Patent · US Active

Correction apparatus and clock device using the same

US7854544B2 · kind B2 · utility

2Cited by
3References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 10, 2007
Grant dateDec 21, 2010
Priority date—
Expiry dateMar 24, 2028

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG04G5/02
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.