Correction apparatus and clock device using the same

Details Correction apparatus and clock device using the same Correction apparatus and clock device using the same

2007-09-10

2010-12-21

Leon, Edwin A. (Department: 2833)

Horology: time measuring systems or devices

Regulating means

For adjusting the frequency or beat

Reexamination Certificate

active

07854544

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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patent: 7272720 (2007-09-01), Hasebe et al.
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patent: 2006/0045215 (2006-03-01), Ballantyne et al.
patent: 2006/0238415 (2006-10-01), Gilkes

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