发明授权
- 专利标题: Touch and hover sensor compensation
- 专利标题(中): 触摸并悬停传感器补偿
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申请号: US12895600申请日: 2010-09-30
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公开(公告)号: US08982060B2公开(公告)日: 2015-03-17
- 发明人: Brian Michael King , Omar Leung , Paul G. Puskarich , Jeffrey Traer Bernstein , Andrea Mucignat , Avi E. Cieplinski , Muhammad U. Choudry , Praveen R. Subramani , Marc J. Piche , David T. Amm , Duncan Robert Kerr
- 申请人: Brian Michael King , Omar Leung , Paul G. Puskarich , Jeffrey Traer Bernstein , Andrea Mucignat , Avi E. Cieplinski , Muhammad U. Choudry , Praveen R. Subramani , Marc J. Piche , David T. Amm , Duncan Robert Kerr
- 申请人地址: US CA Cupertino
- 专利权人: Apple Inc.
- 当前专利权人: Apple Inc.
- 当前专利权人地址: US CA Cupertino
- 代理机构: Morrison & Foerster LLP
- 主分类号: G06F3/044
- IPC分类号: G06F3/044 ; G06F3/041
摘要:
Compensation for sensors in a touch and hover sensing device is disclosed. Compensation can be for sensor resistance and/or sensor sensitivity variation that can adversely affect touch and hover measurements at the sensors. To compensate for sensor resistance, the device can gang adjacent sensors together so as to reduce the overall resistance of the sensors. In addition or alternatively, the device can drive the sensors with voltages from multiple directions so as to reduce the effects of the sensors' resistance. To compensate for sensor sensitivity variation (generally at issue for hover measurements), the device can apply a gain factor to the measurements, where the gain factor is a function of the sensor location, so as to reduce the sensitivity variation at different sensor locations on the device.
公开/授权文献
- US20120050209A1 TOUCH AND HOVER SENSOR COMPENSATION 公开/授权日:2012-03-01
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