Anti-vandalism detector and alarm system

Details Anti-vandalism detector and alarm system Anti-vandalism detector and alarm system

1998-03-30

2000-11-21

Wu, Daniel J.

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

340429, 340566, 307 102, 180287, B60R 2510

Patent

active

061509272

ABSTRACT:
An anti-vandalism detection and alarm system is disclosed for detecting and reporting the scratching of relatively hard materials such as glass and plastic which generate characteristic sound or vibration frequencies during scratching, and for detecting and reporting the cutting and slashing of relatively soft materials such as fabric, leather and plastic.

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