Information carrier with a magnetic storage layer and...

Details Information carrier with a magnetic storage layer and... Information carrier with a magnetic storage layer and...

G - Physics

11

B

352/21.32

G11B 21/10 (2006.01)

Patent

CA 1111136

ABSTRACT: A system is described for the position. control of a write-read head for information-carriers with a magnetic storage layer, having optical ser- vo tracks. The servo tracks consists of periodical- ly interrupted lines, whose period length, which consists of a line section and an interruption, is constant and whose phase relationship differs for adjacent servo tracks. In the apparatus for reading or writing of the information carrier an optical scanner is provided which is connected to the magnetic write-read head. In the radiation path of the optical scanner a diaphragm is inter- posed which transmits at the most one line section and at least one overlap between two adjacent line sections.

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