Communications: electrical – Land vehicle alarms or indicators – Of burglary or unauthorized use
Patent
1991-02-13
1993-01-19
Ng, Jin F.
Communications: electrical
Land vehicle alarms or indicators
Of burglary or unauthorized use
340428, 340429, 340522, 307 102, B60R 2510
Patent
active
051810107
ABSTRACT:
A vehicle security system provided with a plurality of environmentally sensitive sensors determines the number of environmentally sensitive sensors that are activated, and generates an attack alarm signal when at least a predetermined number of environmentally sensitive sensors are activated, the predetermined number being greater than one, and generates a tamper alarm signal when a number of environmentally sensitive sensors less than the predetermined number are activated. In a system having one or more environmentally insensitive sensors and a plurality of environmentally sensitive sensors, an attack alarm signal is generated when an environmentally insensitive sensor is activated or at least a predetermined number of environmentally sensitive sensors are activated, the predetermined number being greater than one, and a tamper alarm signal is generated when no environmentally insensitive sensor is activated and a number of environmentally sensitive sensors less than the predetermined number are activated. The attack alarm signal is used to activate a first alarm indicator, and the tamper alarm signal is used to activate a second alarm indicator.
REFERENCES:
patent: 3074053 (1963-01-01), McDonough et al.
patent: 3801978 (1974-04-01), Gershberg et al.
patent: 4067411 (1978-01-01), Conley et al.
patent: 4195286 (1980-03-01), Galvin
patent: 4243979 (1981-01-01), Kleinschmidt
patent: 4275390 (1981-06-01), Heywang et al.
patent: 4401976 (1983-08-01), Stadelmayr
patent: 4437089 (1984-03-01), Achard
patent: 4574268 (1986-03-01), Ohnishi
patent: 4612530 (1986-09-01), Kurth et al.
patent: 4638292 (1987-01-01), Mochida et al.
patent: 4660024 (1987-04-01), McMaster
patent: 4688036 (1987-08-01), Hirano et al.
Hofsass Jeffery A.
Ng Jin F.
LandOfFree
Automotive security system with discrimination between tampering does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Automotive security system with discrimination between tampering, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Automotive security system with discrimination between tampering will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-104272