A highly programmable VLSI based 60-channel ADPCM transcoder

Author

Auclair, J.Y. ; Bonnet, J.M. ; Picel, Z.

Author_Institution

TRT, Le Plessis Robinson, France

fYear

1988

fDate

13-17 Jun 1988

Firstpage

56

Lastpage

59

Abstract

A highly programmable, VLSI-based, 60-channel ADPCM (adaptive digital pulse-code modulation) transcoder has been developed. It converts two 2048-kb/s PCM streams into a single 2048-kb/s ADPCM stream and thereby doubles the channel capacity in the existing network. The equipment is fully CCITT-compatible, compact, and power-efficient. It features a wide range of operating options which are easily programmable either from a hand-held service terminal or from a remote maintenance centre. The transcoder can provide efficient solutions for growth of digital communication networks, as well as faster return on investments in digital transmission systems

Keywords

VLSI; digital communication systems; digital integrated circuits; encoding; pulse-code modulation; 2048 kbit/s; ADPCM transcoder; VLSI; adaptive digital pulse-code modulation; channel capacity; digital communication networks; hand-held service terminal; remote maintenance centre; Bit rate; Floating-point arithmetic; Independent component analysis; Modulation coding; Phase change materials; Pulse modulation; Signal processing algorithms; Tellurium; Transcoding; Very large scale integration;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrotechnics, 1988. Conference Proceedings on Area Communication, EUROCON 88., 8th European Conference on

Conference_Location

Stockholm

Type

conf

DOI

10.1109/EURCON.1988.11103

Filename

11103