System and method for correcting an inaccurate clock

Details System and method for correcting an inaccurate clock System and method for correcting an inaccurate clock

2007-01-02

2007-01-02

Barlow, John (Department: 2863)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Timing

C702S085000

Reexamination Certificate

active

11066375

ABSTRACT:
System and method for correcting an inaccurate clock with the use of an accurate reference clock. A preferred embodiment comprises repeatedly counting clock cycles in a clock signal generated by the inaccurate clock for a specified period of time, after the completion of each specified period of time, computing a delta value based on the clock cycle counts of the clock signal of the inaccurate clock, accumulating a delta sum value, and computing a clock adjustment value for the inaccurate clock based upon the delta sum value. The reference clock is used to mark the end of each specified period of time.

REFERENCES:
patent: 5915108 (1999-06-01), Frey et al.
patent: 6121816 (2000-09-01), Tonks et al.
Hamoui, A.A., et al., “Delta-Sigma Modulator Topologies for High-Speed High-resolution A/D converters,” 2002, pp. I-356-I-359, IEEE.
Papamichalis, P.E., et al., “Delta Coding of LPC Parameters,” 1983, ICASSP 83, pp. 85-88, IEEE, Boston.
Zierhofer, C.M., “Numerical Adaptive Delta Modulation—A technique for Digital Signal Representation in ASIC Applications,” 1991, pp. 331-334, IEEE.

Affiliated with

Also associated with

Rating

System and method for correcting an inaccurate clock does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for correcting an inaccurate clock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for correcting an inaccurate clock will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3723896