Data communication system with channel switches

Details Data communication system with channel switches Data communication system with channel switches

1993-01-08

1995-05-09

Horabik, Michael

Communications: electrical

Continuously variable indicating

With meter reading

34082503, 370 16, 455 8, H04J 314

Patent

active

054144140

ABSTRACT:
A data communication system which operates by the use of a main channel, and also a protection channel to back up the main channel using a channel switching circuit connected between a receiver and a transmitter. A receiver side channel switch includes a delay function for delaying the main channel data. A transmitter side channel switch includes a delay function for delaying the protection channel data when switching channels when a transmission fault occurs. The thus delayed data is effective for preventing a stoppage of data flow even in the event of a sudden transmission fault.

REFERENCES:
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patent: 4047151 (1977-09-01), Rydbeck et al.
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patent: 4490830 (1984-12-01), Kai et al.
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patent: 4797903 (1989-01-01), Itoh
patent: 4799237 (1989-01-01), Itoh
patent: 4811359 (1989-03-01), Nakajima et al.
Siemens (Telcom Report), No. 9, Mar. 1986, pp. 181-186; H. Barth et al.: "Ersatzschalteinrichtungen fur Digitalrichtfunkverbindungen".

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