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    Smart device having ability for rejecting mistaken touching
    12.
    发明授权
    Smart device having ability for rejecting mistaken touching 有权

    公开(公告)号：US09684422B2

    公开(公告)日：2017-06-20

    申请号：US14840125

    申请日：2015-08-31

    Applicant: PIXART IMAGING INC.

    Inventor： Chi-Chieh Liao ,  Yi-Hsien Ko

    IPC: G06F3/044 ,  G06F3/0338

    CPC classification number: G06F3/044 ,  G06F3/0338 ,  G06F2203/04103 ,  Y10T29/49155

    Abstract: A smart device having ability for rejecting mistaken touching is illustrated, which comprises a capacitive button module which comprises a contacting layer, a first electrode layer, a second electrode layer and an elastic layer. A first electrode of the first electrode layer and a second electrode of the second electrode layer form a first inductive capacitor, and the second electrode and a third electrode of the second electrode layer form a second inductive capacitor. When the elastic layer receives a pressure and generates a deformation, a pressing signal is generated according to a capacitance variation of the first inductive capacitor. When a conductor is close to or in contact with the contacting layer, a moving signal is generated according to a capacitance variation of the second inductive capacitor.

    LIGHT SOURCE ASSEMBLY OF OPTICAL TOUCH DEVICE
    13.
    发明申请
    LIGHT SOURCE ASSEMBLY OF OPTICAL TOUCH DEVICE 审中-公开
    光触发器件的光源组件

    公开(公告)号：US20170038913A1

    公开(公告)日：2017-02-09

    申请号：US15297097

    申请日：2016-10-18

    Applicant: PixArt Imaging Inc.

    Inventor： Hung-Ching Lai ,  Hui-Hsuan Chen ,  Chi-Chieh Liao

    IPC: G06F3/042 ,  G02B5/04

    CPC classification number: G06F3/0428 ,  G02B5/04 ,  G02B5/045 ,  G06F3/0418 ,  G06F3/042 ,  G06F3/0421

    Abstract: A light source assembly for an optical touch device includes a linear light source and a plurality of prism pillars. The linear light source includes a lighting surface having a first side along a first direction and a second side along a second direction for emitting light. The first side is longer than the second side, and the first direction intersects the second direction. The prism pillars are disposed adjacent to the lighting surface and arranged along the first direction. Each of the prism pillars includes a first surface adjacent to the lighting surface and two reflection surfaces tilted toward each other for reflecting the light. The first surface is connected to the two reflection surfaces and parallel to the lighting surface. Each of the first surfaces is for receiving the emitted light, and each of the first surfaces and one of the reflection surfaces form a first angle.

    Abstract translation: 用于光学触摸装置的光源组件包括线性光源和多个棱镜柱。 线性光源包括具有沿着第一方向的第一侧和沿着第二方向的用于发光的第二侧的照明表面。 第一侧比第二侧长，第一方向与第二方向相交。 棱镜柱设置成与照明表面相邻并且沿第一方向布置。 每个棱镜柱包括与照明表面相邻的第一表面和朝向彼此倾斜以反射光的两个反射表面。 第一表面连接到两个反射表面并平行于照明表面。 每个第一表面用于接收发射的光，并且每个第一表面和一个反射表面形成第一角度。

    Image sensor which can adjust brightness information to fall in a predetermined range
    14.
    发明授权
    Image sensor which can adjust brightness information to fall in a predetermined range 有权
    可以将亮度信息调整到预定范围内的图像传感器

    公开(公告)号：US09544508B2

    公开(公告)日：2017-01-10

    申请号：US15073658

    申请日：2016-03-18

    Applicant: PixArt Imaging Inc.

    Inventor： Hsin-Chi Cheng ,  En-Feng Hsu ,  Chi-Chieh Liao

    IPC: H04N5/243 ,  H04N5/3745 ,  H04N5/235 ,  H04N5/378

    CPC classification number: H04N5/243 ,  H04N5/2351 ,  H04N5/37455 ,  H04N5/378

    Abstract: An image sensor comprising: an image sensing matrix, comprising at least one image sensing unit, for generating at least one image sensing signal according to a sensed image; an analog to digital converter, for converting the image sensing signal to a digital image sensing signal; an adjusting unit, for adjusting the digital image sensing signal to be an adjusted digital image sensing signal according to at least one adjusting parameter and the digital image sensing signal; an operational circuit, for computing at least part of brightness of the sensed image sensed by the image sensing unit according to the adjusted digital image sensing signal to generate at least one operational brightness signal; and a control unit, for adjusting the adjusting parameter, such that brightness information generated based on brightness values, which corresponds to the operational brightness signal, falls in a predetermined range.

