发明授权
US08498172B1 Data storage device evaluating frequency range of supply voltage to detect power failure
有权
数据存储设备评估电源电压的频率范围，以检测电源故障
- 专利标题： Data storage device evaluating frequency range of supply voltage to detect power failure
- 专利标题（中）： 数据存储设备评估电源电压的频率范围，以检测电源故障
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申请号： US13190533申请日： 2011-07-26
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公开(公告)号： US08498172B1公开(公告)日： 2013-07-30
- 发明人: Charles R. Patton, III , Norman D. Gardner
- 申请人： Charles R. Patton, III , Norman D. Gardner
- 申请人地址： US CA Irvine
- 专利权人： Western Digital Technologies, Inc.
- 当前专利权人： Western Digital Technologies, Inc.
- 当前专利权人地址： US CA Irvine
- 主分类号： G11C5/14
- IPC分类号： G11C5/14
摘要：
A data storage device (DSD) is disclosed comprising a non-volatile memory (NVM), such as a disk or non-volatile semiconductor memory, and control circuitry for detecting a power failure condition. A frequency range of a supply voltage from a first frequency to a second frequency is extracted, wherein the first frequency is greater than ten hertz, the second frequency is higher than the first frequency, and the second frequency is less than one megahertz. The power failure condition is detected in response to the extracted frequency range of the supply voltage.
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