Patent
1974-07-08
1976-01-27
Blakeslee, Ralph D.
179 15AQ, 179 15BM, H04J 300
Patent
active
039353915
ABSTRACT:
An automatic telecommunication switching system is disclosed for switching TDM speech signals and data signals between calling and called parties. The system includes auxiliary circuits. Such circuits may include a monitor or comparator to detect the presence of a particular code. They may include a code converter for receiving a code of one variety and transmitting one of another variety or for changing the speed between reception and transmission.
REFERENCES:
patent: 3727005 (1973-04-01), Franaszek
patent: 3740483 (1973-06-01), Pedersen
Walsh William Arthur George
Weir Donald Adams
Blakeslee Ralph D.
International Standard Electric Corporation
Raden James B.
Warner Delbert P.
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