公开(公告)号：US12189900B2

公开(公告)日：2025-01-07

申请号：US18131851

申请日：2023-04-06

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Fong-Wei Yang ,  Min-Chi Kao ,  Chung-Wen Chang ,  Ming-Kai Cheng ,  Tzu-Hsi Yang ,  Wen-Sen Su

IPC: G06F3/03 ,  G06F3/0354 ,  G06F3/041

Abstract: A touch detection system includes a stylus, a panel and a processing circuit. The panel can include a plurality of sensing cells used to receive a first signal and a second signal generated by a touch event. The processing circuit can be coupled to the panel and used to determine a plurality of first areas and a plurality of first intensities corresponding to the first signal, determine a plurality of second areas and a plurality of second intensities corresponding to a second signal, and determine whether the touch event is triggered by the stylus touching the panel according to the first intensities, first areas, the second intensities and the second areas.

公开(公告)号：US20240338098A1

公开(公告)日：2024-10-10

申请号：US18131851

申请日：2023-04-06

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Fong-Wei Yang ,  Min-Chi Kao ,  Chung-Wen Chang ,  Ming-Kai Cheng ,  Tzu-Hsi Yang ,  Wen-Sen Su

IPC: G06F3/041 ,  G06F3/0354

CPC classification number: G06F3/04186 ,  G06F3/03545

Abstract: A touch detection system includes a stylus, a panel and a processing circuit. The panel can include a plurality of sensing cells used to receive a first signal and a second signal generated by a touch event. The processing circuit can be coupled to the panel and used to determine a plurality of first areas and a plurality of first intensities corresponding to the first signal, determine a plurality of second areas and a plurality of second intensities corresponding to a second signal, and determine whether the touch event is triggered by the stylus touching the panel according to the first intensities, first areas, the second intensities and the second areas.

公开(公告)号：US10558306B2

公开(公告)日：2020-02-11

申请号：US15620393

申请日：2017-06-12

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Fong-Wei Yang ,  Chun-Kai Chuang ,  Chih-Chen Tsai ,  Chung-Wen Chang

IPC: G06F3/041 ,  G06F3/044

Abstract: A water mode detection method includes: operating a normal touch detection operation on each of a plurality of touch detection unit groups during each of a plurality of normal scan periods to obtain a first detection result; operating a dummy touch detection operation on a first touch detection group of the touch detection unit groups to obtain a second detection result during a dummy scan period, and setting a common voltage of a second touch detection group of a plurality of non-scanned touch detection unit groups to a reference ground during the dummy touch detection operation; and generating a water mode detection result according to the first detection result and the second detection result.

公开(公告)号：US20180356931A1

公开(公告)日：2018-12-13

申请号：US15620393

申请日：2017-06-12

Applicant: HIMAX TECHNOLOGIES LIMITED

Inventor： Fong-Wei Yang ,  Chun-Kai Chuang ,  Chih-Chen Tsai ,  Chung-Wen Chang

IPC: G06F3/041 ,  G06F3/044

Abstract: A water mode detection method includes: operating a normal touch detection operation on each of a plurality of touch detection unit groups during each of a plurality of normal scan periods to obtain a first detection result; operating a dummy touch detection operation on a first touch detection group of the touch detection unit groups to obtain a second detection result during a dummy scan period, and setting a common voltage of a second touch detection group of a plurality of non-scanned touch detection unit groups to a reference ground during the dummy touch detection operation; and generating a water mode detection result according to the first detection result and the second detection result.