发明授权
- 专利标题: System and method for improved free fall detection
- 专利标题(中): 改进自由落体检测的系统和方法
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申请号: US13725507申请日: 2012-12-21
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公开(公告)号: US08638516B2公开(公告)日: 2014-01-28
- 发明人: Hsien Tsung Lin , Jih Hsin Pan
- 申请人: Dell Products, LP
- 申请人地址: US TX Round Rock
- 专利权人: Dell Products, LP
- 当前专利权人: Dell Products, LP
- 当前专利权人地址: US TX Round Rock
- 代理机构: Larson Newman, LLP
- 主分类号: G11B15/04
- IPC分类号: G11B15/04 ; G11B19/04 ; G11B21/02
摘要:
An information handling system includes a free fall sensing system having an amplifier and sampling circuit, a sampling data analyzer, a sampling clock duration controller, and a sampling clock generator. The amplifier and sampling circuit is configured to sample data signals from the free fall sensor based on an initial sampling signal and based on a variable sampling signal. The sampling data analyzer is configured to compare a magnitude of sampled data point to a predetermined magnitude, to output an alert signal when the magnitude of the sampled data point is below the predetermined magnitude. The sampling clock duration controller is configured to vary a duration and a frequency of a sampling signal control in response to the alert signal. The sampling clock generator is configured to send a variable sampling signal to the amplifier and sampling circuit in response to the variation of the duration and the frequency of the sampling signal control.
公开/授权文献
- US20130107394A1 System and Method for Improved Free Fall Detection 公开/授权日:2013-05-02
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