processor. The processor is used to calculate an image quality of an image frame captured by the image sensor when the second light source is being turned on. The processor then determines whether to switch the second light source back to the first light source according to the image quality to accordingly identify the material of an operation surface.

IPC Classes  ?

  • A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
  • A47L 11/40 - Parts or details of machines not provided for in groups , or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers or levers
  • B25J 19/02 - Sensing devices
  • A47L 9/30 - Arrangement of illuminating devices
  • B25J 11/00 - Manipulators not otherwise provided for

79.

OPTICAL SENSOR DEVICE HAVING SENSING PIXELS AND SELF-POWERED PIXELS

      
Application Number 18222468
Status Pending
Filing Date 2023-07-16
First Publication Date 2023-11-09
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wang, Guo-Zhen

Abstract

A sensor device includes an image sensing array, a frame buffer, a first read line, a second read line and an energy accumulator. The image sensing array is configured to sense reflected light from a working surface and includes a plurality of sensing pixels and a plurality of self-powered pixels. The sensing pixels respectively output image data according to the sensed reflected light. The self-powered pixels respectively output photocurrent according to the sensed reflected light. The first read line is coupled between the sensing pixels and the frame buffer. The second read line is coupled between the self-powered pixels and the frame buffer. The energy accumulator stores electrical energy of the photocurrent via a charge path between the self-powered pixels and the energy accumulator.

IPC Classes  ?

  • G06F 1/3234 - Power saving characterised by the action undertaken
  • G06F 3/0354 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
  • G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form

80.

AUTO DETECTION SYSTEM FOR COOKING ASSISTANCE AND HAIR DRYER WITH THERMAL DETECTION

      
Application Number 18224288
Status Pending
Filing Date 2023-07-20
First Publication Date 2023-11-09
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Sun, Chih-Ming
  • Tsai, Ming-Han
  • Lin, Chiung-Wen
  • Yu, Po-Wei
  • Wang, Wei-Ming
  • Huang, Sen-Huang

Abstract

There is provided an auto detection system including a thermal detection device and a host. The host controls an indication device to indicate a prompt message or detection results according to a slope variation of voltage values or 2D distribution of temperature values detected by the thermal detection device, wherein the voltage values include the detected voltage of a single pixel or the sum of detected voltages of multiple pixels of a thermal sensor.

IPC Classes  ?

  • F24C 15/20 - Removing cooking fumes
  • G01J 5/00 - Radiation pyrometry, e.g. infrared or optical thermometry
  • A61F 13/42 - Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators with wetness indicator or alarm
  • B66B 5/00 - Applications of checking, fault-correcting or safety devices in elevators
  • G01J 5/10 - Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors

81.

CAPACITIVE TOUCH CONTROL SYSTEM WITH FREQUENCY BOOSTER

      
Application Number 18224587
Status Pending
Filing Date 2023-07-21
First Publication Date 2023-11-09
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wu, Sung-Han

Abstract

There is provided a capacitive touch control system adapted to detect low frequency signals, including a touch panel and an analog front end. The analog front end includes a frequency booster, which boosts a low frequency signal outputted by the touch panel using a variable reference frequency corresponding to different function symbols of the low frequency signal such that resistance of a resistor of an amplifier in the analog front end needs not to be increased thereby reducing the manufacturing cost and a leakage voltage drop on the resistor.

IPC Classes  ?

  • G06F 3/041 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
  • G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means

82.

SYSTEM HAVING GESTURE SENSOR

      
Application Number 18216677
Status Pending
Filing Date 2023-06-30
First Publication Date 2023-11-02
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Wu, Chung-Yuo
  • Ko, Yi-Hsien
  • Chen, Nientse

Abstract

A system having a gesture sensor is provided. The gesture sensor includes an image sensing unit and a processing unit. The image sensing unit captures at least one gesture image of the user. The processing unit is electrically connected to the image sensing unit. The processing unit sends at least one control command to a control valve of the system according to the gesture image to change a status of the flow.

IPC Classes  ?

  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • A63B 24/00 - Electric or electronic controls for exercising apparatus of groups
  • A63B 69/36 - Training appliances or apparatus for special sports for golf
  • A63B 71/06 - Indicating or scoring devices for games or players
  • G06F 3/04845 - Interaction techniques based on graphical user interfaces [GUI] for the control of specific functions or operations, e.g. selecting or manipulating an object, an image or a displayed text element, setting a parameter value or selecting a range for image manipulation, e.g. dragging, rotation, expansion or change of colour

83.

