InvenSense, Inc.

United States of America

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B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate 129
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1.

FIXED-FIXED MEMBRANE FOR MICROELECTROMECHANICAL SYSTEM MICROPHONE

      
Application Number US2022043704
Publication Number 2024/058783
Status In Force
Filing Date 2022-09-15
Publication Date 2024-03-21
Owner INVENSENSE, INC. (USA)
Inventor
  • Seeger, Joseph
  • Bharatan, Sushil
  • Randles, Andrew
  • Foster, Michael John

Abstract

The present invention relates to a fixed-fixed membrane for a microelectromechanical system (MEMS) microphone. In one embodiment, a MEMS acoustic sensor includes a substrate; a membrane situated parallel to the substrate; and at least one vent formed into the membrane, wherein the at least one vent is a curved opening in the membrane, and wherein the at least one vent is disposed substantially along a length of the membrane.

IPC Classes  ?

  • H04R 19/00 - Electrostatic transducers
  • H04R 19/04 - Microphones
  • H04R 7/22 - Clamping rim of diaphragm or cone against seating
  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
  • H04R 7/10 - Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact

2.

FIXED-FIXED MEMBRANE FOR MICROELECTROMECHANICAL SYSTEM MICROPHONE

      
Application Number 17931783
Status Pending
Filing Date 2022-09-13
First Publication Date 2024-03-14
Owner INVENSENSE, INC. (USA)
Inventor
  • Seeger, Joseph
  • Bharatan, Sushil
  • Randles, Andrew
  • Foster, Michael John

Abstract

The present invention relates to a fixed-fixed membrane for a microelectromechanical system (MEMS) microphone. In one embodiment, a MEMS acoustic sensor includes a substrate; a membrane situated parallel to the substrate; and at least one vent formed into the membrane, wherein the at least one vent is a curved opening in the membrane, and wherein the at least one vent is disposed substantially along a length of the membrane.

IPC Classes  ?

  • H04R 19/04 - Microphones
  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes

3.

LOW STRESS OVERTRAVEL STOP

      
Application Number 18502444
Status Pending
Filing Date 2023-11-06
First Publication Date 2024-02-29
Owner INVENSENSE, INC. (USA)
Inventor
  • Thompson, Matthew Julian
  • Walmsley, Robert

Abstract

A microelectromechanical system device is described. The microelectromechanical system device can comprise: a proof mass coupled to an anchor via a spring, wherein the proof mass moves in response to an imposition of an external load to the proof mass, and an overtravel stop comprising a first portion and a second portion.

IPC Classes  ?

  • G01P 15/08 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values

4.

EVENT ACTIVITY DETECTION SIGNALING

      
Application Number 17821548
Status Pending
Filing Date 2022-08-23
First Publication Date 2024-02-29
Owner INVENSENSE, INC. (USA)
Inventor
  • Svajda, Miro
  • Riva, Stefano

Abstract

Acoustic and other activity detection signaling is provided herein. Operations of a method can include determining a micro-electromechanical system (MEMS) device is no longer in an initialization state and receiving a first signal that instructs the MEMS device to perform event activity detection. The method can also include receiving one or more event signals and determining that an event signal of one or more event signals satisfies a defined event characteristic. The method can also include outputting a second signal that comprises information indicative of a detection of event activity at the MEMS device being more than the defined event characteristic.

IPC Classes  ?

  • H04R 3/00 - Circuits for transducers
  • G10L 25/18 - Speech or voice analysis techniques not restricted to a single one of groups characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
  • G10L 25/51 - Speech or voice analysis techniques not restricted to a single one of groups specially adapted for particular use for comparison or discrimination
  • H04R 19/04 - Microphones

5.

EVENT ACTIVITY DETECTION SIGNALING

      
Application Number US2023028933
Publication Number 2024/044018
Status In Force
Filing Date 2023-07-28
Publication Date 2024-02-29
Owner INVENSENSE, INC. (USA)
Inventor
  • Svajda, Miro
  • Riva, Stefano

Abstract

Acoustic and other activity detection signaling is provided herein. Operations of a method can include determining a micro-electromechanical system (MEMS) device is no longer in an initialization state and receiving a first signal that instructs the MEMS device to perform event activity detection. The method can also include receiving one or more event signals and determining that an event signal of one or more event signals satisfies a defined event characteristic. The method can also include outputting a second signal that comprises information indicative of a detection of event activity at the MEMS device being more than the defined event characteristic.

IPC Classes  ?

6.

APPLYING A POSITIVE FEEDBACK VOLTAGE TO AN ELECTROMECHANICAL SENSOR UTILIZING A VOLTAGE-TO-VOLTAGE CONVERTER TO FACILITATE A REDUCTION OF CHARGE FLOW IN SUCH SENSOR REPRESENTING SPRING SOFTENING

      
Application Number 18500867
Status Pending
Filing Date 2023-11-02
First Publication Date 2024-02-22
Owner INVENSENSE, INC. (USA)
Inventor
  • Seeger, Joseph
  • Shettigar, Pradeep

Abstract

Reducing a spring softening effect on a capacitive sense element of an electromechanical sensor is presented herein. A system, such as a microphone or an accelerometer, comprises an electromechanical sensor and a voltage-to-voltage converter component. The electromechanical sensor comprises a capacitive sense element and a bias voltage component that applies a bias voltage to a sense electrode of the capacitive sense element. The voltage-to-voltage converter component couples a positive feedback voltage to the sense electrode to maintain a constant charge at the sense electrode to facilitate a reduction of charge flow in the electromechanical sensor representing a spring softening effect on the capacitive sense element. In an example, the spring softening effect on the sense element alters a resonant frequency of the sense element and a gain of the sense element. In another example, the charge flow corresponds to a parasitic capacitance that is electrically coupled to the sense electrode.

IPC Classes  ?

  • G01P 1/00 - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT  - Details of instruments
  • G01P 15/00 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
  • H03F 3/45 - Differential amplifiers
  • G01P 15/125 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by capacitive pick-up

7.

PIEZOELECTRIC MICROMACHINED TRANSDUCER AND DEVICE

      
Application Number 18387043
Status Pending
Filing Date 2023-11-05
First Publication Date 2024-02-22
Owner InvenSense, Inc. (USA)
Inventor
  • Goericke, Fabian T.
  • Przybyla, Richard J.
  • Eovino, Benjamin E.

Abstract

An ultrasonic transducer device comprises a piezoelectric micromachined ultrasonic transducer (PMUT), a transmitter with first and second differential outputs, and a controller. The PMUT includes a membrane layer. A bottom electrode layer, comprising a first bottom electrode and a second bottom electrode, is disposed above the membrane layer. The piezoelectric layer is disposed above the bottom electrode layer. The top electrode layer is disposed above the piezoelectric layer and comprises a segmented center electrode disposed above a center of the membrane layer and a segmented outer electrode spaced apart from the segmented center electrode. The controller, responsive to the PMUT being placed in a transmit mode, is configured to couple the first and second segments of the bottom electrode layer with ground, couple the first output of the transmitter with the segments of the segmented center electrode, and couple the second output with the segments of the segmented outer electrode.

IPC Classes  ?

  • A61B 8/00 - Diagnosis using ultrasonic, sonic or infrasonic waves
  • G01S 7/521 - Constructional features
  • G01N 29/24 - Probes
  • B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
  • H10N 30/87 - Electrodes or interconnections, e.g. leads or terminals

8.

SIGNAL-TO-NOISE RATIO FOR PHOTOACOUSTIC GAS SENSORS

      
Application Number 17890016
Status Pending
Filing Date 2022-08-17
First Publication Date 2024-02-22
Owner InvenSense, Inc. (USA)
Inventor
  • Parker, Jeremy
  • Goel, Nishit
  • Bart, Stephen

Abstract

A bi-directional photoacoustic gas sensor includes a first photoacoustic cell, where an electromagnetic radiation source emits radiation to interact with an external gas and generate pressure waves that are detected by a MEMS diaphragm. A second photoacoustic cell has an interior volume and acoustic compliance that corresponds to the interior volume and acoustic compliance of the first photoacoustic cell. Processing circuitry within a substrate uses a first acoustic signal, received by the first photoacoustic cell, and a second acoustic signal, received by the second photoacoustic cell, to determine a bi-directional response of the gas sensor to remove noise and improve the sensor's signal-to-noise ratio.

IPC Classes  ?

  • G01N 21/17 - Systems in which incident light is modified in accordance with the properties of the material investigated
  • B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems (MEMS)

9.

IMPROVED SIGNAL-TO-NOISE RATIO FOR PHOTOACOUSTIC GAS SENSORS

      
Application Number US2023029675
Publication Number 2024/039541
Status In Force
Filing Date 2023-08-08
Publication Date 2024-02-22
Owner INVENSENSE, INC (USA)
Inventor
  • Parker, Jeremy
  • Goel, Nishit
  • Bart, Stephen

Abstract

A bi-directional photoacoustic gas sensor includes a first photoacoustic cell, where an electromagnetic radiation source emits radiation to interact with an external gas and generate pressure waves that are detected by a MEMS diaphragm. A second photoacoustic cell has an interior volume and acoustic compliance that corresponds to the interior volume and acoustic compliance of the first photoacoustic cell. Processing circuitry within a substrate uses a first acoustic signal, received by the first photoacoustic cell, and a second acoustic signal, received by the second photoacoustic cell, to determine a bi-directional response of the gas sensor to remove noise and improve the sensor's signal-to-noise ratio.

IPC Classes  ?

  • G01N 29/02 - Analysing fluids
  • G01N 29/22 - Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object - Details
  • G01N 29/24 - Probes
  • G01N 29/30 - Arrangements for calibrating or comparing, e.g. with standard objects
  • G01N 29/32 - Arrangements for suppressing undesired influences, e.g. temperature or pressure variations

10.

Piezoelectric Micromachined Ultrasonic Transducer With A Patterned Membrane Structure

      
Application Number 18381104
Status Pending
Filing Date 2023-10-17
First Publication Date 2024-02-08
Owner InvenSense, Inc. (USA)
Inventor
  • Guedes, Andre
  • Goericke, Fabian
  • Shelton, Stefon
  • Costello, Benedict
  • Horsley, David

Abstract

A piezoelectric micromachined ultrasonic transducer (PMUT) device includes a substrate having an opening therethrough and a membrane attached to the substrate over the opening. An actuating structure layer on a surface of the membrane includes a piezoelectric layer sandwiched between the membrane and an upper electrode layer. The actuating structure layer is patterned to selectively remove portions of the actuating structure from portions of the membrane to form in a central portion proximate a center of the open cavity and three or more rib portions projecting radially outward from the central portion.

IPC Classes  ?

  • H10N 30/50 - Piezoelectric or electrostrictive devices having a stacked or multilayer structure
  • H04R 17/00 - Piezoelectric transducers; Electrostrictive transducers
  • H10N 30/057 - Manufacture of multilayered piezoelectric or electrostrictive devices, or parts thereof, e.g. by stacking piezoelectric bodies and electrodes by stacking bulk piezoelectric or electrostrictive bodies and electrodes
  • H10N 30/87 - Electrodes or interconnections, e.g. leads or terminals
  • H10N 30/88 - Mounts; Supports; Enclosures; Casings

11.

UTILIZATION OF MICROPHONE ULTRASONIC RESPONSE

      
Application Number 18360463
Status Pending
Filing Date 2023-07-27
First Publication Date 2024-02-08
Owner INVENSENSE, INC. (USA)
Inventor
  • Parker, Jeremy
  • Bart, Stephen

Abstract

Utilization of microphone ultrasonic response is described. A system, comprising: a microelectromechanical system (MEMS) microphone device configured to capture signal data representing an ultrasonic signal and an audio-band signal simultaneously, and a processing circuitry configured to adjust a configuration parameter associated with the MEMS microphone device based on the ultrasonic signal.

IPC Classes  ?

  • H04B 11/00 - Transmission systems employing ultrasonic, sonic or infrasonic waves

12.

UTILIZATION OF MICROPHONE ULTRASONIC RESPONSE

      
Application Number US2023028946
Publication Number 2024/026073
Status In Force
Filing Date 2023-07-28
Publication Date 2024-02-01
Owner INVENSENSE, INC. (USA)
Inventor
  • Parker, Jeremy
  • Bart, Stephen

Abstract

Utilization of microphone ultrasonic response is described. A system, comprising: a microelectromechanical system (MEMS) microphone device configured to capture signal data representing an ultrasonic signal and an audio-band signal simultaneously, and a processing circuitry configured to adjust a configuration parameter associated with the MEMS microphone device based on the ultrasonic signal.

IPC Classes  ?

  • H04S 7/00 - Indicating arrangements; Control arrangements, e.g. balance control
  • H04R 1/10 - Earpieces; Attachments therefor
  • H04R 19/04 - Microphones
  • H04R 19/00 - Electrostatic transducers
  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes

13.

GLITCH-FREE ZERO-LATENCY AGC FOR SIGMA DELTA MODULATOR

      
Application Number 18343151
Status Pending
Filing Date 2023-06-28
First Publication Date 2024-01-18
Owner INVENSENSE, INC. (USA)
Inventor Ballini, Marco

Abstract

A system, comprising: a sigma-delta modulator using an integrator of a cascade-of-integrator feedback topology to perform operations is disclosed. The operations can comprise in response to receiving a gain value, applying the gain value to a group of feed-forward coefficients, determining a change in the gain value, and adjusting, during a clock cycle of a defined time period, a plurality of state variables of the sigma-delta modulator by multiplying each of the state variables by the scale factor that is a ratio of the gain value after determining the change in the gain value the gain value before determining the change in the gain value.

