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    SENSING ELEMENT HAVING PIXELS EXPOSED BY APERTURE INCREASING ALONG PREDETERMINED DIRECTION
    11.
    发明申请
    SENSING ELEMENT HAVING PIXELS EXPOSED BY APERTURE INCREASING ALONG PREDETERMINED DIRECTION 有权

    公开(公告)号：US20210310803A1

    公开(公告)日：2021-10-07

    申请号：US17351625

    申请日：2021-06-18

    Applicant: PixArt Imaging Inc.

    Inventor： EN-FENG HSU ,  CHIA-YU LIU

    IPC: G01C3/08 ,  G06F3/03 ,  G06F3/01

    Abstract: A sensing element includes a plurality of sensing pixel areas arranged in matrix, wherein each of the plurality of sensing pixel areas includes a first pixel, a second pixel, a first shielding layer, a second shielding layer and at least one micro lens. The second pixel is adjacent to the first pixel in a predetermined direction. The first shielding layer is disposed on the first pixel and has a first opening, wherein an aperture of the first opening increases along the predetermined direction from a center of the first pixel. The second shielding layer is disposed on the second pixel and has a second opening, wherein a shape of the second opening is mirror symmetrical with that of the first opening in the predetermined direction. The at least one micro lens is disposed on the first shielding layer and the second shielding layer.

    CODING AND DECODING METHOD USING PATTERNS AND SYSTEM THEREOF
    15.
    发明申请
    CODING AND DECODING METHOD USING PATTERNS AND SYSTEM THEREOF 有权
    使用模式和系统的编码和解码方法

    公开(公告)号：US20170061178A1

    公开(公告)日：2017-03-02

    申请号：US15075831

    申请日：2016-03-21

    Applicant: PIXART IMAGING INC.

    Inventor： EN-FENG HSU

    IPC: G06K7/10 ,  G06K19/06

    CPC classification number: G06K7/10811 ,  G06K19/06018 ,  G06K19/06037

    Abstract: Disclosed are coding and decoding methods using patterns and a system thereof. The object-images are obtained via detecting a pattern comprising objects. The distances between the object-images are obtained and a code is found based on the obtained distances between the object images. The distances between the object-images are defined as distances between centers of the object-images. As there are at least three objects in a pattern, a code is obtained based on a ratio of distances between object-images, which equals to a ratio of distances between objects. As there are at least four objects in a pattern, it is first determined whether a first ratio of object-images equals to a predetermined ratio of object-images. If no, a second ratio of object-images is obtained via a correcting factor and the first ratio of object-image, and finally a code is obtained based on the second ratio of object-images.

    Abstract translation: 公开了使用图案的编码和解码方法及其系统。 通过检测包括对象的图案来获得对象图像。 获得对象图像之间的距离，并且基于获得的对象图像之间的距离找到代码。 物体图像之间的距离被定义为物体图像中心之间的距离。 由于模式中至少有三个对象，所以基于对象图像之间的距离的比率获得代码，其等于对象之间的距离比。 由于模式中至少有四个对象，因此首先确定对象图像的第一比例是否等于对象图像的预定比例。 如果不是，则通过校正因子和对象图像的第一比例获得对象图像的第二比例，最后基于对象图像的第二比例获得代码。

    BRIGHTNESS CONTROL METHOD OF PORTABLE DEVICE AND PORTABLE DEVICE USING THE SAME
    17.
    发明公开
    BRIGHTNESS CONTROL METHOD OF PORTABLE DEVICE AND PORTABLE DEVICE USING THE SAME 审中-公开

    公开(公告)号：US20230326418A1

    公开(公告)日：2023-10-12

    申请号：US18208893

    申请日：2023-06-13

    Applicant: PixArt Imaging Inc.

    Inventor： EN-FENG HSU ,  MENG-HUAN HSIEH

    IPC: G09G3/34 ,  G09G3/36

    CPC classification number: G09G3/3406 ,  G09G3/3648 ,  G09G2330/021 ,  G09G2320/0626 ,  G09G2360/144

    Abstract: There is provided a portable electronic device including a backlight module, an ambient light sensor, a proximity sensor and a processing unit. The backlight module illuminates with backlight brightness. The ambient light sensor is configured to detect ambient light intensity. The proximity sensor is configured to detect an object. The processing unit is configured to activate the proximity sensor when the ambient light intensity detected by the ambient light sensor is lower than a predetermined value or decreases more than a predetermined range, and to maintain or reduce the backlight brightness according to a detection result of the proximity sensor. There is further provided an automatic detection method.

    OPTICAL SENSOR CANCELLING IMAGE FLICKER
    18.
    发明公开
    OPTICAL SENSOR CANCELLING IMAGE FLICKER 审中-公开

    公开(公告)号：US20230209211A1

    公开(公告)日：2023-06-29

    申请号：US18117404

    申请日：2023-03-04

    Applicant: PIXART IMAGING INC.

    Inventor： EN-FENG HSU

    IPC: H04N23/745 ,  H04N23/73

    CPC classification number: H04N23/745 ,  H04N23/73

    Abstract: There is provided an optical sensor that acquires a first image frame corresponding to a first flicker period and acquires a second image frame corresponding to a second flicker period. The optical sensor respectively adds pixel data of every two pixels in neighboring rows of the first image frame and the second image frame to generate a low-resolution image frame for the motion detection.

    OPTICAL MODULE HAVING SYMMETRICAL OPAQUE LAYER
    19.
    发明申请
    OPTICAL MODULE HAVING SYMMETRICAL OPAQUE LAYER 有权

    公开(公告)号：US20220345644A1

    公开(公告)日：2022-10-27

    申请号：US17860352

    申请日：2022-07-08

    Applicant: PixArt Imaging Inc.

    Inventor： JUNG-TAI LIN ,  EN-FENG HSU

    IPC: H04N5/33 ,  H04N5/235 ,  H04N5/232

    Abstract: An optical module including a light source and an optical sensor is provided. The optical sensor includes a pixel matrix and an opaque layer. The pixel matrix includes a plurality of unblocked pixels, a plurality of first pixels and a plurality of second pixels. The opaque layer covers upon a first region, which is a part of each first pixel, and upon a second region, which is a part of each second pixel, but does not cover upon the unblocked pixels, wherein the first region and the second region are symmetrically arranged in a first direction, and uncovered regions of the first pixels and the second pixels are arranged to be larger at a pixel edge than at a pixel center.

    LIGHT CONTROL METHOD OF PORTABLE DEVICE AND PORTABLE DEVICE USING THE SAME
    20.
    发明申请
    LIGHT CONTROL METHOD OF PORTABLE DEVICE AND PORTABLE DEVICE USING THE SAME 有权

    公开(公告)号：US20220208132A1

    公开(公告)日：2022-06-30

    申请号：US17699380

    申请日：2022-03-21

    Applicant: PixArt Imaging Inc.

    Inventor： EN-FENG HSU ,  MENG-HUAN HSIEH

    IPC: G09G3/34 ,  G09G3/36

    Abstract: There is provided a portable electronic device including a backlight module, an ambient light sensor, a proximity sensor and a processing unit. The backlight module illuminates with backlight brightness. The ambient light sensor is configured to detect ambient light intensity. The proximity sensor is configured to detect an object. The processing unit is configured to activate the proximity sensor when the ambient light intensity detected by the ambient light sensor is lower than a predetermined value or decreases more than a predetermined range, and to maintain or reduce the backlight brightness according to a detection result of the proximity sensor. There is further provided an automatic detection method.

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