Vehicle repeater prioritization system

Details Vehicle repeater prioritization system Vehicle repeater prioritization system

1975-06-25

1977-11-01

Griffin, Robert L.

325 6, 325 22, 325 57, 325 53, H04B 140, H04B 714

Patent

active

040567800

ABSTRACT:
An improved repeater adds on to each mobile transceiver of a radio wave communication system for selectively controlling rebroadcasts to an associated portable station. Novel circuitry within each associated repeater eliminates rebroadcast interference among local units, while keeping retransmission delay at an optimized minimum.
At turn on, detector circuitry senses if a nearby repeater is broadcasting. In response thereto, programmable delay circuitry is activated to a high incremental state. Where no repeater broadcast is sensed, a program signal is transmitted which increments all nearby repeaters to their next higher delay state. On reception of a signal to be rebroadcast, the repeater whose delay circuitry is in the lowest incremental state initiates rebroadcast, thereby inhibiting the remaining units.
A special feature of the programmable delay circuitry is that each repeater is automatically assigned a unique incremental delay time whereby repeater prioritization is positively established. Rebroadcast delay time is kept to a minimum as the system assures that one repeater is at the lowest delay priority.

REFERENCES:
patent: 2932729 (1960-04-01), Yamato et al.
patent: 2987615 (1961-06-01), Dimmer
patent: 3366880 (1968-01-01), Driver
patent: 3532987 (1970-10-01), Turriere
patent: 3571512 (1971-03-01), Quiros
patent: 3745462 (1973-07-01), Trimble
patent: 3955140 (1976-05-01), Stephens et al.

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