Data communication system

Details Data communication system Data communication system

1988-06-28

1990-06-26

Griffin, Robert L.

Communications: electrical

Continuously variable indicating

With meter reading

34082502, 340310R, 370 851, 370 16, 455 8, H04Q 500, H04Q 900

Patent

active

049375695

ABSTRACT:
The signalling network has a main control unit which can communicate with any of a number of home units each associated with a separate household. Some home units have signal-repeater facilities. Each of the control units and the home units has an address identity unique in the network.
When a signal is sent out targeted at a specific home unit, the main control unit monitors for acknowledgement of reaching its destination. If no such acknowledgement is received, the main control unit sends out the signal again, but re-routed via an intermediate home unit with a repeater facility.

REFERENCES:
patent: 3693155 (1972-09-01), Crafton et al.
patent: 3944723 (1976-03-01), Fong
patent: 3967264 (1976-06-01), Whyte et al.
patent: 4210901 (1980-07-01), Whyte et al.
patent: 4230989 (1980-10-01), Buehrle
patent: 4399531 (1983-08-01), Grande et al.
patent: 4427968 (1984-01-01), York
patent: 4550397 (1985-10-01), Turner et al.
patent: 4651318 (1987-03-01), Luderer

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