Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use
Patent
1995-07-17
1997-01-28
Hofsass, Jeffery
Communications: electrical
Land vehicle alarms or indicators
Of burglary or unauthorized use
340429, 340566, 367 93, B60R 2510
Patent
active
055981410
ABSTRACT:
A vehicle interior is monitored by storage of sample signals in a memory of a computer and comparison of at least one stored sample signal with a signal picked up on a detector of sound waves from the interior of the vehicle. An identity or similarity test is conducted by the computer and an alarm device is triggered when the predetermined degree of similarity is reached to signal an incursion.
REFERENCES:
patent: 4845464 (1989-07-01), Drori et al.
patent: 4929925 (1990-05-01), Bodine et al.
patent: 5229748 (1993-07-01), Ehringer et al.
patent: 5376919 (1994-12-01), Rickman
patent: 5510765 (1996-04-01), Madau
Bollerott Michael
Bresser Bertram
Grasmann Ullrich
Obergriesser Frank
Dubno Herbert
Hofsass Jeffery
Kiekert Aktiengesellschaft
Wu Daniel J.
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