Optical disc and optical disc address reading apparatus and...

Details Optical disc and optical disc address reading apparatus and... Optical disc and optical disc address reading apparatus and...

G - Physics

11

B

G11B 7/007 (2006.01) G11B 7/0037 (2006.01) G11B 7/005 (2006.01) G11B 7/24 (2006.01) G11B 20/12 (2006.01) G11B 20/18 (2006.01) G11B 27/19 (2006.01) G11B 27/24 (2006.01) G11B 20/10 (2006.01) G11B 27/30 (2006.01)

Patent

CA 2396780

An optical disk attached with marks capable of being detected with a high accuracy and simplicity and used for scattered addresses. A scattered address comprises a synchronous mark, positive mark and negative mark which are formed along a groove by making a wobbling groove discontinuous partly or deforming it partly.

L'invention concerne un disque optique solidaire de marques que l'on peut détecter avec une exactitude et une simplicité élevées et utiliser pour des adresses isolées. Une adresse isolée comporte une marque synchrone, une marque positive et une marque négative formées le long d'une rainure par la constitution d'une rainure ondulante partiellement discontinue ou par sa déformation partielle.

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