TOUCH SENSING DEVICE
    1.
    发明申请

    公开(公告)号:US20230094725A1

    公开(公告)日:2023-03-30

    申请号:US18073255

    申请日:2022-12-01

    发明人: Moon Ho JANG

    IPC分类号: G06F3/041

    摘要: In an embodiment, various active pens may be searched for in every frame, so that various active pens may operate in a touch sensing system.

    Digital loop filter in all-digital phase-locked loop

    公开(公告)号:US11588490B2

    公开(公告)日:2023-02-21

    申请号:US17389663

    申请日:2021-07-30

    IPC分类号: H03L7/093 H03L7/099

    摘要: The present disclosure discloses a digital loop filter in an all-digital phase-locked loop. The digital loop filter may include a selection circuit configured to output one of a first data signal and a second data signal as valid data, a first operation circuit configured to output a first operation signal by adding or subtracting the valid data and a first register signal, a first register circuit configured to register the first operation signal and output the first operation signal as the first register signal, a second operation circuit configured to output a second operation signal by adding or subtracting a value of at least one bit of the valid data and the first register signal, and a second register circuit configured to store the second operation signal and output the second operation signal as a control signal.

    Touch sensing device with a circular display and method of detecting touch coordinates thereof

    公开(公告)号:US11531429B2

    公开(公告)日:2022-12-20

    申请号:US17194794

    申请日:2021-03-08

    发明人: Se Jeong Park

    IPC分类号: G06F3/041

    摘要: Disclosed is a method of detecting touch coordinates in a touch sensing device. The method of detecting touch coordinates may include calculating touch coordinates of a touch point, determining whether the touch coordinates need to be corrected, extending a first distance between reference coordinates and the touch coordinates to a second distance when the touch coordinates need to be corrected, and correcting the touch coordinates by using a value of the second distance.