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    IMAGE SENSOR APPARATUS AND METHOD CAPABLE OF RAPIDLY READING OUT AND PROCESSING PIXEL VOLTAGES OF PIXEL ARRAY
    11.
    发明申请
    IMAGE SENSOR APPARATUS AND METHOD CAPABLE OF RAPIDLY READING OUT AND PROCESSING PIXEL VOLTAGES OF PIXEL ARRAY 有权

    公开(公告)号：US20210112215A1

    公开(公告)日：2021-04-15

    申请号：US16601541

    申请日：2019-10-14

    Applicant: PixArt Imaging Inc.

    Inventor： Chia-Chi Kuo ,  Jui-Te Chiu ,  Han-Chi Liu ,  Wei-Chia Huang ,  Yi-Cheng Chiu ,  Kuan Tang

    IPC: H04N5/376 ,  H04N5/3745 ,  H04N5/372

    Abstract: A method of image sensor apparatus includes: providing pixel array having pixel units arranged in M rows and N columns; providing N parallel column readout circuits each being arranged for reading out pixel data of one corresponding column; disposing a horizontal shift register in row direction coupled to the N parallel column readout circuits, to receive a pulse signal and a clock signal, sequentially shift a phase of the pulse signal according to the clock signal, and scan a corresponding column according to the shifted phase of the pulse signal; and using a column select circuit having N latches to receive a power down digital control signal transmitted from a microcontroller wherein the power down digital control signal is used to disable at least one column readout circuit to enable and select a portion of the set of N parallel column readout circuits.

    Pixel circuit selecting to output time difference data or image data
    12.
    发明授权
    Pixel circuit selecting to output time difference data or image data 有权

    公开(公告)号：US11812176B2

    公开(公告)日：2023-11-07

    申请号：US17395527

    申请日：2021-08-06

    Applicant: PIXART IMAGING INC.

    Inventor： Ren-Chieh Liu ,  Yi-Cheng Chiu

    IPC: H04N25/767 ,  H01L27/146

    CPC classification number: H04N25/767 ,  H01L27/14612 ,  H01L27/14643

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

    FORCE SENSOR DEVICE AND METHOD FOR DETECTING FORCE BASED ON TEMPORAL OR SPATIAL DIFFERENTIAL IMAGE
    15.
    发明申请
    FORCE SENSOR DEVICE AND METHOD FOR DETECTING FORCE BASED ON TEMPORAL OR SPATIAL DIFFERENTIAL IMAGE 有权

    公开(公告)号：US20220137723A1

    公开(公告)日：2022-05-05

    申请号：US17577005

    申请日：2022-01-16

    Applicant: PixArt Imaging Inc.

    Inventor： Tien-Chung Yang ,  Yi-Cheng Chiu ,  Cheng-Chih Chang ,  Jui-Te Chiu ,  Yi-Chung Chen

    IPC: G06F3/0338 ,  G06F3/03 ,  G05G9/047

    Abstract: A force sensor device includes a first structure component, an optical sensor, and a flexible structure component. The optical sensor is disposed on the first structure component. The flexible structure component has a convex portion, and the flexible structure component is assembled with the first structure component to form a chamber in which the optical sensor is disposed. The optical sensor senses light ray transmitted from the flexible structure component to at least one pixel unit to generate at least one differential image and then detects a user's control force applied for the flexible structure component according to the at least one differential image. Differential image is temporal differential image, generated from successive pixel values of a single pixel unit, or is spatial differential image, generated based on temporal differential images of at least two neighboring pixel units.

    IMAGE SENSOR APPARATUS AND PROCESSING CIRCUIT CAPABLE OF PREVENTING SAMPLED RESET/EXPOSURE CHARGES FROM LIGHT ILLUMINATION AS WELL AS ACHIEVING LOWER CIRCUIT COSTS
    17.
    发明申请
    IMAGE SENSOR APPARATUS AND PROCESSING CIRCUIT CAPABLE OF PREVENTING SAMPLED RESET/EXPOSURE CHARGES FROM LIGHT ILLUMINATION AS WELL AS ACHIEVING LOWER CIRCUIT COSTS 有权

    公开(公告)号：US20220070399A1

    公开(公告)日：2022-03-03

    申请号：US17002755

    申请日：2020-08-25

    Applicant: PixArt Imaging Inc.

    Inventor： Kuan Tang ,  Yi-Cheng Chiu ,  Jui-Te Chiu

    IPC: H04N5/378 ,  H04N5/369 ,  H04N5/3745 ,  H04N5/355

    Abstract: An image sensor apparatus includes a pixel array having pixel units each including an image sensor cell and a processing circuit. The processing circuit includes a bias transistor, second floating diffusion node, first switch unit, signal transfer capacitor, reset transfer capacitor, second switch unit, and third switch unit. Bias transistor is coupled between first and second floating diffusion nodes and has control terminal coupled to bias voltage. First switch unit is coupled between first and second floating diffusion nodes. Second switch unit is coupled between second floating diffusion node and signal transfer capacitor. Third switch unit is coupled between second floating diffusion node and reset transfer capacitor. Signal transfer capacitor is selectively coupled to second floating diffusion node. Reset transfer capacitor is selectively coupled to second floating diffusion node.

    EVENT DETECTION DEVICE
    18.
    发明申请
    EVENT DETECTION DEVICE 审中-公开

    公开(公告)号：US20200302151A1

    公开(公告)日：2020-09-24

    申请号：US16357354

    申请日：2019-03-19

    Applicant: PixArt Imaging Inc.

    Inventor： Han-Chang Lin ,  Han-Chi Liu ,  Yi-Cheng Chiu

    IPC: G06K9/00 ,  G08B13/14 ,  G08B13/196

    Abstract: An event detection device includes a sensor array and a processor. The sensor array is adapted to capture one image. The processor is electrically connected with the sensor array. The processor is adapted to identify if the captured image contains a specific pattern, and trigger an external device to determine whether the specific pattern matches a predetermined feature when the captured image contains the specific pattern.

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