Security alarm system

Details Security alarm system Security alarm system

1997-01-31

1998-07-14

Hofsass, Jeffery

Communications: electrical

Land vehicle alarms or indicators

Of burglary or unauthorized use

3404255, 340539, 307 102, B60R 2510

Patent

active

057811024

ABSTRACT:
A security alarm system including at least one code signal generator, at least one code signal receiver, a transmitter, and at least one alarm, the at least one code signal generator and the at least one code signal receiver being respectively mounted on the transmitter and the at least one alarm, the code signal generator providing a switch signal and a switch code to the at least one code signal receiver, causing each code signal receiver to alert or disarm the respective alarm subject to the instruction of the switch signal, the at least one alarm being triggered to buzz when receiving no signal from the at least one code signal receiver after a predetermined length of time.

REFERENCES:
patent: 5469151 (1995-11-01), Lavelle et al.
patent: 5563453 (1996-10-01), Nyfelt

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