Device for justifying a digital bit stream at regular intervals

Pulse or digital communications – Synchronizers – Phase displacement – slip or jitter correction

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

370516, H04L 700

Patent

active

056217757

ABSTRACT:
A digital bit stream from a first synchronous link is timed by a first clock and is to be sent over a second synchronous link timed by a second clock. A device for justifying the bit stream at regular intervals includes a buffer memory. Respective pointers supply buffer memory write and read addresses. A value indicating how full the buffer memory is is calculated and compared to first and second threshold values to produce a justification command signal. The first and second variable threshold values are determined according to the phase difference between the header of a row received from the first link and the header of a row sent at the same time on the second link. The device finds an application in gateways at the input of and in telecommunication networks using the synchronous digital hierarchy.

REFERENCES:
patent: 4791652 (1988-12-01), McEachern et al.
patent: 5331641 (1994-07-01), Parruck et al.
patent: 5459782 (1995-10-01), Volejnik
patent: 5471476 (1995-11-01), Hiramoto
Ralp Urbansky "Simulation Results and Field Trial Experience of Justification Jitter", World Telecommunications Forum Tech. Symp., No. 2, Oct. 10, 1991, pp. 45-49 French Search Report FR 9312497.

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

Device for justifying a digital bit stream at regular intervals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Device for justifying a digital bit stream at regular intervals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Device for justifying a digital bit stream at regular intervals will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-367463

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