APPAREIL POUR LA CORRECTION DE DONNEES CODEES PAR MODULATION DE PHASE EN QUADRATURE DIFFERENTIELLE

This specification describes a convolutional code and apparatus for the correction of errors in differentially encoded quadrature phase shift keyed data (DQPSK). In each sequence of forty bits 24 are information bits and the remainder are parity bits. Two parity bits are generated for each three inf...

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Bibliographic Details
Main Author CHIN L. CHEN ET ROBERT A. RUTLEDGE
Format Patent
LanguageFrench
Published 30.09.1977
Subjects
BASIC ELECTRONIC CIRCUITRY
CODE CONVERSION IN GENERAL
CODING
DECODING
ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION
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Summary:This specification describes a convolutional code and apparatus for the correction of errors in differentially encoded quadrature phase shift keyed data (DQPSK). In each sequence of forty bits 24 are information bits and the remainder are parity bits. Two parity bits are generated for each three information bit set in the sequence in accordance with the following equations:
Bibliography:Application Number: FR19770002066