Dynamic information storage or retrieval – Condition indicating – monitoring – or testing – Including radiation storage or retrieval
Patent
1995-05-25
1996-10-29
Hindi, Nabil Z.
Dynamic information storage or retrieval
Condition indicating, monitoring, or testing
Including radiation storage or retrieval
369 47, 369 54, 369 32, 369 4428, 369 7804, G11B 700
Patent
active
055703321
ABSTRACT:
The present invention is a method for decreasing rotational latency in systems which include a data retrieval element and a rotating medium. The method requires that the rotating medium be divided into a plurality of discrete angular regions. For each discrete angular region, a number of cylinders that may be traversed by the data retrieval element during a single revolution of the medium is identified. A rotational latency assigned to each discrete angular region based on a current location of the retrieval element. A command queue array is searched for a command that addresses a location within a range of cylinders determined by the number of cylinders in the discrete angular region having the smallest rotational latency. Finally, the command addressing a location in the range of cylinders in the selected discrete angular region of the medium is executed.
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Heath Mark A.
Nguyen Bang C.
Pruett D. Christopher
Edun Muhammad N.
Hindi Nabil Z.
Seagate Technology Inc.
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