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    DETECTION CHIP CAPABLE OF CANCELLING BASELINE VOLTAGE
    113.
    发明公开
    DETECTION CHIP CAPABLE OF CANCELLING BASELINE VOLTAGE 审中-公开

    公开(公告)号：US20230208421A1

    公开(公告)日：2023-06-29

    申请号：US18111603

    申请日：2023-02-20

    Applicant: PixArt Imaging Inc.

    Inventor： SUNG-HAN WU

    IPC: H03K17/96

    CPC classification number: H03K17/9622 ,  H03K2217/96074 ,  H03K2217/960715

    Abstract: There is provided a detection chip including a charging circuit, a discharging circuit, a counter and a processor. The charging circuit provides a first charging current within a first charging interval, and provides a second charging current, smaller than the first charging current, within a second charging interval. The discharging circuit provides a first discharging current within a first discharging interval, and provides a second discharging current, smaller than the first discharging current, within a second discharging interval. The counter counts the second charging interval and the second discharging interval. The processor identifies a touch event according to the second charging interval and the second discharging interval.

    Lighting touchpad
    114.
    发明授权
    Lighting touchpad 有权

    公开(公告)号：US11687187B2

    公开(公告)日：2023-06-27

    申请号：US17401858

    申请日：2021-08-13

    Applicant: PIXART IMAGING INC.

    Inventor： Chi-Chieh Liao

    IPC: G06F3/041 ,  H01L25/075 ,  G06F3/044

    CPC classification number: G06F3/0416 ,  G06F3/0445 ,  H01L25/0753

    Abstract: A lighting touchpad is provided, which includes a substrate module, a plurality of sensing electrodes, a plurality of driving electrodes, a plurality of light emitting diode (LED) chips mounted on the substrate module, and a controller. The driving electrodes and the sensing electrodes are formed on the substrate module and are respectively located at different height positions. The driving electrodes define a distribution space that extends along a normal direction of the substrate module. The LED dies are arranged in the distribution space. The controller is electrically coupled to the sensing electrodes, the driving electrodes, and the LED dies through the substrate module. When a coupling capacity is generated between a conductor and at least one of the sensing electrodes, the controller is configured to drive at least one of the LED dies adjacent to the at least one of the sensing electrodes to emit light.

    OBJECT DETERMINING SYSTEM AND ELECTRONIC APPARATUS APPLYING THE OBJECT DETERMINING SYSTEM
    116.
    发明公开
    OBJECT DETERMINING SYSTEM AND ELECTRONIC APPARATUS APPLYING THE OBJECT DETERMINING SYSTEM 审中-公开

    公开(公告)号：US20230196757A1

    公开(公告)日：2023-06-22

    申请号：US18097283

    申请日：2023-01-16

    Applicant: PixArt Imaging Inc.

    Inventor： Guo-Zhen Wang

    IPC: G06V20/10 ,  G06V10/143

    CPC classification number: G06V20/10 ,  G06V10/143

    Abstract: An electronic apparatus, comprising: an optical sensor, comprising a kind determining region and an element analyzing region, wherein the optical sensor acquires first optical data via the kind determining region, and acquires second optical data via the element analyzing region, wherein the kind determining region and the element analyzing region are different regions of the optical sensor; a kind determining component, configured to determine an object kind of the object according to the first optical data; and an element analyzing component, configured to analyze element of the object according to the second optical data.

    CONNECTED COMPONENT ANALYSIS METHOD WHICH CAN REUSE LABEL
    117.
    发明公开
    CONNECTED COMPONENT ANALYSIS METHOD WHICH CAN REUSE LABEL 审中-公开

    公开(公告)号：US20230196717A1

    公开(公告)日：2023-06-22

    申请号：US17553833

    申请日：2021-12-17

    Applicant: PixArt Imaging Inc.

