Process and apparatus for monitoring a vehicle interior

Details Process and apparatus for monitoring a vehicle interior Process and apparatus for monitoring a vehicle interior

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

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