IPC Classes  ?

  • H03M 3/00 - Conversion of analogue values to or from differential modulation

14.

Accelerometer-Based Voice Activity Detection

      
Application Number 18218953
Status Pending
Filing Date 2023-07-06
First Publication Date 2024-01-18
Owner InvenSense, Inc. (USA)
Inventor Poncot, Remi Louis Clement

Abstract

An example embodiment includes a head worn electronic device comprising a transceiver for communicating with a host device, an accelerometer having a plurality of axes for detecting three-dimensional forces applied to the head worn electronic device, and a processor. The processor is configured to receive a three-dimensional vibration vector from the accelerometer caused by a voice of a user while the head worn electronic device is positioned in a user's ear, process the three-dimensional vibration vector to determine a voice activity detection axis that correlates with vibrations caused by the voice of the user, perform processing of data from the voice activity detection axis to detect voice activity of the user, and send an instruction to the host device via the transceiver to control the host device based on the voice activity detection.

IPC Classes  ?

  • G10L 25/78 - Detection of presence or absence of voice signals
  • H04R 1/10 - Earpieces; Attachments therefor
  • G10L 15/08 - Speech classification or search

15.

REDUCED LIGHT REFLECTION PACKAGE

      
Application Number 18371488
Status Pending
Filing Date 2023-09-22
First Publication Date 2024-01-11
Owner InvenSense, Inc. (USA)
Inventor
  • Brioschi, Roberto
  • Hayata, Kazunori
  • Yeh, Jr-Cheng
  • Solanki, Dinesh Kumar

Abstract

A MEMS sensor includes a through hole to allow communication with an external environment, such as to send or receive acoustic signals or to be exposed to the ambient environment. In addition to the information that is being measured, light energy may also enter the environment of the sensor via the through hole, causing short-term or long-term effects on measurements or system components. A light mitigating structure is formed on or attached to a lid of the MEMS die to absorb or selectively reflect the received light in a manner that limits effects on the measurements or interest and system components.

IPC Classes  ?

  • H04R 19/04 - Microphones
  • B81B 7/00 - Microstructural systems
  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • H04R 1/04 - Structural association of microphone with electric circuitry therefor
  • H04R 3/00 - Circuits for transducers

16.

TDK SMARTROBOTICS

      
Application Number 018971417
Status Pending
Filing Date 2024-01-07
Owner InvenSense, Inc. (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Downloadable computer software for integrating drivers for multi-sensor modules for internet of things software development systems and internet of things applications; measuring equipment sensors comprising inertial measurement unit, magnetometer, pressure sensor, microphone, temperature sensor, ultrasonic sensor for measuring acceleration, angle of rotation, pressure, temperature, sound, and distance ranges for use in internet of things applications and internet of things software development systems; measuring equipment sensors comprising an inertial measurement unit, magnetometer, pressure sensor, temperature sensor, ultrasonic sensor, microphone, passive components, and high-precision algorithms for use in sensor fusion and internet of things applications, industrial, drone, and automotive applications, and internet of things software development systems..

17.

ULTRASONIC DEVICE COEXISTENCE

      
Application Number 18216203
Status Pending
Filing Date 2023-06-29
First Publication Date 2024-01-04
Owner InvenSense, Inc. (USA)
Inventor
  • Youssef, Joe
  • Kline, Mitchell
  • Przybyla, Richard J.

Abstract

A device comprises a processor communicatively coupled with an ultrasonic sensor which is configured to repeatedly emit ultrasonic pulses during transmit periods which are interspersed with receive periods. Returned ultrasonic signals corresponding to the emitted ultrasonic pulses are received by the ultrasonic sensor during the receive periods. The processor is configured to direct the ultrasonic sensor to listen, during a listening window, for a potentially interfering ultrasonic signal from a second ultrasonic sensor. The listening window is prior to a transmit period of the transmit periods. In response to detecting the potentially interfering ultrasonic signal during the listening window, the processor is configured to adjust operation of the ultrasonic sensor to avoid an ultrasonic collision with the second ultrasonic sensor to facilitate coexistence of the ultrasonic sensor and the second ultrasonic sensor in an operating environment shared by the ultrasonic sensor and the second ultrasonic sensor.

IPC Classes  ?

  • G01S 15/00 - Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
  • G01S 15/87 - Combinations of sonar systems
  • G01S 7/52 - RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - Details of systems according to groups , , of systems according to group
  • G01S 15/10 - Systems for measuring distance only using transmission of interrupted, pulse-modulated waves

18.

COEXISTENCE OF ULTRASONIC TRANSDUCERS IN AN OPERATING ENVIRONMENT

      
Application Number US2023025374
Publication Number 2023/249869
Status In Force
Filing Date 2023-06-15
Publication Date 2023-12-28
Owner INVENSENSE, INC. (USA)
Inventor
  • Hall, Daniela
  • Kline, Mitchell
  • Youssef, Joe

Abstract

A device comprises a processor coupled with an ultrasonic transducer which is configured to repeatedly emit ultrasonic pulses during transmit periods which are interspersed with listening windows. Each sequential pair of the transmit periods is separated by a single listening window of the listening windows. During a fixed portion of a listening window of the listening windows the ultrasonic transducer is configured to receive returned signals corresponding to an emitted ultrasonic pulse of the ultrasonic pulses which was transmitted during a transmit period of the transmit periods that immediately preceded the listening window. The processor randomizes an overall length of each listening window of the listening windows. The processor directs filtering of returned signals received during a plurality of the randomized listening windows to achieve filtered returned signals. The processor detects, using the filtered returned signals, a moving object in a field of view of the ultrasonic transducer.

IPC Classes  ?

  • G01S 15/10 - Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
  • G01S 7/527 - Extracting wanted echo signals
  • G01S 15/52 - Discriminating between fixed and moving objects or between objects moving at different speeds

19.

COEXISTENCE OF ULTRASONIC TRANSDUCERS IN AN OPERATING ENVIRONMENT

      
Application Number 18207762
Status Pending
Filing Date 2023-06-09
First Publication Date 2023-12-28
Owner InvenSense, Inc. (USA)
Inventor
  • Hall, Daniela
  • Kline, Mitchell
  • Youssef, Joe

Abstract

A device comprises a processor coupled with an ultrasonic transducer which is configured to repeatedly emit ultrasonic pulses during transmit periods which are interspersed with listening windows. Each sequential pair of the transmit periods is separated by a single listening window of the listening windows. During a fixed portion of a listening window of the listening windows the ultrasonic transducer is configured to receive returned signals corresponding to an emitted ultrasonic pulse of the ultrasonic pulses which was transmitted during a transmit period of the transmit periods that immediately preceded the listening window. The processor randomizes an overall length of each listening window of the listening windows. The processor directs filtering of returned signals received during a plurality of the randomized listening windows to achieve filtered returned signals. The processor detects, using the filtered returned signals, a moving object in a field of view of the ultrasonic transducer.

IPC Classes  ?

  • G01S 15/10 - Systems for measuring distance only using transmission of interrupted, pulse-modulated waves
  • G01S 15/04 - Systems determining presence of a target

20.

INVENSENSE

      
Serial Number 98328371
Status Pending
Filing Date 2023-12-22
Owner InvenSense, Inc. ()
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Measuring equipment sensors comprising an inertial measurement unit, magnetometer, pressure sensor, microphone, temperature sensor, ultrasonic sensor for measuring acceleration, angle of rotation, sound, and distance ranges, for use in sensor fusion, Internet of Things, industrial applications and software development systems, drone applications and software development systems, automotive applications and software development systems; measuring equipment comprising ultrasonic time-of-flight sensors for measuring distances, obstacles, sounds, ultrasonic signals, and ultrasonic range sensing; acoustic sensors; microphones; sensors for detecting sound; sensors for recognizing sound; sensors for analyzing sound; sensors for the determination of location, positions, movement, change in pressure, activity monitoring, and change in elevation, for use in computers, laptops, tablets, smartphones, portable electronic devices, drones, smart watches, electronic tracking devices, and wearable electronic devices; fingerprint sensors and scanners; ultrasonic sensors; biometric identification apparatus; touchscreen sensors for interpreting fingerprints, image enhancement, fingerprint matching, user identification and user authentication; optical sensors for interpreting fingerprints, image enhancement, fingerprint matching, user identification, and user authentication; sensor development kits for motion comprised primarily of electronic sensors and software for use in industrial applications; sensor development kits, namely, kits comprised primarily of computer hardware and downloadable software for use in developing and operating sensors and electronic devices for detecting, transmitting, recognizing, analyzing, and tracking motion, movement, positions, distances, obstacles, sounds, change in elevation, ultrasonic signals, and barometric pressure; downloadable and recorded software for use with sensors for monitoring position, movement, vibration, inclination, distances, environmental conditions, and Internet of Things applications; downloadable software for use with sensor devices and sensors for detecting sound, recognizing sound, analyzing sound, monitoring sound, and controlling sound; downloadable software for use with sensor-enabled microphones, headsets, wireless audio devices, smart speakers, mobile devices, wearable mobile technologies; downloadable software for interpreting fingerprints; hardware for interpreting fingerprints, image enhancement, fingerprint matching, user identification, and user authentication; software for use with sensor-enabled microphones, headphones, wireless audio devices, smart speakers, mobile devices, wearable mobile technologies, and Internet of Things devices for capturing and storing sensor data and analytics

21.

LOW NOISE READOUT INTERFACE FOR CAPACITIVE SENSORS WITH NEGATIVE CAPACITANCE

      
Application Number 18331323
Status Pending
Filing Date 2023-06-08
First Publication Date 2023-12-21
Owner INVENSENSE, INC. (USA)
Inventor
  • Valle, Stefano
  • Hanzlik, Tomasz E.

Abstract

Disclosed embodiments provide a self-contained topology that enables a significant noise reduction of capacitive sensor readout interfaces. For example, various embodiments can provide low noise capacitive sensor readout interfaces or analog front ends having a main buffer amplifier in a bootstrap configuration, wherein a bootstrap loop configuration comprises a negative capacitance coupled to an input of the main buffer amplifier with a negative impedance converter.

IPC Classes  ?

  • G01R 27/26 - Measuring inductance or capacitance; Measuring quality factor, e.g. by using the resonance method; Measuring loss factor; Measuring dielectric constants

22.

SMARTAUTOMOTIVE

      
Application Number 1767547
Status Registered
Filing Date 2023-11-07
Registration Date 2023-11-07
Owner InvenSense, Inc. (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Inertial measurement unit; motion sensors; accelerometers; gyroscopes; magnetometers; pressure sensors; temperature sensors; ultrasonic sensors for measuring acceleration, angle of rotation, pressure, temperature, and distance ranges, all for use in automotive systems, autonomous car systems, advanced driver assisted systems, internet of things applications, and internet of things software development systems; measuring equipment (sensors) comprising an inertial measurement unit, magnetometer, pressure sensor, temperature sensor, ultrasonic sensor, passive components, and high-precision algorithms, all for use in sensor fusion for automotive systems, autonomous car systems, advanced driver assisted systems, internet of things applications, and internet of things software development systems; sensor development kits, namely, kits comprised primarily of computer hardware and downloadable software for use in developing and operating sensors and electronic devices for detecting, transmitting, recognizing, analyzing, and tracking motion, movement, positions, distances, obstacles, ultrasonic signals, and ultrasonic range sensing; downloadable computer software for integrating drivers for multi-sensor modules for automotive systems, autonomous car systems, advanced driver assisted systems, internet of things software development systems, and internet of things applications.

23.

Parameterized Register Programming Protocol (RPP) To Save Layout Routing Area

      
Application Number 17843831
Status Pending
Filing Date 2022-06-17
First Publication Date 2023-12-21
Owner InvenSense, Inc. (USA)
Inventor
  • Wang, Hou-Yi
  • Datta, Biswajit
  • Shrivastava, Sarvesh

Abstract

A parameterized register interface of an integrated circuit and methods of register programming. An integrated circuit includes a digital controller, at least one client comprising at least one programmable register and a parameterized bus coupled to the digital controller and the client. The digital controller is configured to: transfer, via the parameterized bus, address data and/or register data between the digital controller and the client according to one or more interface signals conveyed over the parameterized bus; generate a transaction command comprising at least one transaction specific to the programmable register of the client, the transaction command generated according to a predetermined register programming protocol; and transfer, via the parameterized bus, the transaction command together with at least one predetermined combination of the interface signals to the client. The programmable register is configured to perform the transaction in accordance with the transaction command.

IPC Classes  ?

  • G11C 7/10 - Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
  • G11C 7/22 - Read-write [R-W] timing or clocking circuits; Read-write [R-W] control signal generators or management
  • G11C 7/24 - Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells

24.

