发明名称 |
Electronic apparatus and method for measuring cumulative power-on time of an electronic device |
摘要 |
An electronic apparatus for measuring cumulative power-on time of an electronic device is provided with: a capability of measuring the power-on time of the device; a nonvolatile memory having at least three memory areas, each of these areas used to cumulatively store the measured power-on time; and a capability for accurately measuring the cumulative power-on time by comparing the data stored in the memory areas and selecting the information that is most closely repeated in the majority of those memory areas. Also, a method of measuring cumulative power-on time of an electronic device is provided which consists of the steps of: measuring the power-on time of the device; writing the measured power-on time in at least three areas of a nonvolatile memory; and accurately measuring the cumulative power-on time by comparing the data stored in the memory areas and selecting the information that is most closely repeated in the majority of those memory areas. |
申请公布号 |
US5892735(A) |
申请公布日期 |
1999.04.06 |
申请号 |
US19960744754 |
申请日期 |
1996.11.06 |
申请人 |
SONY CORPORATION |
发明人 |
TSUDA, HIDEKAZU;MORI, YASUMORI |
分类号 |
G06F1/28;G06F11/34;G06F12/16;G07C3/04;G09G1/16;(IPC1-7):G04F8/00;G11C7/00;G11C29/00 |
主分类号 |
G06F1/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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