Security system for an environment
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 14, 1992
Grant Date -
N/A
app pub date -
Aug 3, 1990
filing date -
Feb 16, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a security system for an environment such as a building, safe or motor vehicle. The security system can be disarmed only by using a voltage level which exceeds the voltage level normally available in the environment. The security system comprises means for disarming the system, such means being responsive only to a voltage level exceeding the voltage level normally available in the environment. The security system further comprises means, including a capacitor, for generating a disarming voltage level which exceeds the first voltage level and to which the disarming means is responsive so as to disarm the system.
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