Device for switching two digital trains

Details Device for switching two digital trains Device for switching two digital trains

1980-07-09

1982-11-16

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

307269, 371 8, H04Q 900, H03K 513

Patent

active

043597181

ABSTRACT:
A switching device for transmitting one only of two incoming digital trains in response to a switching demand signal, the digital trains containing identical data signals and clock signals at the same frequency, comprising a switching circuit for the data signals and a switching circuit for the clock signals, and a circuit for controlling the switching circuits which delivers a signal whose changes of state occur, after a change of state of the switching demand signal, only from the moment when the two clock signals are in the same logic state.

REFERENCES:
patent: 4009469 (1977-02-01), Boudreau et al.
patent: 4017828 (1977-04-01), Watanabe et al.
patent: 4239982 (1980-12-01), Smith et al.

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