Vehicle security system with low power transmitter

Details Vehicle security system with low power transmitter Vehicle security system with low power transmitter

1998-06-16

1999-10-26

Paladini, Albert W.

Electrical transmission or interconnection systems

Vehicle mounted systems

Automobile

307 102, 340426, 340539, 34082569, 375310, B60R 2510

Patent

active

059734124

ABSTRACT:
A low power transmitter for use in a vehicle security system includes an oscillator that is isolated from a transmitter antenna. An amplifier is coupled between the oscillator and the antenna to achieve the isolation. The amplifier and the isolator are tied to a single signal source so that each is initiated at the same time. The amplifier has a faster turn-on time than the oscillator so that the amplifier is fully operational at the instant it receives an output signal from the oscillator. The amplifier amplifies the single frequency of the oscillator and that amplified signal is transmitted by the antenna to a controller, which responsively controls the vehicle security system.

REFERENCES:
patent: 4110738 (1978-08-01), Sattin
patent: 4413261 (1983-11-01), Greenberg
patent: 4733215 (1988-03-01), Memmola
patent: 5132660 (1992-07-01), Chen et al.

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