IMAGE RECOGNITION METHOD AND SYSTEM BASED ON DEEP LEARNING

      
Application Number 18218045
Status Pending
Filing Date 2023-07-04
First Publication Date 2023-11-02
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor Wang, Guo-Zhen

Abstract

An image recognition method and system based on deep learning are provided. The image recognition system includes a first recognizing engine, at least one second recognizing engine and a processing circuit. The second recognizing engine is activated to recognize an image when the first recognizing engine is recognizing the image. The processing circuit determines whether to interrupt the first recognizing engine recognizing the image according to a result outputted by the second recognizing engine after the second recognizing engine completes recognition of the image.

IPC Classes  ?

  • G06V 20/00 - Scenes; Scene-specific elements
  • G06N 20/00 - Machine learning
  • G06V 10/44 - Local feature extraction by analysis of parts of the pattern, e.g. by detecting edges, contours, loops, corners, strokes or intersections; Connectivity analysis, e.g. of connected components
  • G06F 18/2413 - Classification techniques relating to the classification model, e.g. parametric or non-parametric approaches based on distances to training or reference patterns
  • G06F 18/243 - Classification techniques relating to the number of classes
  • G06N 3/045 - Combinations of networks
  • G06V 10/764 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using classification, e.g. of video objects
  • G06V 10/82 - Arrangements for image or video recognition or understanding using pattern recognition or machine learning using neural networks
  • G06V 20/70 - Labelling scene content, e.g. deriving syntactic or semantic representations
  • G06N 3/08 - Learning methods

84.

SIGNAL PROCESSING CIRCUIT OF ANTI-POLLUTION OPTICAL ENCODER

      
Application Number 18219729
Status Pending
Filing Date 2023-07-10
First Publication Date 2023-11-02
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Shim, Kuan-Choong
  • Chew, Gim-Eng
  • Goh, Priscilla Tze-Wei
  • Lim, Meng-Yee

Abstract

There is provided an optical encoder including an encoding medium, multiple photodiodes and a signal processing circuit. The encoding medium includes an index track. The index track includes a first index pattern and a second index pattern. The multiple photodiodes include a first index photodiode, a second index photodiode and a reference index photodiode for receiving modulated light from the first index pattern and the second index pattern. When the first index photodiode is aligned with the first index pattern and the second index photodiode is aligned with the second index pattern, the signal processing circuit outputs a triggering signal.

IPC Classes  ?

  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales

85.

MOBILE ROBOT WITH IMPROVED ACCURACY AND GENERATING THREE-DIMENSIONAL DEPTH MAP

      
Application Number 18219921
Status Pending
Filing Date 2023-07-10
First Publication Date 2023-11-02
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Wang, Guo-Zhen
  • Peng, Tse-En

Abstract

There is provided a mobile robot that performs the de-flickering and different auto exposures in a pixel array in the range estimation to be adaptable to different operating scenarios, and constructs a three-dimensional depth map to lower the cost.

IPC Classes  ?

  • B25J 9/00 - Programme-controlled manipulators
  • B25J 9/16 - Programme controls
  • G06T 7/70 - Determining position or orientation of objects or cameras

86.

CLEANING ROBOT, CLEANING ROBOT SYSTEM AND OPERATING METHOD THEREOF

      
Application Number 18206587
Status Pending
Filing Date 2023-06-06
First Publication Date 2023-11-02
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Nien, Chu-Hung
  • Huang, Chao-Chien
  • Yang, Shu-Sian
  • Wei, Wei-Feng

Abstract

There is provided a cleaning robot system including a charging station and a cleaning robot. The charging station includes multiple positioning beacons. The cleaning robot includes an image sensor and a processor. The image sensor is used to acquire light generated by the multiple positioning beacons on the charging station and generate an image frame. The processor is electrically connected to the image sensor, and used to calculate a relative position with respect to the charging station according to beacon images of the multiple positioning beacons in the image frame to determine a recharge path accordingly.

IPC Classes  ?

  • A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
  • A47L 11/40 - Parts or details of machines not provided for in groups , or not restricted to one of these groups, e.g. handles, arrangements of switches, skirts, buffers or levers
  • B60L 53/36 - Means for automatic or assisted adjustment of the relative position of charging devices and vehicles by positioning the vehicle
  • G05D 1/02 - Control of position or course in two dimensions
  • H02J 7/00 - Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries

87.