INCREMENTAL ANALOG TO DIGITAL CONVERTER INCORPORATING NOISE SHAPING AND RESIDUAL ERROR QUANTIZATION

      
Application Number 17805761
Status Pending
Filing Date 2022-06-07
First Publication Date 2023-12-07
Owner INVENSENSE, INC. (USA)
Inventor
  • Oliaei, Omid
  • Bart, Stephen

Abstract

The present invention relates to an incremental analog to digital converter incorporating noise shaping and residual error quantization. In one embodiment, a circuit includes an incremental analog to digital converter, comprising a loop filter that filters an analog input signal in response to receiving a reset signal, resulting in a filtered analog input signal, and a successive approximation register (SAR) quantizer, coupled with the filtered analog input signal, that converts the filtered analog input signal to an intermediate digitized output of a first resolution based on a reference voltage, wherein the SAR quantizer comprises a feedback loop that shapes quantization noise generated by the SAR quantizer as a result of converting the filtered analog input signal; and a digital filter, coupled with the intermediate digitized output, that generates a digitized output signal of a second resolution, greater than the first resolution, by digitally filtering the intermediate digitized output.

IPC Classes  ?

  • H03M 1/46 - Analogue value compared with reference values sequentially only, e.g. successive approximation type with digital/analogue converter for supplying reference values to converter
  • H03M 1/06 - Continuously compensating for, or preventing, undesired influence of physical parameters
  • H03M 1/12 - Analogue/digital converters
  • H03M 1/00 - Analogue/digital conversion; Digital/analogue conversion

25.

ANCHOR DESIGN WITH REJECTION OF EXTERNAL SHEAR FORCE

      
Application Number 17740832
Status Pending
Filing Date 2022-05-10
First Publication Date 2023-11-16
Owner InvenSense, Inc. (USA)
Inventor
  • Sharma, Mrigank
  • Kumar, Varun Subramaniam
  • Coronato, Luca
  • Laghi, Giacomo
  • Thompson, Matthew Julian

Abstract

A MEMS sensor includes at least one anchor that extends into a MEMS layer and a proof mass suspended from the at least one anchor. Each anchor is coupled to the proof mass via two compliant springs that are oriented perpendicular to each other and attached to a respective anchor. The compliant springs absorb non-measured external forces such as shear forces that are applied to the sensor packaging, preventing these forces from modifying the relative location and operation of the proof mass.

IPC Classes  ?

  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes

26.

ACOUSTIC ACTIVITY DETECTION

      
Application Number 18359242
Status Pending
Filing Date 2023-07-26
First Publication Date 2023-11-16
Owner INVENSENSE, INC. (USA)
Inventor
  • Pitak, Tomas
  • Mucha, Igor
  • Dick, Robert
  • Tuttle, Michael

Abstract

Acoustic activity detection is provided herein. Operations of a method can include receiving an acoustic signal at a micro-electromechanical system (MEMS) microphone. Based on portions of the acoustic signal being determined to exceed a threshold signal level, output pulses are generated. Further, the method can include extracting information representative of a frequency of the acoustic signal based on respective spacing between rising edges of the output pulses.

IPC Classes  ?

27.

DRIVE AND SENSE BALANCED, SEMI-COUPLED 3-AXIS GYROSCOPE

      
Application Number 18333821
Status Pending
Filing Date 2023-06-13
First Publication Date 2023-10-12
Owner INVENSENSE, INC. (USA)
Inventor
  • Senkal, Doruk
  • Hennessy, Robert
  • Johari-Galle, Houri
  • Seeger, Joseph

Abstract

A dynamically balanced 3-axis gyroscope architecture is provided. Various embodiments described herein can facilitate providing linear and angular momentum balanced 3-axis gyroscope architectures for better offset stability, vibration rejection, and lower part-to-part coupling.

IPC Classes  ?

  • G01C 19/5712 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using masses driven in reciprocating rotary motion about an axis the devices involving a micromechanical structure
  • G01C 19/5747 - Structural details or topology the devices having two sensing masses in anti-phase motion each sensing mass being connected to a driving mass, e.g. driving frames
  • G01C 19/5762 - Structural details or topology the devices having a single sensing mass the sensing mass being connected to a driving mass, e.g. driving frames

28.

SMARTROBOTICS

      
Application Number 1752850
Status Registered
Filing Date 2023-08-25
Registration Date 2023-08-25
Owner InvenSense, Inc. (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Downloadable computer software for integrating drivers for multi-sensor modules for internet of things software development systems and internet of things applications; measuring equipment sensors comprising inertial measurement unit, magnetometer, pressure sensor, microphone, temperature sensor, ultrasonic sensor for measuring acceleration, angle of rotation, pressure, temperature, sound, and distance ranges for use in internet of things applications and internet of things software development systems; measuring equipment sensors comprising an inertial measurement unit, magnetometer, pressure sensor, temperature sensor, ultrasonic sensor, microphone, passive components, and high-precision algorithms for use in sensor fusion and internet of things applications, industrial, drone, and automotive applications, and internet of things software development systems.

29.

PRESSURE SENSOR AND MANUFACTURING METHOD FOR THE SAME

      
Application Number 18113541
Status Pending
Filing Date 2023-02-23
First Publication Date 2023-09-21
Owner InvenSense, Inc. (USA)
Inventor
  • Sasaki, Yoshitaka
  • Akiyama, Jotaro
  • Akram, Sal
  • Wang, Yaoching
  • Su, Weng Shen
  • Tang, Tsung Lin
  • Liu, Ting-Yuan
  • Shibano, Yuki
  • Lin, Chung-Hsien

Abstract

A pressure sensor includes a first electrode, a plurality of cavities, and a second electrode. The second electrode is disposed opposite the first electrode through the plurality of cavities. The second electrode includes a flat structure spanning two adjacent cavities of the plurality of cavities.

IPC Classes  ?

  • G01L 9/12 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance
  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

30.

TDK SMARTINDUSTRIAL

      
Application Number 018927680
Status Registered
Filing Date 2023-09-20
Registration Date 2024-01-31
Owner InvenSense, Inc. (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Motion sensors; industrial sensors for improving efficiency and monitoring conditions in industrial applications; sensor evaluation kits for motion measurement comprised primarily of electronic sensors and software for use in industrial applications; sensors for determining position, movement, vibration, inclination, and distances; downloadable and recorded software for use with sensors and for monitoring position, movement, vibration, inclination, distances, environmental conditions, and for Internet of Things applications..

31.

MEMS design with shear force rejection for reduced offset

      
Application Number 17733495
Grant Number 11761977
Status In Force
Filing Date 2022-04-29
First Publication Date 2023-09-19
Grant Date 2023-09-19
Owner InvenSense, Inc. (USA)
Inventor
  • Kumar, Varun Subramaniam
  • Sharma, Mrigank
  • Laghi, Giacomo
  • Coronato, Luca
  • Thompson, Matthew Julian

Abstract

A MEMS sensor includes a central anchoring region that maintains the relative position of an attached proof mass relative to sense electrodes in the presence of undesired forces and stresses. The central anchoring region includes one or more first anchors that rigidly couple to a cover substrate and a base substrate. One or more second anchors are rigidly coupled to only the cover substrate and are connected to the one or more first anchors within the MEMS layer via an isolation spring. The proof mass in turn is connected to the one or more second anchors via one or more compliant springs.

IPC Classes  ?

  • G01P 15/125 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by capacitive pick-up
  • G01P 15/08 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values

32.

Round robin sensor device for processing sensor data

      
Application Number 17680637
Grant Number 11913788
Status In Force
Filing Date 2022-02-25
First Publication Date 2023-08-31
Grant Date 2024-02-27
Owner INVENSENSE, INC. (USA)
Inventor
  • Tsinker, Vadim
  • Mazzarella, Frederico
  • Shirvani, Ali

Abstract

A round robin sensor device for processing sensor data is provided herein. The sensor device includes a multiplexer stage configured to sequentially select sensor outputs from one or more sensors continuously. Continuously and sequentially selecting sensor outputs results in a stream of selected sensor outputs. The sensor device also includes a charge-to-voltage converter operatively coupled to the multiplexer stage and configured to convert a charge from a first sensor of the one or more sensors to a voltage. Further, the sensor device includes a resettable integrator operatively coupled to the charge-to-voltage converter and configured to demodulate and integrate the voltage, resulting in an integrated voltage. Also included in the sensor device is an analog-to-digital converter operatively coupled to the resettable integrator and configured to digitize the integrated voltage to a digital code.

IPC Classes  ?

  • G01C 19/5776 - Signal processing not specific to any of the devices covered by groups
  • H03M 1/12 - Analogue/digital converters
  • G01P 15/08 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
  • H03M 1/38 - Analogue value compared with reference values sequentially only, e.g. successive approximation type
  • G01C 19/5712 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using masses driven in reciprocating rotary motion about an axis the devices involving a micromechanical structure
  • G01P 15/125 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by capacitive pick-up

33.

SMARTPRESSURE

      
Application Number 1748152
Status Registered
Filing Date 2023-03-24
Registration Date 2023-03-24
Owner INVENSENSE, INC. (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Barometric pressure measurement sensors; sensors and waterproof sensors for the determination of location, positions, movement, change in pressure, activity monitoring, and change in elevation, for use in computers, laptops, tablets, smartphones, portable electronic devices, drone, smart watches, electronic tracking devices, wearable electronic devices, and wireless connected devices; software for use with computers, laptops, tablets, smartphones, portable electronic devices, smart watches, electronic tracking devices, wearable electronic devices, and wireless connected devices, and electronic devices embedded with sensors; software for use in tracking, locating, activity monitoring, measuring change in elevation; software for operating and managing mobile phones, computers, tablet computers, portable electronic devices, smart watches, fitness devices, electronic tracking devices, wireless connected devices, wearable activity trackers, drones, and in the Internet of Things (IoT); software for use with, but not limited to, sensor devices, development kit; sensor development kits, namely, kits comprised primarily of computer hardware and downloadable software for use in developing and operating sensors and electronic devices for detecting, transmitting, recognizing, analyzing, and tracking motion, change in elevation, movement, positions, and barometric pressure.

34.

Motion sensor with sigma-delta analog-to-digital converter having resistive continuous-time digital-to-analog converter feedback for improved bias instability

      
Application Number 17674788
Grant Number 11881874
Status In Force
Filing Date 2022-02-17
First Publication Date 2023-08-17
Grant Date 2024-01-23
Owner INVENSENSE, INC. (USA)
Inventor Pelli, Gabriele

Abstract

A motion sensor with sigma-delta analog-to-digital converter (ADC) having improved bias instability is presented herein. Differential outputs of a differential amplifier of the sigma-delta ADC are electrically coupled, via respective capacitances, to differential inputs of the differential amplifier. To minimize bias instability corresponding to flicker noise that has been injected into the differential inputs, the differential inputs are electrically coupled, via respective pairs of electronic switches, to feedback resistances based on a pair of switch control signals. In this regard, a first feedback resistance of the feedback resistances is electrically coupled to a first defined voltage, and a second feedback resistance of the feedback resistances is electrically coupled to a second defined reference voltage. The differential outputs are electrically coupled to differential inputs of a differential comparator of the sigma-delta ADC, and complementary outputs of the differential comparator comprise the pair of switch control signals.

IPC Classes  ?

  • H03M 3/00 - Conversion of analogue values to or from differential modulation
  • H03F 3/45 - Differential amplifiers
  • G01C 19/5712 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using masses driven in reciprocating rotary motion about an axis the devices involving a micromechanical structure
  • G01P 1/00 - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT  - Details of instruments
  • G01P 15/08 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values
  • G01C 19/5776 - Signal processing not specific to any of the devices covered by groups
  • G01C 19/5649 - Signal processing

35.

A METHOD FOR IMPROVING DIE AREA AND POWER EFFICIENCY IN HIGH DYNAMIC RANGE DIGITAL MICROPHONES

      
Application Number 18298065
Status Pending
Filing Date 2023-04-10
First Publication Date 2023-08-03
Owner INVENSENSE, INC. (USA)
Inventor
  • Mucha, Igor
  • Perrott, Michael

Abstract

Exemplary multipath digital microphones described herein can comprise exemplary embodiments of automatic gain control and multipath digital audio signal digital signal processing chains, which allow low power and die size to be achieved as described herein, while still providing a high DR digital microphone systems. Further non-limiting embodiments can facilitate switching between multipath digital audio signal digital signal processing chains while minimizing audible artifacts associated with either the change in the gain automatic gain control amplifiers switching between multipath digital audio signal digital signal processing chains.

IPC Classes  ?

  • H03G 3/30 - Automatic control in amplifiers having semiconductor devices
  • H03F 3/68 - Combinations of amplifiers, e.g. multi-channel amplifiers for stereophonics
  • H04R 3/04 - Circuits for transducers for correcting frequency response
  • H04R 29/00 - Monitoring arrangements; Testing arrangements

36.

Low stress overtravel stop

      
Application Number 17647376
Grant Number 11846648
Status In Force
Filing Date 2022-01-07
First Publication Date 2023-07-13
Grant Date 2023-12-19
Owner INVENSENSE, INC. (USA)
Inventor
  • Thompson, Matthew Julian
  • Walmsley, Robert

Abstract

A microelectromechanical system device is described. The microelectromechanical system device can comprise: a proof mass coupled to an anchor via a spring, wherein the proof mass moves in response to an imposition of an external load to the proof mass, and an overtravel stop comprising a first portion and a second portion.

IPC Classes  ?

  • G01P 15/08 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values

37.

