Provided in the present application are a color temperature measurement method and apparatus, and an electronic device, which can accurately measure the color temperature of a light source. The method comprises: according to multi-channel data of a light source to be subjected to measurement and multi-channel data of a first standard light-source group, determining a proportionality coefficient corresponding to the first standard light-source group, wherein the proportionality coefficient corresponding to the first standard light-source group is used for representing the proportion of multi-channel data of each standard light source in the first standard light-source group to the multi-channel data of the light source to be subjected to measurement; according to the multi-channel data of the first standard light-source group and the proportionality coefficient corresponding to the first standard light-source group, determining a tristimulus value of the light source to be subjected to measurement; and determining, according to the tristimulus value, the color temperature of the light source to be subjected to measurement.
An ultrasonic fingerprint sensor and a manufacturing method therefor, and an electronic device. According to the manufacturing method for the ultrasonic fingerprint sensor provided by the present application, a voltage is applied to a piezoelectric film at the temperature of 20°C to 30°C for polarization. Waiting processes for cooling and heating are not needed, so that the polarization process time of the ultrasonic fingerprint sensor during production is shortened, and the production efficiency is improved; moreover, after the piezoelectric film is polarized and patterned to form a piezoelectric layer, the influence of the polarization mode on a second electrode does not need to be considered, so that the polarization mode of forming the second electrode is more flexible.
A method and apparatus for determining a drop depth of screen light leakage and an electronic device. The method comprises: acquiring sampling data according to a vertical synchronization signal; determining a first sampling sequence, and a second sampling sequence and/or a third sampling sequence according to the sampling data, wherein the first sampling sequence is a sampling sequence of a blank of a screen light leakage drop waveform, the second sampling sequence is a sampling sequence of the left side of the blank of the screen light leakage drop waveform, and the third sampling sequence is a sampling sequence of the right side of the blank of the screen drop waveform; and determining a drop depth according to the first sampling sequence, and the second sampling sequence and/or the third sampling sequence. According to the method, the accuracy of screen light leakage calculation can be improved, thereby helping to improve the accuracy and reliability of ambient light detection.
An active noise cancelling method and an active noise cancelling earpiece, capable of improving the noise cancelling effect of the active noise cancelling earpiece. The active noise cancelling earpiece comprises: an in-ear microphone, an out-ear microphone, a loudspeaker and a filter. The method comprises: when the loudspeaker is playing audio data, determining a first primary path transfer function according to first out-ear data collected by the out-ear microphone and first in-ear data collected by the in-ear microphone; according to the first in-ear data, the first out-ear data and the first primary path transfer function, determining audio data received by the in-ear microphone; according to the audio data played by the loudspeaker and the audio data received by the in-ear microphone, determining a first secondary path transfer function; and, according to the first primary path transfer function and/or the first secondary path transfer function, updating the working coefficient of the filter into a first working coefficient.
An ultrasonic fingerprint apparatus (2) and an electronic device (3). The ultrasonic fingerprint apparatus (2) is provided under a display screen (4) of the electronic device (3), so as to realize under-screen ultrasonic fingerprint recognition. The ultrasonic fingerprint apparatus (2) comprises an ultrasonic fingerprint chip (20) and a piezoelectric transducer (10) provided on the ultrasonic fingerprint chip. The piezoelectric transducer (10) comprises a piezoelectric layer (110), an upper electrode (120) located on the piezoelectric layer (110), and lower electrodes (130) located under the piezoelectric layer (110). The ultrasonic fingerprint chip (20) comprises a substrate 210, and a plurality of metal layers provided in a first region (201) of the substrate (210). The lower electrodes (130) are located above a second region (202) of the substrate (210). A top metal layer (TM) in the plurality of metal layers comprises N driving wires (230), wherein N=1 or N is a positive integer greater than 1. A passivation layer (220) is provided on the top metal layer (TM). A first window (221) corresponding to the N driving wires (230) is provided on the passivation layer (220). The upper electrode (120) extends from the upper surface of the piezoelectric layer (110) into the first window (221), so as to be separately connected to respective first connection regions (231) of the N driving wires (230) located in the first window (221).
An ultrasonic fingerprint apparatus (1) and an electronic device. The ultrasonic fingerprint apparatus (1) is arranged below a display screen of the electronic device, so as to implement under-display ultrasonic fingerprint recognition. The ultrasonic fingerprint apparatus (1) comprises an ultrasonic fingerprint chip (20) and a piezoelectric transducer (10) provided above the ultrasonic fingerprint chip (20); the piezoelectric transducer (10) comprises a piezoelectric layer (110), an upper electrode (120) located above the piezoelectric layer (110), and a lower electrode (130) located below the piezoelectric layer (110); the ultrasonic fingerprint chip (20) is a CMOS chip; the upper electrode (120) is led out to the surface of the CMOS chip, and is connected to one end of a lead (310) by means of a pad (241) on the surface of the COMS chip; and the other end of the lead (310) is connected to a circuit board (30) below the ultrasonic fingerprint chip (20), so as to implement electrical connection between the piezoelectric transducer (10) and the circuit board (30).
The present application provides an ultrasonic fingerprint apparatus and an electronic device. The packaging structure of the ultrasonic fingerprint apparatus is improved, and the fingerprint recognition performance of the ultrasonic fingerprint apparatus is ensured. The ultrasonic fingerprint apparatus comprises an ultrasonic fingerprint chip and a piezoelectric transducer above the ultrasonic fingerprint chip; the piezoelectric transducer is used for transmitting an ultrasonic signal to a finger above a display screen and receiving an ultrasonic fingerprint signal that is returned by the finger and carries fingerprint information, and the ultrasonic fingerprint chip is connected to a circuit board by means of a lead; a spacing layer is arranged between the ultrasonic fingerprint apparatus and the display screen, so that a space for accommodating the lead is formed between the display screen and the ultrasonic fingerprint chip; the spacing layer comprises a first matching layer, a second matching layer, and a third matching layer; the second matching layer is located between the first matching layer and the third matching layer; and the acoustic impedance of the second matching layer is different from the acoustic impedance of the first matching layer, and is different from the acoustic impedance of the third matching layer.
The present application provides an ultrasonic fingerprint recognition method, an ultrasonic fingerprint apparatus, and an electronic device, which can reduce the impact of temperatures on ultrasonic fingerprint recognition. The method is executed by the ultrasonic fingerprint apparatus. The ultrasonic fingerprint apparatus is arranged below a screen of the electronic device to realize under-display ultrasonic fingerprint recognition. The method comprises: acquiring correspondences between a plurality of temperatures and a plurality of parameter groups, wherein each parameter group comprises at least one of the following parameters: the frequency of an ultrasonic signal emitted to a finger, the number of times an ultrasonic fingerprint signal returned by the finger is acquired, and the delay of an acquisition window for the ultrasonic fingerprint signal relative to an emission moment for the ultrasonic signal; determining a target parameter group among the plurality of parameter groups on the basis of a first temperature and the correspondences; and performing fingerprint recognition at the first temperature according to parameters in the target parameter group.
An ultrasonic fingerprint apparatus (300) and an electronic device. A packaging structure for the ultrasonic fingerprint apparatus (300) is improved, thereby improving the fingerprint recognition performance of the ultrasonic fingerprint apparatus (300). The ultrasonic fingerprint apparatus (300) is arranged below a display screen (100) of the electronic device so as to achieve under-screen ultrasonic fingerprint recognition. The ultrasonic fingerprint apparatus (300) comprises an ultrasonic fingerprint chip (310) and a piezoelectric transducer (320) provided above the ultrasonic fingerprint chip (310), wherein the piezoelectric transducer (320) comprises a piezoelectric layer (321), an upper electrode (322) located above the piezoelectric layer (321), and a lower electrode (323) located below the piezoelectric layer (321). The ultrasonic fingerprint apparatus (300) is connected to a circuit board (600) by means of a lead (700), and two ends of the lead (700) are respectively welded to the ultrasonic fingerprint chip (310) and the circuit board (600). A spacer layer (400) is provided between the ultrasonic fingerprint apparatus (300) and the display screen (100), and the spacer layer (400) is used for increasing a space between the display screen (100) and the ultrasonic fingerprint chip (310) so as to accommodate the lead (700).
The present application relates to the field of packaging, and in particular relates to a QFN packaging structure, a radio frequency transceiving module structure and an electronic device. The QFN packaging structure comprises a substrate, an EPAD soldering area, a chip and QFN package pins. The EPAD soldering area is disposed on a surface of the substrate, and the chip is disposed on the surface of the EPAD soldering area; the QFN package pins surround the EPAD soldering area, and are disposed on the surface of the substrate; the QFN package pins are used to connect to a device outside the QFN packaging structure; the QFN package pins are connected to the chip; the chip is disposed at a non-central position on the surface of the EPAD soldering area; a radio frequency transmitting pin of the chip is connected to a radio frequency transmitting pin of the QFN package pins by means of at least three first bond wires. The radio frequency transmitting pin of the chip is connected to the radio frequency transmitting pin of the QFN package pins by means of at least three first bond wires, so that parasitic capacitance of the first bond wires and the EPAD soldering area are large, thereby enhancing a harmonic wave filtering effect, and reducing external radiation of harmonic waves.
H01L 23/50 - Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads or terminal arrangements for integrated circuit devices
11.
TOUCH-CONTROL DEVICE, TOUCH-CONTROL PANEL AND ELECTRONIC APPARATUS
A touch-control device (100), a touch-control panel and an electronic apparatus. The touch-control device (100) is configured to be arranged in a housing (10) of an electronic apparatus and is arranged below a cover plate (20) to form a touch-control panel; and the touch-control device (100) comprises: a circuit board assembly (110) connected to a lower surface of the cover plate (20), a press sensing element (111) being provided on the circuit board assembly (110); and an elastic connector (120), one end of the elastic connector (120) being connected to an edge of the circuit board assembly (110), and the other end of the elastic connector (120) being fixed to the housing (10). When a finger presses on the cover plate (20), the elastic connector (120) is configured to provide a movement stroke for the circuit board assembly (110) in the pressing direction, such that the press sensing element (111) on the circuit board assembly (110) senses the pressing of the finger on the cover plate (20). The device has a simple overall structure, and is relatively thin and easy to produce and mount, thus facilitating the promotion and use of the touch-control panel, in which the touch-control device is located, in electronic apparatuses.
Provided in the present application are a pressure touch-control plate and an electronic device. The pressure touch-control plate comprises a touch panel, a pressure sensor, a touch controller, a support plate and a haptic feedback component, wherein the support plate is arranged below the touch panel and comprises two flexible connection arms and a fastening region; nut fixing holes are provided in the fastening region; the support plate is fixedly connected to the touch panel by means of the two flexible connection arms, and is fixedly connected to a case of the electronic device by means of the nut fixing holes in the fastening region; the two flexible connection arms are connected to the fastening region and are respectively located on two sides of the haptic feedback component; and the distance from the position where the haptic feedback component is mounted to one long edge of the pressure touch-control plate is greater than the distance from the position where the haptic feedback component is mounted to the other long edge of the pressure touch-control plate.
