Digital carrier-concentrator system with TASI

Details Digital carrier-concentrator system with TASI Digital carrier-concentrator system with TASI

1978-03-13

1979-09-25

Claffy, Kathleen H.

179 15AP, H04J 602

Patent

active

041692144

ABSTRACT:
In a digital carrier-concentration system, utilizing time slot assignment, comprises a delta modulator operable to convert analog signals into a digital binary bit stream, the modulator being responsive to the bit stream to decode a coincident pulse whenever a predetermined number of "ones" or "zeros" occur in the bit stream, a voice detect circuit responsive to the coincident pulse to provide a voice detect output, and a control assigns the stream a time slot in a high bit rate data channel in response to detection of the voice detect output, after a predetermined interval.

REFERENCES:
patent: 3864524 (1975-02-01), Walker
patent: 3927268 (1975-12-01), Sciulli et al.

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