Auxiliary memory device, method of setting time for electronic device, and information processing apparatus
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United States of America Patent
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Aug 20, 2002
Grant Date -
N/A
app pub date -
May 28, 1999
filing date -
Jul 18, 1997
priority date (Note) -
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Abstract
An auxiliary memory device which not only stores data, but also measures time information managed by an application program of a main apparatus is provided. The auxiliary memory device has a clock element as a clock unit having a clock function, a power supply for supplying an electric power, a nonvolatile memory for storing data of at least the main apparatus, and a microcomputer having a communicating function for communicating with the main apparatus. The clock element is an element supplied with the electric power from the power supply for continuing a time measuring operation. The nonvolatile memory stores at least time information produced when an application program of a main apparatus is temporarily interrupted.
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