Car electronic device having antitheft mechanism

Details Car electronic device having antitheft mechanism Car electronic device having antitheft mechanism

1988-02-26

1989-06-13

Rice, Kenneth R.

Motor vehicles

With means for promoting safety of vehicle, its occupant or...

By preventing unauthorized or unintended access or use

340426, 307 102, B60R 2500

Patent

active

048383775

ABSTRACT:
An antitheft mechanism for an electronic device to be used in a car has three modes of operation. A normal operation mode permits continuous operation of the device. A line mode permits normal operation for a limited time after which it is replaced by a theft mode. The theft mode inhibits normal operation of the device until a secret code is entered into the device to return it to the normal mode or until a specified common operation of the device returns it to the line mode.

REFERENCES:
patent: 3718202 (1973-02-01), Brock
patent: 3790933 (1974-02-01), Cort
patent: 4553511 (1985-11-01), Hayakawa et al.

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