Provided in the present application are an ultrasonic fingerprint identification method, an ultrasonic fingerprint apparatus and an electronic device. The method is executed by an ultrasonic fingerprint apparatus, and the ultrasonic fingerprint apparatus is arranged under a screen of an electronic device, so as to realize under-screen ultrasonic fingerprint identification. The method comprises: acquiring a function used for representing a corresponding relationship between temperatures and flytime, the flytime being time experienced by an ultrasonic signal from transmission to reception; when a finger presses a screen, acquiring a current temperature, and according to the current temperature and the function, determining target flytime corresponding to the current temperature; and transmitting an ultrasonic signal to the finger, and according to the target flytime, receiving an ultrasonic fingerprint signal which is returned back from the finger and carries fingerprint information of the finger. In this way, the effect of temperatures on ultrasonic fingerprint detection is reduced.
The present application provides an apparatus for converting a binary code into a thermometer code, and an electronic device, having good performance. The apparatus for converting a binary code into a thermometer code comprises: a decoding module, used for converting a high-bit binary code of high n/2 bits in an n-bit binary code into a high-bit code of 2n/2bits, and converting a low-bit binary code of low n/2 bits in the n-bit binary code into a low-bit code of 2n/2 bits, wherein the number of target code elements in the high-bit code is related to the value of the high-bit binary code, the number of target code elements in the low-bit code is related to the value of the low-bit binary code, the target code elements are 0 or 1, and n is a positive even number; and a combinatorial logic module, comprising multiple logic sub-modules, the multiple logic sub-modules having the same delay, and the multiple logic sub-modules being used for combining the code elements in the high-bit code and the code elements in the low-bit code to obtain a thermometer code corresponding to the n-bit binary code.
A capacitance measurement circuit, a touch control chip, and an electronic device. The capacitance measurement circuit (200) is used to measure a capacitance to be measured (Cx) between a sensing electrode (RX) and a driving electrode (TX) in a touch control display apparatus (110) of the electronic device. The capacitance measurement circuit (200) comprises: a differential amplification circuit (210), having a first input end (211), a second input end (212), and an output end (213). The first input end (211) is connected to the sensing electrode (RX), and is used to receive an initial measurement signal obtained by means of measurement by the sensing electrode (RX) on the basis of the capacitance to be measured (Cx). The second input end (212) is connected to a display cathode (ELVSS, 112) of the touch control display apparatus, and is used to receive a noise interference signal coupled from the display cathode (ELVSS, 112) to the sensing electrode (RX). The output end (213) is used to output an effective measurement signal on the basis of a difference signal between the initial measurement signal and the noise interference signal, the effective measurement signal being used to represent the capacitance to be measured (Cx) between the sensing electrode (RX) and the driving electrode (TX). Said technical solution can decrease the interference of a display layer (113) in a touch screen on capacitance measurement in a touch layer (111), and improve capacitance measurement accuracy and touch performance.
G01R 27/26 - Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants
G01R 31/00 - Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
Provided in the present application are a force touch panel and an electronic device. The force touch panel comprises a printed circuit board, a force sensor, a support plate, a touch controller and a tactile feedback component, wherein the support plate is arranged below the printed circuit board, and comprises a reinforcement region, a fastening region and two flexible connecting arms, two sides of the reinforcement region being connected to the fastening region by means of the two flexible connecting arms, the reinforcement region being fixedly connected to the printed circuit board, and the fastening region being configured to be fixedly connected to a housing of the electronic device; and the distances from a mounting position of the tactile feedback component to two long sides of the force touch panel are not equal in a first direction, wherein the first direction is the direction of short sides of the force touch panel.
The present application provides a touch apparatus, a touch panel, and an electronic device, being capable of reducing the structural complexity of the touch panel and the thickness of the touch panel. The touch apparatus is disposed below a cover plate to form a touch panel and comprises: a circuit board connected to the lower surface of the cover plate, the circuit board being provided with a pressing sensing element; a fixed support provided below the circuit board, through holes being formed in the fixed support; and threaded connecting members, one end of each threaded connecting member being connected to the circuit board by means of each through hole, the other end of the threaded connecting member being limited on the lower surface of the fixed support, and a gap being formed between the fixed support and the circuit board. When a finger presses the cover plate, the circuit board drives the threaded connecting members to move in the gap in a pressing direction, so that the pressing sensing element on the circuit board senses the pressing of the finger on the cover plate. According to the technical solution, the pressure detection function of the touch panel can be achieved only by using basic elements such as the circuit board and the fixed support, and the touch panel is simple in overall structure and small in thickness, and easy to produce and install.
An ultrasonic fingerprint detection apparatus and electronic equipment. The size, circuit complexity and costs of the ultrasonic fingerprint detection apparatus can be reduced. The ultrasonic fingerprint detection apparatus (200) comprises a signal generation circuit (210) and an ultrasonic fingerprint sensor chip (220); the signal generation circuit (210) consists of discrete devices and comprises a control circuit (211) and a resonance circuit (212), the control circuit (211) is used for receiving a control signal provided by the ultrasonic fingerprint sensor chip (220) and producing an excitation signal under the action of the control signal, and the resonance circuit (212) is used for receiving the excitation signal and forming a drive signal under the action of the excitation signal; and the ultrasonic fingerprint sensor chip (220) is used for receiving the drive signal and producing an ultrasonic signal for fingerprint detection under the action of the drive signal. By means of the technical solution, an ultrasonic fingerprint detection apparatus having a "single chip" architecture is provided, and the ultrasonic fingerprint detection apparatus has a simple circuit structure, a small circuit area, and low manufacturing costs.
The present application provides a card reader, a card end device, a card swiping method and a control unit. The card reader comprises a Bluetooth module, an ultra wide band (UWB) ranging module and a control unit, wherein the Bluetooth module is used for enabling the ultra wide band ranging module when a card end device, which supports an ultra wide band card swiping function, is scanned; the ultra wide band ranging module is used for measuring a first distance between same and the card end device; and the control unit is used for performing card-swiping communication with the card end device by means of the ultra wide band ranging module when it is determined, according to the first distance, that the card end device is in a proximity state and the first distance is less than or equal to a first threshold value. The present application provides a card reader which supports a UWB card swiping function, thereby improving the convenience and flexibility of card swiping by a user, and realizing non-inductive card swiping.
G06K 7/10 - Methods or arrangements for sensing record carriers by corpuscular radiation
G07C 9/20 - Individual registration on entry or exit involving the use of a pass
H04W 4/02 - Services making use of location information
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
H04W 52/28 - TPC being performed according to specific parameters using user profile, e.g. mobile speed, priority or network state, e.g. standby, idle or non-transmission
The present application provides a touchpad and an electronic device. The touchpad comprises: a touch panel; a tactile feedback part arranged below the touch panel and used for providing vibration feedback for a user; and a supporting plate arranged below the touch panel, wherein the supporting plate comprises a reinforcing area, a fastening area, and four flexible connecting arms, the reinforcing area is connected to the fastening area by means of the flexible connecting arms, the reinforcing area is fixedly connected to the touch panel, the fastening area is fixedly connected to a housing of an electronic device, gaps are formed between the flexible connecting arms and the touch panel, the four flexible connecting arms are symmetrically arranged at four corners of the supporting plate, and the four flexible connecting arms are used for balancing the vibration of the tactile feedback part. The touchpad and the electronic device of the present application are beneficial to solving the problem of inconsistent vibration generated after the tactile feedback part is biased.
Provided in the present application are a method and apparatus for downloading data, and a secure element (SE). By means of the present application, download processing time for data in an SE can be shortened, such that the production efficiency of SEs and the use experience of users are improved. The method for downloading data is applied to an SE, and comprises: receiving a first download command, wherein the first download command carries first data to be downloaded; writing said first data into a memory in an SE; and sending a first preset response within at least part of a time period during which said first data is written into the memory. In the technical solution, instead of sending a response according to an execution result only after the writing of first data to be downloaded into a memory is executed, an SE directly sends a first preset response during the process of writing said first data into the memory, such that the download processing time of the SE for a first download command and said first data carried therein is shortened, thereby improving the production efficiency of the SE and improving the use experience of a user regarding the SE.
Provided in the present application are an ultrasonic transceiving system and an electronic device. The ultrasonic transceiving system comprises a signal generation circuit and an ultrasonic sensor chip, wherein the signal generation circuit is composed of discrete devices and comprises a pulse generation circuit and a resonance circuit; the pulse generation circuit receives a control signal output by the ultrasonic sensor chip, and generates, according to the control signal, a first pulse voltage signal and a second pulse voltage signal, which are in opposite phases; the resonance circuit receives the first pulse voltage signal and the second pulse voltage signal, which are in opposite phases, and generates a driving signal under the action of the first pulse voltage signal and the second pulse voltage signal; and the ultrasonic sensor chip receives the driving signal and generates an ultrasonic signal according to the driving signal. When a driving signal is generated, a voltage value of the driving signal can be increased by means of a first pulse voltage signal and a second pulse voltage signal, which are in opposite phases, without the need for a boost operation, such that the problem of a complicated circuit caused by boosting and the problem of a poor driving effect caused by a low voltage value are overcome, and a circuit structure is simple, can be easily implemented and controlled, and has a good boost effect.
Provided in the present application are a signal generation circuit and an ultrasonic fingerprint recognition apparatus, which can alleviate the residual vibration of a generated sine wave signal. The signal generation circuit comprises: a resonant circuit, which is used for generating a sine wave signal; a control circuit, which is used for generating a pulse signal, wherein the pulse signal is used for driving the resonant circuit to generate the sine wave signal; and a brake circuit, which comprises a damping resistor, wherein the damping resistor is connected between the resonant circuit and the control circuit, and the damping resistor is used for absorbing, after the control circuit stops generating the pulse signal for a preset duration, excess signal energy which is generated by the resonant circuit.
The present application provides an ultrasonic fingerprint recognition apparatus and an electronic device, which have good performance. The ultrasonic fingerprint recognition apparatus is arranged below a display screen so as to achieve under-screen ultrasonic fingerprint recognition, and comprises: a reinforcing plate, one surface of the reinforcing plate being bonded to the display screen, and the other surface of the reinforcing plate being bonded to an ultrasonic detection chip and to an FPC; the side of the ultrasonic detection chip away from the reinforcing plate is provided with a piezoelectric material layer and a metal wiring layer; the piezoelectric material layer is used for transmitting an ultrasonic signal to a finger located above the display screen and for receiving an ultrasonic detection signal returned by the finger, and the ultrasonic detection signal is used for the ultrasonic detection chip to obtain fingerprint information of the finger; a bonding pad of the FPC is electrically connected to a bonding pad of the metal wiring layer via a bonding wire, thereby achieving interconnection between the ultrasonic detection chip and the FPC.
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
H01L 27/32 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including components using organic materials as the active part, or using a combination of organic materials with other materials as the active part with components specially adapted for light emission, e.g. flat-panel displays using organic light-emitting diodes
25.
