公开(公告)号：US10761661B2

公开(公告)日：2020-09-01

申请号：US16037433

申请日：2018-07-17

Applicant: Silicon Integrated Systems Corp

Inventor： Chin-Hua Kuo ,  Hsin-Hsuan Yu ,  Jiun-Ying Yeh ,  Ying-Jyh Yeh

IPC: G06F3/044 ,  G06F3/041 ,  G06F3/0354

Abstract: A capacitive touch system and a sensing method thereof are disclosed. The capacitive touch system includes a touch panel; a touch control chip; and an active pen which includes a receiving part, a transmitting part, a control unit, and a pressure sensing element. The control unit controls the transmitting unit to output a pen driving signal according to a pen sensing signal. The pressure sensing element detects a pen pressure signal. The control unit outputs a voltage signal in responsive to the pen pressure signal after a time delay period. In the capacitive touch system and the sensing method thereof, the active pan is not required to be paired with the touch panel.

公开(公告)号：US10809858B2

公开(公告)日：2020-10-20

申请号：US16101548

申请日：2018-08-13

Applicant: Silicon Integrated Systems Corp.

Inventor： Hsin-Hsuan Yu ,  Jiun-Ying Yeh ,  Chin-Hua Kuo ,  Ying-Jyh Yeh

IPC: G06F3/044 ,  G06F3/047 ,  G06F3/041 ,  G06F3/0354

Abstract: A capacitive touch system and a sensing method thereof are disclosed. The capacitive touch system includes a touch panel including a plurality of driving electrodes and a plurality of sensing electrodes; a touch control chip; and an external device configured to transmit data to the touch control chip. In a position detection mode, the touch control chip drives the driving electrodes, reads a sensing signal from the sensing electrodes, and determines a position of a touch according to the sensing signal. In a data receiving mode, the touch control chip receives the data transmitted by the external device after a time delay period. In the capacitive touch system and the sensing method thereof, the position detection mode and the data receiving mode can be sequentially performed by delaying the time period.