METHOD AND SYSTEM FOR AUTOMATIC FACTORY CALIBRATION

      
Application Number 18104213
Status Pending
Filing Date 2023-01-31
First Publication Date 2023-06-29
Owner INVENSENSE, INC. (USA)
Inventor
  • Youssef, Joe
  • Katingari, Karthik
  • Riccardi, Sebastian
  • Shekhar, Hemabh

Abstract

A sensor may be automatically calibrated during manufacture by providing a sensor processing unit having an integrated sensor, performing a check to determine if the integrated sensor has been previously calibrated upon a reset. When it has been determined the integrated sensor has not been previously calibrated, an automated calibration pattern may be imparted to the sensor so that a calibration parameter is determined.

IPC Classes  ?

  • G01P 13/00 - Indicating or recording presence or absence of movement; Indicating or recording of direction of movement
  • G01S 11/14 - Systems for determining distance or velocity not using reflection or reradiation using ultrasonic, sonic or infrasonic waves
  • G06F 3/033 - Pointing devices displaced or positioned by the user; Accessories therefor
  • G01S 5/18 - Position-fixing by co-ordinating two or more direction or position-line determinations; Position-fixing by co-ordinating two or more distance determinations using ultrasonic, sonic, or infrasonic waves
  • G01D 18/00 - Testing or calibrating apparatus or arrangements provided for in groups
  • G06F 3/038 - Control and interface arrangements therefor, e.g. drivers or device-embedded control circuitry
  • G06F 3/0346 - Pointing devices displaced or positioned by the user; Accessories therefor with detection of the device orientation or free movement in a 3D space, e.g. 3D mice, 6-DOF [six degrees of freedom] pointers using gyroscopes, accelerometers or tilt-sensors
  • G01C 21/16 - Navigation; Navigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
  • G01S 11/16 - Systems for determining distance or velocity not using reflection or reradiation using difference in transit time between electromagnetic and sonic waves
  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • G01S 11/12 - Systems for determining distance or velocity not using reflection or reradiation using electromagnetic waves other than radio waves

38.

ACTUATOR LAYER PATTERNING WITH TOPOGRAPHY

      
Application Number 18115178
Status Pending
Filing Date 2023-02-28
First Publication Date 2023-06-29
Owner InvenSense, Inc. (USA)
Inventor
  • Lee, Daesung
  • Cuthbertson, Alan

Abstract

A method including fusion bonding a handle wafer to a first side of a device wafer. The method further includes depositing a hardmask on a second side of the device wafer, wherein the second side is planar. An etch stop layer is deposited over the hardmask and an exposed portion of the second side of the device wafer. A dielectric layer is formed over the etch stop layer. A via is formed within the dielectric layer. The via is filled with conductive material. A eutectic bond layer is formed over the conductive material. Portions of the dielectric layer uncovered by the eutectic bond layer is etched to expose the etch stop layer. The exposed portions of the etch stop layer is etched. A micro-electro-mechanical system (MEMS) device pattern is etched into the device wafer.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • B81B 7/00 - Microstructural systems

39.

CONSTANT CHARGE OR CAPACITANCE FOR CAPACITIVE MICRO-ELECTRICAL-MECHANICAL SYSTEM SENSORS

      
Application Number US2022053420
Publication Number 2023/122044
Status In Force
Filing Date 2022-12-19
Publication Date 2023-06-29
Owner INVENSENSE, INC. (USA)
Inventor Seeger, Joseph

Abstract

Embodiments for constant charge or capacitance for capacitive micro-electro-mechanical system (MEMS) sensors are presented herein. A MEMS device comprises a sense element circuit comprising a bias resistance, a charge-pump, and a capacitive sense element comprising an electrode and a sense capacitance. The charge-pump generates, at a bias resistor electrically coupled to the electrode, a bias voltage that is inversely proportional to a capacitance value comprising a value of the sense capacitance to facilitate maintenance of a nominally constant charge on the electrode. A sensing circuit comprises an alternating current (AC) signal source that generates an AC signal at a defined frequency; and generates, based on the AC signal, an AC test voltage at a test capacitance that is electrically coupled to the electrode. The sense element circuit generates, based on the AC test voltage at the defined frequency, an output signal representing the value of the sense capacitance.

IPC Classes  ?

40.

MULTI-TEMPERATURE GAS SENSING

      
Application Number 17559839
Status Pending
Filing Date 2021-12-22
First Publication Date 2023-06-22
Owner INVENSENSE, INC. (USA)
Inventor Gurin, Ilya

Abstract

A gas sensor includes a plurality of sensing resistors that vary in resistance based on ambient temperature and the presence of certain gases, such as CO2 and H2O. The responses of each of the sensing resistors vary based on a base temperature of each of the sensing resistors. The base temperatures for each of the sensing resistors and configurations of the sensing resistors are selected to emphasize a response to a gas of interest (e.g., CO2) while de-emphasizing or canceling contributions from ambient temperature and gases that are not of interest (e.g., H2O).

IPC Classes  ?

  • G01N 27/18 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of an electrically-heated body in dependence upon change of temperature caused by changes in the thermal conductivity of a surrounding material to be tested
  • G01N 33/00 - Investigating or analysing materials by specific methods not covered by groups
  • G01K 7/22 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using resistive elements the element being a non-linear resistance, e.g. thermistor
  • H05B 3/20 - Heating elements having extended surface area substantially in a two-dimensional plane, e.g. plate-heater

41.

SYSTEMS AND METHODS FOR CAPTURING STABILIZED IMAGES

      
Application Number 17992801
Status Pending
Filing Date 2022-11-22
First Publication Date 2023-06-22
Owner INVENSENSE, INC. (USA)
Inventor
  • Riccardi, Sebastien
  • Grenet, Pierre
  • Lachaux, Jerome

Abstract

Systems and methods are disclosed for capturing stabilized images. Motion of the mobile device is determined so that the relative position of the lens and image sensor may be adjusted to compensate for unintended motion. The relative position of the lens and image sensor may be periodically reset in response to a synchronization signal in between capturing images.

IPC Classes  ?

42.

SYSTEMS AND METHODS FOR CAPTURING STABILIZED IMAGES

      
Application Number US2022051110
Publication Number 2023/113991
Status In Force
Filing Date 2022-11-28
Publication Date 2023-06-22
Owner INVENSENSE, INC. (USA)
Inventor
  • Riccardi, Sebastien
  • Grenet, Pierre
  • Lachaux, Jerome

Abstract

Systems and methods are disclosed for capturing stabilized images. Motion of the mobile device is determined so that the relative position of the lens and image sensor may be adjusted to compensate for unintended motion. The relative position of the lens and image sensor may be periodically reset in response to a synchronization signal in between capturing images.

IPC Classes  ?

  • H04N 23/68 - Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations

43.

CONSTANT CHARGE OR CAPACITANCE FOR CAPACITIVE MICRO-ELECTRICAL-MECHANICAL SYSTEM SENSORS

      
Application Number 18066802
Status Pending
Filing Date 2022-12-15
First Publication Date 2023-06-22
Owner INVENSENSE, INC. (USA)
Inventor Seeger, Joseph

Abstract

Embodiments for constant charge or capacitance for capacitive micro-electromechanical system (MEMS) sensors are presented herein. A MEMS device comprises a sense element circuit comprising a bias resistance, a charge-pump, and a capacitive sense element comprising an electrode and a sense capacitance. The charge-pump generates, at a bias resistor electrically coupled to the electrode, a bias voltage that is inversely proportional to a capacitance value comprising a value of the sense capacitance to facilitate maintenance of a nominally constant charge on the electrode. A sensing circuit comprises an alternating current (AC) signal source that generates an AC signal at a defined frequency; and generates, based on the AC signal, an AC test voltage at a test capacitance that is electrically coupled to the electrode. The sense element circuit generates, based on the AC test voltage at the defined frequency, an output signal representing the value of the sense capacitance.

IPC Classes  ?

  • B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems (MEMS)
  • H02M 3/07 - Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using resistors or capacitors, e.g. potential divider using capacitors charged and discharged alternately by semiconductor devices with control electrode

44.

MICROELECTROMECHANICAL SYSTEM MICROPHONE ARRAY CAPSULE

      
Application Number 18063374
Status Pending
Filing Date 2022-12-08
First Publication Date 2023-06-15
Owner INVENSENSE, INC. (USA)
Inventor Parker, Jeremy

Abstract

The present invention relates to a microelectromechanical system (MEMS) microphone array capsule. In one embodiment, a MEMS microphone includes a MEMS microphone die; an acoustic sensor array formed into the MEMS microphone die, the acoustic sensor array comprising a plurality of MEMS acoustic sensor elements, wherein respective ones of the plurality of MEMS acoustic sensor elements are tuned to different resonant frequencies; and an interconnect that electrically couples the acoustic sensor array to an impedance converter circuit.

IPC Classes  ?

45.

ROBUST INERTIAL SENSOR SELF-TEST

      
Application Number US2022046594
Publication Number 2023/107195
Status In Force
Filing Date 2022-10-13
Publication Date 2023-06-15
Owner INVENSENSE, INC. (USA)
Inventor Pellegrini, Aurelio

Abstract

An inertial sensor such as a MEMS accelerometer or gyroscope has a proof mass that is driven by a self-test signal, with the response of the proof mass to the self-test signal being used to determine whether the sensor is within specification. The self-test signal is provided as a non-periodic self-test pattern that does not correlate with noise such as environmental vibrations that are also experienced by the proof mass during the self-test procedure. The sense output signal corresponding to the proof mass is correlated with the non-periodic self-test signal, such that an output correlation value corresponds only to the proof mass response to the applied self-test signal.

IPC Classes  ?

  • G01C 19/5776 - Signal processing not specific to any of the devices covered by groups
  • G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
  • G01P 21/00 - Testing or calibrating of apparatus or devices covered by the other groups of this subclass

46.

ROBUST INERTIAL SENSOR SELF-TEST

      
Application Number 17546928
Status Pending
Filing Date 2021-12-09
First Publication Date 2023-06-15
Owner InvenSense, Inc. (USA)
Inventor Pellegrini, Aurelio

Abstract

An inertial sensor such as a MEMS accelerometer or gyroscope has a proof mass that is driven by a self-test signal, with the response of the proof mass to the self-test signal being used to determine whether the sensor is within specification. The self-test signal is provided as a non-periodic self-test pattern that does not correlate with noise such as environmental vibrations that are also experienced by the proof mass during the self-test procedure. The sense output signal corresponding to the proof mass is correlated with the non-periodic self-test signal, such that an output correlation value corresponds only to the proof mass response to the applied self-test signal.

IPC Classes  ?

  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
  • G01P 15/08 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values

47.

HW programmable signal path event-based DSP for sensor mixed signal devices

      
Application Number 17537305
Grant Number 11928507
Status In Force
Filing Date 2021-11-29
First Publication Date 2023-06-01
Grant Date 2024-03-12
Owner InvenSense, Inc. (USA)
Inventor
  • Scorrano, Matteo
  • Giorgetti, Daniele

Abstract

A hardware-programmable digital signal path component for processing events from sensor mixed signal devices. A system includes a mixed signal component and a reconfigurable signal path component. The mixed signal component includes a group of sensor devices and generates one or more events from among the group of sensor devices. The signal path component receives the event(s), and includes a control unit component and a digital signal processor (DSP) component. The control unit component includes a programmable function enable mechanism, and distributes the received event(s) in combination with one or more functions among a set of predefined functions enabled by the programmable function enable mechanism. The DSP component is configured to perform one or more operations associated with the distributed event(s) in accordance with the enabled function(s).

IPC Classes  ?

  • G06F 9/50 - Allocation of resources, e.g. of the central processing unit [CPU]
  • G06F 9/48 - Program initiating; Program switching, e.g. by interrupt

48.

4-POINTS PHASE AND SENSITIVITY ESTIMATION ALGORITHM AND RELATED ARCHITECTURE

      
Application Number 17986598
Status Pending
Filing Date 2022-11-14
First Publication Date 2023-05-25
Owner InvenSense, Inc. (USA)
Inventor
  • Avantaggiati, Vito
  • Pinna, Carlo
  • Mazzarella, Federico

Abstract

An algorithm and architecture for sense transfer function estimation injects one or more test signals from a signal generator into a MEMS gyroscope to detect an output signal (e.g., proof mass output sense signal), including an in-phase (e.g., Coriolis) component and a quadrature component. The in-phase and quadrature components are encoded with reference signals to determine phase and/or gain variation and are processed via a variety of components (e.g., matrix rotation, digital gain, tones demodulator, transfer function errors estimation, etc.) to estimate a sense transfer function of the MEMS (e.g., Hs(fd)) and corresponding phase and/or gain offset of Hs(fd). The in-phase and quadrature components are also compensated for phase and/or gain offset by system components.

IPC Classes  ?

  • G01C 19/5649 - Signal processing
  • G01C 19/5656 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using vibrating bars or beams the devices involving a micromechanical structure
  • G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass

49.