ULTRASONIC FINGERPRINT RECOGNITION APPARATUS AND ELECTRONIC DEVICE
Provided in the present application are an ultrasonic fingerprint recognition apparatus and an electronic device, which have good performances. The ultrasonic fingerprint recognition apparatus is arranged under a display screen for the implementation of under-screen ultrasonic fingerprint recognition. The apparatus comprises: a substrate, which is bonded to a display screen, wherein the side of the substrate away from the display screen is provided with a recess; an ultrasonic detection chip, which is at least partially located in the recess, wherein one face of the ultrasonic detection chip is bonded to a bottom face of the recess, one side of the other face of the ultrasonic detection chip is provided with a piezoelectric material layer and a metal wiring layer, the piezoelectric material layer is used for transmitting an ultrasonic signal to a finger above the display screen and receiving an ultrasonic detection signal that is returned by the finger, and the ultrasonic detection signal is used by the ultrasonic detection chip to obtain fingerprint information of the finger; and an FPC, which is arranged on the side of the substrate away from the display screen, wherein a pad of the FPC and a pad of the metal wiring layer are laminated by means of an ACF, so as to achieve the mutual connection between the ultrasonic detection chip and the FPC.
The present application provides an ultrasonic fingerprint recognition apparatus and an electronic device, which have good performance. The ultrasonic fingerprint recognition apparatus is arranged under a display screen to realize under-screen ultrasonic fingerprint recognition, and the ultrasonic fingerprint recognition apparatus comprises: an ultrasonic detection chip, which is bonded to the display screen, wherein a piezoelectric material layer and a metal wiring layer are provided on the side of the ultrasonic detection chip that is away from the display screen, and the piezoelectric material layer is used for transmitting an ultrasonic signal to a finger over the display screen and receiving an ultrasonic detection signal which is returned by the finger, the ultrasonic detection signal being used by the ultrasonic detection chip for acquiring fingerprint information of the finger; and an FPC, which is arranged on the side of the ultrasonic detection chip that is away from the display screen, wherein a pad of the FPC and a pad of the metal wiring layer are laminated by means of an ACF, so as to realize the interconnection between the ultrasonic detection chip and the FPC.
A touchpad, comprising: a touch assembly and a supporting assembly. The touch assembly is arranged on the supporting assembly. The supporting assembly comprises: a main supporting member, which is arranged on an edge of a bottom face of the touch assembly; a fixing platform on which a boss is integrally formed; and a first elastic member and a second elastic member, which are symmetrically connected to the main supporting member along a plane where the main supporting member is located, wherein an opening portion for accommodating the fixing platform is formed between the first elastic member and the second elastic member; the fixing platform is connected between the first elastic member and the second elastic member; and the supporting assembly is of a sheet-shaped structure. A travel switch is arranged on the bottom face of the touch assembly. Insofar as the touch assembly is pressed, the boss is configured to come into contact with and trigger the travel switch. The touchpad provided in the present application can achieve full-region pressing.
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 1/16 - Constructional details or arrangements
28.
FINGERPRINT RECOGNITION METHOD AND APPARATUS, AND TERMINAL DEVICE
Embodiments of the present application provide a fingerprint recognition method and apparatus, and a terminal device. The fingerprint recognition method comprises: when a touch operation for a fingerprint recognition area on a display screen is monitored, collecting a fingerprint pre-collection graph, and determining whether to enter a recognition graph collection process according to the fingerprint pre-collection graph and a preset pre-collection end condition, wherein the pre-collection end condition comprises a pre-collection target brightness value; and once the recognition graph collection process is entered, collecting a fingerprint recognition graph, wherein the fingerprint recognition graph is used for unlocking the display screen. According to the technical solution, the quality of the fingerprint recognition graph can be ensured, thus increasing the unlocking success rate of fingerprint recognition.
Provided in the present application are a UWB communication method, and a chip and a device. The method can be applied to a ranging device, and comprises: a ranging device performing UWB ranging communication with a device to be subjected to ranging; after the ranging communication is finished, the ranging device generating a transaction wake-up message according to a ranging communication result, and sending, within a transaction wake-up time, the transaction wake-up message to the device to be subjected to ranging, so as to keep same in an awake state; and according to a transaction communication parameter comprised in the transaction wake-up message, the ranging device performing, by means of a UWB, transaction communication with the device to be subjected to ranging. In the technical solution, after a ranging stage, the ranging device can directly transmit, by means of the UWB, transaction data to the device to be subjected to ranging, such that transaction communication based on UWB technology is realized, and there is no need to make a transaction by means of other wireless communication technology, thereby greatly improving the efficiency and success rate of a transaction; in addition, a user does not need to cause the device to be subjected to ranging to physically approach the ranging device, such that rapid unconscious payment or card swiping can be realized, thereby greatly improving user experience.
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
The embodiments of the present application relate to the field of NFC. Provided are a card emulation method, and an NFC chip and an electronic device. The method comprises: selecting a set of hardware feature parameters from a plurality of sets of hardware feature parameters as a first hardware feature parameter; and if an NFC chip fails to communicate with a second electronic device after the chip is configured with the first hardware feature parameter, switching the first hardware feature parameter to a second hardware feature parameter, and communicating with the second electronic device again according to the second hardware feature parameter. The method provided in the embodiments of the present application facilitates the compatibility of an NFC device, which is working in a CE mode, with different card-reading devices, such that the stability and compatibility of the NFC device, which is working in the CE mode, can be improved.
Embodiments of the present application relate to the field of NFC, and provide a card searching method, an NFC chip, and an electronic device. The method comprises: selecting one hardware feature parameter combination from a plurality of hardware feature parameter combinations as a first hardware feature parameter combination; and if card searching fails after the NFC chip is configured with the first hardware feature parameter combination, switching the first hardware feature parameter combination into a second hardware feature parameter combination, and performing card searching again according to the second hardware feature parameter combination. According to the method provided by the embodiments of the present application, an NFC device working in a RW mode can be compatible with different NFC cards, such that the stability and compatibility of the NFC device working in the RW mode can be improved.
G06K 7/10 - Methods or arrangements for sensing record carriers by corpuscular radiation
G06K 19/07 - Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards with integrated circuit chips
The present application discloses a touch device. The touch device comprises: a circuit board, having an upper surface and a lower surface facing away from the upper surface; a cover plate, adhered to the upper surface; pressure-capacitance modules, provided on the lower surface; a vibration motor, provided on the lower surface; and a signal processor, electrically connected to the vibration motor and the pressure-capacitance modules.
G06F 3/044 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
G06F 3/045 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using resistive elements, e.g. a single continuous surface or two parallel surfaces put in contact
An infrared projection lens with an excellent projection performance is provided. The lens is comprised of a diaphragm, a first lens, a second lens, and a third lens, which are sequentially arranged from an imaging side to a light source side. The first lens is a lens having a positive focal power, and has a concave surface on a paraxial imaging side and a convex surface on a paraxial light source side, and at least one of the two surfaces of the first lens is aspheric. The second lens is a lens having a negative focal power, and has a concave surface on the paraxial imaging side and a convex surface on the paraxial light source side, and at least one of the two surfaces of the second lens is aspheric. The third lens is a lens having a positive focal power, and has a convex surface on the paraxial imaging side, and at least one of two surfaces of the third lens is aspheric. The lens satisfies 0.1<|Y/(f*TTL)|<0.4, where f is a focal length of the lens, Y is a maximum object height of the lens, and TTL is a distance between a diaphragm surface and an imaging surface of the lens.
G02B 9/14 - Optical objectives characterised both by the number of the components and their arrangements according to their sign, i.e. + or – having three components only arranged + – +
G02B 13/14 - Optical objectives specially designed for the purposes specified below for use with infrared or ultraviolet radiation
G03B 21/00 - Projectors or projection-type viewers; Accessories therefor
34.
ULTRASONIC FINGERPRINT RECOGNITION APPARATUS AND ELECTRONIC DEVICE
Embodiments of the present application provide an ultrasonic fingerprint recognition apparatus and an electronic device, capable of achieving better performance. The ultrasonic fingerprint recognition apparatus is arranged below a display screen of the electronic device so as to implement under-screen ultrasonic fingerprint recognition. The ultrasonic fingerprint recognition apparatus comprises: an ultrasonic fingerprint sensor chip, comprising a silicon substrate and a piezoelectric transducer arranged on the silicon substrate, the silicon substrate comprising a circuit unit and a first anisotropic conductive adhesive ACF bonding pad; a flexible circuit board, comprising a second ACF bonding pad, the second ACF bonding pad being connected to the first ACF bonding pad in a pressing mode so as to achieve electrical connection between the ultrasonic fingerprint sensor chip and the flexible circuit board; and a connecting dielectric layer, connected between the piezoelectric transducer of the ultrasonic fingerprint sensor chip and the display screen, the connecting dielectric layer being used for transmitting an ultrasonic signal generated by the piezoelectric transducer to the display screen and transmitting an ultrasonic fingerprint signal to the piezoelectric transducer.
Provided in the present application are a fingerprint recognition apparatus and an electronic device, which have better fingerprint recognition performance. The fingerprint recognition apparatus is arranged below a display screen or a cover plate of the electronic device. The fingerprint recognition apparatus comprises: an ultrasonic unit, which comprises a piezoelectric layer, a first electrode, which is located above the piezoelectric layer, and a second electrode, which is located below the piezoelectric layer, and the ultrasonic unit being used for sending an ultrasonic signal to a finger, and receiving an ultrasonic detection signal which is returned by the finger; and a substrate, which is located below the ultrasonic unit, the substrate comprising a circuit unit, the circuit unit being used for controlling the ultrasonic unit to generate the ultrasonic signal and processing the ultrasonic detection signal, and both the first electrode and the second electrode being electrically connected to the circuit unit, wherein the substrate is made of silicon, and the thickness of the substrate is between 50 microns and 160 microns.
Provided in the embodiments of the present application are an ultrasonic fingerprint recognition apparatus and an electronic device, which have better performance. The ultrasonic fingerprint recognition apparatus is arranged under a display screen of an electronic device, so as to realize under-screen ultrasonic fingerprint recognition. The ultrasonic fingerprint recognition apparatus comprises: an ultrasonic fingerprint sensor chip, which comprises a silicon substrate and a piezoelectric transducer arranged on the silicon substrate; a circuit board, which is arranged under the ultrasonic fingerprint sensor chip and comprises a circuit board pad, wherein the circuit board pad is connected to a chip pad in a circuit unit by means of a lead, such that the ultrasonic fingerprint sensor chip and a circuit board are electrically connected; and a connection spacer layer, which is connected between the piezoelectric transducer of the ultrasonic fingerprint sensor chip and a display screen, and provides for the lead an accommodation space under the display screen, wherein the connection spacer layer is used for transmitting to the display screen an ultrasonic signal generated by the piezoelectric transducer, and transmitting an ultrasonic fingerprint signal to the piezoelectric transducer.
Embodiments of the present application provide an ultrasonic fingerprint identification apparatus and an electronic device, capable of exhibiting superior performance. The ultrasonic fingerprint identification apparatus is disposed below a display screen of the electronic device, so as to realize under-screen ultrasonic fingerprint identification. The ultrasonic fingerprint identification apparatus comprises: an ultrasonic fingerprint sensor chip, comprising a silicon substrate and a piezoelectric transducer arranged on the silicon substrate, the silicon substrate comprising a circuit unit and a first anisotropic conductive film (ACF) bonding pad; a first flexible circuit board disposed between the ultrasonic fingerprint sensor chip and the display screen, and pressed and connected to the first ACF bonding pad of the ultrasonic fingerprint sensor chip by means of a second ACF bonding pad; a second flexible circuit board, disposed below the first flexible circuit board and pressed and connected to a third ACF bonding pad of the first flexible circuit board by means of a fourth ACF bonding pad; and a connecting dielectric layer, connected between the piezoelectric transducer of the ultrasonic fingerprint sensor chip and the display screen.
