Anti-theft device for a vehicular electric apparatus

Details Anti-theft device for a vehicular electric apparatus Anti-theft device for a vehicular electric apparatus

1991-05-30

1992-02-25

Yusko, Donald J.

Communications: electrical

Continuously variable indicating

With meter reading

34082531, H04B 100

Patent

active

050917242

ABSTRACT:
When a vehicular electric apparatus, such as an audio apparatus, is switched on, an anti-theft procedure is initiated. The electric apparatus is inhibited from becoming operational if a predetermined code is not input, when the electric apparatus is switched on after it was disconnected from a vehicle battery or after a prescribed period has passed.

REFERENCES:
patent: 4604708 (1986-08-01), Lewis
patent: 4683462 (1987-07-01), Takeda et al.
patent: 4805233 (1989-02-01), Robitschko et al.
patent: 4838377 (1989-06-01), Kozaki et al.
patent: 4914314 (1990-04-01), Hirtz

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