Apparatus for seeking a track of an optical information carrier

Details Apparatus for seeking a track of an optical information carrier Apparatus for seeking a track of an optical information carrier

1985-01-02

1989-03-07

Psitos, Aristotelis M.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 43, 360 7703, G11B 700, G11B 2110

Patent

active

048113166

ABSTRACT:
Method and apparatus for seeking a desired one of a plurality of tracks formed on an optical information carrier are disclosed. The tracks are scanned by a light spot traversing the tracks, the tracks traversed by the light spot are detected, and the tracks detected are counted by a counter. When the light spot traverses a defect area on the track, the track which is not detected because of the defect area is also counted by the counter.

REFERENCES:
patent: 4106058 (1978-08-01), Romeas et al.
patent: 4138663 (1979-02-01), Lehureau et al.
patent: 4285015 (1981-08-01), Rose et al.
patent: 4409627 (1983-10-01), Eto et al.
patent: 4484319 (1984-11-01), Koishi et al.
patent: 4536863 (1985-08-01), Giddings
Translation of Office Action dated 26 Oct. 1987, re German Patent Application P3500521.1-53.

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