Data stream frame synchronisation

Details Data stream frame synchronisation Data stream frame synchronisation

1993-11-04

1994-11-22

Bocure, Tesfaldet

Pulse or digital communications

Spread spectrum

Direct sequence

371 42, 371 46, H04L 700

Patent

active

053675444

ABSTRACT:
A data stream has frames of fixed, or variable but determined, length and includes a fixed length header at a predetermined position in the frame, which header has a linear systematic code structure including information digits and check digits. The check digits are employed for frame synchronization detection, as well as error detection and correction, using, for example, a modified CRC (cyclic redundancy check) decoder.

REFERENCES:
patent: 3801956 (1974-04-01), Braun et al.
patent: 3855576 (1974-12-01), Braun et al.
patent: 3873920 (1975-03-01), Apple, Jr. et al.
patent: 4316285 (1982-02-01), Bobilin et al.
patent: 4959834 (1990-09-01), Aikawa et al.
"Error Control Coding Fundamentals and Applications" Daniel J. Costello, Jr. and Shulin, Prentice-Hall, Inc., 1983, pp. 51-57 and 85-110.

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