Correction apparatus and clock device using the same
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United States of America Patent
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Dec 21, 2010
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app pub date -
Sep 10, 2007
filing date -
Jun 20, 2007
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Abstract
A clock device is provided for generating a real-time clock. The clock device includes a frequency generator, a measuring module, a setting module and a timing module. The frequency generator generates a frequency signal. The measuring module is coupled to the frequency generator for measuring the frequency signal and generating a measuring frequency value. The setting module is coupled to the measuring module for generating an error setting value corresponding to the measuring frequency value. The timing module is coupled to the frequency generator and the setting module for compensating the frequency signal according to the error setting value and generating the real-time clock.
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