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Remote transmitter system and method

  • US 20040037365A1
  • Filed: 08/21/2002
  • Published: 02/26/2004
  • Est. Priority Date: 08/21/2002
  • Status: Active Grant
First Claim
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1. A remote transmitter system for vehicle applications, the system comprising:

  • a remote transmitter for carrying by a user, the remote transmitter being operative to transmit an amplitude modulated signal at a plurality of different carrier frequencies; and

    a receiver for mounting on a vehicle and receiving the amplitude modulated signal wherein the receiver is configured to receive the amplitude modulated signal at a selectable carrier frequency, the receiver including a received signal strength indicator and a data decoder, the receiver being programmed to select the carrier frequency by detecting noise due to unwanted frequency modulated signals based on the received signal strength indicator, detecting noise due to unwanted amplitude modulated signals based on the data decoder, and changing the selected carrier frequency when either noise becomes excessive.

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