ADPCM transcoder data interface circuit having an encoded enable

Details ADPCM transcoder data interface circuit having an encoded enable ADPCM transcoder data interface circuit having an encoded enable

1987-10-01

1988-11-01

Miller, Charles D.

Coded data generation or conversion

Digital code to digital code converters

To or from differential codes

380 28, H03M 700

Patent

active

047823267

ABSTRACT:
A data interface circuit for use when interfacing between two communication links communicating frames of digital data in PCM and ADPCM formats is provided. The data interface circuit provides control information for selecting one of a plurality of algorithms to control the transformation of data between a plurality of PCM and ADPCM formats. A single encoded control signal is utilized to establish frame boundaries and to select a predetermined one of the plurality of algorithms to use in converting between PCM and ADPCM data.

REFERENCES:
patent: 4079371 (1978-03-01), Shimamura

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