Dynamic magnetic information storage or retrieval – General processing of a digital signal – Address coding
Reexamination Certificate
2006-05-23
2006-05-23
Hudspeth, David (Department: 2651)
Dynamic magnetic information storage or retrieval
General processing of a digital signal
Address coding
C360S048000
Reexamination Certificate
active
07050250
ABSTRACT:
There are provided a storage apparatus and a computer-readable recording medium, on whose storage areas, servo frames are arranged at uniform intervals in a spoke-like pattern. Each of the servo frames has an index bit storing section storing, as an index bit, part of an index pattern, which is operable to identify a storage area. The apparatus and the recording medium have a storage area recognizing unit for recognizing the storage areas based on the index bits, which are obtained by an index bit obtaining unit. The index bits, stored one in each of the index bit storing sections of the servo frames, are adapted to form, when being sequentially arranged, an index bit string in which such an index pattern repeatedly appears.
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ANONYMOUS: “A Distributed Index Method with Fault Tolerance” Research Disclosure, No. 443, Mar. 1, 2001, p. 475, XP002293380, Havant, UK, article No. 443141.
Kagami Yoshiyuki
Kosugi Tatsuhiko
Kubohara Ryuki
Mori Kazunori
Tomita Isamu
Fujitsu Limited
Greer Burns & Crain Ltd.
Hudspeth David
Kapadia Varsha A.
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