G09F 9/30 - Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
G06K 9/62 - Methods or arrangements for recognition using electronic means
38.
AMBIENT LIGHT INTENSITY MEASUREMENT METHOD AND ELECTRONIC DEVICE
Embodiments of the present application provide an electronic device and an ambient light intensity measurement method. The electronic device comprises a display screen and an ambient light sensor provided below the display screen. The measurement method comprises: sensing light intensity of incident light, wherein the incident light comprises ambient light penetrating through a display screen and leaked light from the display screen; obtaining estimated light intensity of the leaked light from the display screen according to display data of a target region of the display screen; performing calculation according to the estimated light intensity and a temperature compensation coefficient corresponding to the current temperature of the display screen to obtain the light intensity of the leaked light from the display screen; and according to the light intensity of the incident light and the light intensity of the leaked light from the display screen, obtaining the light intensity of the ambient light penetrating through the display screen. By adding temperature compensation to the calculation of the leaked light from the display screen, the obtained ambient light intensity is more accurate.
Provided in the present application are a pressure touch panel, a pressure touch panel assembly and an electronic device. The pressure touch panel comprises a printed circuit board, a pressure sensor, a pressure sensor support and a touch controller, wherein the printed circuit board is arranged on the pressure sensor support in a stacked manner, and a touch electrode layer is provided on the printed circuit board and is used for outputting a touch sensing signal when a finger touches the touch panel; the pressure sensor is used for deforming when the finger presses the touch control panel, and outputting a pressure sensing signal; the touch controller is used for receiving the touch sensing signal and the pressure sensing signal, and determining the touched position of the finger and the pressure applied by the finger; and the pressure sensor support comprises a reinforcing area, a non-reinforcing area and a flexible arm, the reinforcing area is fixedly connected to the printed circuit board, the non-reinforcing area is fixedly connected to an external shell, and the flexible arm is connected to the reinforcing area and the non-reinforcing area. The present application improves the strength and rigidity of a touch panel, and reduces the amount of recession of the touch control panel when being pressed.
The present application discloses a class-D amplifier, and a related chip and electronic device. The class-D amplifier is used for generating a differential output signal according to a differential input signal, and comprises a PWM modulator and an output stage. The PWM modulator comprises: a first comparator used for generating a first comparison result according to a positive terminal input signal and a triangular wave; a second comparator used for generating a second comparison result according to a negative terminal input signal and the triangular wave; an exclusive-OR gate used for generating a first control signal according to the first comparison result and the second comparison result; a first AND gate used for generating a positive terminal PWM output according to the first comparison result and the first control signal; and a second AND gate used for generating a negative terminal PWM output according to the second comparison result and the first control signal. The output stage is used for correspondingly generating a positive terminal output signal and a negative terminal output signal according to the positive terminal PWM output and the negative terminal PWM output.
A touch panel module, comprising: a moving portion, which is provided with a touch panel; a main supporting member; a travel switch arranged on a bottom face of the touch panel; a fixed portion, which is provided with a fixed platform, a contact being arranged on the surface of the fixed platform that is close to the moving portion; and a deformable portion, wherein when the touch panel is pressed, the deformable portion elastically deforms, so that the moving portion moves towards the fixed portion in a pressing direction, and the contact is in contact with and triggers the travel switch. According to the touch panel module provided in the present application, full-domain pressing can be realized.
Disclosed are a touch pad and an electronic device. The touch pad comprises: a touch assembly, configured to receive a press of a user, a travel switch being provided on the lower surface of the touch assembly; and a support assembly, comprising: a main support member, the main support member being of a frame type and having a first edge and a second edge which are opposite to each other; a first elastic member and a second elastic member, symmetrically provided along a plane where the main support member is located; and a fixed platform, the first elastic member being connected between the first edge of the main support member and the fixed platform, the second elastic member being connected between the second edge of the main support member and the fixed platform, and a contact being provided on the surface of the fixed platform facing the touch assembly. When the touch assembly is pressed, the touch assembly moves along the pressing direction, the first elastic member and the second elastic member elastically deform, the contact on the fixed platform is in contact with and triggers the travel switch on the touch assembly. The touch pad can achieve full-area pressing and may also provide a balanced force feedback for the user.
Provided is an ESD protection circuit (400) used for protecting a detection circuit and comprising a window selection switch. The window selection switch is provided with two parasitic diodes, the negative electrode of one parasitic diode being coupled to a power supply of a detection circuit, the positive electrode of the parasitic diode being coupled to the negative electrode of the other parasitic diode, and the positive electrode of the other parasitic diode being grounded. The ESD protection circuit (400) provided can effectively solve the problem that other devices need to be additionally introduced in an existing detection circuit. Also provided are a detection circuit and a related electronic apparatus.
H01L 27/02 - Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
H02H 9/00 - Emergency protective circuit arrangements for limiting excess current or voltage without disconnection
44.
NEAR-FIELD COMMUNICATION METHOD AND APPARATUS, AND CHIP
Provided in the present application are a near-field communication method and apparatus, and a chip. The method comprises: receiving a carrier which bears a target signal, wherein the target signal comprises M information bits, the carrier comprises a plurality of first time periods and a plurality of second time periods, and the carrier amplitude of each first time period is different from the carrier amplitude of each second time period; generating N identification bits according to the length of each first time period and of each second time period, wherein N/M = K, every K identification bits are used for identifying one of the information bits, and M, N and K are positive integers; and determining the M information bits according to the N identification bits. The method can improve the compatibility of an NFC device for signal demodulation, thereby improving the near-field communication performance of the NFC device.
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
The embodiments of the present application provide a trackpad and an electronic device. The trackpad is configured to be mounted on a housing of the electronic device, and is characterized by comprising a touch panel; a pressure sensor configured to convert the deformation of the pressure sensor into a first electrical signal when the touch panel bears a pressure, the first electrical signal being used to calculate a pressure detection result; a reinforcing plate fixed below the touch panel and formed with a cantilever beam structure with steps for supporting the pressure sensor; a force transfer part fixed below the cantilever beam structure and configured to move the cantilever beam structure upwards when the touch panel bears the pressure, so as to drive the pressure sensor to generate elastic deformation; and a tactile feedback part fixed below the touch panel and configured to provide vibration feedback for a user based on the pressure calculation result. On the basis of the present scheme, since the cantilever beam structure for supporting the pressure sensor is formed on the reinforcing plate, it is unnecessary to additionally provide an elastic bracket for supporting the pressure sensor, the number of components of the trackpad is reduced, the assembly process is simplified, and the cost is reduced.
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
An ambient light sensor (200) and an electronic device. The detection precision and detection performance of the ambient light sensor (200) can be improved. The ambient light sensor (200) comprises: a filtering unit array (210), which comprises a plurality of filtering units, wherein the plurality of filtering units comprise a color filtering unit (201), a white filtering unit (202) and a transparent filtering unit (203), the white filtering unit (202) being used for a visible light signal to transmit therethrough, and is used for blocking an infrared light signal, and the transparent filtering unit (203) being used for a visible light signal and an infrared light signal to transmit therethrough; and a pixel unit array (220), which comprises a plurality of pixel units, wherein the plurality of pixel units are used for receiving light signals of ambient light after same have passed through the plurality of filtering units, so as to perform ambient light detection. A detection result of the ambient light sensor (200) can be corrected or optimized according to the signal quantity of an infrared light signal, thereby improving the detection precision and detection performance of the ambient light sensor (200).
The invention relates to a method for efficient determination of deep coverage operation mode for PLMN selection in cellular loT access technology. The objective of the invention to present a method that is able to limit the deep coverage PLMN scans using NB- IoT access technology to carrier frequencies where noise-limited NB- IoT deployments can be found will be solved by - preparing a list of carrier frequencies by a UE according to a list of supported RE bands to search for PLMNs on; - selecting a carrier frequency out of the list of carrier frequencies and executing a PLMN scan at a normal coverage level by receiving and processing synchronization signals as well as reading and processing a SIB1 broadcasted by an eNodeB; if the PLMN scan fails, the normal coverage level is increased step-wise into a direction of deep coverage level, wherein the method further comprises the steps : - reusing time-contiguous RF samples received during the PLMN scan on the selected carrier frequency within a power detection procedure to detect whether the carrier frequency is occupied by another RE system, whereas - the power detection procedure comprises at least three threshold detection tasks each are configured to output a Boolean value indicating whether the carrier frequency is occupied by another RE system, and as soon as one of the at least three threshold detection tasks report that the selected carrier frequency is occupied by another RF system said selected carrier frequency is skipped from PLMN scan and is stored into an internal state memory of the UE.
A biometric information detection apparatus (300) and an electronic device (10). The biometric information detection apparatus (300) comprises: a light-transmissive cover plate (310); an ECG electrode (320) provided on a first surface (311) of the light-transmissive cover plate (310) facing the finger of a user, and used for receiving the pressing of the finger of the user and collecting an electrical signal of the finger of the user to form an ECG signal; and a PPG detection module (330) comprising: a light source (331) and a photodetector (332) and provided on the side of the light-transmissive cover plate (310) away from the finger of the user, wherein when the finger of the user presses the ECG electrode (320), the light source (331) is used for emitting an optical signal to the finger of the user, the optical signal being received by the photodetector (332) after being reflected or scattered by the finger of the user, and is used for processing a formed PPG signal. The PPG signal and the ECG signal are together processed to obtain biometric information of the user.
A61B 5/0205 - Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
A61B 5/318 - Heart-related electrical modalities, e.g. electrocardiography [ECG]
A61B 5/1455 - Measuring characteristics of blood in vivo, e.g. gas concentration, pH-value using optical sensors, e.g. spectral photometrical oximeters
A61B 5/28 - Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
49.
LASER RADAR TRANSMITTING APPARATUS, LASER RADAR APPARATUS, AND ELECTRONIC DEVICE
A laser radar transmitting apparatus (400), a laser radar apparatus (1200), and an electronic device (1400). The transmitting apparatus (400) comprises: a light source (401), which is used for transmitting N beams of light; a transmitting lens (402), which is used for collimating the N beams of light; a diffusion sheet (403), which has a first field of view in a first direction and is used for converting the N beams of light into M rows of linear light, which has a first divergence angle in the first direction, wherein each row of linear light is formed by the overlapping of K beams of linear light, the first field of view is equal to the first divergence angle, and N = M * K; and an adjusting apparatus (404), wherein the transmitting lens (402) and the diffusion sheet (403) are arranged on the adjusting apparatus (404), the optical axis of the light source (401) coincides with the optical axis of the transmitting lens (402), and the adjusting apparatus (404) adjusts the transmitting lens (402) to be in a first position, so that the N beams of light form a linear light signal on a surface of a target object, or adjusts the transmitting lens (402) to be in a second position, so that the N beams of light form a floodlight signal on the surface of the target object. The laser radar transmitting apparatus (400) has a simple structure, can emit two different kinds of light, and can perform efficient three-dimensional measurement and obstacle avoidance.
