Optical information processor

Details Optical information processor Optical information processor

G - Physics

11

B

352/32.2, 352/32

G11B 7/095 (2006.01) G11B 7/007 (2006.01) G11B 7/09 (2006.01) G11B 7/24 (2006.01) G11B 27/30 (2006.01)

Patent

CA 1202416

- 1 - ABSTRACT This invention discloses an optical information processor which comprises a recording medium equipped with mirror areas disposed equidistantly inside an information track recorded by a light beam. A light detector receives diffracted light from the information track by the light beam. A first signal detector differentially processes the signals from the light detector and generates a tracking signal for tracking the information track. A second signal detector detects the signal from the mirror areas of the tracking signal. As a result any offset in the tracking signal is removed by use of the signal from the second signal detector.

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