Remote keyless entry system with two modes of demodulation

Details Remote keyless entry system with two modes of demodulation Remote keyless entry system with two modes of demodulation

2006-09-05

2006-09-05

Lee, Benjamin C. (Department: 2612)

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

C340S426130, C340S426360, C340S539100, C340S870030, C340S870030, C340S870030, C455S132000, C455S142000, C375S320000, C375S329000, C375S334000

Reexamination Certificate

active

07102498

ABSTRACT:
A remote signaling receiver system includes a receiver that operates in two different modes of demodulation to accommodate different types of signals from different types of transmitting devices. A first demodulator, preferably an ASK demodulator, is adapted to process signals from a signal transmitter that generates a first type of signal. A second demodulator, preferably one that is not sensitive to amplitude modulation such as a FSK demodulator, is adapted to process signals received from at least one other type of device, which provides a second type of signal. A system designed according to this invention is particularly useful as a remote keyless entry system for a vehicle where one or more sensors are provided on the vehicle to provide an indication of a chosen condition of one or more of the vehicle components.

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European Search Report completed Mar. 17, 2003.

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