Technique for insertion of digital data bursts into an adaptivel

Details Technique for insertion of digital data bursts into an adaptivel Technique for insertion of digital data bursts into an adaptivel

1983-12-27

1986-04-08

Griffin, Robert L.

Pulse or digital communications

Repeaters

Testing

375 31, 3701101, 370111, 179 2DP, H04J 312, H04M 1106

Patent

active

045817464

ABSTRACT:
The present invention relates to a transmitter and a receiver for use in a digital communication system which are capable of transmitting and receiving, respectively, a single duplex analog signal channel, such as, for example, a voice channel, and limited short asynchronous data bursts. The transmitter portion includes an encoding means which uses an adaptive companding algorithm in the encoding process while the receiver portion includes a decoding means using the same synchronized algorithm in the decoding process. The transmitter and receiver at each end of a communication channel also include a signaling interface which can interrupt the coding and decoding process to transmit and receive, respectively, an occasional data burst without upsetting the synchronization of the adaptive companding algorithm states at both ends of the channel.

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