Digital anti-theft locking circuit

Details Digital anti-theft locking circuit Digital anti-theft locking circuit

1979-09-26

1982-03-02

Franklin, Lawrence R.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307115, H02J 100, H02J 1300

Patent

active

043180051

ABSTRACT:
An object of the present invention is the provision of a new and improved vehicle anti-theft device wherein electrical switches are located in the operator compartment of the vehicle and must be actuated in proper sequence to transmit simple make or break functions through wires leading to electronic circuitry that is located in a locked area, and which controls the ignition circuit. Additional code actuated circuitry is provided to permit authorized personnel, e.g. parking attendants, to operate the vehicle.

REFERENCES:
patent: 3515340 (1970-06-01), Mika
patent: 3611287 (1971-10-01), Hoff
patent: 3754148 (1973-08-01), Nye
patent: 3766400 (1973-10-01), Walters
patent: 3812403 (1974-05-01), Gartner
patent: 4158874 (1979-06-01), Ellsberg

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