Patent ID: 6028827
Filing Date: 2000-02-22
Classification: G11B

Abstract:
Apparatus for recovering data from a plurality of data tracks of an optical disk, the apparatus comprising:a pickup assembly comprising a light source and a plurality of detectors, the light source providing an illumination beam, the illumination beam reflecting from multiple adjacent data tracks, the reflected beam focused on the detectors to provide a plurality of data streams corresponding to data stored in the plurality of data tracks;circuitry for generating a reference clock signal from a first data stream;circuitry for deriving from the reference clock signal a first data clock signal having a phase and frequency suitable for sampling the first data stream;circuitry for deriving from the reference clock signal a second data clock signal having a phase and frequency suitable for sampling a second data stream; andcircuitry for sampling the first and second data streams responsive to the first and second data clock signals, respectively, to recover data encoded therein.