G - Physics – 04 – G
Patent
G - Physics
04
G
354/231
G04G 7/00 (2006.01) G04G 5/00 (2006.01) G06F 1/14 (2006.01) G06F 3/00 (2006.01) H04L 7/00 (2006.01)
Patent
CA 1211850
- 24 - SYNCHRONIZATION OF REAL-TIME CLOCKS IN A PACKET SWITCHING SYSTEM Abstract A packet switching system in which a remote real- time clock is accurately synchronized to a standard real- time clock via X.25 (CCITT) controlled high-speed transmission links. Synchronization is achieved by the transmission of an interrupt packet and a data packet between a remote processor controlling the remote real-time clock and an administrative processor controlling the standard real-time clock. Synchronization involves the following steps: (1) assembling an interrupt packet comprising the least significant bits of the remote real- time clock for transmission to the administrative processor by the remote processor, (2) calculating bits representing the difference between the transmitted least significant bits of the standard real-time clock by the administrative processor, (3) assembling a data packet comprising bits representing the state of the standard real-time clock and the difference bits for transmission to the remote processor by the administrative processor, (4) adding the difference bits to the bits representing the state of the remote real-time clock by the remote processor, and (5) adding a predefined value to the most significant bits of the remote real-time clock by the remote processor if the transmitted least significant bits of the standard real- time clock are numerically greater than the least siginificant bits of the remote real-time clock. (FIG. 1)
457424
American Telephone And Telegraph Company
Kirby Eades Gale Baker
LandOfFree
Synchronization of real-time clocks in a packet switching... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synchronization of real-time clocks in a packet switching..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronization of real-time clocks in a packet switching... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1290098