System for the programmed flashing of warning lights

Details System for the programmed flashing of warning lights System for the programmed flashing of warning lights

1974-06-03

1976-02-10

Caldwell, John W.

Communications: electrical

Digital comparator systems

325 16, 343228, E01F 900

Patent

active

039380807

ABSTRACT:
A system for the programmed flashing of a plurality of highway warning lights includes a plurality of slave receivers each associated with a warning light to be mounted on respective barricades along with one or more master transmitters associated with certain receivers and warning lights. The master transmitter provides a coded signal which causes the warning lights to flash either in synchronization or in a predetermined sequence. Fail safe operation is provided by the use of a substitute master if the original master is disabled. The programmed flashing provides for greater depth perception by the approaching driver.

REFERENCES:
patent: 3257641 (1966-06-01), Campana et al.
patent: 3506959 (1970-04-01), Nunn
patent: 3577122 (1971-05-01), Lapham
patent: 3867718 (1975-02-01), Moe

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