ULTRASONIC CLIFF DETECTION AND DEPTH ESTIMATION USING TILTED SENSORS

      
Application Number 17987304
Status Pending
Filing Date 2022-11-15
First Publication Date 2023-05-18
Owner InvenSense, Inc. (USA)
Inventor
  • Hall, Daniela
  • Lei, Tony
  • Li, Zhongyang
  • Youssef, Joe

Abstract

A robotic cleaning appliance includes a housing to which is coupled a surface treatment item and a sensor assembly with first and second transducers and an acoustic interface. The first sonic transducer transmits sonic signals through an acoustic interface and out of a first acoustic opening toward a surface beneath the robotic cleaning appliance. The sonic signals reflect from the surface as corresponding returned signals received by the second sonic transducer via a second acoustic opening port of the acoustic interface. A first annular ring is defined around the first acoustic opening port and a second annular rings is defined around the second acoustic opening port. The annular ring attenuate direct path echoes between the acoustic opening ports. The first and second acoustic opening ports are coupled the first and sonic transducers, respectively, via first and second horns; and the horns are tilted from orthogonal with the surface.

IPC Classes  ?

  • G01S 7/521 - Constructional features
  • G01S 15/931 - Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
  • B06B 1/02 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy

50.

ULTRASONIC DIRECT ECHO PATH REDUCTION

      
Application Number 17987151
Status Pending
Filing Date 2022-11-15
First Publication Date 2023-05-18
Owner InvenSense, Inc. (USA)
Inventor
  • Lei, Tony
  • Youssef, Joe
  • Hall, Daniela
  • Eovino, Ben
  • Shelton, Stefon

Abstract

A robotic cleaning appliance includes a housing to which is coupled a surface treatment item and a sensor assembly with first and second transducers and an acoustic interface. The first sonic transducer transmits sonic signals through an acoustic interface and out of a first acoustic opening toward a surface beneath the robotic cleaning appliance. The sonic signals reflect from the surface as corresponding returned signals received by the second sonic transducer via a second acoustic opening port of the acoustic interface. A first plurality of annular rings is defined in the external surface around the first acoustic opening port and a second plurality of annular rings is defined in the external surface around the second acoustic opening port. The pluralities of annular rings attenuate direct path echoes from a subset of the transmitted sonic signals which attempt to travel across the external surface to the second acoustic opening port.

IPC Classes  ?

  • G01S 7/521 - Constructional features
  • G05D 1/02 - Control of position or course in two dimensions
  • G01S 15/931 - Sonar systems specially adapted for specific applications for anti-collision purposes of land vehicles
  • G01S 15/08 - Systems for measuring distance only

51.

Inertial sensor sensing of vibration frequency

      
Application Number 17530125
Grant Number 11879906
Status In Force
Filing Date 2021-11-18
First Publication Date 2023-05-18
Grant Date 2024-01-23
Owner InvenSense, Inc. (USA)
Inventor Pellegrini, Aurelio

Abstract

A modified version of a MEMS self-test procedure is presented that can be used to detect the amplitude and frequency of an external vibration from an ambient environment. The method implements processing circuitry that correlates an output sense signal, s(t), with a plurality of periodic signal portions and a plurality of shifted periodic signal portions to generate a plurality of correlation values. A frequency associated with the external vibration is determined based on the plurality of correlation values.

IPC Classes  ?

  • G01P 15/125 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by capacitive pick-up
  • G01C 19/5712 - Turn-sensitive devices using vibrating masses, e.g. vibratory angular rate sensors based on Coriolis forces using masses driven in reciprocating rotary motion about an axis the devices involving a micromechanical structure
  • G01P 1/00 - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT  - Details of instruments
  • G01D 1/08 - Measuring arrangements giving results other than momentary value of variable, of general application giving integrated values by intermittent summation over fixed periods of time
  • G01H 1/14 - Frequency
  • G01D 1/02 - Measuring arrangements giving results other than momentary value of variable, of general application giving mean values, e.g. root mean square values
  • G01D 1/16 - Measuring arrangements giving results other than momentary value of variable, of general application giving a value which is a function of two or more values, e.g. product or ratio

52.

SMARTAUTOMOTIVE

      
Serial Number 97932102
Status Pending
Filing Date 2023-05-11
Owner InvenSense, Inc. ()
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Inertial measurement unit; motion sensors; accelerometers; gyroscopes; magnetometers; pressure sensors; temperature sensors; ultrasonic sensors for measuring acceleration, angle of rotation, pressure, temperature, and distance ranges, all for use in automotive systems, autonomous car systems, advanced driver assisted systems, internet of things applications, and internet of things software development systems; measuring equipment sensors comprising an inertial measurement unit, and high-precision algorithms, all for use in sensor fusion for automotive systems, autonomous car systems, advanced driver assisted systems, internet of things applications, and internet of things software development systems; sensor development kits, namely, kits comprised primarily of computer hardware and downloadable software for use in developing and operating sensors and electronic devices for detecting, transmitting, recognizing, analyzing, and tracking motion, movement, positions, distances, and obstacles; downloadable computer software for integrating drivers for multi-sensor modules for automotive systems, autonomous car systems, advanced driver assisted systems, internet of things software development systems, and internet of things applications

53.

DYNAMIC PROJECTION SYSTEM SUITABLE FOR AUTOMOBILE

      
Application Number 17970413
Status Pending
Filing Date 2022-10-20
First Publication Date 2023-04-27
Owner INVENSENSE, INC (USA)
Inventor
  • Li, Yang
  • Yue, Yunxia
  • Jiang, Tingting
  • Li, Qian

Abstract

Provided is a dynamic projection system suitable for an automobile. The system includes a light source, a collimating lens, a first microlens array, an LCD projection source and a second microlens array, wherein the dynamic projection system further comprises a polarization grating used for separating P-polarized light and S-polarized light, and a wave plate array. The wave plate array includes a plurality of ½ wave plates arranged at intervals. The polarization grating is arranged in front of the first microlens array and the second microlens array, the ½ wave plates and the LCD projection source are arranged between the first microlens array and the second microlens array, and the ½ wave plates are arranged in front of the LCD projection source to play a role in converting one of the P-polarized light and the S-polarized light into the other one of the P-polarized light and the S-polarized light.

IPC Classes  ?

  • G03B 21/20 - Lamp housings
  • G03B 21/00 - Projectors or projection-type viewers; Accessories therefor

54.

SMARTSOUND

      
Application Number 1724447
Status Registered
Filing Date 2023-03-10
Registration Date 2023-03-10
Owner INVENSENSE, INC. (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Acoustic sensors; microphones; downloadable software for use with sensor devices for use in detecting, recognizing, analyzing, monitoring, and controlling sound; sensors for detecting, recognizing, analyzing sound; downloadable software for use with sensor-enabled microphones, headsets, wireless audio devices, smart speakers, mobile devices, wearable mobile technologies, and Internet of things (IoT) devices for capturing and storing sensor data and analytics.

55.

METHOD AND SYSTEM FOR SENSOR CONFIGURATION

      
Application Number 17970143
Status Pending
Filing Date 2022-10-20
First Publication Date 2023-04-13
Owner INVENSENSE, INC (USA)
Inventor
  • Gangumalla, Vamshi
  • Mudoi, Uday
  • Katingari, Karthik
  • Heydari, Mahdi

Abstract

Described herein are methods and systems for controlling a sensor assembly with a plurality of same type sensors. Sensors are operated in active and inactive states. The activation state of at least one of the sensors is changed based on an operational parameter that relates to an environmental condition differentially affecting the plurality of same type sensors.

IPC Classes  ?

  • G01P 15/18 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
  • G01C 19/00 - Gyroscopes; Turn-sensitive devices using vibrating masses; Turn-sensitive devices without moving masses; Measuring angular rate using gyroscopic effects

56.

SMARTINDUSTRIAL

      
Application Number 1723073
Status Registered
Filing Date 2023-03-10
Registration Date 2023-03-10
Owner INVENSENSE, INC. (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Motion sensors; industrial sensors for improving efficiency and monitoring conditions in industrial applications; sensor evaluation kits for motion measurement comprised primarily of electronic sensors and software for use in industrial applications; sensors for determining position, movement, vibration, inclination, and distances; downloadable and recorded software for use with sensors and for monitoring position, movement, vibration, inclination, distances, environmental conditions, and for Internet of Things applications.

57.

USING A HEARABLE TO GENERATE A USER HEALTH INDICATOR BASED ON USER TEMPERATURE

      
Application Number 18073645
Status Pending
Filing Date 2022-12-02
First Publication Date 2023-04-06
Owner InvenSense, Inc. (USA)
Inventor
  • Gurin, Ilya
  • Katingari, Karthik
  • Sauvage, Nicolas
  • Ahmed, Jibran

Abstract

A hearable comprises a wearable structure including a speaker, a sensor, and a temperature compensating circuit which measures temperature in an environment of the sensor. A portion of the wearable structure, which includes the sensor and temperature compensating circuit, is disposed within a user’s ear when in use. A sensor processing unit which is communicatively coupled with the temperature compensating circuit: acquires temperature data from the temperature compensating circuit while the portion of the wearable structure is disposed within the ear of the user; builds a baseline model of normal temperature for the user; and compares a temperature measurement acquired from the temperature compensating circuit to the baseline model. In response to the comparison showing a deviation beyond a preset threshold from the baseline model, the sensor processing unit generates a health indicator for the user which is used to monitor an aspect of health of the user.

IPC Classes  ?

  • A61B 5/00 - Measuring for diagnostic purposes ; Identification of persons
  • A61B 5/01 - Measuring temperature of body parts
  • A61B 10/00 - Other methods or instruments for diagnosis, e.g. for vaccination diagnosis; Sex determination; Ovulation-period determination; Throat striking implements

58.

Systems and methods for operating a mems device based on sensed temperature gradients

      
Application Number 18080169
Grant Number 11738994
Status In Force
Filing Date 2022-12-13
First Publication Date 2023-04-06
Grant Date 2023-08-29
Owner InvenSense, Inc. (USA)
Inventor
  • Dekoninck, David
  • Kumar, Varun Subramaniam
  • Thompson, Matthew Julian
  • Tsinker, Vadim
  • Jayaraman, Logeeswaran Veerayah
  • Nitzan, Sarah
  • Johari-Galle, Houri
  • Shin, Jongwoo
  • Jin, Le

Abstract

An exemplary microelectromechanical device includes a MEMS layer, portions of which respond to an external force in order to measure the external force. A substrate layer is located below the MEMS layer and an anchor couples the substrate layer and MEMS layer to each other. A plurality of temperature sensors are located within the substrate layer to identify a temperature gradient being experienced by the MEMS device. Compensation is performed or operations of the MEMS device are modified based on temperature gradient.

IPC Classes  ?

  • G01L 19/04 - Means for compensating for effects of changes of temperature
  • G01K 1/20 - Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
  • B81B 7/00 - Microstructural systems
  • G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means

59.

Sensor with dimple features and improved out-of-plane stiction

      
Application Number 18071322
Grant Number 11919769
Status In Force
Filing Date 2022-11-29
First Publication Date 2023-03-30
Grant Date 2024-03-05
Owner InvenSense, Inc. (USA)
Inventor
  • Uddin, Ashfaque
  • Lee, Daesung
  • Cuthbertson, Alan

Abstract

A method includes fusion bonding a handle wafer to a first side of a device wafer. The method further includes depositing a first mask on a second side of the device wafer, wherein the second side is planar. A plurality of dimple features is formed on an exposed portion on the second side of the device wafer. The first mask is removed from the second side of the device wafer. A second mask is deposited on the second side of the device wafer that corresponds to a standoff. An exposed portion on the second side of the device wafer is etched to form the standoff. The second mask is removed. A rough polysilicon layer is deposited on the second side of the device wafer. A eutectic bond layer is deposited on the standoff. In some embodiments, a micro-electro-mechanical system (MEMS) device pattern is etched into the device wafer.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • B81B 7/00 - Microstructural systems

60.

IMPROVING MOTION SENSOR ROBUSTNESS UTILIZING A ROOM-TEMPERATURE-VOLCANIZING MATERIAL VIA A SOLDER RESIST DAM

      
Application Number US2022034197
Publication Number 2023/048788
Status In Force
Filing Date 2022-06-20
Publication Date 2023-03-30
Owner INVENSENSE, INC. (USA)
Inventor
  • Lacap, Efren
  • Vujosevic, Milena

Abstract

Improving motion sensor robustness utilizing a room-temperature-volcanizing (RTV) material via a solder resist dam is presented herein. A sensor package comprises: a first semiconductor die; a second semiconductor die that is attached to the first semiconductor die to form a monolithic die; and a substrate comprising a top portion and a bottom portion, in which the top portion comprises a plurality of solder resist dams, the monolithic die is attached to the top portion of the substrate via the RTV material being disposed in a defined area of the top portion of the substrate, and the bottom portion of the substrate comprises electrical terminals that facilitate attachment and electrical coupling of signals of the sensor package to a printed circuit board.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

61.

Waterproof MEMS Pressure Sensor Package With A Metal Lid And An Embedded ePTFE Filter And Process Of Making

      
Application Number 17733720
Status Pending
Filing Date 2022-04-29
First Publication Date 2023-03-23
Owner InvenSense, Inc. (USA)
Inventor
  • Brioschi, Roberto
  • Wakharkar, Vijay
  • Sharma, Monisha

Abstract

Microelectromechanical system (MEMS) packages and methods of making thereof. A MEMS package includes at least one MEMS device disposed on a base substrate and a lid disposed on the base substrate. The lid is configured to enclose the at least one MEMS device. The lid includes a body portion configured to be coupled to the base substrate, a ceiling portion and a membrane. The ceiling portion, the body portion and the ceiling portion form a cavity in which the at least one MEMS device is enclosed. The membrane is configured to be in contact with the ceiling portion. The membrane is formed from a filtering fabric and is configured to substantially block one or more of liquids and contaminants from passing into the cavity.

