Projeto de um CODEC não linear para sistema multiplex MCP de 30 canais telefonicos

AUTOR(ES)
DATA DE PUBLICAÇÃO

1974

RESUMO

This paper presents the system development of a non-linear A/O and D/A converters for a PCM system of 30 voice channels, based on the recommendations established by C.C.I.T.T. This CODEC system is a part of a larger project, a, communication system utilizing Pulse code modulation methodt in progress at the Department of Electronics and Communication of the School of Engineering of Campinas. The proposed non-linear CODEC is an 8 bits CODEC that utilizes a compression with logarithmic characteristic, given by "Law A=87,6", approximated ed by 13 linear segments

ASSUNTO(S)

telefone - sistemas multiplex

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