Invention Grant
US09280218B2 Modulating drive signal for communication between active stylus and touch-sensor device
有权
调节驱动信号用于有源触笔和触摸传感器之间的通信
- Patent Title: Modulating drive signal for communication between active stylus and touch-sensor device
- Patent Title (中): 调节驱动信号用于有源触笔和触摸传感器之间的通信
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Application No.: US13335328Application Date: 2011-12-22
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Publication No.: US09280218B2Publication Date: 2016-03-08
- Inventor: Shahrooz Shahparnia , Esat Yilmaz , Trond Jarle Pedersen , Vemund Kval Bakken , Kishore Sundara-Rajan , Yassar Ali , James D. Lyle , Sherif Hanna
- Applicant: Shahrooz Shahparnia , Esat Yilmaz , Trond Jarle Pedersen , Vemund Kval Bakken , Kishore Sundara-Rajan , Yassar Ali , James D. Lyle , Sherif Hanna
- Applicant Address: US CA San Jose
- Assignee: Atmel Corporation
- Current Assignee: Atmel Corporation
- Current Assignee Address: US CA San Jose
- Agency: Baker Botts L.L.P.
- Main IPC: G06F3/038
- IPC: G06F3/038 ; G06F3/044 ; G06F3/0354
Abstract:
In one embodiment, an apparatus comprises a sense unit and a drive unit. The sense unit is operable to sense a first signal from drive lines of a touch sensor. The touch sensor comprises the drive lines and sense lines arranged relative to the drive lines such that intersections of the drive lines and the sense lines form one or more capacitive nodes. The drive unit is operable to transmit a second signal based on the first signal to the sense lines such that transmission of the second signal changes the perceived capacitance of the one or more capacitive nodes.
Public/Granted literature
- US20130106767A1 Modulating Drive Signal for Communication Between Active Stylus and Touch-Sensor Device Public/Granted day:2013-05-02
Information query
IPC分类:
