Car audio apparatus

Details Car audio apparatus Car audio apparatus

1992-06-30

1994-09-20

Crosland, Donnie L.

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

340543, 340568, 34082534, 455346, 455348, B60R 2510, G08B 1314

Patent

active

053493265

ABSTRACT:
A car audio apparatus mounted on an automobile and having a function for preventing theft, the car audio apparatus includes a main body portion fixed to the automobile and a front panel detachably mounted to the main body portion of the audio apparatus. The main body portion has a CPU and a first memory for storing a first secret code and the front panel has a second memory for storing a second secret code. The CPU is capable of respectively reading out the first and second secret codes from the first and second memories and comparing the first secret code with the second secret code so that when both secret codes agree, the CPU enables operation of the car audio apparatus and when both of the secret codes do not agree, the CPU inhibits the operation of the car audio apparatus.

REFERENCES:
patent: 4542372 (1985-09-01), Takach, Jr.
patent: 4683462 (1987-07-01), Takeda et al.
patent: 4720700 (1988-01-01), Seibold et al.
patent: 4755799 (1988-07-01), Romano
patent: 5093862 (1992-03-01), Scwartz

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