Disk drive maintaining a substantially constant host transfer rate when reading data from varying data rate data tracks across multiple disk surfaces
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United States of America Patent
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Mar 13, 2012
Grant Date -
N/A
app pub date -
Nov 23, 2005
filing date -
Nov 23, 2005
priority date (Note) -
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Abstract
A disk drive is disclosed having a plurality of disk surfaces, wherein each disk surface comprises a plurality of data tracks, and each data track comprises a plurality of data sectors. When a read command is received from a host, data is read from first and second data sectors on first and second disk surfaces, respectively, in response to the read command, wherein the first data sector stores data at a first data rate, and the second data sector stores data at a second data rate substantially less than the first data rate. The data is transferred to the host at a substantially constant average transfer rate. In this manner, the disk drive does not appear abnormal to a benchmark program that reads a plurality of data sectors across multiple disk surfaces.
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