Vehicle antitheft device using transponder and having illuminate

Details Vehicle antitheft device using transponder and having illuminate Vehicle antitheft device using transponder and having illuminate

1996-07-31

1998-03-17

Elms, Richard T.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

180287, 307 108, 362100, B60R 2500

Patent

active

057290571

ABSTRACT:
An anti-theft device for a motor vehicle includes a key having a transponder. A lock has a keyhole for receiving the key. An antenna is in the vicinity of the lock. A control unit for controlling the antenna sends starting signals to the transponder and receives answer signals from the transponder. An assembly is turned on or off if the answer signals correspond to set-point signals. The antenna has a lighting device being controlled by the control unit for illuminating a region around the keyhole, at least before the key is inserted.

REFERENCES:
patent: 4234909 (1980-11-01), Cotroneo
patent: 5043593 (1991-08-01), Tsutsumi et al.
patent: 5532522 (1996-07-01), Dietz et al.
patent: 5597227 (1997-01-01), Bergen et al.
Betriebsanleitung Mazda 323, 1987, pp. 2-3 and 3-3; Mazda 323 Manual.

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