IPC Classes  ?

  • B81B 7/00 - Microstructural systems
  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa

62.

MOTION SENSOR ROBUSTNESS UTILIZING A ROOM-TEMPERATURE-VOLCANIZING MATERIAL VIA A SOLDER RESIST DAM

      
Application Number 17737582
Status Pending
Filing Date 2022-05-05
First Publication Date 2023-03-23
Owner INVENSENSE, INC. (USA)
Inventor
  • Lacap, Efren
  • Vujosevic, Milena

Abstract

Improving motion sensor robustness utilizing a room-temperature-volcanizing (RTV) material via a solder resist dam is presented herein. A sensor package comprises: a first semiconductor die; a second semiconductor die that is attached to the first semiconductor die to form a monolithic die; and a substrate comprising a top portion and a bottom portion, in which the top portion comprises a plurality of solder resist dams, the monolithic die is attached to the top portion of the substrate via the RTV material being disposed in a defined area of the top portion of the substrate, and the bottom portion of the substrate comprises electrical terminals that facilitate attachment and electrical coupling of signals of the sensor package to a printed circuit board.

IPC Classes  ?

  • H01L 23/498 - Leads on insulating substrates
  • H01L 23/36 - Selection of materials, or shaping, to facilitate cooling or heating, e.g. heat sinks

63.

PRESSURE SENSOR WITH HIGH STABILITY

      
Application Number 17950007
Status Pending
Filing Date 2022-09-21
First Publication Date 2023-03-23
Owner InvenSense, Inc. (USA)
Inventor
  • Su, Weng Shen
  • Lin, Chung-Hsien
  • Wang, Yaoching
  • Tang, Tsung Lin
  • Liu, Ting-Yuan
  • Miclaus, Calin

Abstract

A method includes depositing a passivation layer on a substrate; depositing and patterning a first polysilicon layer on the passivation layer; depositing and patterning a first oxide layer on the first polysilicon layer forming a patterned first oxide layer; depositing and patterning a second polysilicon layer on the patterned first oxide layer. A portion of the second polysilicon layer directly contacts a portion of the first polysilicon layer. A portion of the patterned second polysilicon layer corresponds to a bottom electrode. A second oxide layer is deposited on the patterned second polysilicon layer and on an exposed portion of the patterned first oxide layer. A portion of the second oxide layer corresponding to a sensing cavity is etched, exposing the bottom electrode. Another substrate is bonded to the second oxide layer enclosing the sensing cavity. A top electrode is disposed within the another substrate and positioned over the bottom electrode.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes

64.

WATERPROOF MEMS PRESSURE SENSOR PACKAGE WITH A METAL LID AND AN EMBEDDED ePTFE FILTER AND PROCESS OF MAKING

      
Application Number US2022041427
Publication Number 2023/043596
Status In Force
Filing Date 2022-08-24
Publication Date 2023-03-23
Owner INVENSENSE, INC. (USA)
Inventor
  • Brioschi, Roberto
  • Wakharkar, Vijay
  • Sharma, Monisha

Abstract

Microelectromechanical system (MEMS) packages and methods of making thereof. A MEMS package includes at least one MEMS device disposed on a base substrate and a lid disposed on the base substrate. The lid is configured to enclose the at least one MEMS device. The lid includes a body portion configured to be coupled to the base substrate, a ceiling portion and a membrane. The body portion and the ceiling portion form a cavity in which the at least one MEMS device is enclosed. The membrane is formed from a filtering fabric and is configured to substantially block one or more liquids and contaminants from passing into the cavity.

IPC Classes  ?

  • G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
  • G01L 19/14 - Housings
  • B81B 7/00 - Microstructural systems

65.

PRESSURE SENSOR WITH HIGH STABILITY

      
Application Number 17899395
Status Pending
Filing Date 2022-08-30
First Publication Date 2023-03-23
Owner InvenSense, Inc. (USA)
Inventor
  • Tang, Tsung Lin
  • Lin, Chung-Hsien
  • Liu, Ting-Yuan
  • Su, Weng Shen
  • Wang, Yaoching

Abstract

A pressure sensor comprises a polysilicon sensing membrane. The pressure sensor further includes one or more polysilicon electrodes disposed over a silicon substrate. The sensor also includes one or more polysilicon routing layers that electrically connects electrodes of the one or more polysilicon electrodes to one another, wherein the polysilicon sensing membrane deforms responsive to a stimuli and changes a capacitance between the polysilicon sensing membrane and the one or more polysilicon electrodes. The sensor also includes one or more vacuum cavities positioned between the polysilicon sensing membrane and the one or more polysilicon electrodes.

IPC Classes  ?

  • G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
  • G01L 9/12 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means by making use of variations in capacitance

66.

Machine learning glitch prediction

      
Application Number 17664114
Grant Number 11888455
Status In Force
Filing Date 2022-05-19
First Publication Date 2023-03-16
Grant Date 2024-01-30
Owner INVENSENSE, INC. (USA)
Inventor
  • Valle, Stefano
  • Magnani, Alessandro
  • Trotta, Pascal

Abstract

Disclosed embodiments provide glitch prediction based on machine learning algorithms in mixed analog and digital systems, particularly directed to digital microelectromechanical (MEMS) multipath acoustic sensors or microphones, which allow seamless, low latency gain changes without audible artifacts or interruptions in the audio output signal.

IPC Classes  ?

  • H03G 3/34 - Muting amplifier when no signal is present
  • H04R 3/00 - Circuits for transducers
  • H03G 3/30 - Automatic control in amplifiers having semiconductor devices
  • H04R 19/04 - Microphones
  • G06N 3/08 - Learning methods
  • H04R 1/04 - Structural association of microphone with electric circuitry therefor

67.

GAZE TRACKING FOR A RETINAL PROJECTION DISPLAY SYSTEM

      
Application Number US2022075597
Publication Number 2023/034752
Status In Force
Filing Date 2022-08-29
Publication Date 2023-03-09
Owner INVENSENSE, INC. (USA)
Inventor
  • Heshmati, Ardalan
  • Fukuzawa, Hideaki

Abstract

A retinal projection display system includes at least one visible light source for projecting a visible light image, an infrared light source for projecting infrared light, a scanning mirror having a field of view larger than the visible light image, a reflective surface on which the visible light image is projected and on which the infrared light is reflected at least partially towards an eye of a user, wherein the reflective surface is larger than the visible light image, at least one infrared photodetector for receiving reflected infrared light that reflects off of the eye of the user, and a hardware computation module comprising a processor and a memory, the hardware computation module configured to determine a gaze direction of the user based at least in part on the reflected infrared light.

IPC Classes  ?

68.

SMARTROBOTICS

      
Serial Number 97822132
Status Registered
Filing Date 2023-03-03
Registration Date 2024-01-23
Owner InvenSense, Inc. ()
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Downloadable computer software for integrating drivers for multi-sensor modules for internet of things software development systems and internet of things applications; measuring equipment sensors comprising inertial measurement unit, magnetometer, pressure sensor, microphone, temperature sensor, ultrasonic sensor for measuring acceleration, angle of rotation, pressure, temperature, sound, and distance ranges for use in internet of things applications and internet of things software development systems; measuring equipment sensors comprising an inertial measurement unit, magnetometer, pressure sensor, temperature sensor, ultrasonic sensor, microphone, passive components, and high-precision algorithms for use in sensor fusion and internet of things applications, industrial, drone, and automotive applications, and internet of things software development systems

69.

SMARTSONIC

      
Application Number 1716052
Status Registered
Filing Date 2023-01-25
Registration Date 2023-01-25
Owner INVENSENSE, INC. (USA)
NICE Classes  ? 09 - Scientific and electric apparatus and instruments

Goods & Services

Ultrasonic sensors; ultrasonic time-of-flight sensors; Internet of Things (IoT) sensors; sensor development kits, namely, kits comprised primarily of computer hardware and downloadable software for use in developing and operating sensors and electronic devices for detecting, transmitting, recognizing, analyzing, and tracking motion, movement, positions, distances, obstacles, sounds, ultrasonic signal, and ultrasonic range sensing.

70.

DIFFERENTIAL RECEIVE AT AN ULTRASONIC TRANSDUCER

      
Application Number 17822116
Status Pending
Filing Date 2022-08-24
First Publication Date 2023-03-02
Owner InvenSense, Inc. (USA)
Inventor
  • Baldasarre, Leonardo
  • Colombo, Alessandro
  • Confalonieri, Federica
  • Travagliati, Marco

Abstract

An ultrasonic transducer device including a substrate, an edge support structure connected to the substrate, and a membrane connected to the edge support structure such that a cavity is defined between the membrane and the substrate, the membrane configured to allow movement at ultrasonic frequencies. The membrane includes a structural layer, a piezoelectric layer having a first surface and a second surface, a first electrode placed on the first surface of the piezoelectric layer, wherein the first electrode is located at the center of the membrane, a second electrode placed on the first surface of the piezoelectric layer, wherein the second electrode is a patterned electrode comprising more than one electrode components that are electrically coupled, and a third electrode coupled to the second surface of the piezoelectric layer and electrically coupled to ground.

IPC Classes  ?

  • A61B 8/00 - Diagnosis using ultrasonic, sonic or infrasonic waves
  • B06B 1/02 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy

71.

GAZE TRACKING FOR A RETINAL PROJECTION DISPLAY SYSTEM

      
Application Number 17822619
Status Pending
Filing Date 2022-08-26
First Publication Date 2023-03-02
Owner INVENSENSE, INC. (USA)
Inventor
  • Heshmati, Ardalan
  • Fukuzawa, Hideaki

Abstract

A retinal projection display system includes at least one visible light source for projecting a visible light image, an infrared light source for projecting infrared light, a scanning mirror having a field of view larger than the visible light image, a reflective surface on which the visible light image is projected and on which the infrared light is reflected at least partially towards an eye of a user, wherein the reflective surface is larger than the visible light image, at least one infrared photodetector for receiving reflected infrared light that reflects off of the eye of the user, and a hardware computation module comprising a processor and a memory, the hardware computation module configured to determine a gaze direction of the user based at least in part on the reflected infrared light.

IPC Classes  ?

  • G06F 3/01 - Input arrangements or combined input and output arrangements for interaction between user and computer
  • G02B 27/01 - Head-up displays
  • G02B 26/10 - Scanning systems
  • G02B 26/08 - Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light

72.

DIFFERENTIAL RECEIVE AT AN ULTRASONIC TRANSDUCER

      
Application Number US2022075468
Publication Number 2023/028562
Status In Force
Filing Date 2022-08-25
Publication Date 2023-03-02
Owner INVENSENSE, INC. (USA)
Inventor
  • Baldasarre, Leonardo
  • Colombo, Alessandro
  • Confalonieri, Federica
  • Travagliati, Marco

Abstract

An ultrasonic transducer device including a substrate, an edge support structure connected to the substrate, and a membrane connected to the edge support structure such that a cavity is defined between the membrane and the substrate, the membrane configured to allow movement at ultrasonic frequencies. The membrane includes a structural layer, a piezoelectric layer having a first surface and a second surface, a first electrode placed on the first surface of the piezoelectric layer, wherein the first electrode is located at the center of the membrane, a second electrode placed on the first surface of the piezoelectric layer, wherein the second electrode is a patterned electrode comprising more than one electrode components that are electrically coupled, and a third electrode coupled to the second surface of the piezoelectric layer and electrically coupled to ground.

IPC Classes  ?

  • B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
  • H01L 41/047 - Electrodes
  • G01H 11/08 - Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties by electric means using piezoelectric devices

73.

ANCHOR CONFIGURATIONS FOR AN ARRAY OF ULTRASONIC TRANSDUCERS

      
Application Number 17822127
Status Pending
Filing Date 2022-08-24
First Publication Date 2023-03-02
Owner INVENSENSE, INC. (USA)
Inventor
  • Baldasarre, Leonardo
  • Colombo, Alessandro
  • Confalonieri, Federica
  • Travagliati, Marco

Abstract

An ultrasonic transducer array including a substrate, a membrane overlying the substrate, the membrane configured to allow movement at ultrasonic frequencies, and a plurality of anchors connected to the substrate and connected to the membrane. The membrane includes a piezoelectric layer, a plurality of first electrodes, and a plurality of second electrodes, wherein each ultrasonic transducer of a plurality of ultrasonic transducers includes at least a first electrode and at least a second electrode. The plurality of anchors includes a first anchor including a first electrical connection for electrically coupling at least one first electrode to control circuitry and a second anchor including a second electrical connection for electrically coupling at least one second electrode. The ultrasonic transducer array could be either a two-dimensional array or a one-dimensional array of ultrasonic transducers.

IPC Classes  ?

  • G06F 3/043 - Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using propagating acoustic waves
  • G06V 40/13 - Sensors therefor

74.

RETINAL PROJECTION DISPLAY SYSTEM

      
Application Number 17820876
Status Pending
Filing Date 2022-08-18
First Publication Date 2023-02-23
Owner INVENSENSE, INC. (USA)
Inventor
  • Heshmati, Ardalan
  • Fukuzawa, Hideaki

Abstract

A retinal projection display system includes a light source for projecting an image, a scanning mirror having a field of view larger than the image, and a reflective surface on which the image is projected, wherein the reflective surface is larger than the image. The scanning mirror projects the image onto a viewable region of the reflective surface such that the image is projected into a retina of a user.

