Patent · US Expired

Method and device for dynamically calibrating frequency

US6982606B2 · kind B2 · utility

0Cited by
3References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 6, 2004
Grant dateJan 3, 2006
Priority date—
Expiry dateJul 10, 2024

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01R35/005
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

The method and the device thereof for dynamically calibrating a frequency is provided. The method includes steps of: (a) providing a first system frequency; (b) obtaining a first parameter of timer counting number; (c) providing a second system frequency; (d) obtaining a second parameter of timer counting number if there is a frequency drift between said first system frequency and said second system frequency; (e) obtaining a third parameter of timer interrupt interval by comparing said first parameter of timer counting number with said second parameter of timer counting number; and (f) calibrating a frequency output according to said third parameter of timer interrupt interval.

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