Sampled amplitude read channel employing pipelined reads to reduce the gap between sectors
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United States of America Patent
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Nov 11, 2003
Issued Date -
N/A
app pub date -
Mar 12, 1997
filing date -
May 12, 1995
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sampled amplitude read channel incorporated within a magnetic disk storage system for reading data recorded tracks on a magnetic medium, where the data comprises user data sectors recorded at varying data rates across a plurality of predefined zones and embedded servo data sectors recorded at the same data rate across the zones. The read channel comprises a timing recovery component for synchronous sampling of a read signal from a magnetic read head positioned over the magnetic medium, a gain control component for adjusting the amplitude of the read signal, and a DC offset component for canceling a DC offset in the read signal. These components are dynamically configured to operate according to whether the read channel is processing user data or embedded servo data.
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