IPC Classes  ?

75.

Acoustic activity detection

      
Application Number 17396105
Grant Number 11758334
Status In Force
Filing Date 2021-08-06
First Publication Date 2023-02-16
Grant Date 2023-09-12
Owner INVENSENSE, INC. (USA)
Inventor
  • Pitak, Tomas
  • Mucha, Igor
  • Dick, Robert
  • Tuttle, Michael

Abstract

Acoustic activity detection is provided herein. Operations of a method can include receiving an acoustic signal at a micro-electromechanical system (MEMS) microphone. Based on portions of the acoustic signal being determined to exceed a threshold signal level, output pulses are generated. Further, the method can include extracting information representative of a frequency of the acoustic signal based on respective spacing between rising edges of the output pulses.

IPC Classes  ?

76.

METHOD AND SYSTEM FOR FABRICATING A MEMS DEVICE

      
Application Number 17877089
Status Pending
Filing Date 2022-07-29
First Publication Date 2023-02-09
Owner InvenSense, Inc. (USA)
Inventor
  • Lee, Daesung
  • Cuthbertson, Alan

Abstract

A method includes forming a bumpstop from a first intermetal dielectric (IMD) layer and forming a via within the first IMD, wherein the first IMD is disposed over a first polysilicon layer, and wherein the first polysilicon layer is disposed over another IMD layer that is disposed over a substrate. The method further includes depositing a second polysilicon layer over the bumpstop and further over the via to connect to the first polysilicon layer. A standoff is formed over a first portion of the second polysilicon layer, and wherein a second portion of the second polysilicon layer is exposed. The method includes depositing a bond layer over the standoff.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

77.

METHOD AND SYSTEM FOR FABRICATING A MEMS DEVICE

      
Application Number 17877151
Status Pending
Filing Date 2022-07-29
First Publication Date 2023-02-09
Owner InvenSense, Inc. (USA)
Inventor
  • Lee, Daesung
  • Cuthbertson, Alan

Abstract

A device includes a substrate and an intermetal dielectric (IMD) layer disposed over the substrate. The device also includes a first plurality of polysilicon layers disposed over the IMD layer and over a bumpstop. The device also includes a second plurality of polysilicon layers disposed within the IMD layer. The device includes a patterned actuator layer with a first side and a second side, wherein the first side of the patterned actuator layer is lined with a polysilicon layer, and wherein the first side of the patterned actuator layer faces the bumpstop. The device further includes a standoff formed over the IMD layer, a via through the standoff making electrical contact with the polysilicon layer of the actuator and a portion of the second plurality of polysilicon layers and a bond material disposed on the second side of the patterned actuator layer.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

78.

METHOD AND SYSTEM FOR FABRICATING A MEMS DEVICE CAP

      
Application Number 17877207
Status Pending
Filing Date 2022-07-29
First Publication Date 2023-02-09
Owner InvenSense, Inc. (USA)
Inventor
  • Lee, Daesung
  • Cuthbertson, Alan

Abstract

A device includes a substrate comprising a first standoff, a second standoff, a third standoff, a first cavity, a second cavity, and a bonding material covering a portion of the first, the second, and the third standoff. The first cavity is positioned between the first and the second standoffs, and the second cavity is positioned between the second and the third standoffs. The first cavity comprises a first cavity region and a second cavity region separated by a portion of the substrate extruding thereto, and wherein a depth associated with the first cavity region is greater than a depth associated with the second cavity. A surface of the first cavity is covered with a getter material.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
  • B81B 7/00 - Microstructural systems

79.

METHOD AND SYSTEM FOR FABRICATING A MEMS DEVICE

      
Application Number US2022038835
Publication Number 2023/014599
Status In Force
Filing Date 2022-07-29
Publication Date 2023-02-09
Owner INVENSENSE, INC. (USA)
Inventor
  • Lee, Daesung
  • Cuthbertson, Alan

Abstract

A method includes forming a bumpstop from a first intermetal dielectric (IMD) layer and forming a via within the first IMD, wherein the first IMD is disposed over a first polysilicon layer, and wherein the first polysilicon layer is disposed over another IMD layer that is disposed over a substrate. The method further includes depositing a second polysilicon layer over the bumpstop and further over the via to connect to the first polysilicon layer. A standoff is formed over a first portion of the second polysilicon layer, and wherein a second portion of the second polysilicon layer is exposed. The method includes depositing a bond layer over the standoff.

IPC Classes  ?

  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes

80.

METHOD AND SYSTEM FOR FABRICATING A MEMS DEVICE CAP

      
Application Number US2022038861
Publication Number 2023/014606
Status In Force
Filing Date 2022-07-29
Publication Date 2023-02-09
Owner INVENSENSE, INC. (USA)
Inventor
  • Lee, Daesung
  • Cuthbertson, Alan

Abstract

A device includes a substrate comprising a first standoff, a second standoff, a third standoff, a first cavity, a second cavity, and a bonding material covering a portion of the first, the second, and the third standoff. The first cavity is positioned between the first and the second standoffs, and the second cavity is positioned between the second and the third standoffs. The first cavity comprises a first cavity region and a second cavity region separated by a portion of the substrate extruding thereto, and wherein a depth associated with the first cavity region is greater than a depth associated with the second cavity. A surface of the first cavity is covered with a getter material.

IPC Classes  ?

  • B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems (MEMS)
  • B81B 7/00 - Microstructural systems
  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

81.

METHODS OF ATTITUDE AND MISALIGNMENT ESTIMATION FOR CONSTRAINT FREE PORTABLE NAVIGATION

      
Application Number 17956163
Status Pending
Filing Date 2022-09-29
First Publication Date 2023-02-09
Owner INVENSENSE, INC. (USA)
Inventor
  • Georgy, Jacques
  • Syed, Zainab
  • Goodall, Christopher
  • Atia, Mohamed
  • Noureldin, Aboelmagd
  • El-Sheimy, Naser

Abstract

The present disclosure relates to methods of enhancing a navigation solution about a device and a platform, wherein the mobility of the device may be constrained or unconstrained within the platform, and wherein the navigation solution is provided even in the absence of normal navigational information updates (such as, for example, GNSS). More specifically, the present method comprises utilizing measurements from sensors (e.g. accelerometers, gyroscopes, magnetometers etc.) within the device to calculate and resolve the attitude of the device and the platform, and the attitude misalignment between the device and the platform.

IPC Classes  ?

  • G01C 21/16 - Navigation; Navigational instruments not provided for in groups by using measurement of speed or acceleration executed aboard the object being navigated; Dead reckoning by integrating acceleration or speed, i.e. inertial navigation
  • G01C 25/00 - Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
  • G01C 21/20 - Instruments for performing navigational calculations

82.

ACOUSTIC ACTIVITY DETECTION

      
Application Number US2022030494
Publication Number 2023/014419
Status In Force
Filing Date 2022-05-23
Publication Date 2023-02-09
Owner INVENSENSE, INC. (USA)
Inventor
  • Pitak, Tomas
  • Mucha, Igor
  • Dick, Robert
  • Tuttle, Michael

Abstract

Acoustic activity detection is provided herein. Operations of a method can include receiving an acoustic signal at a micro-electromechanical system (MEMS) microphone. Based on portions of the acoustic signal being determined to exceed a threshold signal level, output pulses are generated. Further, the method includes extracting information representative of a frequency of the acoustic signal based on respective spacing between rising edges of the output pulses.

IPC Classes  ?

  • H04R 3/00 - Circuits for transducers
  • H04R 29/00 - Monitoring arrangements; Testing arrangements
  • G10L 25/78 - Detection of presence or absence of voice signals

83.

METHOD AND SYSTEM FOR FABRICATING A MEMS DEVICE

      
Application Number US2022038850
Publication Number 2023/014603
Status In Force
Filing Date 2022-07-29
Publication Date 2023-02-09
Owner INVENSENSE, INC. (USA)
Inventor
  • Lee, Daesung
  • Cuthbertson, Alan

Abstract

A device includes a substrate and an intermetal dielectric (IMD) layer disposed over the substrate. The device also includes a first plurality of polysilicon layers disposed over the IMD layer and over a bumpstop. The device also includes a second plurality of polysilicon layers disposed within the IMD layer. The device includes a patterned actuator layer with a first side and a second side, wherein the first side of the patterned actuator layer is lined with a polysilicon layer, and wherein the first side of the patterned actuator layer faces the bumpstop. The device further includes a standoff formed over the IMD layer, a via through the standoff making electrical contact with the polysilicon layer of the actuator and a portion of the second plurality of polysilicon layers and a bond material disposed on the second side of the patterned actuator layer.

IPC Classes  ?

  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes

84.

Liquid detection in a sensor environment and remedial action thereof

      
Application Number 17964501
Grant Number 11768122
Status In Force
Filing Date 2022-10-12
First Publication Date 2023-02-02
Grant Date 2023-09-26
Owner InvenSense, Inc. (USA)
Inventor
  • Miclaus, Calin
  • Lin, Chung-Hsien
  • Ren, Jye
  • Piessens, Tim
  • Yen, Pei-Wen
  • Sharma-Kulamarva, Manish

Abstract

A device includes a housing unit with an internal volume. The device further includes a sensor coupled to a substrate via an electrical coupling, wherein the sensor is disposed within the internal volume of the housing unit, and wherein the sensor is in communication with an external environment of the housing unit from a side other than a side associated with the substrate. The device also includes a moisture detection unit electrically coupled to the sensor, wherein the moisture detection unit comprises at least two looped wires at different heights, and wherein the moisture detection unit is configured to detect presence of a moisture within an interior environment of the housing unit when the moisture detection unit becomes in direct contact with the moisture.

IPC Classes  ?

  • G01N 25/56 - Investigating or analysing materials by the use of thermal means by investigating moisture content
  • G01N 27/12 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance of a solid body in dependence upon reaction with a fluid
  • G01L 19/06 - Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
  • G01L 19/00 - MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE - Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
  • G01L 9/00 - Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
  • G01N 27/22 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
  • G01N 27/04 - Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance

85.

SENSOR SIGNAL MULTIPLEXER AND DIGITIZER WITH ANALOG NOTCH FILTER AND OPTIMIZED SAMPLE FREQUENCY

      
Application Number 17654325
Status Pending
Filing Date 2022-03-10
First Publication Date 2023-02-02
Owner INVENSENSE, INC. (USA)
Inventor
  • Pinna, Carlo
  • Mazzarella, Federico
  • Gardino, Daniele
  • Marra, Cristiano Rocco
  • Lazzarini, Francesco

Abstract

The described technology is generally directed towards a sensor signal multiplexer and digitizer with analog notch filter and optimized sample frequency, and corresponding methods of use and manufacture. In some examples, the disclosed technologies can be used to reduce vibration sensitivity of an inertial measurement unit (IMU). The disclosed sensor signal multiplexer can sample sensor inputs on multiple input channels at a first, higher frequency, and integrate samples for each channel in order to generate lower frequency sensor outputs. The lower frequency sensor outputs can be converted to digital form.

IPC Classes  ?

  • H04B 1/10 - Means associated with receiver for limiting or suppressing noise or interference
  • H04B 1/00 - TRANSMISSION - Details of transmission systems not characterised by the medium used for transmission

86.

METHOD AND SYSTEM FOR DETERMINING HINGE ANGLE

      
Application Number 17867969
Status Pending
Filing Date 2022-07-19
First Publication Date 2023-01-26
Owner INVENSENSE, INC (USA)
Inventor
  • Youssef, Joe
  • Flament, Bruno

Abstract

Described herein are methods and systems for determining a relative position of different portions of a hinged device. Motion sensor data from sensor assemblies of each portion is fused to relate the device portions to a world frame. An angular orientation between the device portions is determined with respect to the hinge axis and accumulating sensor measurement errors are compensated by constraining determined axes of the sensor assemblies using the motion sensor data and known relationships between physical axes of the sensor assemblies and the mechanical hinge, such that the determined axes of the sensor assemblies are aligned along the hinge axis.

IPC Classes  ?

  • G06F 1/16 - Constructional details or arrangements

87.

INTERLEAVED CIC FILTER

      
Application Number 17379089
Status Pending
Filing Date 2021-07-19
First Publication Date 2023-01-19
Owner INVENSENSE, INC. (USA)
Inventor Cappello, Stefano

Abstract

An interleaved cascaded integrator-comb (“CIC”) filter receives an interleaved sensor output signal, including a plurality of digitized sensor signals at an input clock rate. An integrator of the interleaved CIC filter processes the interleaved signal to output an integrated interleaved signal. A downsampler of the interleaved CIC filter buffers portions of the integrated interleaved corresponding to a decimation rate for the interleaved signal. The portions of the signals are provided to a comb filter, which outputs a decimated interleaved signal.

IPC Classes  ?

  • H03H 17/06 - Non-recursive filters
  • H03H 17/02 - Frequency-selective networks
  • H03M 3/00 - Conversion of analogue values to or from differential modulation

88.