    Abstract translation: 一种图像传感器，包括：图像感测矩阵，包括至少一个图像感测单元，用于根据感测图像生成至少一个图像感测信号; 模数转换器，用于将图像感测信号转换为数字图像感测信号; 调整单元，用于根据至少一个调整参数和数字图像感测信号将数字图像感测信号调整为调整数字图像感测信号; 操作电路，用于根据经调整的数字图像感测信号计算由图像感测单元感测到的感测图像的亮度的至少一部分，以产生至少一个操作亮度信号; 以及控制单元，用于调整调整参数，使得基于与操作亮度信号相对应的亮度值生成的亮度信息落在预定范围内。

    Capacitive touchpad with LED die positioned to correspond with electrode
    17.
    发明授权
    Capacitive touchpad with LED die positioned to correspond with electrode 有权

    公开(公告)号：US12175047B2

    公开(公告)日：2024-12-24

    申请号：US17897722

    申请日：2022-08-29

    Applicant: PIXART IMAGING INC.

    Inventor： Che-Chia Hsu ,  Chi-Chieh Liao ,  Yu-Han Chen

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

    Abstract: A capacitive touchpad is provided, which includes a substrate module, a plurality of sensing electrodes, a plurality of driving electrodes and a plurality of light-emitting diode (LED) dies. The plurality of sensing electrodes and the plurality of driving electrodes form a touch sensing region of the capacitive touchpad, and the touch sensing region is divided into a plurality of sensing units having same areas. Each of the LED dies is arranged in two adjacent ones of the plurality of sensing units, and a position of each of the LED dies corresponds to one of the plurality of driving electrodes, and the LED dies are electrically isolated from the plurality of sensing electrodes and the plurality of driving electrodes.

    Input device including improved pressure sensing unit design
    18.
    发明授权
    Input device including improved pressure sensing unit design 有权

    公开(公告)号：US11953400B2

    公开(公告)日：2024-04-09

    申请号：US18142055

    申请日：2023-05-02

    Applicant: PIXART IMAGING INC.

    Inventor： Che-Chia Hsu ,  Yu-Han Chen ,  Chi-Chieh Liao

    IPC: G01L9/12 ,  G01L9/00

    CPC classification number: G01L9/12 ,  G01L9/0005

    Abstract: A pressure sensing unit is provided. The pressure sensing unit includes a membrane and a pressure sensing pad group. The membrane has a first surface and a second surface. The pressure sensing pad group includes a first pressure sensing pad, a second pressure sensing pad, and a ground pad that are spaced apart from one another. The ground pad and one among the first pressure sensing pad and the second pressure sensing pad are located at the first surface of the membrane, another one among the first pressure sensing pad and the second pressure sensing pad is located at the second surface of the membrane, and an orthographic projection of the ground pad projected onto a reference plane is located between orthographic projections of the first pressure sensing pad and the second pressure sensing pad that are projected onto the reference plane. Therefore, a signal-to-noise ratio can be increased and an erroneous detection can be prevented.

    Single layer capacitive touch force sensor
    19.
    发明授权
    Single layer capacitive touch force sensor 有权

    公开(公告)号：US11726599B2

    公开(公告)日：2023-08-15

    申请号：US17987900

    申请日：2022-11-16

    Applicant: PixArt Imaging Inc.

    Inventor： Chi-Chieh Liao

    IPC: G06F3/041 ,  G06F3/044

    CPC classification number: G06F3/04144 ,  G06F3/0443 ,  G06F3/0446 ,  G06F3/04164

    Abstract: There is provided a touch force sensor including a first drive electrode, a second drive electrode and a receiving electrode. The first drive electrode is used to form a first capacitance with the receiving electrode. The second drive electrode is used to form a second capacitance with the receiving electrode. The receiving electrode shields the first drive electrode such that when a conductor approaches the receiving electrode, only the second capacitance is changed but the first capacitance is not changed. The first capacitance is changed only when the conductor gives a force upon the receiving electrode.

    Lighting touchpad
    20.
    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.

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