Pulse or digital communications – Repeaters – Testing
Patent
1988-06-24
1989-10-24
Griffin, Robert L.
Pulse or digital communications
Repeaters
Testing
358141, H04B 1404
Patent
active
048766984
ABSTRACT:
A system for transmitting sequences of digital samples encoded by variable-length binary words is formed on the one hand by a transmitter device comprising a statistic encoding circuit for encoding in said variable-length words words of a fixed length appearing at its input in the shape of sample sequences, a synchronizing circuit for forming synchronizing words which define the position of the variable-length words in the sequences and a multiplexer circuit for combining, in view of their transmission, the synchronizing words with the variable-length words, and, on the other hand, a receiver device comprising a demultiplexer circuit for applying from one of its two outputs the variable-length words received to a statistic decoding circuit for recovering the fixed-length words and for applying from the other output the synchronizing word to a processing circuit for restituting, in the event of a transmission error, the position of the samples in the sequence.
REFERENCES:
patent: 4298978 (1981-11-01), Nakamura
patent: 4491869 (1985-01-01), Heitmann
patent: 4660079 (1987-04-01), Devimeux et al.
Bastien Jean-Paul
Boisson Jean-Yves
Griffin Robert L.
Huseman Marianne
Marion Michael E.
Telecommunications Radioelectriques et Telephoniques
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