Dynamic magnetic information storage or retrieval – General processing of a digital signal – Data in specific format
Patent
1997-01-27
2000-03-07
Hindi, Nabil
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Data in specific format
360 49, 360 7708, 360 7814, G11B 509, G11B 5596
Patent
active
060348305
ABSTRACT:
The present invention relates to an information recording medium for a disk drive having improved recording efficiency. The information recording medium is provided with discrete servo and data areas, with servo information being recorded in the servo areas. Cylinder information included in one or more servo areas is used to locate particular data areas on a disk. In the present invention at least partial cylinder information in one servo area is used to locate more than one data area by dividing the cylinder information into different servo areas, or using the cylinder information in one servo area to locate a data area associated with another servo area. By recording the divided cylinder information in respective ones of the servo areas provided on a given cylinder on the disk, less disk space is needed for cylinder information, so the size of the data areas can be increased and recording efficiency can be improved.
REFERENCES:
patent: 5589998 (1996-12-01), Yu
patent: 5666238 (1997-09-01), Igari et al.
patent: 5694600 (1997-12-01), Khenson et al.
Fujitsu Limited
Hindi Nabil
Neal Regina Y.
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