Warning signal generating device for vehicle

Details Warning signal generating device for vehicle Warning signal generating device for vehicle

1981-12-30

1985-11-26

Caldwell, Sr., John W.

Communications: electrical

Selective

Having indication or alarm

340 52D, 340329, B60Q 100

Patent

active

045556903

ABSTRACT:
An oscillator and frequency divider provide a plurality of different frequency signals in response to any indication of vehicle abnormality. A plurality of switches indicate vehicle status such as a door, ignition and the like. A gate circuit having a plurality of gates passes one of said frequency signals at any one time in response to the particular vehicle abnormality indicated by a control circuit responsive to the switches. An alarm signal is generated having a frequency that is a function of the signal passed through the gate circuit.

REFERENCES:
patent: 3683346 (1972-08-01), Horton
patent: 4031527 (1977-06-01), Yanagishima
patent: 4187670 (1980-02-01), Okano
patent: 4193060 (1980-03-01), Slavin
patent: 4195285 (1980-03-01), Bukala
patent: 4353055 (1982-10-01), Kawakatsu

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