Method of and apparatus for seeking a desired track by counting

Details Method of and apparatus for seeking a desired track by counting Method of and apparatus for seeking a desired track by counting

1990-06-27

1991-08-20

Richardson, Robert L.

Dynamic information storage or retrieval

Information location or remote operator actuated control

Selective addressing of storage medium

369 44, 360 7804, G11B 2110

Patent

active

050420194

ABSTRACT:
Disclosed is a method of seeking a desired track by scanning a recording medium having a plurality of tracks formed thereon by a light spot in a direction across the tracks, and counting track crossing signals detected from the reflected light or the transmitted light of the spot. In this method, of the track crossing signals, only those signals which are detected within a predetermined time inteval are counted as a correct track crossing signal. An apparatus for carrying out such a method is also disclosed.

REFERENCES:
patent: 4390912 (1983-06-01), Hertrich et al.
patent: 4562562 (1985-12-01), Moriya et al.
patent: 4700056 (1987-10-01), Silvy et al.

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