×

Apparatus and method of calibrating a keyless transmitter

  • US 20030063012A1
  • Filed: 09/28/2001
  • Published: 04/03/2003
  • Est. Priority Date: 09/28/2001
  • Status: Active Grant
First Claim
Patent Images

1. A crystal-less remote keyless entry system, comprising:

  • a microprocessor;

    a radio frequency circuit electrically coupled to the microprocessor;

    a timing circuit electrically coupled to the microprocessor, the timing circuit being a unitary part of the microprocessor; and

    a memory electrically coupled to the microprocessor, the memory being programmed with a compensation that adjusts an output frequency of the timing circuit such that the output frequency of the timing circuit does not coincide with a frequency discontinuity that occurs within an output of the timing circuit.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×