Applying a positive feedback voltage to an electromechanical sensor utilizing a voltage-to-voltage converter to facilitate a reduction of charge flow in such sensor representing spring softening

      
Application Number 17894077
Grant Number 11835538
Status In Force
Filing Date 2022-08-23
First Publication Date 2022-12-29
Grant Date 2023-12-05
Owner INVENSENSE, INC. (USA)
Inventor
  • Seeger, Joseph
  • Shettigar, Pradeep

Abstract

Reducing a sensitivity of an electromechanical sensor is presented herein. The electromechanical sensor comprises a sensitivity with respect to a variation of a mechanical-to-electrical gain of a sense element of the electromechanical sensor; and a voltage-to-voltage converter component that minimizes the sensitivity by coupling, via a defined feedback capacitance, a positive feedback voltage to a sense electrode of the sense element—the sense element electrically coupled to an input of the voltage-to-voltage converter component. In one example, the voltage-to-voltage converter component minimizes the sensitivity by maintaining, via the defined feedback capacitance, a constant charge at the sense electrode. In another example, the electromechanical sensor comprises a capacitive sense element comprising a first node comprising the sense electrode. Further, a bias voltage component can apply a bias voltage to a second node of the electromechanical sensor. In yet another example, the electromechanical sensor comprises a piezoelectric sense element.

IPC Classes  ?

  • G01P 15/125 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values by capacitive pick-up
  • G01P 1/00 - MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION OR SHOCK; INDICATING PRESENCE OR ABSENCE OF MOVEMENT;  INDICATING DIRECTION OF MOVEMENT  - Details of instruments
  • G01P 15/00 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
  • H03F 3/45 - Differential amplifiers

89.

Discrimination of light interference in a MEMS microphone

      
Application Number 17898352
Grant Number 11743667
Status In Force
Filing Date 2022-08-29
First Publication Date 2022-12-29
Grant Date 2023-08-29
Owner InvenSense, Inc. (USA)
Inventor Svajda, Miroslav

Abstract

A microelectromechanical system (MEMS) microphone includes a cavity to receive an acoustic signal. The acoustic signal causes movement of a diaphragm relative to one or more other surfaces, which in turn results in an electrical signal representative of the received acoustic signal. A light sensor is included within the packaging of the MEMS microphone such that an output of the light sensor is representative of a light signal received with the acoustic signal. The output of the light sensor is used to modify the electrical signal representative of the received acoustic signal in a manner that limits light interference with an acoustical output signal.

IPC Classes  ?

  • H04R 29/00 - Monitoring arrangements; Testing arrangements
  • H03F 3/183 - Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
  • H04R 1/04 - Structural association of microphone with electric circuitry therefor
  • H04R 3/00 - Circuits for transducers
  • H04R 7/04 - Plane diaphragms
  • H04R 19/04 - Microphones

90.

ELECTRICAL CURRENT BASED TEMPERATURE SENSOR AND TEMPERATURE INFORMATION DIGITIZER

      
Application Number 17359866
Status Pending
Filing Date 2021-06-28
First Publication Date 2022-12-29
Owner INVENSENSE, INC. (USA)
Inventor
  • Gardino, Daniele
  • Folz, Michele
  • Aprile, Antonio
  • Malcovati, Piero
  • Boi, Raffaele
  • Bonizzoni, Edoardo

Abstract

The described technology is generally directed towards an electrical current based temperature sensor and temperature information digitizer, referred to herein as a “temperature digitizer”. The temperature digitizer can include a sensor core, a digital to analog converter, a current comparator, and a processor. The processor can be configured to perform multiple current comparisons using the sensor core, digital to analog converter, and current comparator, and the processor can generate a digital code that reflects the results of the multiple current comparisons. The digital code represents the temperature.

IPC Classes  ?

  • G01K 7/01 - Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat using semiconducting elements having PN junctions

91.

Sensor linearization based upon correction of static and frequency-dependent non-linearities

      
Application Number 17344525
Grant Number 11619492
Status In Force
Filing Date 2021-06-10
First Publication Date 2022-12-15
Grant Date 2023-04-04
Owner InvenSense, Inc. (USA)
Inventor Avantaggiati, Vito

Abstract

Methods and systems for compensation of a microelectromechanical system (MEMS) sensor may include associating test temperature values with input test signal values, identifying temperature-input signal pairs, and applying one of the test temperature values and one of the test signal values to the MEMS sensor. Desired output signal values may be determined, with each of the desired output signal values corresponding to one of the applied temperature-input signal pairs. Measured output signal values from the MEMS sensor may be measured, with each of the measured output signal values corresponding to one of the applied temperature-input signal pairs. Compensation terms may be determined based on the plurality of temperature-input signal pairs, the corresponding plurality of measured output signal values, and the corresponding plurality of desired output signal values. Compensation terms may be used to modify a sense signal of the MEMS sensor.

IPC Classes  ?

  • G01C 19/5776 - Signal processing not specific to any of the devices covered by groups
  • G01P 15/08 - Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces with conversion into electric or magnetic values

92.

MEMS STRESS REDUCTION STRUCTURE EMBEDDED INTO PACKAGE

      
Application Number US2022025405
Publication Number 2022/260760
Status In Force
Filing Date 2022-04-19
Publication Date 2022-12-15
Owner INVENSENSE, INC. (USA)
Inventor
  • Brioschi, Roberto
  • Bazehhour, Benyamin Gholami
  • Vujosevic, Milena
  • Hayata, Kazunori

Abstract

A microelectromechanical system (MEMS) sensor package includes a laminate that provides physical support and electrical connection to a MEMS sensor. A resin layer is embedded within an opening of the laminate and a MEMS support layer is embedded within the opening by the resin layer. A MEMS structure of the MEMS sensor is located on the upper surface of the MEMS support layer.

IPC Classes  ?

93.

MICROPHONE WITH FLEXIBLE PERFORMANCE

      
Application Number 17821549
Status Pending
Filing Date 2022-08-23
First Publication Date 2022-12-15
Owner INVENSENSE, INC. (USA)
Inventor
  • Valle, Stefano
  • Mucha, Igor
  • Magnani, Alessandro

Abstract

Disclosed embodiments provide flexible performance, high dynamic range, microelectromechanical (MEMS) multipath digital microphones, which allow seamless, low latency transitions between audio signal paths without audible artifacts over interruptions in the audio output signal. Disclosed embodiments facilitate performance and power saving mode transitions maintaining high dynamic range capability.

IPC Classes  ?

94.

MEMS stress reduction structure embedded into package

      
Application Number 17343919
Grant Number 11760627
Status In Force
Filing Date 2021-06-10
First Publication Date 2022-12-15
Grant Date 2023-09-19
Owner InvenSense, Inc. (USA)
Inventor
  • Brioschi, Roberto
  • Bazehhour, Benyamin Gholami
  • Vujosevic, Milena
  • Hayata, Kazunori

Abstract

A microelectromechanical system (MEMS) sensor package includes a laminate that provides physical support and electrical connection to a MEMS sensor. A resin layer is embedded within an opening of the laminate and a MEMS support layer is embedded within the opening by the resin layer. A MEMS structure of the MEMS sensor is located on the upper surface of the MEMS support layer.

IPC Classes  ?

  • B81B 7/00 - Microstructural systems
  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

95.

TECHNIQUES FOR ALTERNATE PRESSURE EQUALIZATION OF A SENSOR

      
Application Number 17818820
Status Pending
Filing Date 2022-08-10
First Publication Date 2022-12-01
Owner INVENSENSE, INC. (USA)
Inventor
  • Parker, Jeremy
  • Harney, Kieran

Abstract

An alternate venting path can be employed in a sensor device for pressure equalization. A sensor component of the device can comprise a diaphragm component and/or backplate component disposed over an acoustic port of the device. The diaphragm component can be formed with no holes to prevent liquid or particles from entering a back cavity of the device, or gap between the diaphragm component and backplate component. A venting port can be formed in the device to create an alternate venting path to the back cavity for pressure equalization for the diaphragm component. A venting component, comprising a filter, membrane, and/or hydrophobic coating, can be associated with the venting port to inhibit liquid and particles from entering the back cavity via the venting port, without degrading performance of the device. The venting component can be designed to achieve a desired low frequency corner of the sensor frequency response.

IPC Classes  ?

  • G01H 3/00 - Measuring vibrations by using a detector in a fluid
  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
  • B81B 7/00 - Microstructural systems

96.

Actuator layer patterning with polysilicon and etch stop layer

      
Application Number 17334493
Grant Number 11731871
Status In Force
Filing Date 2021-05-28
First Publication Date 2022-12-01
Grant Date 2023-08-22
Owner InvenSense, Inc. (USA)
Inventor
  • Uddin, Ashfaque
  • Lee, Daesung
  • Cuthbertson, Alan

Abstract

A method includes forming an etch stop layer over a first side of a device wafer. The method also includes forming a polysilicon layer over the etch stop layer. A handle wafer is fusion bonded to the first side of the device wafer. A eutectic bond layer is formed on a second side of the device wafer. A micro-electro-mechanical system (MEMS) features are etched into the second side of the device wafer to expose the etch stop layer. The exposed etch stop layer is removed to expose the polysilicon layer. The exposed polysilicon layer is removed to expose a cavity formed between the handle wafer and the device wafer.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
  • B81B 7/00 - Microstructural systems
  • B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems (MEMS)

97.

ACTUATOR LAYER PATTERNING WITH POLYSILICON AND ETCH STOP LAYER

      
Application Number US2022020333
Publication Number 2022/250762
Status In Force
Filing Date 2022-03-15
Publication Date 2022-12-01
Owner INVENSENSE, INC. (USA)
Inventor
  • Uddin, Ashfaque
  • Lee, Daesung
  • Cuthbertson, Alan

Abstract

A method includes forming an etch stop layer over a first side of a device wafer. The method also includes forming a polysilicon layer over the etch stop layer. A handle wafer is fusion bonded to the first side of the device wafer. A eutectic bond layer is formed on a second side of the device wafer. A micro-electro-mechanical system (MEMS) features are etched into the second side of the device wafer to expose the etch stop layer. The exposed etch stop layer is removed to expose the polysilicon layer. The exposed polysilicon layer is removed to expose a cavity formed between the handle wafer and the device wafer.

IPC Classes  ?

  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate

98.

MEMS ELECTRICAL AND PHYSICAL CONNECTION VIA SOLDER COUPLINGS

      
Application Number 17871310
Status Pending
Filing Date 2022-07-22
First Publication Date 2022-11-17
Owner InvenSense, Inc. (USA)
Inventor Hartwell, Peter George

Abstract

A MEMS device, comprising a plurality of stacked layers, includes a plurality of solder couplings that mechanically fasten and electrically couple the MEMS device to an external component. The plurality of solder couplings is connected atop a portion of an upper surface that extends past an edge surface of a MEMS layer to form a shelf and are electrically connected via the shelf to receive signals generated by the MEMS device. These signals are provided to the external component via the solder couplings.

IPC Classes  ?

99.

TRANSMITTER CHARGE SHARING IN A DIFFERENTIAL ULTRASONIC TRANSDUCER

      
Application Number 17308816
Status Pending
Filing Date 2021-05-05
First Publication Date 2022-11-10
Owner InvenSense, Inc. (USA)
Inventor
  • Kline, Mitchell H.
  • Przybyla, Richard J.

Abstract

An ultrasonic transducer device comprises a controller and a differential piezoelectric micromachined ultrasonic transducer with a membrane later, a bottom electrode layer, a piezoelectric layer, and a top electrode layer comprising a first electrode with a positive voltage to displacement coefficient and a second electrode with a negative voltage to displacement coefficient. During a first period, the controller electrically decouples a first output of a first driver from the first electrode, electrically decouples a second output of a second driver from the second electrode, and electrically couples the first and second electrodes to equalize charge between them. During a second period, the controller electrically decouples the first and second electrodes, electrically couples the first output with the first electrode, and electrically couples the second output with the second electrode; where waveforms on the first and second outputs during the second time period are out of phase with one another.

IPC Classes  ?

  • B06B 1/02 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy
  • B06B 1/06 - Processes or apparatus for generating mechanical vibrations of infrasonic, sonic or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction

100.

SYSTEMS AND METHODS FOR PROVIDING GETTERS IN MICROELECTROMECHANICAL SYSTEMS

      
Application Number 17812856
Status Pending
Filing Date 2022-07-15
First Publication Date 2022-11-03
Owner INVENSENSE, INC. (USA)
Inventor
  • Lee, Daesung
  • Huang, Jeff Chunchieh
  • Shin, Jongwoo
  • Kim, Bongsang
  • Jayaraman, Logeeswaran Veerayah

Abstract

Systems and methods are provided that provide a getter in a micromechanical system. In some embodiments, a microelectromechanical system (MEMS) is bonded to a substrate. The MEMS and the substrate have a first cavity and a second cavity therebetween. A first getter is provided on the substrate in the first cavity and integrated with an electrode. A second getter is provided in the first cavity over a passivation layer on the substrate. In some embodiments, the first cavity is a gyroscope cavity, and the second cavity is an accelerometer cavity.

IPC Classes  ?

  • B81B 7/00 - Microstructural systems
  • B81C 1/00 - Manufacture or treatment of devices or systems in or on a substrate
  • B81B 3/00 - Devices comprising flexible or deformable elements, e.g. comprising elastic tongues or membranes
  • B81B 7/02 - Microstructural systems containing distinct electrical or optical devices of particular relevance for their function, e.g. microelectro-mechanical systems (MEMS)
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