Encoder/decoder circuit for B8ZS and B6ZS applications

Details Encoder/decoder circuit for B8ZS and B6ZS applications Encoder/decoder circuit for B8ZS and B6ZS applications

1987-06-18

1988-11-15

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375121, H04L 2534

Patent

active

047854669

ABSTRACT:
The present invention comprises a circuit for providing both B8ZS and B6ZS coding and decoding selectably with a single circuit. A rate control signal can, in preferred embodiment, be utilized to select the desired line code in a application dependent manner. Advantage is taken of the fact that there is a commonality in B8ZS and B6ZS code patterns in the last five bits of the codes, with the difference being the number of logic "zeros" before the first bit of coding.

REFERENCES:
patent: 4408325 (1983-10-01), Grover
patent: 4434498 (1984-02-01), Mathieu
patent: 4503546 (1985-03-01), Yoshine et al.
patent: 4509164 (1985-04-01), Mouftah
patent: 4543611 (1985-09-01), Kurahayashi

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