Conference circuit for a digital communication system

Details Conference circuit for a digital communication system Conference circuit for a digital communication system

1987-12-01

1989-07-04

Shoop, Jr., William M.

Coded data generation or conversion

Digital code to digital code converters

To or from nonlinear codes

370 62, H03M 750

Patent

active

048454974

ABSTRACT:
A 001 conference circuit for a digital communication system in which the analog-to-digital and digital-to-analog converters of at least two subscriber terminal stations have different bandwidth of their processable analog signals or in the code format of the digital signals or in the bit rate of the digital signals. It is not necessary for any conference participant to adapt to the equipment of any one of the other participants because the conference circuit comprises transcoders and corresponding transdecoders of different construction for each conference participant. This anoids the requirement that all conference participants must agree on the same bandwidth, the same code and the same bit rate.
When establishing a conference connection, a control circuit actuates the appropriate transcoder and the corresponding transdecoder required for each conference participant. Each conference participant receives signals from the other participants during the conference, having the same quality as in the case of a connection between only two participants.

REFERENCES:
patent: 4730306 (1988-03-01), Uchida

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