Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use
Patent
1995-07-17
1997-10-21
Hofsass, Jeffery
Communications: electrical
Land vehicle alarms or indicators
Of burglary or unauthorized use
340429, 340541, 340566, G08B 1300
Patent
active
056800967
ABSTRACT:
A monitoring of a vehicle interior is effected by detecting sound waves in a vehicle interior, either from an incursion source or as reflected as echo waves and decomposing the electrical signals representing those detected sound waves into measurement vectors which are compared with sample vectors in a neural network so that a correlation parameter is generated which triggers an alarm when the correlation parameter indicates incursion. The system can respond first to glass breakage before an echo system is used to then further establish the nature of the incursion.
REFERENCES:
patent: 4952931 (1990-08-01), Serageldin et al.
patent: 5229748 (1993-07-01), Ehringer et al.
patent: 5376919 (1994-12-01), Rickman
patent: 5389911 (1995-02-01), Madau
patent: 5424711 (1995-06-01), Muller et al.
patent: 5510765 (1996-04-01), Madau
Dubno Herbert
Hofsass Jeffery
Kiekert Aktiengesellschaft
Lefkowitz Edward
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