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    OPTICAL DETECTION MODULE AND RELATED MANUFACTURING METHOD
    101.
    发明申请
    OPTICAL DETECTION MODULE AND RELATED MANUFACTURING METHOD 有权

    公开(公告)号：US20240405042A1

    公开(公告)日：2024-12-05

    申请号：US18204959

    申请日：2023-06-02

    Applicant: PixArt Imaging Inc.

    Inventor： Jen-Chuan Chen ,  Chi-Chih Shen ,  Hsuan-Yao Chang ,  Yu-Chiao Peng

    IPC: H01L27/146 ,  H01L31/18

    Abstract: An optical detection module and a related manufacturing method are applied for chip scale package technology. The optical detection module includes a chip scale package assembly and a light sheltering layer. The chip scale package assembly includes a glass substrate, a detection chip, an isolation layer, a plurality of redistribution layers, and a plurality of conductive contacts. The detection chip is located above the glass substrate. The isolation layer is disposed on a surface of the detection chip opposite to the glass substrate. The plurality of redistribution layers is disposed on the isolation layer and spaced from each other, and having a plurality of conductive units. The plurality of conductive contacts is respectively disposed on the plurality of conductive units. The light sheltering layer is disposed on a lateral surface of the chip scale package assembly, and adapted to block light transmission and provide a covering protection function.

    Stackable actuating element with profiled insulated electrode structures
    102.
    发明授权
    Stackable actuating element with profiled insulated electrode structures 有权

    公开(公告)号：US12160184B2

    公开(公告)日：2024-12-03

    申请号：US18542804

    申请日：2023-12-18

    Applicant: PixArt Imaging Inc.

    Inventor： Ville Topias Makinen ,  Roberto Tejera-Garcia

    IPC: H02N1/00

    Abstract: A stacked structure formed of two active element (AE) layers includes: a first substrate; a second substrate; a first conductive surface and a second conductive surface totally formed on the first substrate and second substrate, respectively, and including an active region and a connecting region; a compression space between the first active region of the first conductive surface and the second substrate; an elastic layer including a plurality of elastic nodules spanning the compression space and contacting the second substrate, formed on the active region of the first conductive surface or on an exposed surface of the second substrate, the elastic nodules compressed in response to a voltage difference between the first and second conductive surfaces or to an external force; a conductive adhesive contacting the connecting region of the first and second conductive surfaces; and a conductive element coupled to the conductive adhesive, for electrically connecting the AE layers.

    Cleaning system and cleaning method
    103.
    发明授权
    Cleaning system and cleaning method 有权

    公开(公告)号：US12156632B2

    公开(公告)日：2024-12-03

    申请号：US17900949

    申请日：2022-09-01

    Applicant: PIXART IMAGING INC.

    Inventor： Shih-Feng Chen ,  Han-Lin Chiang ,  Ning Shyu

    IPC: A47L9/28 ,  A47L5/22 ,  A47L9/00 ,  A47L9/14 ,  A47L9/19 ,  A47L9/22 ,  A47L9/30 ,  G01N15/075 ,  G05D1/00 ,  G06T7/00 ,  G06V10/75

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

    Smoke detector
    104.
    发明授权
    Smoke detector 有权

    公开(公告)号：US12148279B2

    公开(公告)日：2024-11-19

    申请号：US17883625

    申请日：2022-08-09

    Applicant: PixArt Imaging Inc.

    Inventor： Cheng-Nan Tsai ,  Yen-Chang Chu ,  Chih-Ming Sun

    IPC: G08B17/10 ,  G08B17/107

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

    Pixel circuit selecting to output time difference data or image data
    105.
    发明授权
    Pixel circuit selecting to output time difference data or image data 有权

    公开(公告)号：US12137295B2

    公开(公告)日：2024-11-05

    申请号：US18235370

    申请日：2023-08-18

    Applicant: PixArt Imaging Inc.

    Inventor： Ren-Chieh Liu ,  Yi-Cheng Chiu

    IPC: H04N25/767 ,  H01L27/146

    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.

    Optical sensor device having sensing pixels and self-powered pixels
    106.
    发明授权
    Optical sensor device having sensing pixels and self-powered pixels 有权

    公开(公告)号：US12117884B2

    公开(公告)日：2024-10-15

    申请号：US18222468

    申请日：2023-07-16

    Applicant: PixArt Imaging Inc.

    Inventor： Guo-Zhen Wang

    IPC: G06F1/3234 ,  G06F3/03 ,  G06F3/0354 ,  G06F3/038

    CPC classification number: G06F1/3259 ,  G06F3/0317 ,  G06F3/0354 ,  G06F3/03543 ,  G06F3/038 ,  Y02D10/00

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

    Single photon avalanche diode based optical sensor, event-based vision sensor and operating method thereof
    107.
    发明授权
    Single photon avalanche diode based optical sensor, event-based vision sensor and operating method thereof 有权

    公开(公告)号：US12117339B1

    公开(公告)日：2024-10-15

    申请号：US18464304

    申请日：2023-09-11

    Applicant: PIXART IMAGING INC.

    Inventor： Tso-Sheng Tsai ,  Kuei-Yang Tseng ,  Yueh-Lin Chung

    IPC: G01J1/44

    CPC classification number: G01J1/44 ,  G01J2001/4466

    Abstract: There is provided an optical sensor including an SPAD pixel array, multiple counters and a processor. The multiple counters count photon events of the SPAD pixel array to output an event-based vision sensor (EVS) frame per EVS period. The processor determines an index state of each pixel of the SPAD pixel array by comparing a counting value of each pixel respectively at a predetermined number of checking points with two predetermined thresholds, and calculates an index change of the index state associated with each pixel between adjacent EVS frames. The processor further changes the EVS period and/or adds a count offset to the counting value of each pixel to improve sensitivity of the event-based vision sensor.

    ANALOG OPERATION CIRCUIT FOR PROCESSING PIXEL DATA IN ANALOG PHASE
    108.
    发明公开
    ANALOG OPERATION CIRCUIT FOR PROCESSING PIXEL DATA IN ANALOG PHASE 审中-公开

    公开(公告)号：US20240340553A1

    公开(公告)日：2024-10-10

    申请号：US18747498

    申请日：2024-06-19

    Applicant: PixArt Imaging Inc.

    Inventor： REN-CHIEH LIU ,  CHIH-HUAN WU ,  YI-HSIEN KO ,  HAN-CHI LIU

    IPC: H04N25/772 ,  H01L27/146

    CPC classification number: H04N25/772 ,  H01L27/14643

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

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