发明授权
US08319746B1 Systems and methods for removing electrical noise from a touchpad signal
有权
从触摸板信号中去除电气噪声的系统和方法
- 专利标题: Systems and methods for removing electrical noise from a touchpad signal
- 专利标题(中): 从触摸板信号中去除电气噪声的系统和方法
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申请号: US13188968申请日: 2011-07-22
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公开(公告)号: US08319746B1公开(公告)日: 2012-11-27
- 发明人: Harvey Ho , Adrian Wong
- 申请人: Harvey Ho , Adrian Wong
- 申请人地址: US CA Mountain View
- 专利权人: Google Inc.
- 当前专利权人: Google Inc.
- 当前专利权人地址: US CA Mountain View
- 代理机构: McDonnell Boehnen Hulbert & Berghoff LLP
- 主分类号: G06F3/041
- IPC分类号: G06F3/041 ; G09G5/00
摘要:
Systems and methods for removing electrical noise from an input signal from a touchpad device are provided. The touchpad device and one or more sensors may be coupled to a frame. Mechanical vibrations resulting from contact with a surface of the touchpad device during a motion input to the touchpad device may propagate via the frame to the one or more sensors. Information from the input signal and mechanical vibration signals received by one or more sensors may be processed to remove the electric noise from the input signal. In one example, information associated with relative motion of the input may be determined based on varying intensities of mechanical vibration signals received from the one or more sensors. Information of the input signal and the information associated with the relative motion may be correlated to determine position and/or movement information associated with the motion input.
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