Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format
Patent
1996-06-11
1998-12-22
Psitos, Aristotelis M.
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data in specific format
360 7814, 369 32, G11B 509
Patent
active
058525220
ABSTRACT:
A servo sector forming method for fast detection and corresponding track address correcting method. The track address correcting method for a disk driving/recording apparatus uses as a recording medium a disk comprised of a plurality of track groups. A plurality of tracks are incorporated in each group, each having a data sector and a servo sector with a gray code field separated into a higH.sub.-- gray code field and a low-gray code field, a gap field for supplying the synchronization point of time and a parity bit field in which a group change information is recorded. The gray code read from the higH.sub.-- gray code field and low-gray code field is decoded during a track detection to detect a read address. A correction value for correcting a track address according to the track detection direction is added to the read address to detect the track address. Therefore, track detection time can be maintained in a high-capacity hard disk drive, irrespective of extension of a gray code field.
REFERENCES:
patent: 5381281 (1995-01-01), Shrinkle et al.
Psitos Aristotelis M.
Samsung Electronics Co,. Ltd.
Wamsley Patrick
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