The invention relates to a method for detecting a signal absence by a user equipment (UE), which monitors a channel between the UE and a base station and on which the UE performs blind decoding. The objective of the invention to provide a method, by which a UE is able to terminate a downlink reception at an early stage, will be solved by a UE that performs the following steps: - step 1: receiving a first subframe repetition of a transmitted signal, storing the first subframe repetition in a repetition-combining buffer and initializing a previous metric Pm to zero; - step 2: receiving a next subframe repetition of the transmitted signal and calculating a current metric Cm according to Cm = ∑ rn(j)*rn-1(j), for j=0…k-1 by a cross- correlation, with r being soft-bits of a received soft-bit sequence Rn and k is a length of said sequence Rn; - step 3: comparing the current metric Cm with the previous metric Pm and if Pm > Cm, increasing a frequency of occurrence f by 1 and setting Pm = Cm-1; - repeating step 2 and step 3 until the occurrence f exceeds a predefined frequency of occurrence threshold Tf and early terminate a reception of the transmitted signal.
The invention relates to a method for efficiently selecting a coverage level on recovery from out of service in cellular systems performed by UE. The objective of the invention to present a method, which allows a UE after lack of coverage to get again service to a PLMN as fast as possible, will be solved by repeating a PLMN search within a retry PLMN search time interval, which is the sum of an EARFCN scan duration, a Band scan duration and a sleep time duration, whereas the UE selects between three scan modes comprising a last-registered EARFCN scan mode, a previous- registered EARFCN scan mode and a Band scan mode, the UE selects said scan modes in this order, whereas the UE starts with the last-registered EARFCN scan mode and selects an extreme coverage level (ECL2) for PLMN scanning within the EARFCN scan duration, if no PLMN is found, the UE enters the previous-registered EARFCN scan mode and first recalculates a remaining EARFCN scan duration of the EARFCN scan duration and selects randomly a coverage level and a registered EARFCN from a registered EARFCN list for PLMN scanning, if no PLMN is found within the remaining EARFCN scan duration, the UE enters the Band scan mode and calculates the Band scan duration and a coverage level budget for each coverage level and performs a Band scan if the coverage level budget is enough for at least one Band scan, if no PLMN is found, the UE increments the retry PLMN search time interval by a retry PLMN scan factor and passes through the procedure again until an accepted PLMN is found.
Embodiments of the present application disclose a method for extending a simulation function of an NFC card, an NFC extension device, and an NFC terminal. The method comprises: an NFC terminal obtaining standard static data of a physical card by means of an NFC extension device, wherein the NFC extension device and the physical card communicate on the basis of a first communication protocol, and the NFC terminal and the NFC extension device communicate on the basis of a second communication protocol; when the physical card is activated by means of the NFC terminal, an NFC card reader obtaining the standard static data of the physical card by means of the NFC terminal; the NFC card reader obtaining additional static data and/or dynamic data of the physical card by means of the NFC terminal and the NFC extension device; or the NFC card reader obtaining the additional static data of the physical card by means of the NFC terminal; and the NFC card reader managing the physical card by means of the standard static data and/or additional static data and /or dynamic data of the physical card.
Disclosed in the present application are a detection circuit and a related electronic apparatus. A detection circuit (102) is used for determining the amplitude of a received signal that is generated by a receiver (104) after same receives an input signal, and comprises an operational amplifier (106), which has a positive end, a negative end, and an output end; a capacitor unit (108), which is coupled between the output end and the negative end of the operational amplifier (106); a reset switch (112), which is arranged in parallel with the capacitor unit (108); a first switch (114), which is coupled between a reference voltage and an output end of the receiver (104); and a second switch (116), which is coupled between the output end of the receiver (104) and the negative end of the operational amplifier (106), wherein in a general stage, the received signal comprises a plurality of waves with a cycle T, and in a cycle T corresponding to first and second specific waves among the plurality of waves, the detection circuit (102) is set to be in a sampling mode for time T*R, and is set to be in a non-sampling mode for time T*(1-R).
The present application discloses an ultrasonic image sensor and a related electronic device. The ultrasonic image sensor is coupled to a sinusoidal pulse signal generating circuit. The ultrasonic image sensor and the sinusoidal pulse signal generating circuit are provided below a cover plate. The ultrasonic image sensor is used to sense a surface pattern of an object to be measured that makes contact with the cover plate from above the cover plate. The ultrasonic image sensor comprises: an upper electrode, which is coupled to the sinusoidal pulse signal generating circuit; a lower electrode array, which comprises a first lower electrode; a piezoelectric layer, which is provided between the upper electrode and the lower electrode array, wherein the piezoelectric layer is excited by means of a sinusoidal pulse signal generated by the sinusoidal pulse signal generating circuit so as to generate an ultrasonic wave, the ultrasonic wave is transmitted along the cover plate to the object to be measured and then a reflected echo is generated, and the reflected echo is transmitted back to the piezoelectric layer along the cover plate, so that the piezoelectric layer generates a receiving signal; and a detection circuit array.
A LIDAR transmitting apparatus, a LIDAR apparatus and an electronic device. The lidar transmitting apparatus (400) comprises: a light source (401) comprising a light-emitting array composed of M*N light-emitting units (4001), used to emit M*N beams of light, M and N being positive integers, the light-emitting units (4001) of each row of the light-emitting array being arranged along a first direction, the light-emitting units (4001) in each column of the light-emitting array being arranged along a second direction, and the first direction being perpendicular to the second direction; a collimating mirror (402), used to collimate the M*N beams of light; a diffusion sheet (403), the diffusion sheet (403) having a first field of view in the first direction, and being used to convert the M*N beams of light into M*N beams of linear light having a first divergence angle in the first direction, and project the linear light to a target object to form N linear light spots parallel to the first direction, each linear light spot being formed by M beams of linear light overlapping, and the first field of view being equal to the first divergence angle. A LIDAR apparatus (101) comprises the LIDAR transmitting apparatus (400), and an electronic device comprises the LIDAR apparatus (101). The LIDAR transmitting apparatus (400) enables LIDAR to have a simple structure and support measurement of three-dimensional depth information, while having a high measurement accuracy.
An ultrasonic fingerprint apparatus (2) and an electronic device (3). The ultrasonic fingerprint apparatus (2) is arranged under a display screen (1) of the electronic device (3), so as to realize under-screen ultrasonic fingerprint recognition. The ultrasonic fingerprint apparatus (2) comprises an ultrasonic fingerprint chip (20) and a piezoelectric transducer (10), which is arranged above the ultrasonic fingerprint chip (20), wherein the piezoelectric transducer (10) comprises an upper electrode (120), a lower electrode (130) and a piezoelectric layer (110), which is located between the upper electrode (120) and the lower electrode (130); the lower electrode (130) is arranged on a surface of the ultrasonic fingerprint chip (20); the upper electrode (120) is connected to a signal transmission circuit (31) under the ultrasonic fingerprint chip (20); the signal transmission circuit (31) is used for generating an excitation signal and loading same onto the upper electrode (120), such that the piezoelectric layer (110) is excited to transmit an ultrasonic signal to a finger above the display screen (1); the ultrasonic fingerprint chip (20) is a CMOS chip, and comprises a signal receiving circuit (21); the signal receiving circuit (21) is connected to the lower electrode (130), so as to receive an ultrasonic detection signal, which is generated between the upper electrode (120) and the lower electrode (130) when an ultrasonic signal that is returned by the finger acts on the piezoelectric layer (110); and the ultrasonic detection signal is used for acquiring a fingerprint image of the finger.
A sine wave pulse signal generating circuit (100) and a related electronic apparatus. The sine wave pulse signal generating circuit (100) comprises: an inductor (102), a first end being coupled to a first reference voltage; a capacitor (104), a first end being coupled to a second end of the inductor (102), a second end of the capacitor (104) being coupled to a second reference voltage, and the first reference voltage being higher than the second reference voltage; a first diode (108), the anode being coupled to the first end of the capacitor (104); a first switch (106), which is coupled between the cathode of the first diode (108) and the second reference voltage. The sine wave pulse signal generating circuit (100) generates a sine wave pulse signal at the second end of the inductor (102), the sine wave pulse signal has a pulse period, and the pulse period comprises a first time interval and a second time interval; in the first time interval, the voltage of the sine wave pulse signal is constant; and in the second time interval, the voltage of the sine wave pulse signal is not constant and is a sine wave.
An optical encoder (200) and an electronic device (1200). The optical encoder (200) comprises: a rotating component (202); an optical transmitter (201) for transmitting an incident light signal (2001) to the rotating component (202), the rotating component (202) having a rotation axis (204), which passes through the geometric center thereof, and an optical detection region (2021), which is arranged around the surface of the rotating component (202) facing outward, with an included angle (a) existing between a tangent plane of the optical detection region (2021) and the rotation axis (204), the included angle (a) being an acute angle; and an optical receiver (203) for receiving a detected light signal (2002) after the incident light signal (2001) passes through the optical detection region (2021), and then generating an electrical signal according to the detected light signal (2002) so as to determine motion information of the rotating component (202). The included angle (a), which is an acute angle, exists between the tangent plane of the optical detection region (2021) on the surface of the rotating component (202) and the rotation axis (204), so that the part of a light beam emitted from the optical transmitter (201) having the greatest energy is reflected by the optical detection region (2021) and then received by the optical receiver (203), which prevents the waste of optical signals, improves the light utilization rate of the optical encoder (200), and reduces the power consumption of the optical encoder (200).
Embodiments of the present application provide a fingerprint recognition device and a laptop computer, the fingerprint recognition device being used for being provided below a glass plate of an area in which a pressing plate and/or a touch strip of the laptop computer are located, and the fingerprint recognition device comprising: a light source, which is used for emitting a light signal to the finger of a user pressing a first area; a fingerprint chip, which is provided below the first area; a circuit board, which is provided on a lower surface of the fingerprint chip and electrically connected to the fingerprint chip; and support pieces, which are provided around the fingerprint chip and are connected to an upper surface of the circuit board, the support pieces being used for mounting the fingerprint chip and the circuit board below the glass plate. The overall thickness of the circuit board, the fingerprint chip and the support pieces is not greater than 0.4 mm, an optical signal emitted by the light source penetrates the glass plate to irradiate to the finger of the user, and the fingerprint chip is used for receiving a fingerprint optical signal which is returned from the finger of the user and which then penetrates the glass plate so as to carry out fingerprint identification. According to the technical solution of the embodiments of the present application, the safety performance of a laptop computer may be improved.
Provided in the embodiments of the present invention are a depth image collection apparatus, a depth image fusion method and a terminal device. The depth image collection apparatus comprises a transmission module, a receiving module and a processing unit. The transmission module is used for transmitting a speckle array to a target object, wherein the speckle array comprises P speckles that are spaced apart from each other. The receiving module comprises an image sensor. The processing unit is used for receiving a pixel signal and generating a sparse depth image according to the pixel signal, wherein the number P of speckles indicates the resolution of the sparse depth image, and the processing unit is further used for aligning an RGB with the resolution of a*b with the sparse depth image, and fusing, by using a pre-trained image fusion model, the sparse depth image and the RGB image that have been aligned, so as to obtain a dense depth image with the resolution of a*b. By means of the solution of the embodiments of the present invention, the cost of a terminal device is reduced, a dense depth image having higher precision is also obtained, and usage scenarios of the terminal device are enriched.