TIME DELAY INTEGRATION SENSOR WITH PIXELS HAVING DIFFERENT SENSING ABILITY

      
Application Number 18350905
Status Pending
Filing Date 2023-07-12
First Publication Date 2023-11-02
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor Liu, Ren-Chieh

Abstract

The present disclosure provides a time delay integration (TDI) sensor using a rolling shutter. The TDI sensor includes multiple pixel columns. Each pixel column includes multiple pixels arranged in an along-track direction, wherein two adjacent pixels or two adjacent pixel groups in every pixel column have a separation space therebetween. The separation space is equal to a pixel height multiplied by a time ratio of a line time difference of the rolling shutter and a frame period, or equal to a summation of at least one pixel height and a multiplication of the pixel height by the time ratio of the line time difference and the frame period. The TDI sensor generates image frames using pixels having different sensing ability for a processor to perform image combination.

IPC Classes  ?

  • H04N 25/768 - Addressed sensors, e.g. MOS or CMOS sensors for time delay and integration [TDI]

88.

NON-SOLID MATERIAL DETECTION METHOD, NON-SOLID MATERIAL DETECTION DEVICE, DISTANCE COMPUTING DEIVCE, DISTANCE COMPUTING METHOD

      
Application Number 17724509
Status Pending
Filing Date 2022-04-20
First Publication Date 2023-10-26
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Wang, Guo-Zhen

Abstract

A non-solid material detection device, comprising: a processing circuit; an image sensor; a first light source, configured to emit first light following a first direction; a second light source, configured to emit second light following a second direction. If the non-solid material detection device is located on the surface, the first direction is toward a surface and the second direction is leaving or parallel with the surface. The processing circuit determines an obstacle based on a second sensing image generated according to the second light and determines non-solid material based on a first sensing image generated according to the first light. The present invention also discloses a distance computing device. Via the present invention, the non-solid material detection and the distance computing can be more accurate.

IPC Classes  ?

  • G01S 17/08 - Systems determining position data of a target for measuring distance only
  • G01S 7/481 - Constructional features, e.g. arrangements of optical elements
  • A47L 9/28 - Installation of the electric equipment, e.g. adaptation or attachment to the suction cleaner; Controlling suction cleaners by electric means
  • A47L 9/00 - DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL - Details or accessories of suction cleaners, e.g. mechanical means for controlling the suction or for effecting pulsating action; Storing devices specially adapted to suction cleaners or parts thereof; Carrying-vehicles specially adapted for suction cleaners
  • G06V 20/58 - Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads

89.

INPUT METHOD AND CONTROLLER OF TOUCH KEYBOARD

      
Application Number 17945204
Status Pending
Filing Date 2022-09-15
First Publication Date 2023-10-19
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Chen, Yu-Han
  • Su, Tse-Chung
  • Wu, Sung-Han
  • Chuang, Xiao-Lin
  • Liao, Chi-Chieh

Abstract

An input method and a controller of a touch keyboard are provided. The input method includes: detecting a touch behavior performed on the touch keyboard, and identifying the touch behavior to determine whether to output mouse event data, keyboard event data or a combination of mouse event data and keyboard event data.

IPC Classes  ?

  • G06F 3/023 - Arrangements for converting discrete items of information into a coded form, e.g. arrangements for interpreting keyboard generated codes as alphanumeric codes, operand codes or instruction codes

90.

FORCE SENSOR WITH POLYMER MATERIAL LAYER

      
Application Number 18207680
Status Pending
Filing Date 2023-06-09
First Publication Date 2023-10-19
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor Sun, Chih-Ming

Abstract

There is provided a force sensor including a substrate and a polymer material layer. The substrate has a circuit layout that includes a first electrode and a second electrode configured to form a capacitor therebetween. The polymer material layer covers at least on a space between the first electrode and the second electrode, and is used to change capacitance of the capacitor while being pressed.

IPC Classes  ?

  • G01L 1/14 - Measuring force or stress, in general by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators
  • H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
  • H05K 1/03 - Use of materials for the substrate

91.

POINTING DEVICE AND METHOD CAPABLE OF CORRECTING ITS USB STATE BY MONITORING VOLTAGE/STATE OF USB COMMUNICATION INTERFACE

      
Application Number 18212198
Status Pending
Filing Date 2023-06-21
First Publication Date 2023-10-19
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Chen, Ching-Chih
  • Li, Jr-Yi

Abstract

A method of a pointing device which is used to be coupled to a host system through a universal serial bus (USB) communication interface includes: providing a USB driver device to communicate with the host system via the USB communication interface; monitoring a specific voltage change or a specific data transmission state of the USB communication interface to generate a monitoring result; and correcting a USB state of the USB driver device when the monitoring result indicates that a undefined or abnormal behavior of the host system occurs.

IPC Classes  ?

  • G06F 13/42 - Bus transfer protocol, e.g. handshake; Synchronisation
  • G06F 13/38 - Information transfer, e.g. on bus
  • G06F 13/10 - Program control for peripheral devices

92.

