Dynamic magnetic information storage or retrieval – Automatic control of a recorder mechanism
Reexamination Certificate
2007-01-30
2007-01-30
Tzeng, Fred F. (Department: 2651)
Dynamic magnetic information storage or retrieval
Automatic control of a recorder mechanism
Reexamination Certificate
active
10230690
ABSTRACT:
A hard disk system for storing user data for an information device. The hard disk system includes a non-volatile, IC based memory such as e.g., a memory utilizing MRAM, to non volatilely store system data for the hard disk. Examples of system data include a master list, a list of unused sectors, and a list of defective sectors. In some examples, the master list includes the physical location on a hard disk where data of a file is stored. The non-volatile memory is operably coupled to a data storage system processor and may be implemented on a circuit board with the data storage system processor.
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PCT Search Report PCT/US03/24184 mailed Dec. 11, 2003.
Hansen John P.
Stence Ronald W.
Dolezal David G.
Freescale Semiconductor Inc.
King Robert L.
Tzeng Fred F.
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