Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use
Patent
1991-01-14
1992-06-02
Crosland, Donnie L.
Communications: electrical
Land vehicle alarms or indicators
Of burglary or unauthorized use
307 103, 307 105, 340542, 340543, 340555, 34082531, 34082532, 361173, B60R 2510
Patent
active
051190656
ABSTRACT:
A vehicle anti-theft device includes a lock body carried on the vehicle and having a key receiving a slot. A pair of bore holes are spaced apart from each other in a predetermined pattern and extend through the lock body, which is transparent to a particular frequency of electromagnetic radiation. The key includes a first radiation reflective area aligned with one of the bore holes and a second non-reflective area aligned with the other bore hole. A systems controller includes a pair of radiation emitters and associated radiation detectors. A pair of fiber optic cables connect the radiation emitters and the radiation detectors to the bore holes. The systems controller generates control signals in response to radiation reflected from the key through the optic cables. If a proper pattern of radiation is reflected through the optic cables, the vehicle will be operated in a normal manner. If an improper pattern of reflective radiation is detected, an alarm system will be activated and the vehicle will be blocked from further operation.
REFERENCES:
patent: 2953689 (1960-09-01), Becker
patent: 3029345 (1962-04-01), Douglas
patent: 3344629 (1967-10-01), Burney
patent: 3347072 (1967-10-01), Rose
patent: 3634880 (1972-01-01), Hawkins
patent: 3671752 (1972-06-01), Bostrom
patent: 3733862 (1973-05-01), Killmeyer
patent: 3846640 (1974-11-01), Mihlhauser
patent: 3902075 (1975-08-01), Oros
patent: 3902342 (1975-09-01), Zucker et al.
patent: 4127018 (1978-11-01), Brand
patent: 4240516 (1980-12-01), Henderson et al.
patent: 4274080 (1981-06-01), Brunken
patent: 4292628 (1981-09-01), Sadler
patent: 4298792 (1981-11-01), Granholm et al.
patent: 4347545 (1982-08-01), Weishaupt et al.
patent: 4369481 (1983-01-01), Early
patent: 4438426 (1984-03-01), Adkins
patent: 4672225 (1987-06-01), Hanisko et al.
patent: 4697171 (1987-09-01), Suh
patent: 4777377 (1988-10-01), Jeter
patent: 4805722 (1989-02-01), Keating et al.
patent: 4926160 (1990-05-01), Hwang
patent: 4996514 (1991-02-01), Sunami
patent: 5043593 (1991-08-01), Tsutsumi et al.
Crosland Donnie L.
Popovici Dov
LandOfFree
Vehicle protection system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle protection system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle protection system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2231894