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APPARATUS AND METHOD FOR GENERATING A TRACKING ERROR SIGNAL IN AN OPTICAL DISC DRIVE

  • US 20060007807A1
  • Filed: 07/12/2005
  • Published: 01/12/2006
  • Est. Priority Date: 07/08/2004
  • Status: Active Grant
First Claim
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1. An apparatus for generating a tracking error signal, the apparatus comprising:

  • an optical sense module for generating a first analog signal and a second analog signal according to the signal reflected from an optical disc;

    an ADC (Analog-to-Digital Converter) module coupled to the optical sense module for translating the first and second analog signals into a first and a second digital signals respectively;

    a delay module coupled to the ADC module for delaying the first and second digital signals to generate a first and a second delay signals respectively; and

    a signal generation module coupled to the ADC module and the delay module for generating the tracking error signal according to the first and second digital signals and the first and second delay signals.

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