Tracking method and apparatus for optical recording medium

Details Tracking method and apparatus for optical recording medium Tracking method and apparatus for optical recording medium

G - Physics

11

B

352/32.2, 352/53

G11B 7/09 (2006.01)

Patent

CA 1298654

TRACKING METHOD AND APPARATUS FOR OPTICAL RECORDING MEDIUM ABSTRACT OF THE DISCLOSURE A tracking method for reading/writing data with respect to an optical recording medium having clock tracks each formed of clock bits of optical patterns and data tracks. The present invention features by: irradiating a pair of light beams onto a pair of clock tracks, between which a data track to be written/read is positioned, from an optical head side, with the beams so deviated from each other in a direction of a relative movement of the optical head with respect to the medium that beam detection signals may have a phasial difference therebetween; detecting reflections of the respective light beams from the clock tracks; obtaining a difference signal between said reflections from the detection signals; extracting a tracking-error signal from the difference signal; and detecting a zero-crossing point of the difference signal to extract a clock signal.

549784

Affiliated with

Also associated with

Rating

Tracking method and apparatus for optical recording medium does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Tracking method and apparatus for optical recording medium, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tracking method and apparatus for optical recording medium will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1200294