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    TRIGGER CIRCUIT
    3.
    发明申请
    TRIGGER CIRCUIT 审中-公开

    公开(公告)号：US20180351552A1

    公开(公告)日：2018-12-06

    申请号：US15612729

    申请日：2017-06-02

    Applicant: PIXART IMAGING INC.

    Inventor： PENG-SHENG CHEN ,  JUI-TE CHIU ,  HAN-CHI LIU

    IPC: H03K17/967 ,  H01H13/70 ,  H03K17/96 ,  G06F3/033

    Abstract: The present disclosure illustrates a trigger circuit applied to an electronic apparatus having a plurality of triggers, which includes a trigger switch and a trigger network. The trigger switch, corresponding to one of the plurality of triggers, has a first end and a second end, in which the first end of the trigger switch is connected with a pad, and the second end of the trigger switch is connected with a voltage source having a first voltage value. Further, the trigger network, corresponding to a rest of the plurality of triggers, has at least one trigger sub-circuit electrically connected with the pad, in which the trigger network has an impedance value. When the trigger switch is triggered, due to an impedance value of the trigger network, the first voltage value will be detected at the pad.

    IMAGE SENSING DEVICE AND IMAGE SENSING METHOD
    4.
    发明申请
    IMAGE SENSING DEVICE AND IMAGE SENSING METHOD 有权

    公开(公告)号：US20250024179A1

    公开(公告)日：2025-01-16

    申请号：US18220320

    申请日：2023-07-11

    Applicant: PIXART IMAGING INC.

    Inventor： KUAN TANG ,  JUI-TE CHIU

    IPC: H04N25/78 ,  H04N25/585

    Abstract: An image sensing device and an image sensing method are provided. The image sensing device includes a pixel array, first row-selecting lines, second row-selecting lines and a control circuit. Pixels in the pixel array are arranged to form a plurality of rows and a plurality of columns. A first set of the pixels of each row is electrically connected to the corresponding first row-selecting line, and a second set of the pixels of each row is electrically connected to the corresponding second row-selecting line. The control circuit performs an HFR readout process to obtain an image frame. The rows are divided into a selectable portion and an unselectable portion. In each of HFR readout periods, the first set of an unselected first row and the second set of an unselected second row are selected from the selectable portion of the rows.

    CURRENT-STEERING DAC CIRCUIT AND LED CIRCUIT USING THE SAME
    5.
    发明申请
    CURRENT-STEERING DAC CIRCUIT AND LED CIRCUIT USING THE SAME 审中-公开
    电流转向DAC电路和使用该电路的LED电路

    公开(公告)号：US20160128146A1

    公开(公告)日：2016-05-05

    申请号：US14635740

    申请日：2015-03-02

    Applicant: PIXART IMAGING INC.

    Inventor： CHIA-HSUN WU ,  PENG-SHENG CHEN ,  HSIANG-WEI HWANG ,  JUI-TE CHIU

    IPC: H05B33/08 ,  H03M1/66

    CPC classification number: H05B33/0827 ,  H03M1/742

    Abstract: A current-steering DAC circuit for switching a light emitting diode, the current-steering DAC circuit including a current-steering DAC and a resistor. The current-steering DAC outputs a stable current and includes a plurality of current-steering units with a first output end and a second output end. The first output end is electrically connected to the light emitting diode, and the second output end is electrically connected to the resistor. Each of the current-steering units includes a current source and a switching circuit. A first end of the switching circuit is electrically connected to the current source. A second end and a third end of the switching circuit are electrically connected to the first output end and the second output end of the current-steering DAC, respectively. The switching circuit is controlled by a switching signal so as to selectively connect one of the second end and the third end to the first end.

    Abstract translation: 用于切换发光二极管的电流导向DAC电路，所述电流导向DAC电路包括电流导向DAC和电阻器。 电流导向DAC输出稳定的电流并且包括具有第一输出端和第二输出端的多个电流转向单元。 第一输出端电连接到发光二极管，第二输出端电连接到电阻器。 每个电流转向单元包括电流源和开关电路。 开关电路的第一端电连接到电流源。 开关电路的第二端和第三端分别电连接到电流 - 转向DAC的第一输出端和第二输出端。 开关电路由开关信号控制，以便选择性地将第二端和第三端之一连接到第一端。

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