Remote keyless entry system with two modes of demodulation
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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.
18 Citations
19 Claims
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1-15. -15. (canceled)
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16. A remote signaling receiver system comprising:
a microcontroller having a radio frequency channel and an image channel, the microcontroller determining a baud rate of a received wireless communication signal, the microcontroller causing a received wireless communication signal having a first baud rate to be received for processing on the radio frequency channel and causing a wireless communication signal of a second, different baud rate to be received for processing on the image channel. - View Dependent Claims (17, 18, 19)
Specification