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    Electric toothbrush adopting force sensing array
    35.
    发明授权
    Electric toothbrush adopting force sensing array 有权

    公开(公告)号：US11478068B2

    公开(公告)日：2022-10-25

    申请号：US17065865

    申请日：2020-10-08

    Applicant: PixArt Imaging Inc.

    Inventor： Chih-Ming Sun ,  Ming Shun Manson Fei ,  Yi-Hsien Ko

    IPC: G01L1/00 ,  A46B15/00 ,  A61C17/22 ,  G01L1/14 ,  A61C17/34

    Abstract: There is provided an electric toothbrush including a toothbrush head, a toothbrush handle and a force sensing array. The force sensing array is arranged on the toothbrush head and/or the toothbrush handle. When the force sensing array is arranged on the toothbrush head, it is able to detect the force uniformity of brush hairs. When the force sensing array is arranged on the toothbrush handle, it is able to control the vibration strength of the brush hairs and detect the pressing force of the brush hairs.

    Method for parking guidance and parking guidance system
    37.
    发明授权
    Method for parking guidance and parking guidance system 有权

    公开(公告)号：US11414069B1

    公开(公告)日：2022-08-16

    申请号：US17205351

    申请日：2021-03-18

    Applicant: PIXART IMAGING INC.

    Inventor： Yi-Hsien Ko

    IPC: B60W30/06 ,  G08G1/16 ,  G08G1/14

    Abstract: A method for parking guidance and a parking guidance system are provided. The parking guidance system includes one or more access points located in a parking area that includes a plurality of parking spaces. Every access point collects parking information from parking space sensors disposed at different places of the parking area. The system provides an application that is executed in a device in a vehicle, and the application is used to communicate with the one or more access points. The method for parking guidance is performed in each of the access points. When one access point receives a parking request from the vehicle, the access point generates a message for indicating the available parking space to the driver.

    Pixel circuit outputting pulse width signals and performing analog operation
    38.
    发明授权
    Pixel circuit outputting pulse width signals and performing analog operation 有权

    公开(公告)号：US11290671B2

    公开(公告)日：2022-03-29

    申请号：US17009417

    申请日：2020-09-01

    Applicant: PixArt Imaging Inc.

    Inventor： Ren-Chieh Liu ,  Chih-Huan Wu ,  Yi-Hsien Ko ,  Han-Chi Liu

    IPC: H04N5/3745 ,  H01L27/146

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

    Image determining method and object coordinate computing apparatus
    39.
    发明授权
    Image determining method and object coordinate computing apparatus 有权

    公开(公告)号：US10255518B2

    公开(公告)日：2019-04-09

    申请号：US15212281

    申请日：2016-07-17

    Applicant: PixArt Imaging Inc.

    Inventor： Chia-Cheun Liang ,  Shu-Sian Yang ,  Yi-Hsien Ko

    IPC: G06K9/32 ,  G06K9/34 ,  G06K9/46 ,  G06K9/62 ,  G06T7/11 ,  G06T7/136 ,  G06K9/00

    Abstract: An image determining method for scanning an image and determining specific image pixels of a specific image. The method comprises: determining at least one pixel in a first row having brightness value larger than a threshold value as the specific image pixel; defining a leftmost pixel and a rightmost pixel of the specific image pixel in the first row as a leftmost edge and a rightmost edge of a first specific image range; and defining a second specific image range in a second row of the image, which is next to the first row. Column positions of a leftmost edge and a rightmost edge of the second specific image range are respectively the same with column positions of the leftmost edge and the rightmost edge of the first specific image range. Via this method, the determining for the specific image pixels is more accurate.

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