Mapping arbitrary signals into SONET

Details Mapping arbitrary signals into SONET Mapping arbitrary signals into SONET

2007-10-23

2007-10-23

Nguyen, Hanh (Department: 2616)

Multiplex communications

Communication techniques for information carried in plural...

Adaptive

C370S395100, C370S503000, C398S045000, C398S066000

Reexamination Certificate

active

11289351

ABSTRACT:
A synchronizer/de-synchronizer maps continuous format signals of an arbitrary rate into frames of pre-selected single common rate, such as SONET frames, with no bite changed and very little jitter or wander added. In this way, the continuous format signal may be carried transparently as a tributary of a SONET network. Each frame comprises a definite number of fixed stuff bits, including transport overhead bits and reminder fixed stuff bits. A frame also comprises an adjustable number of adaptive stuff bits, resulting from the phase difference between the arbitrary rate and the common rate. A mapping function is performed in a tributary unit shelf of a SONET transport shelf, and the reverse mapping function is performed in a similar way at the far end of a SONET connection. The stuff bits are spread uniformly within the frame.

REFERENCES:
patent: 3872257 (1975-03-01), Bleickardt et al.
patent: 4791652 (1988-12-01), McEachern et al.
patent: 4811340 (1989-03-01), McEachern et al.
patent: 4928275 (1990-05-01), Moore et al.
patent: 4967405 (1990-10-01), Upp et al.
patent: 4998242 (1991-03-01), Upp
patent: 5030951 (1991-07-01), Eda et al.
patent: 5067126 (1991-11-01), Moore
patent: 5131013 (1992-07-01), Choi
patent: 5263056 (1993-11-01), Urbansky
patent: 5428641 (1995-06-01), Long
patent: 5453780 (1995-09-01), Chen et al.
patent: 5663820 (1997-09-01), Shiragaki
patent: 5784594 (1998-07-01), Beaty
patent: 5889781 (1999-03-01), Eftimakis et al.
patent: 6047005 (2000-04-01), Sherman et al.
patent: 6240087 (2001-05-01), Cummings et al.
patent: 7002986 (2006-02-01), Roberts
Grover, W.D., et al.“Measured Pulse-Stuffing Jitter in Asynchronous DS-1/Sonet Multiplexing With and Without Stuff-Threshold Modulation Circuit”, Electronics Letters, IEE Stevenage, GB. vol. 23, No. 18, Aug. 27, 1987. pp. 959-961.

Affiliated with

Also associated with

Rating

Mapping arbitrary signals into SONET does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mapping arbitrary signals into SONET, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mapping arbitrary signals into SONET will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3827263