Sync signal detecting device

Details Sync signal detecting device Sync signal detecting device

1986-03-21

1988-05-24

Groody, James J.

Pulse or digital communications

Spread spectrum

Direct sequence

375116, 371 47, H04L 700

Patent

active

047471166

ABSTRACT:
A sync signal detecting device includes a circuit for generating a sync signal pattern corresponding to an expected sync signal pattern contained in a digital signal, a circuit for comparing the digital signal with the sync signal pattern to detect a sync signal in the digital signal, a circuit for detecting errors in the digital signal, and a counter for counting the errors thus detected. A sync detection signal is outputted when, where no error is detected, the sync pattern is detected, and when, where errors are detected, the number of errors detected is a predetermined value or less and the part of the digital signal which is not coincident with the sync signal pattern is the part where the errors have been detected.

REFERENCES:
patent: 4316284 (1982-02-01), Howson
patent: 4356566 (1982-10-01), Wada et al.
patent: 4607378 (1986-08-01), Catlin et al.
patent: 4675722 (1987-06-01), Hackett

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