- 专利标题: System and methods for determining object information using selectively floated electrodes
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申请号: US13434608申请日: 2012-03-29
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公开(公告)号: US09665214B2公开(公告)日: 2017-05-30
- 发明人: Tom R. Vandermeijden , Jeffrey A. Small
- 申请人: Tom R. Vandermeijden , Jeffrey A. Small
- 申请人地址: US CA Santa Clara
- 专利权人: Synaptics Incorporated
- 当前专利权人: Synaptics Incorporated
- 当前专利权人地址: US CA Santa Clara
- 代理机构: Osha Liang LLP
- 主分类号: G06F3/044
- IPC分类号: G06F3/044 ; G06F3/041
摘要:
The embodiments described herein provide devices and methods that facilitate improved sensor devices. In one embodiment, a capacitive input device is provided that includes a processing system, a plurality of sensing electrodes configured to sense objects in a sensing region, a conductor, and a shield layer comprising at least one shield electrode, where the at least one shield electrode is disposed between the plurality of sensing electrodes and the conductor. The processing system is configured to operate in a first mode and a second mode. When operating in the first mode the processing system is configured to determine position information for objects in the sensing region using the plurality of sensing electrodes. When operating in a second mode the processing system is configured to electrically float the at least one shield electrode and to determine force information for objects in the sensing region using the plurality of sensing electrodes.
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