发明授权
- 专利标题: Input device based on voltage gradients
- 专利标题(中): 基于电压梯度的输入装置
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申请号: US12879474申请日: 2010-09-10
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公开(公告)号: US08638112B2公开(公告)日: 2014-01-28
- 发明人: Shawn P. Day , Patrick Worfolk
- 申请人: Shawn P. Day , Patrick Worfolk
- 申请人地址: US CA San Jose
- 专利权人: Synaptics Incorporated
- 当前专利权人: Synaptics Incorporated
- 当前专利权人地址: US CA San Jose
- 代理机构: Ingrassia Fisher & Lorenz P.C.
- 主分类号: G01R27/28
- IPC分类号: G01R27/28
摘要:
An input device is disclosed, including a first drive electrode comprising a resistive material and a first sense electrode disposed proximate to the first drive electrode. The input device further includes a processing system which is coupled with the first drive electrode and the first sense electrode. In one embodiment, the processing system is configured for electrically driving a first end of the first drive electrode and electrically driving a second end of the first drive electrode to cause a change in a voltage gradient along a length of the first drive electrode. In such an embodiment, the change in the voltage gradient generates a first electrical signal in the first sense electrode. The processing system also acquires a first measurement of the first electrical signal and determines positional information along the length of the first drive electrode based upon the first measurement, wherein the positional information is related to an input object.
公开/授权文献
- US20110062974A1 INPUT DEVICE BASED ON VOLTAGE GRADIENTS 公开/授权日:2011-03-17
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