Method and apparatus for detecting tracking errors

Details Method and apparatus for detecting tracking errors Method and apparatus for detecting tracking errors

G - Physics

11

B

G11B 15/05 (2006.01) G11B 15/467 (2006.01) G11B 27/36 (2006.01)

Patent

CA 2042899

PATENT 390100-2382 METHOD AND APPARATUS FOR DETECTING TRACKING ERRORS ABSTRACT OF THE DISCLOSURE Tracks scanned by a playback head are provided with a first signal recorded in every nth track, a second signal recorded in a track which precedes and is adjacent to each nth track and a third signal recorded in a track which follows and is adjacent to each nth track. When a preceding track is scanned, the second signal recorded therein is detected; and at a time delayed from the detection of that second signal, the first signal picked up as a crosstalk component is sensed. When a following track is scanned, the third signal recorded therein is detected; and at a time delayed from the detection of the third signal, the first signal picked up as a crosstalk component is sensed. The difference between the first signal sensed when a preceding track is scanned and the first signal sensed when a following track is scanned is indicative of a tracking error. -i-

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