Method and apparatus for recording and reproducing disk-type rec

Details Method and apparatus for recording and reproducing disk-type rec Method and apparatus for recording and reproducing disk-type rec

1997-05-19

2000-08-22

Faber, Alan T.

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

360 7814, 360 7708, 360 48, 360125, G11B 5596

Patent

active

061081582

ABSTRACT:
A disk type recording and reproducing apparatus includes a disk type recording medium, and a dual head including a reading head and a writing head. A center of the core of the reading head is shifted in the radial direction of the disk type recording medium relative to a center of the core of the writing head. The disk type recording medium has a plurality of recording tracks each having a plurality of sectors. Each of the sectors has an ID division provided ahead of a data division disposed in the circumferential direction of the disk type recording medium. The ID division has recorded therein identification information identifying the sector. A center line of the ID division is shifted in the radial direction of the disk type recording medium relative to a center line of the data division by a distance equal to a distance by which the center of the core of the reading head is shifted in the radial direction of the disk type recording medium relative to the center of the core of the writing head. The data division has identification information identifying the sector stored in a position ahead of data to be recorded and reproduced.

REFERENCES:
patent: 4802033 (1989-01-01), Chi
patent: 5073833 (1991-12-01), Best et al.
patent: 5235478 (1993-08-01), Hoshimi et al.
patent: 5257149 (1993-10-01), Meyer
patent: 5317461 (1994-05-01), Okamoto et al.
patent: 5353170 (1994-10-01), Fung et al.
patent: 5682274 (1997-10-01), Brown et al.
Nikkei Electronics, No. 537, Sep. 30, 1991, pp. 77-106 (in Japanese).

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