System for decoupling clock amortization from clock synchronizat

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G06F 112

Patent

active

055308465

ABSTRACT:
A method for accommodating frequent discrete clock synchronization adjustments while maintaining a continuous logical clock time that amortizes the adjustments at a predetermined rate. Two distinct logical clocks are used to decouple clock synchronization procedures from adjustment amortization procedures. One logical clock is discretely synchronized to an external time reference and a second logical clock is adjusted with amortization to provide a continuous monotonically non-decreasing logical clock time.

REFERENCES:
patent: 3701940 (1972-10-01), Nisson
patent: 4531185 (1985-07-01), Halpern et al.
patent: 4584643 (1986-04-01), Halpern et al.
patent: 4882739 (1989-11-01), Potash et al.
patent: 4890303 (1989-12-01), Bader
patent: 5027375 (1991-06-01), Ernst
patent: 5052026 (1991-09-01), Walley
patent: 5052028 (1991-09-01), Zwack
patent: 5062124 (1991-10-01), Hayashi et al.
patent: 5124976 (1992-06-01), Lemaistre et al.
patent: 5428645 (1995-06-01), Dolev et al.
patent: 5452435 (1995-09-01), Malouf et al.
Frank Schmuck & Flaviu Cristian, IBM Almaden Research Center, "Continuous Clock Amortization Need Not Affect the Precision of a Clock Synchronization Algorithm", .COPYRGT.1990 Association for Computing Machinery, pp. 133-143.
F. Cristian, D. Dolev & H. R. Strong, "Decentralizing Technique Applied to Master-Slave Clock Synchronization", IBM Technical Disclosure Bulletin, vol. 33, No. 8, Jan. 1991, pp. 107-109.
Scott E. Farleigh, Application for Canadian Patent, No. 2.060,462, "Apparatus and Method for Timing Distribution Over an Asynchronous Ring", CCA 3254 (10-89), pp. 1-16 & drawing (3 pages.).
Fujifacon Corp., Patent Application, JP04294413-A, "Time adjusting device for network system connecting main station and multiple substations", Oct. 19, 1992, pp. 79-87.
R. W. Harper, "Method of Keeping and Synchronizing Time in a Message-Passing Distributed System", IBM Technical Disclosure Bulletin, vol. 32, No. 12, May 1990, pp. 422-425.
W. Ernst, Siemens AG, Patent Application, EP-391144, "Clock synchronization device for digital communications network", Oct. 10, 1990, pp. 1-4.
F. Cristian, "Probabilistic Clock Synchronization", IBM Technical Disclosure Bulletin, vol. 31, No. 2, Jul. 1988, p. 91.
Flaviu Cristian, IBM Almaden Research Center, "Probalistic Clock Synchronization", Research Report, Computer Science Sep. 23, 1988, pp. 1-20.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

System for decoupling clock amortization from clock synchronizat 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 for decoupling clock amortization from clock synchronizat, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for decoupling clock amortization from clock synchronizat will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2197086

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.