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    Inciting user action for motion sensor calibration
    4.
    发明授权
    Inciting user action for motion sensor calibration 有权

    公开(公告)号：US10940384B2

    公开(公告)日：2021-03-09

    申请号：US15907379

    申请日：2018-02-28

    Applicant: InvenSense, Inc.

    Inventor： Jibran Ahmed ,  Karthik Katingari ,  Hemabh Shekhar ,  Joe Youssef

    IPC: A63F13/24 ,  A63F13/211 ,  A63F13/537 ,  A63F13/22

    Abstract: In a method of motion sensor calibration, a motion with which to calibrate a motion sensor is determined. The motion sensor is controlled by a sensor processor and the motion sensor is comprised within a user interface that is coupled with a gaming engine. The sensor processor and the gaming engine coordinate regarding the motion. The sensor processor monitors the motion sensor for evidence of the motion made as a user input via the user interface in response to game content implemented by the gaming engine, based on the coordination, to incite the motion. The sensor processor calibrates the motion sensor with the motion.

    ULTRASONIC DEVICE COEXISTENCE
    5.
    发明公开
    ULTRASONIC DEVICE COEXISTENCE 审中-公开

    公开(公告)号：US20240004061A1

    公开(公告)日：2024-01-04

    申请号：US18216203

    申请日：2023-06-29

    Applicant: InvenSense, Inc.

    Inventor： Joe Youssef ,  Mitchell Kline ,  Richard J. Przybyla

    IPC: G01S15/00 ,  G01S15/87 ,  G01S7/52 ,  G01S15/10

    CPC classification number: G01S15/003 ,  G01S15/876 ,  G01S7/52004 ,  G01S15/107

    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.

    COEXISTENCE OF ULTRASONIC TRANSDUCERS IN AN OPERATING ENVIRONMENT
    6.
    发明公开
    COEXISTENCE OF ULTRASONIC TRANSDUCERS IN AN OPERATING ENVIRONMENT 审中-公开

    公开(公告)号：US20230417907A1

    公开(公告)日：2023-12-28

    申请号：US18207762

    申请日：2023-06-09

    Applicant: InvenSense, Inc.

    Inventor： Daniela Hall ,  Mitchell Kline ,  Joe Youssef

    IPC: G01S15/10 ,  G01S15/04

    CPC classification number: G01S15/105 ,  G01S15/04

    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.

    METHOD AND SYSTEM FOR DETERMINING HINGE ANGLE
    9.
    发明申请
    METHOD AND SYSTEM FOR DETERMINING HINGE ANGLE 有权

    公开(公告)号：US20230027806A1

    公开(公告)日：2023-01-26

    申请号：US17867969

    申请日：2022-07-19

    Applicant: INVENSENSE, INC.

    Inventor： Joe Youssef ,  Bruno Flament

    IPC: G06F1/16

    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.

    Drift correction with phase and amplitude compensation for optical image stabilization
    10.
    发明授权
    Drift correction with phase and amplitude compensation for optical image stabilization 有权

    公开(公告)号：US11381745B2

    公开(公告)日：2022-07-05

    申请号：US16752009

    申请日：2020-01-24

    Applicant: InvenSense, Inc.

    Inventor： Pierre Grenet ,  Sebastien Riccardi ,  Joe Youssef

    IPC: H04N5/232 ,  G06T7/80 ,  G06T7/20

    Abstract: Systems and methods of correcting for signal drift in optical image stabilization of a portable device. An accelerometer is used to obtain an acceleration signal corresponding to acceleration of the portable device. A gravity component is removed from the accelerometer signal to obtain a proper acceleration signal. A double integration is performed on the proper acceleration signal to obtain a translation signal. A drift component of the translation signal is estimated. The estimated drift component is used to generate a drift correction signal. A phase compensation signal is determined based on a plurality of phase responses of a plurality of components of the optical image stabilization system. The drift correction signal and the phase compensation signal are applied to an actuator controller which controls movement of a lens within the portable device as part of the process for optical image stabilization.

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