Device for coding-decoding a binary digital signal bit stream fo

Details Device for coding-decoding a binary digital signal bit stream fo Device for coding-decoding a binary digital signal bit stream fo

1985-01-29

1987-07-14

Safourek, Benedict V.

Pulse or digital communications

Repeaters

Testing

375 54, 375 86, H04L 2718

Patent

active

046807756

ABSTRACT:
A coder-decoder device for OQPSK signals with four phase states comprises a coder for converting a binary signal bit stream T.sub.n into two digital bit streams X.sub.n and Y.sub.n and a decoder for restoring the digital bit stream T.sub.n from the digital bit streams X.sub.n and Y.sub.n applied to its inputs. The coder comprises a first logic circuit for assigning to each bit of the bit stream X.sub.n the binary value 1 or 0 in accordance with the logic equation

REFERENCES:
patent: 3522537 (1970-08-01), Boughtwood
patent: 3924186 (1975-12-01), Gordy et al.
patent: 3978406 (1976-08-01), Matsumoto et al.
patent: 4530094 (1985-07-01), Sewerinson

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