Record carrier on which information is stored in an...

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G - Physics

11

B

352/32.2

G11B 7/00 (2006.01) G11B 7/007 (2006.01) G11B 7/09 (2006.01) G11B 7/12 (2006.01) G11B 17/00 (2006.01) G11B 27/10 (2006.01) H04N 5/76 (2006.01)

Patent

CA 1038078

ABSTRACT: A record carrier is described on which information is stored in an optically readable structure of trackwise arranged areas and inter- mediate areas. By giving the information tracks periodical excursions in a direction transverse to the direction of reading, the period of the excursions being substantially grater than the average period of the areas and the amplitude of the excursions being smaller than the width of the tracks, a control signal for centring the read beam of radiation on an information track can be obtained without the use of additional optical means.

211288

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