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System and method for training a trainable transmitter

  • US 7,889,050 B2
  • Filed: 08/31/2006
  • Issued: 02/15/2011
  • Est. Priority Date: 08/31/2006
  • Status: Active Grant
First Claim
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1. A method for training a trainable transmitter in a vehicle, the method comprising:

  • receiving a request to enter a training mode of the trainable transmitter from a user;

    beginning a training mode of the trainable transmitter;

    receiving a control signal from an original transmitter associated with a remote control system;

    detecting a frequency and control data of the control signal;

    determining if the control signal is a fixed code signal or a rolling code signal;

    if the control signal is a fixed code signal, storing the detected frequency and control data for use during normal operation of the trainable transmitter without shifting the detected frequency; and

    if the control signal is a rolling code signal, comparing the detected control signal frequency to a plurality of predetermined frequencies and based on the comparison, shifting the detected frequency to match one of the predetermined frequencies, wherein the shifting occurs only when the control signal is a rolling code signal.

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