Color recognition method and barcode detection device using the same

      
Application Number 17844285
Grant Number 11829832
Status In Force
Filing Date 2022-06-20
First Publication Date 2023-10-12
Grant Date 2023-11-28
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor Yao, Wen-Han

Abstract

There is provided a barcode detection device including an image sensor and a processor. The image sensor captures an image frame of a color barcode. The processor sequentially processes every row of the image frame to find at least one color segment in each row of the image frame, categorizes color segments of a same color in one cluster according to a position relationship and a color similarity of the color segments in the image frame, and recognize a color of the pixels in one cluster according to color parameters of pixels in said one cluster.

IPC Classes  ?

  • G06T 7/90 - Determination of colour characteristics
  • G06K 7/10 - Methods or arrangements for sensing record carriers by corpuscular radiation
  • G06K 7/14 - Methods or arrangements for sensing record carriers by corpuscular radiation using light without selection of wavelength, e.g. sensing reflected white light

93.

LIQUID PROVIDING SYSTEM

      
Application Number 18207138
Status Pending
Filing Date 2023-06-08
First Publication Date 2023-10-12
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Wang, Guo-Zhen
  • Peng, Tse-En

Abstract

A liquid providing system of detecting a target container includes a main body, a holder, an optical sensor and an operational processor. The main body has a supporting platform. The holder is disposed on the supporting platform, and the holder is made by low reflectivity material and adapted to hold the target container. The optical sensor is disposed above the supporting platform and adapted to output a detection image containing the target container and the holder. The operational processor is electrically connected to the optical sensor, and adapted to analyze the detection image and then acquire an effective feature inside the detection image for distinguishing the target container from the holder.

IPC Classes  ?

  • G01F 23/292 - Light
  • G01F 23/80 - Arrangements for signal processing
  • G06T 7/62 - Analysis of geometric attributes of area, perimeter, diameter or volume

94.

OPTICAL TIME-OF-FLIGHT SENSOR, METHOD, AND PROCESSING CIRCUIT CAPABLE OF AVOIDING MISJUDGMENT OF CHANNEL SAMPLING

      
Application Number 17718250
Status Pending
Filing Date 2022-04-11
First Publication Date 2023-10-12
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Chung, Yueh-Lin
  • Tsai, Tso-Sheng

Abstract

An optical time-of-flight sensor includes a sensor array and a channel sampling circuit. The channel sampling circuit is arranged for receiving a photon pulse signal, generated from a senor unit of the sensor array, receiving a first channel selection signal to generate a first freezing signal, generating a first channel event signal to a first counting circuit in response to the first freezing signal and the photon pulse signal, and receiving the first channel event signal to generate and count a pulse number of the photon pulse signal received by the first channel; when a rising edge of the photon pulse signal occurs, the first freezing signal is kept at a previous state until a falling edge of the photon pulse signal occurs.

IPC Classes  ?

  • G01S 7/4865 - Time delay measurement, e.g. time-of-flight measurement, time of arrival measurement or determining the exact position of a peak
  • G01S 17/894 - 3D imaging with simultaneous measurement of time-of-flight at a 2D array of receiver pixels, e.g. time-of-flight cameras or flash lidar
  • G01S 17/10 - Systems determining position data of a target for measuring distance only using transmission of interrupted, pulse-modulated waves

95.

BRIGHTNESS CONTROL METHOD OF PORTABLE DEVICE AND PORTABLE DEVICE USING THE SAME

      
Application Number 18208893
Status Pending
Filing Date 2023-06-13
First Publication Date 2023-10-12
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Hsu, En-Feng
  • Hsieh, Meng-Huan

Abstract

There is provided a portable electronic device including a backlight module, an ambient light sensor, a proximity sensor and a processing unit. The backlight module illuminates with backlight brightness. The ambient light sensor is configured to detect ambient light intensity. The proximity sensor is configured to detect an object. The processing unit is configured to activate the proximity sensor when the ambient light intensity detected by the ambient light sensor is lower than a predetermined value or decreases more than a predetermined range, and to maintain or reduce the backlight brightness according to a detection result of the proximity sensor. There is further provided an automatic detection method.

IPC Classes  ?

  • G09G 3/34 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source
  • G09G 3/36 - Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix by control of light from an independent source using liquid crystals

96.

