EP0342686A3

Processor based linked compressor-expander telecommucications system

Abstract

A digital linked compressor-expander telecommunications system (Lincompex), is implemented using a general purpose digital signal processor (20) wherein the compression and expansion functions are performed by blocks of programmed code. Input audio analog signals are converted to parallel data digital signals whereupon the digital signals are input for processing. After processing, the resultant signals are passed to a 16-bit digital-to-analog converter where either the compressed or expanded digital voice data signal is converted back into an audio frequency analog signal for either transmission or communication on an output device.

EP0342686A3, drawing sheet 1
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Projected expiry passed 19 May 2009, 17.3 years ago.

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