System for generating a time reference value in the MAC layer of

Details System for generating a time reference value in the MAC layer of System for generating a time reference value in the MAC layer of

1991-10-31

1995-01-31

Lee, Thomas C.

Pulse or digital communications

Repeaters

Testing

395200, 375107, 364269, 3642712, 36424294, 364DIG1, H04L 704

Patent

active

053865421

ABSTRACT:
A Time Reference Manager for providing a time reference value to the nodes of a ring topology local area network. A time reference is implemented on a distributed system data bus at a low level interface to provide highly accurate time reference values at each node of the LAN with no settling time required. One node on the network is designated as the Time Reference Manager and broadcasts the Time Reference Protocol data around the ring of the LAN network. Time delay correction is provided by an algorithm performed in a time reference software process. Clock accuracy is selectable by the number of bits used in the clock-counter.

REFERENCES:
patent: 4894846 (1990-01-01), Fine
An American National Standard, IEEE Standards for Local Area Networks, "Token Ring Access Method and Physical Layer Specifications," published by The Institute of Electrical and Elctronics Engineers, Inc., NY, N.Y., Apr. 29, 1985, pp. 27-29.
Flaviu Cristian, "A Probabilistic Approach to Distributed Clock Sychronization," IEEE, 1989, pp. 288-296.
D. L. Mills, "Network Time Protocol (Ver. 2) Specification and Implementation," Electrical Engineering Dept., U. of Delaware, Rev. Apr. 12, 1989, pp. 1-30.

Affiliated with

Also associated with

Rating

System for generating a time reference value in the MAC layer of 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 generating a time reference value in the MAC layer of, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for generating a time reference value in the MAC layer of will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1108251