COVER OF OPTICAL ENGINE WITH GUIDING STRUCTURE

      
Application Number 18336349
Status Pending
Filing Date 2023-06-16
First Publication Date 2023-10-12
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Lai, Hung-Yu
  • Wang, Yen-Hung
  • Su, Wen-Yen
  • Chen, Hui-Hsuan

Abstract

There is provided a bottom cover for being covered on an optical system. The bottom cover is attached in front of the optical engine. The bottom cover has a bottom surface for facing a working surface when the optical system is moving on the working surface, a first opening for emission light of the optical engine to go through and a second opening for reflected light from the working surface to go through. The bottom cover is further formed with guiding protrusions protruded out from the bottom surface toward the working surface and surrounding at least the second opening to guide soft materials on the working surface to away from the second opening.

IPC Classes  ?

  • H04N 23/54 - Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
  • G05D 1/02 - Control of position or course in two dimensions
  • H04N 23/55 - Optical parts specially adapted for electronic image sensors; Mounting thereof
  • H04N 23/56 - Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means

97.

IMAGE QUALITY IMPROVING METHOD, OPTICAL NAVIGATION DEVICE CONTROL METHOD, AND OPTICAL NAVIGATION DEVICE USING THE METHODS

      
Application Number 18143085
Status Pending
Filing Date 2023-05-04
First Publication Date 2023-10-05
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Chang, Bo-Yi
  • Lin, Yao-Hsuan

Abstract

An optical navigation device control method comprising: (a) computing brightness contrast information of original images captured by an image sensor of an optical navigation device; (b) computing brightness variation levels of the original images; (c) improving image qualities of the original images based on the brightness contrast information and the brightness variation levels, to generate adjusted images; and (d) computing movements of the optical navigation device based on displacement between the adjusted images. The optical navigation device is located on a surface. The step (d) comprises: collecting reference images of different parts of the surface for a plurality of combinations of moving directions of the optical navigation device and placement directions of the surface; and determining a type of the surface via comparing images of a current surface with the reference images.

IPC Classes  ?

  • G06F 3/03 - Arrangements for converting the position or the displacement of a member into a coded form
  • G06F 3/0354 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
  • H04N 23/71 - Circuitry for evaluating the brightness variation

98.

PHYSIOLOGICAL DETECTION DEVICE WITH WHITE LIGHT SOURCE

      
Application Number 18200561
Status Pending
Filing Date 2023-05-22
First Publication Date 2023-10-05
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Gu, Ren-Hau
  • Lin, Chih-Hsin

Abstract

There is provided a physiological detection device including a white light source, a molding and a pixel array. The white light source is configured to emit white light having a color temperature between 2800K and 3200K. The molding is formed upon the white light source and configured to constrain an emission angle of the white light between 60 and 80 degrees. The pixel array is covered by a filter layer having a passband between 570 nm and 620 nm configured to filter the white light.

IPC Classes  ?

  • A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons
  • A61B 5/024 - Measuring pulse rate or heart rate

99.

OPTICAL ENCODER WITH TWO INDEX PHOTODIODES

      
Application Number 18206584
Status Pending
Filing Date 2023-06-06
First Publication Date 2023-10-05
Owner PixArt Imaging Inc. (Taiwan, Province of China)
Inventor
  • Shim, Kuan-Choong
  • Chew, Gim-Eng

Abstract

There is provided an optical encoder including a photodiode array and a code disk opposite to each other. The photodiode array includes at least three sets of position photodiodes and two index photodiodes arranged transversally. The two index photodiodes are adjacently arranged at the same side of the at least three sets of position photodiodes. A first set of position photodiodes and a last set of position photodiodes of the at least three sets of position photodiodes are partially covered to alleviate the total harmonic distortion. The rest position photodiodes of the at least three sets of position photodiodes other than the first and last sets of position photodiodes are not covered.

IPC Classes  ?

  • G01D 5/347 - Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using optical means, i.e. using infrared, visible or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells using displacement encoding scales

100.

WEARABLE DEVICE

      
Application Number 18330371
Status Pending
Filing Date 2023-06-07
First Publication Date 2023-10-05
Owner PIXART IMAGING INC. (Taiwan, Province of China)
Inventor
  • Sun, Chih-Ming
  • Tsai, Ming-Han
  • Tsai, Cheng-Nan

Abstract

A wearable device includes a case and a temperature sensing device. The case has a first opening. The temperature sensing device is disposed inside the case of the wearable device. The temperature sensing device includes a first substrate, a sensor chip, and a metal shielding structure. The sensor chip is disposed on the first substrate. The metal shielding structure surrounds the sensor chip, and has a second opening. The sensor chip faces towards the first opening and the second opening.

IPC Classes  ?

  • G01J 5/02 - Constructional details
  • G01J 5/04 - Casings
  • H04N 5/33 - Transforming infrared radiation
  • G01J 5/06 - Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
  • B81B 7/00 - Microstructural systems
  • H04N 23/57 - Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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