Invention Grant
- Patent Title: Touch input device and system thereof
- Patent Title (中): 触摸输入设备及其系统
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Application No.: US14022684Application Date: 2013-09-10
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Publication No.: US09262025B2Publication Date: 2016-02-16
- Inventor: Mu-Tsan Yu , Ying-Jyh Yeh
- Applicant: Silicon Integrated Systems Corp.
- Applicant Address: TW Hsinchu
- Assignee: SILICON INTEGRATED SYSTEMS CORP.
- Current Assignee: SILICON INTEGRATED SYSTEMS CORP.
- Current Assignee Address: TW Hsinchu
- Agency: Ladas & Parry LLP
- Main IPC: G06F3/044
- IPC: G06F3/044 ; G06F3/0354
Abstract:
A touch input device provided in the present invention includes a pen tip, a pressure sensing module, a control unit and a PWM generator. The pen tip is utilized to touch a capacitive touchscreen and conduct a touchscreen driving signal. The pressure sensing module is utilized to generate a pressure sensing signal which corresponds to a pressure of the pen tip on the capacitive touchscreen. The control unit is utilized to receive the touchscreen driving signal and the pressure sensing signal, and then to generate a PWM control signal according to the pressure sensing signal. Further, a pulse width of the PWM control signal is proportional to the pressure. The PWM generator is utilized to provide a PWM signal to the pen tip according to the PWM control signal. A touch input system is further provided in the present invention.
Public/Granted literature
- US20150070293A1 Touch Input Device and System Thereof Public/Granted day:2015-03-12
Information query