    Inventor： Joon Chok LEE ,  Zi Hao TAN

    IPC: G06V10/44 ,  H04N5/232

    CPC classification number: G06V10/457 ,  H04N5/23229

    Abstract: A connected component analysis (CCA) method, which can use labels repeatedly, comprising: defining a label pattern comprising a label and a plurality of neighboring labels; setting a center label of a current pixel of a target binary image according to a binary value of the current pixel and the neighboring pixels; setting at least two of the neighboring labels according to whether the current pixel is in any one of a first row, a first column and a last column; and recording the center label to a label buffer. Labels for marking pixels of the target binary image are first center labels, and then are second center labels, and are the first center labels again after the labels are the second center labels.

    Mouse chip easily updating firmware and operating method thereof
    118.
    发明授权
    Mouse chip easily updating firmware and operating method thereof 有权

    公开(公告)号：US11681514B2

    公开(公告)日：2023-06-20

    申请号：US17136480

    申请日：2020-12-29

    Applicant: PixArt Imaging Inc.

    Inventor： Jr-Yi Li

    IPC: G06F8/65 ,  G06F9/4401

    CPC classification number: G06F8/65 ,  G06F9/4411

    Abstract: There is provided a control chip including a microcontroller unit (MCU), a bus arbiter, a first bus, a second bus, a void hardware, a cache controller, a flash controller and a flash memory, wherein the flash memory is recorded with a firmware. When the MCU does not receive an update instruction, the bus arbiter reads, according to a function command of the MCU, a function return value associated with the function command from the flash memory via the first bus, the cache controller and the flash controller. When the MCU receives the update instruction, the bus arbiter updates the firmware in the flash memory via the second bus and the flash controller, and the void hardware actively replies a void return value associated with the function command to the MCU to replace the function return value.

    Image identification method applied to a joystick
    119.
    发明授权
    Image identification method applied to a joystick 有权

    公开(公告)号：US11681321B2

    公开(公告)日：2023-06-20

    申请号：US17521883

    申请日：2021-11-09

    Applicant: PixArt Imaging Inc.

    Inventor： Chao-Chien Huang ,  Yen-Hung Wang ,  Yi-Chung Chen ,  Hui-Hsuan Chen ,  Yi-Hsien Ko

    IPC: G06F3/033 ,  G05G9/047

    CPC classification number: G05G9/047 ,  G05G2009/04759

    Abstract: An image identification method is used to eliminate accumulated error of operation of a joystick. The joystick has an optical sensor adapted to analyze a movement of a plurality of identification dots disposed on a stick body. The image identification method includes receiving a series of detection images, setting a first identification dot of the plurality of identification dots as being a reference identification dot, and setting a second identification dot of the plurality of identification dos as being the reference identification dot and cancelling the first identification dot as being the reference identification dot when the first identification dot is near a border of the detection image. A position change of the reference identification dot in the series of detection images is used for identifying a control status of the joystick.

    BAR CODE, BAR CODE READER AND COFFEE MACHINE
    120.
    发明公开
    BAR CODE, BAR CODE READER AND COFFEE MACHINE 审中-公开

    公开(公告)号：US20230169284A1

    公开(公告)日：2023-06-01

    申请号：US18104255

    申请日：2023-01-31

    Applicant: PixArt Imaging Inc.

    Inventor： Shu-Sian Yang

    IPC: G06K7/10 ,  A47J31/44 ,  G06K7/14 ,  G06K19/06

    CPC classification number: G06K7/10722 ,  A47J31/4492 ,  G06K7/1413 ,  G06K19/06028

    Abstract: A barcode, comprising: a code region, comprising at least two different types of information which represents code information of the code region; and a boundary region, formed as a closed shape surrounding the code region; wherein a decoding direction of the code region is not relative to the boundary region. The present invention also provides a barcode processing system which can process the barcode to generate a control command, and provides a coffee machine using the barcode processing system. The barcode can be easily aligned by a closed boundary region, without using a frame buffer with a large size.

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