A body temperature measurement earbud (10) and a body temperature measurement method, which belong to the technical field of temperature measurement. An earbud (10) comprises an earbud housing (11) and a temperature sensing module (12), which is accommodated in the earbud housing (11). The earbud housing (11) forms a cavity of the earbud (10) by means of enclosure. The cavity of the earbud (10) extends outwards to form a sound conduction tube (14) in communication with the outside. The sound conduction tube (14) is located on the side, close to the eardrum, of the cavity of the earbud (10). The temperature sensing module (12) comprises at least two temperature measurement modules (121, 122). The at least two temperature measurement modules (121, 122) are successively fixedly arranged in the sound conduction tube (14) in the direction of the sound conduction tube (14), wherein the body temperature of an earbud (10) wearer is obtained according to the difference between temperatures measured by the at least two temperature measurement modules (121, 122). The temperature sensing module (12) and the sound conduction tube (14) of the earbud (10) are combined, such that the design of a sound cavity is not affected; and the ear canal is used as a position for temperature measurement, thereby improving the accuracy of temperature measurement. The body temperature measurement method comprises: obtaining at least two temperature measurement values by means of at least two temperature measurement modules (S100); and obtaining the body temperature of an earbud wearer according to the difference between the at least two temperature measurement values (S200).
An NFC tag identification method and apparatus, an NFC device and a storage medium. The tag identification method comprises: when identification of a previous tag in external tags is completed according to an NFC tag anti-collision mechanism, obtaining a current tag collision state of the external tags; if the current tag conflict state indicates that no tag conflict exists in the external tags is detected at present, sending a tag silence request to the identified previous tag, the tag silence request being used for enabling the identified tag to enter a silence state; sending a tag discovery request, the tag discovery request being used for discovering tags which are not in the silent state in the external tags; and if a response of a current tag to the tag discovery request is received, identifying the current tag according to the NFC tag anti-collision mechanism. According to the method, the identification accuracy and reliability of the external tags are improved.
An emission device (300) for depth measurement, and an electronic apparatus (700). The emission device (300) comprises: a light source (301) comprising N light-emitting units, the N light-emitting units being spaced apart from one another and configured to emit N light beams; a collimating lens (302) configured to collimate the N light beams; an adjustment device (303), wherein the collimating lens (302) is arranged on the adjustment device (303), the optical axis of the light source (301) is parallel to an optical axis of the collimating lens (302), and the adjustment device (303) is configured to adjust the position of the collimating lens (302) on the optical axis of the collimating lens (302); and a driving device (304) configured to drive the adjustment device (303) to adjust the position of the collimating lens (302) to a first position, such that the N light beams form a spot optical signal on the surface of a target object, and to drive the adjustment device (303) to adjust the collimating lens (302) to a second position, such that the N light beams form a flood optical signal on the surface of the target object. The emission device (300) for depth measurement can emit two different kinds of light by means of one optical path system, and has the advantages of both Spot TOF and Flood TOF, thereby simplifying an optical path of a depth measurement device, and improving the working efficiency of the depth measurement device.
A noise cancellation method for an audio signal, an audio signal processing apparatus, and an electronic device. The method comprises: if a current noise cancellation coefficient needs to be updated into a new noise cancellation coefficient, a digital signal processor calculates the new noise cancellation coefficient and writes same into an idle storage module among at least two storage modules (301), and sends an update request for updating the noise cancellation coefficient to an active noise cancellation module, position information carried by the update request being used for indicating the position where the new noise cancellation coefficient is written into the storage module (302); and the active noise cancellation module reads a new noise cancellation coefficient on the basis of the position information carried by the update request (303), and performs noise cancellation processing according to the new noise cancellation coefficient after the current noise cancellation processing period is ended (304). Coefficient updating is performed under the condition that active noise cancellation is not closed, the integrity of coefficient updating is improved, noise caused by uneven coefficient updating is avoided, a better active noise cancellation effect is achieved, and the auditory feeling of a user is improved.
G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
H04R 3/04 - Circuits for transducers for correcting frequency response
A touchpad (200), comprising: a touch panel (201) used for sensing finger touches and outputting a touch signal; an elastic support (202), the elastic support (202) being located below the touch panel (201); a pressure sensor used for generating deformation according to the magnitude of the pressure of a finger pressing the touch panel (201), and outputting a pressure signal; a touch controller used for receiving the touch signal and the pressure signal, wherein if the pressure signal reaches a first threshold, the touch controller outputs a vibration command; an electromagnetic motor driver used for receiving the vibration command and outputting an alternating current signal according to the vibration command; and an actuating component (203), comprising a first assembly and a second assembly, wherein the first assembly is fixedly connected to the touch panel (201), the second assembly is fixedly connected to the elastic support (202), a gap is provided between the first assembly and the second assembly, the gap is bigger than the displacement generated when the first assembly vibrates, and an actuator is used for receiving the alternating current signal, and providing a user with vibration feedback. The touchpad (200) has high vibration intensity and a fast response speed.
The present application relates to the technical field of electronics, and provides a power amplifier, a chip and a terminal device. The power amplifier comprises a first output pin, a first power amplifying circuit and a second power amplifying circuit; the first power amplifying circuit and the second power amplifying circuit are separately connected to the first output pin; control terminals of the first power amplifying circuit and the second power amplifying circuit are separately connected to a logic control module; a first voltage outputted by the first power amplifying circuit is smaller than a second voltage outputted by the second power amplifying circuit; and the first power amplifying circuit and the second power amplifying circuit alternately output the first voltage and the second voltage to the first output pin under the control of the logic control module, so that the first output pin outputs a first step wave for driving an antenna, the first step wave comprising two levels of voltages the amplitudes of which are the first voltage and the second voltage. The present solution may save an electromagnetic compatibility filter in an NFC radio frequency circuit, thereby reducing the cost of the NFC radio frequency circuit.
The present application provides a light emitting module, a camera module, and an electronic device. The light emitting module comprises a light source and a light beam splitter; the light source is used for emitting a light beam forming basic speckle patterns; the light beam splitter is used for splitting the light beam emitted by the light source to form a light beam of a global speckle pattern; the global speckle pattern comprises a plurality of basic speckle patterns distributed in an array; the plurality of basic speckle patterns of the global speckle pattern comprise at least one central position basic speckle pattern and at least one primary peripheral basic speckle pattern; the central position basic speckle pattern is located in the central area of the global speckle pattern; the at least one primary peripheral basic speckle pattern comprises a plurality of basic speckle patterns located on the periphery of the central position basic speckle pattern; and the light beam energy of the central position basic speckle pattern is lower than the light beam energy of the at least one primary peripheral basic speckle pattern. Therefore, the imaging precision is improved and the accuracy of depth information is improved.
A method and apparatus for collecting a fingerprint image, and an electronic device. The method comprises: controlling a fingerprint sensor to collect at least one image frame on the basis of each candidate exposure time in N candidate exposure times; determining, according to at least one image frame collected at each exposure time, N values of feature parameters corresponding to the N candidate exposure times, the feature parameters being used for representing the influence degree of a refresh cycle of a display screen on a fingerprint image collected by the fingerprint sensor (S420); determining candidate exposure time corresponding to a first value representing the minimum influence degree among the N values as target exposure time (S430); and controlling the fingerprint sensor to collect the fingerprint image on the basis of the target exposure time (S440). The method, the apparatus, and the electronic device can reduce the influence of screen driving and screen refreshing on fingerprint detection, thereby improving the performance of fingerprint detection.
A clock calibration method and apparatus, and an electronic device, which are used to calibrate a clock of a fingerprint chip, which can improve the accuracy of the clock of the fingerprint chip, thereby improving the performance of the fingerprint chip. The clock calibration method, which is used to calibrate the clock of the fingerprint chip provided in the electronic device, comprises: sending a configuration command to a fingerprint chip, so that the fingerprint chip maps a current clock of the fingerprint chip to a target pin of the fingerprint chip; detecting the target pin so as to obtain the current clock of the fingerprint chip; determining a calibration value according to a target clock and the current clock of the fingerprint chip; and sending the calibration value to a calibration register of the fingerprint chip, wherein the calibration value is used to adjust the current clock of the fingerprint chip. By means of mapping the current clock of the fingerprint chip to the target pin, the current clock of the fingerprint chip at the target pin can be detected in real time, and the current clock of the fingerprint chip is adjusted in real time according to a target clock which is actually required so as to improve the accuracy of the clock of the fingerprint chip.
The present application discloses a near field communication transmission circuit, a related chip, and an electronic device, comprising a waveform modulation unit and an output switch unit. The waveform modulation unit generates a first pulse width modulation signal according to the sine wave and the carrier wave, and generates a first square wave signal according to the sine wave. The output switch unit comprises a first switch and a second switch. The first switch is coupled to a first voltage and is configured to correspondingly output the first voltage on the basis of the control of the first pulse width modulation signal. The second switch is coupled to a second voltage and is configured to correspondingly output the second voltage on the basis of the control of the first square wave signal. In the first half cycle of the sine wave, the waveform modulation unit modulates the sine wave and the carrier wave to generate the first pulse width modulation signal, and the first square wave signal is maintained at a low potential. In the second half cycle of the sine wave, the first pulse width modulation signal is maintained at a low potential, and the first square wave signal is maintained at a high potential.
A card swiping method, a card controller, an electronic device and a storage medium, which relate to the technical field of near-field communications. The card swiping method comprises: when the entry into a radio frequency field of a card reader is detected, entering a card selection step, wherein the card selection step comprises: selecting a target card application program from among N built-in card application programs; calling the target card application program, and interacting with the card reader by using the target card application program; and during an interaction process, when it is detected that the radio frequency field of the card reader is reset, disabling the target card application program, and repeating the card selection step until any one of the N card application programs successfully interacts with the card reader, or the N card application programs have all been selected but none of them interacts successfully in the present card selection step. By means of the method, adaptive card swiping can be realized without transforming and reconstructing a card reader end, thereby reducing the costs; moreover, there is no need to perform a manual card switching operation on a device interface for setting a card application program, thereby improving the convenience of card swiping.
A biometric collection method and chip, a terminal and a computer-readable storage medium. The biometric collection method comprises: acquiring a configuration parameter (201), wherein the configuration parameter comprises a first exposure duration, a first area, and a target photosensitive value, the first area being a local area in a photosensitive area of a biometric collection chip; exposing the first area according to the first exposure duration, and acquiring a photosensitive value of the first area (202); according to the photosensitive value of the first area and the first exposure duration, determining a second exposure duration required for collecting the target photosensitive value in the photosensitive area (203); and according to the second exposure duration, collecting a biometric image (204), such that the accuracy of the collected biometric image can be improved, thereby increasing the accuracy rate of subsequent biometric recognition or biometric registration.
