Disk, disk device and track center detection method

Dynamic information storage or retrieval – With servo positioning of transducer assembly over track... – Optical servo system

Reexamination Certificate

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Details

C369S044410, C369S275300, C369S053280

Reexamination Certificate

active

06987714

ABSTRACT:
Header regions are formed by dividing a groove or grooves. Each of the header regions is provided with two ID sections G-ID1, G-ID2storing address information and a track center detection mark section, arranged between the two ID sections, so as to be used for detecting the track center.

REFERENCES:
patent: 4748609 (1988-05-01), Yonezawa et al.
patent: 4998234 (1991-03-01), Rees et al.
patent: 5568456 (1996-10-01), Hayashi et al.
patent: 6349011 (2002-02-01), Choi
patent: 2002/0031059 (2002-03-01), Nishida et al.
patent: 01-211247 (1989-08-01), None
patent: 05-250746 (1993-09-01), None
patent: 06-203411 (1994-07-01), None
patent: 7-302428 (1995-11-01), None
patent: 09-161274 (1997-06-01), None
patent: 9-282667 (1997-10-01), None
English Translation of JP 09161274.

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