Bit shift detecting circuit and synchronizing signal detecting c

Details Bit shift detecting circuit and synchronizing signal detecting c Bit shift detecting circuit and synchronizing signal detecting c

1996-10-25

2000-10-03

Pham, Chi H.

Pulse or digital communications

Synchronizers

Frequency or phase control using synchronizing signal

375359, 714775, H04L 700

Patent

active

061283584

ABSTRACT:
A bit shift value of a synchronizing signal is detected. That is, after respective hamming distances between data from the first part of the synchronization signal and the respective pre-detects words, which are calculated by hamming distance calculators, are respectively compared with a predetermined value by comparators, the compared results are encoded by an encoder and the results are output as the bit shift value. Such bit shift value may be utilized to shift positions of the synchronizing signals of synchronizing blocks.

REFERENCES:
patent: 3656109 (1972-04-01), Conway
patent: 3710026 (1973-01-01), Graham et al.
patent: 3818442 (1974-06-01), Solomon
patent: 4389636 (1983-06-01), Riddle, Jr.
patent: 4414662 (1983-11-01), Bousquet
patent: 4541095 (1985-09-01), Vries
patent: 4649543 (1987-03-01), Levine
patent: 4914535 (1990-04-01), Weng
patent: 5148453 (1992-09-01), Newby et al.
patent: 5406569 (1995-04-01), Isozaki

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