A transmitting apparatus (300, 600) for time-of-flight (TOF) depth detection and an electronic device (1400, 1500). The transmitting apparatus (300, 600) is used to project a speckle array composed of N speckles to a target object at a target field of view, wherein N is a positive integer. The transmitting apparatus (300, 600) comprises: a light source (301, 601) which has N light-emitting units used for emitting N beams of point light; and a projection lens (302, 602), wherein the field of view of the projection lens (302, 602) is equal to the target field of view, the projection lens (302, 602) is used for collimating the N beams of point light and projecting the N beams of point light to the target object at the target field of view so as to generate a speckle array consisting of N speckles on the target object, and the power of each of the N speckles is equal to the power of the light-emitting units which generate each speckle. Only two optical elements can be used to project speckles that originally required the use of three optical elements, which effectively reduces the cost of the apparatus while ensuring the speckle projection effect of the transmitting apparatus (300, 600) for TOF depth detection.
Provided in the present application are a fingerprint recognition method and apparatus, and an electronic device and a storage medium. During a single press, first fingerprint data corresponding to a special-shaped light spot and second fingerprint data corresponding to a normal light spot are respectively obtained; and bright area data and dark area data corresponding to the first fingerprint data, and fingerprint feature information related to the second fingerprint data are then obtained. The bright area data and dark area data corresponding to the first fingerprint data can be used to represent the difference between a real finger and a 2.5D false fingerprint, i.e. the difference between the amount of transmitted light generated by a real finger and the amount of transmitted light generated by a 2.5D false fingerprint; and therefore, the authenticity of a fingerprint to be subjected to detection can be effectively determined on the basis of fingerprint feature information, thereby improving the accuracy of a fingerprint recognition result for a 2.5D false fingerprint.
An emitting apparatus (300) for TOF detection and an electronic device (1400). The emitting apparatus (300) is used for projecting N speckles to a target object at a target field angle, and comprises: a light source having a light emitting array composed of N light emitting units, the N light emitting units being used for emitting N beams of spot light, the light emitting array comprising a first area and a second area, the geometric center of the light emitting array being located in the first area, the second area surrounding the first area, M light emitting units among the N light emitting units being located in the first area, at least some of the other N-M light emitting units being located in the second area, the light emitting units in the first area and the light emitting units in the second area simultaneously emitting spot light by using first power and second power, respectively, and the first power being smaller than the second power; and a projection lens (302) having a projection lens (302) field angle and used for collimating the N beams of spot light and projecting the N beams of spot light to the target object so as to generate N speckles on the target object, the target field angle being equal to the field angle of a perspective lens. The vignetting problem of a depth image is effectively improved.
A TOF camera module (100) and an electronic device, which can effectively alleviate, at a low cost, an optical axis offset between a transmitting module and a receiving module. The TOF camera module (100) comprises: a circuit board (110), which comprises an upper surface and a lower surface, the upper surface at least comprising a first area and a second area, which are not overlapped with each other; a transmitter chip (120), which is arranged in the first area by means of a ceramic substrate (180), the area of a projection of the ceramic substrate (180) on the upper surface of the circuit board (110) being smaller than the area of the upper surface; a first lens holder (140), which is fixed onto the ceramic substrate (180), the transmitter chip (120) being accommodated in the first lens holder (140); an optical device, which is fixed in the first lens holder (140) and is arranged above the transmitter chip (120); an image sensor chip (130) arranged in the second area; a second lens holder (150), which is fixed onto the upper surface of the circuit board (110), the image sensor chip (130) being accommodated in the second lens holder (150); and an imaging lens (170), which is fixed in the second lens holder (150) and is arranged above the image sensor chip (130).
Provided in the embodiments of the present application are a microphone signal processing circuit and an electronic device, relating to the technical field of microphone control, and being capable of reducing the background noise of an electronic device. The microphone signal processing circuit comprises: n microphone input branches, wherein n > 1 and each microphone input branch comprises: a microphone signal input end; a down-sampling circuit used for down-sampling and electrically connected to the microphone signal input end; and a background noise controller electrically connected to an output end of the down-sampling circuit to acquire an output signal of the down-sampling circuit, the background noise controller being used for adjusting the phase of the output signal of the down-sampling circuit and making the phases of the output signals of each background noise controller in the n microphone input branches consistent; the microphone signal processing circuit also comprises: a superimposition device for superimposing the output signals of the background noise controllers in each microphone input branch, and an up-sampling circuit for up-sampling the signal outputted by the superimposition device.
The present application relates to the field of communications, and in particular to a data transmission method for an NB-IOT end, and an NB-IOT chip, an NB-IOT device, an NB-IOT communication system and a computer-readable storage medium. The method comprises: when an NRSRP measured by an NB-IOT end is greater than or equal to a first NRSRP threshold value and an SINR measured by the NB-IOT end is less than or equal to a first SINR threshold value, the NB-IOT end sending, under the configuration of an ECL being 1 or 2, a random access preamble to a base station, such that a UE establishes a connection with the base station. The configuration of an ECL is determined on the basis of a measured NRSRP and a measured SINR, such that the problem of data transmission being time-consuming is ameliorated, thereby improving user experience.
H04W 4/80 - Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication
80.
CAPACITANCE SENSOR AND MANUFACTURING METHOD THEREFOR
A capacitance sensor, comprising a plurality of pixel units arranged side by side, wherein each pixel unit comprises a silicon substrate (4) and a structural layer (5); the structural layer (5) is arranged on an upper surface of the silicon substrate (4) and the structural layer (5) comprises a top metal layer (33) and a dielectric layer; the dielectric layer is arranged below the top metal layer (33); and the top metal layer (33) is provided with one or more through holes (35), the through holes (35) being circular. By arranging the circular through holes (35) in the top metal layer (33) of the pixel units, the problem of chip failure caused by a humid and hot environment is improved. Further provided is a manufacturing method for the capacitance sensor.
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
H01L 21/56 - Encapsulations, e.g. encapsulating layers, coatings
G06K 9/00 - Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
Provided in the present application are a biometric detection apparatus and a wearable device. The biometric detection apparatus comprises: one or more light-emitting devices, wherein the light emitting devices are used for generating light beams; a light homogenization layer, wherein the light homogenization layer is disposed above the light-emitting devices, such that the light beams of the light-emitting devices diverge into human skin after passing through the light homogenization layer, and propagate within the human skin, the haze of the light homogenization layer is greater than or equal to 70%, and the transmittance of light emitted by the corresponding light-emitting devices is greater than or equal to 40%; and one or more photodiodes, wherein the photodiodes are used for receiving the light beams which have propagated within the human skin, and converting received optical signals of the light beams into heart rate and/or blood oxygen measurement signals. By means of the biometric detection apparatus and the wearable device of the present application, light-emitting devices can be prevented from being seen by the human eyes, thereby improving the appearance of products.
A code-writing circuit, an active pen, and an electronic device, the code-writing circuit being used in an active pen. The code-writing circuit (200) comprises: a power supply component (210), at least one energy storage capacitor (220), a switch component (230), and a code-writing electrode (240). In a code-writing period: the switch component (230) is used to control connections between the power supply component (210), the at least one energy storage capacitor (220), and the code-writing electrode (240), so that the code-writing electrode (240) outputs a first voltage, at least one second voltage, and a third voltage, the first voltage and the third voltage being respectively the maximum voltage and the minimum voltage outputted by the code-writing electrode (240), the difference between the first voltage and the third voltage being a code-writing voltage of the active pen, and the sum of an energy storage voltage of the at least one energy storage capacitor (220) being less than the first voltage. The code-writing circuit, the active pen, and the electronic device can reduce the power consumption of a tip electrode of the active pen.
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
83.
FINGERPRINT RECOGNITION METHOD AND APPARATUS, AND ELECTRONIC DEVICE
A fingerprint recognition method. The method comprises: according to a sampling parameter, collecting a first fingerprint image; according to the first fingerprint image and a prestored reference image, determining a collection environment of the first fingerprint image, wherein the reference image is a fingerprint image that is acquired in a reference light environment; according to a processing parameter corresponding to the collection environment, processing the first fingerprint image; and according to the processed first fingerprint image, performing fingerprint recognition. In the present application, a reference image is prestored, such that only one fingerprint image needs to be collected to be able to determine a collection environment of a fingerprint, thereby saving the time of collecting a fingerprint image and determining a collection environment, and effectively improving the fingerprint recognition efficiency.
The present application discloses an antenna network, comprising: an electromagnetic compatibility filter, a matching circuit, and an antenna. The present application further discloses an antenna network, comprising: an electromagnetic compatibility filter, a quality factor reduction circuit, and an antenna. The present application further discloses an electronic device, comprising: a chip provided with a positive output end and a negative output end; and the antenna network, wherein the positive output end of the chip is coupled with a positive input end of the electromagnetic compatibility filter of the antenna network, and the negative output end of the chip is coupled with a negative input end of the electromagnetic compatibility filter of the antenna network.
Disclosed in the present application is a method for estimating an equivalent lumped parameter of an antenna. An antenna operates at a working angular frequency ω; the antenna comprises a positive input end and a negative input end; an equivalent model of the antenna comprises: a capacitor which is equivalently coupled between the positive input end of the antenna and the negative input end of the antenna, and a resistor and an inductor which are equivalently connected between the positive input end of the antenna and the negative input end of the antenna in series, wherein an equivalent lumped parameter of the antenna comprises a capacitance value of the capacitor, a resistance value of the resistor, and an inductance value of the inductor. The method comprises: obtaining the impedance value of the antenna from the positive input end and the negative input end of the antenna to the antenna at the working angular frequency; and obtaining the resistance value according to the impedance value.
A capacitive fingerprint recognition method, a capacitive fingerprint recognition apparatus, and an electronic device. The method is applied to an electronic device having a capacitive fingerprint recognition apparatus. The capacitive fingerprint recognition apparatus is disposed on a special-shaped surface of the electronic device, and the capacitive fingerprint recognition apparatus comprises a pixel electrode array. The method comprises: acquiring the number N(i) of voltage cycles to be applied to the i-th column of pixel electrodes; and according to the number N(i) of voltage cycles to be applied, applying the voltage cycles to the i-th column of pixel electrodes, so as to obtain an output voltage, wherein the output voltage corresponds to capacitance, and the output voltage is used for fingerprint recognition. By means of the fingerprint recognition method of the present application, the number of voltage cycles to be applied is allocated to pixel electrodes by column, so as to increase the signal amount corresponding to pixel electrodes at a great distance from an arc-shaped surface; and a column average output voltage of pixel electrodes is controlled to be at a similar level, so as to facilitate algorithm processing. In addition, the risk of upper and lower saturation of data is reduced, thereby improving the performance of fingerprint recognition.
A data writing method, comprising: determining, according to an amount of single-frame write data of a pseudo static random access memory (PSRAM), at least one data unit of data to be written to the PSRAM and instruction address information corresponding to the data unit, wherein the amount of single-frame write data is an amount of data written within a time of a low level of a chip select signal corresponding to the PSRAM; generating at least one block according to the instruction address information corresponding to the data unit and the data unit, wherein the at least one block forms a blockchain table, the block comprises pointer information, the instruction address information corresponding to the data unit and/or the data unit, and the pointer information is used for indicating a next block to be sent of the block during the transmission of the blockchain table; and sending the instruction address information corresponding to the data unit and the data unit to the PSRAM by means of a DMA controller on the basis of the blockchain table. The method can effectively improve PSRAM access efficiency, thereby implementing high-speed writing to a PSRAM.
G06F 13/28 - Handling requests for interconnection or transfer for access to input/output bus using burst mode transfer, e.g. direct memory access, cycle steal
88.
