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TRANSMITTER MODULATION SWITCHING

  • US 20080136590A1
  • Filed: 02/13/2008
  • Published: 06/12/2008
  • Est. Priority Date: 05/27/2005
  • Status: Active Grant
First Claim
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1. A method of receiving a signal with a receiver of a remote keyless entry system comprising the steps of:

  • a) determining that a received signal strength indicator (RSSI) is saturated such that undesired radio frequency signals prevent clear reception of a desired Amplitude Shift Keyed signal;

    b) switching a receiver to Frequency Shift Keyed Modulation responsive to determining that the RSSI is saturated; and

    c) sending a signal to a remote transmitter instructing the remote transmitter to send an FSK modulated signal.

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