Track seek method and device for use with an optical information

Details Track seek method and device for use with an optical information Track seek method and device for use with an optical information

1994-11-29

1996-05-07

Young, W. R.

Dynamic information storage or retrieval

With servo positioning of transducer assembly over track...

Optical servo system

369 32, 369 54, 369 58, G11B 700

Patent

active

055153496

ABSTRACT:
A position detector detects a relative position of an optical head to a recording medium, and on the basis of the thus-detected relative position, a position detection signal is generated in response to movement of a light beam over a predetermined distance. Then, in response to the position detection signal, a comparison is made between the number of track crossing counted for the predetermined movement distance on the basis of reception of reflection of the light beam, and a predetermined reference value for the predetermined movement distance. Then, track crossing count compensation data is generated which corresponds to a difference between the counted number of track crossing and the reference value, and the counted number of track crossing is corrected by use of such compensation data.

REFERENCES:
patent: 4745587 (1988-05-01), Maeda et al.
patent: 4866687 (1989-09-01), Kasai et al.
patent: 5307333 (1994-04-01), Ikeda et al.

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