PRESSURE DETECTION DEVICE, ACTIVE PEN CHIP, AND ACTIVE PEN
A pressure detection device, an active pen chip, and an active pen. The device comprises: a variable capacitor, which comprises a first plate and a second plate, the first plate being connected to a tip of the active pen and being movable in response to an external pressure received by the tip of the active pen to cause a capacitance value of the variable capacitor to vary in response to the external pressure; a transformer, which comprises a first coil and a second coil, the first coil being connected to the variable capacitor, and the second coil being connected to a control module; and the control module, configured to input an excitation signal to the second coil, and receive an output signal of the second coil to obtain the external pressure. According to the present application, an external pressure on a tip of an active pen is detected by means of the resonant frequency of a resonant circuit, and the sensitivity and detection precision of the pressure detection device are improved.
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
89.
FINGERPRINT RECOGNITION APPARATUS AND ELECTRONIC DEVICE
The embodiments of the present application disclose a fingerprint recognition apparatus and an electronic device, which can simplify an optical path stacked structure and a processing process, thereby improving the efficiency of mass production. The fingerprint recognition apparatus comprises: a fingerprint sensor chip; an infrared cut off filter layer, which is disposed above the fingerprint sensor chip; a light-blocking layer, which is provided on the upper surface of the infrared cut-off filter layer by means of coating, the light-blocking layer being provided with a first array of apertures, and the cross-section of the apertures in the first array of apertures being an inverted trapezoid; a light-transmitting dielectric layer comprising a first color filter unit, the first color filter unit being formed in a portion of the apertures in the first array of apertures so as to cover the portion of the apertures; and a microlens array, which is disposed above the light-transmitting dielectric layer.
A fingerprint detection apparatus (20). The fingerprint detection apparatus (20) is disposed below a display screen of an electronic device and is characterized by comprising: a microlens array (100) comprising multiple microlenses; at least two light blocking layers (110) disposed below the microlens array (100), each of the at least two light blocking layers (110) comprising at least one first small hole corresponding to each microlens of the microlens array (100); a pixel unit array (120) disposed below the at least two light blocking layers (110), the pixel unit array (120) comprising at least one pixel unit corresponding to each microlens, the pixel unit being used for receiving an optical signal that is converged by the corresponding microlens and guided by the first small holes of the at least two light blocking layers (110), wherein a bottom light blocking layer of the at least two light blocking layers (110) is a metal layer, and the first small hole of the bottom light blocking layer has one-to-one correspondence to the pixel units; a filter layer (130) disposed between the bottom light blocking layer and the light blocking layer above the bottom light blocking layer; and a lateral light blocking layer (140) disposed on an upper surface of a non-perforated region of the bottom light blocking layer and located below the filter layer (130), the height of the lateral light blocking layer (140) being greater than or equal to 90% of the distance between the bottom light blocking layer and the filter layer (130), the lateral light blocking layer (140) comprising at least one second small hole corresponding to each microlens, and the size of the second small hole being greater than that of the first small hole of the bottom light blocking layer.
Provided are a vertical-cavity surface-emitting laser and an electronic device. The vertical-cavity surface-emitting laser comprises: a substrate, and a second reflector, a second isolation layer, an active layer, a first isolation layer and a first reflector which are sequentially stacked on the substrate, wherein a resonant cavity is defined between the second reflector and the first reflector; the first reflector comprises a first grating layer and a first transparent conducting layer which are mutually stacked, and the refractive index of the material of the first grating layer is larger than that of the material of the first transparent conducting layer; the first reflector has a light emitting region for emitting a laser; and both the first transparent conducting layer and the first grating layer at least cover the light emitting region. By means of the present application, the series resistance of the device can be reduced, the heat generation of the device can be reduced, and the thermal stability and the reliability of the device can be improved.
H01S 5/183 - Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
A capacitance measurement apparatus and an earphone, by means of which the measurement performance of the capacitance measurement apparatus can be improved, and the production efficiency and yield of the earphone can be improved. The capacitance measurement apparatus is applied to an earphone, the earphone comprising a front shell and a rear shell. The capacitance measurement apparatus comprises: a circuit board, a sensing electrode and a processing unit, which are arranged on the front shell of the earphone, wherein the circuit board, the sensing electrode and the processing unit are integrated to form a whole; the sensing electrode is arranged in a first area of the circuit board, the processing unit is arranged in a second area of the circuit board, and the sensing electrode is electrically connected to the processing unit by means of a metal circuit layer in the circuit board; the sensing electrode is used for sensing an object under test and forming a capacitance measurement signal, the capacitance measurement signal being transmitted to the processing unit by means of the metal circuit layer; and the processing unit is used for processing the capacitance measurement signal so as to test the object under test. On this basis, parts of a capacitance measurement apparatus are integrated, so that the capacitance measurement apparatus can be miniaturized and has a good anti-interference performance, and function testing can be realized when an earphone is in a semi-finished product state.
A fingerprint identification apparatus (400), an electronic device, and an ambient light detection method. The fingerprint identification apparatus (400) comprises an optical path layer (410) and an optical fingerprint sensor (420); the optical path layer (410) is used for guiding optical signals in N directions from a second region of a fingerprint detection region and an optical signal from a first region of the fingerprint detection region to the optical fingerprint sensor (420); the optical fingerprint sensor (420) is disposed below the optical path layer (410); the optical fingerprint sensor (420) comprises a first pixel region (411) and a plurality of second pixel regions (412); the first pixel region (411) is used for receiving the optical signal from the first region, and the plurality of second pixel regions (412) are used for receiving the optical signals in the N directions from the second region. The fingerprint identification apparatus (400) can implement double detection functions, namely, fingerprint detection and ambient light detection, thereby improving user experience without increasing cost.
Embodiments of the present application provide a detection apparatus for biological characteristic information and an electronic device, capable of effectively implementing the detection of multiple biological characteristic information. The detection apparatus is suitable for an electronic device provided with a liquid crystal display screen; the liquid crystal display screen comprises a backlight module; and the backlight module comprises a reflective film away from the liquid crystal display screen. The detection apparatus comprises: at least two light sources comprising a first light source and a second light source, the first light source being an external infrared light source, and the second light source being a red-light light source; and a photosensitive assembly that is disposed below the backlight module and used for: receiving a first light signal that is emitted by the first light source, reflected or transmitted by a finger of a user above the liquid crystal display screen and passes through the reflective film and a second light signal that is emitted by the second light source, reflected or transmitted by the finger and passes through the reflective film, and the photosensitive assembly being also used for converting the first light signal into a first PPG signal and converting the second light signal into a second PPG signal, the first light signal being used for fingerprint recognition, and the first PPG signal and the second PPG signal being used for measuring blood oxygen of the user.
A patching method and apparatus. A chip comprises a first program. The method comprises: when a first program executes a first function, running an interruption service program, wherein the first function is a problem function determined during a chip debugging process; acquiring an address of a second function on the basis of a preset address mapping relationship between the first function and the second function, wherein the first function and the second function are stored in different memories, and the second function is a patch function of the first function; running the second function on the basis of the address of the second function, so as to complete patching processing on a chip; and returning to execute a third function, which is located after the first function, in the first program.
Provided in the embodiments of the present application are a data uploading method, a data downloading method and a related device. The data uploading method comprises: acquiring access control data to be uploaded; sending a PIN to a server in response to an input of a user, wherein the PIN is used for verifying whether the identity of the user is legitimate; receiving first confirmation information sent by the server, and creating a random factor, wherein the first confirmation information is used for confirming whether the verification for the identity of the user is successful; determining a first secret key on the basis of the PIN and the random factor, and encrypting, on the basis of the first secret key, the access control data to be uploaded so as to obtain first data ciphertext; and uploading the first data ciphertext and the random factor to the server. Therefore, secure transmission of data is realized.
G06Q 20/34 - Payment architectures, schemes or protocols characterised by the use of specific devices using cards, e.g. integrated circuit [IC] cards or magnetic cards
97.
ACTIVE STYLUS FOR TOUCH SCREEN AND METHOD FOR MEASURING USER BIOMETRICS
An active stylus for a touch screen and a method for measuring user biometrics. The active stylus comprises a biometric measurement assembly that is disposed on a barrel of the active stylus and used for measuring biometrics of a user who uses the active stylus, the biometrics comprising at least one of the following: pulse, blood oxygen, and electrocardiogram, wherein the biometric measurement assembly comprises: a photoplethysmography (PPG) module located at a grip portion of the barrel and used for measuring the pulse and/or blood oxygen of the user, and/or an electrocardiograph (ECG) module; the ECG module is used for determining the electrocardiogram of the user, and at least one lead electrode of the ECG module is located at the grip portion of the barrel. According to the active stylus for a touch screen and the method for measuring user biometrics of the present application, the biometrics of the user can be measured by means of the active stylus, thereby providing a convenient and fast way for personal health management.
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
A61B 5/0205 - Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
98.
METHOD AND APPARATUS FOR TOUCH DETECTION OF MULTIPLE CHANNELS IN TOUCH SCREEN
Embodiments of the present application provide a method and apparatus for the touch detection of multiple channels in a touch screen. The method comprises: according to respective output signals of a non-touched first reference channel among multiple channels when a touch screen is in a screen-on state and a screen-off state, determining a noise signal of the first reference channel; according to a display noise coefficient of a target channel and the noise signal of the first reference channel, determining a noise signal of the target channel; and removing the noise signal of the target channel from an original output signal of the target channel to obtain a target output signal of the target channel for touch detection. The method and apparatus for the touch detection of multiple channels in a touch screen provided by the present application can improve the efficiency of touch detection.
The present application provides a touch driver circuit, a driver chip, and a touchscreen device. The touch driver circuit is used for outputting a drive signal to drive a touch electrode of the touchscreen device. The touch driver circuit comprises: a power supply voltage generating circuit, a switch circuit, and a first storage capacitor. A first input end of the switch circuit is connected to the power supply voltage generating circuit. A second input end of the switch circuit is connected to a ground end (GND) via the first storage capacitor. A third input end of the switch circuit is connected to the ground end (GND). An output end of the switch circuit is connected to the touch electrode. The power supply voltage generating circuit is used for generating a first positive voltage. The switch circuit is used for controlling the touch electrode to connect to the power supply voltage generating circuit during a first period, controlling the touch electrode to connect to the first storage capacitor during a second period, and controlling the touch electrode to connect to the ground end (GND) during a third period. The touch driver circuit has reduced driving power consumption.
Provided in the present application are a touch-control driving circuit, a driving chip and a touch-control display apparatus. The touch-control driving circuit is used for outputting a driving signal to drive a driving electrode of a touch-control display apparatus. The touch-control driving circuit comprises a voltage generating circuit and a switching circuit, wherein the voltage generating circuit is electrically connected to the switching circuit. The voltage generating circuit comprises at least one energy storage capacitor, wherein the at least one energy storage capacitor is used for storing electric charges released by the driving electrode, and transferring the stored electric charges to the driving electrode. The switching circuit is used for controlling the voltage generating circuit to periodically output a power supply voltage, a first positive voltage, a second positive voltage, a third positive voltage and a zero voltage, wherein the first positive voltage, the second positive voltage and the third positive voltage are voltages provided by the at least one energy storage capacitor. The touch-control driving circuit has lower power consumption.
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