发明名称 |
Sampled amplitude read channel employing a post processor with a boundary error compensator which compensates for boundary error events in a split-field data sector |
摘要 |
A sampled amplitude read channel is disclosed for reading a data sector recorded on a disk storage medium by detecting an estimated data sequence from a sequence of read signal sample values generated by sampling an analog read signal emanating from a read head positioned over the disk storage medium, the data sector comprising a user data segment and an embedded field comprising a known data segment. A sampling device samples the analog read signal to generate the read signal sample values and a trellis sequence detector detects a preliminary sequence from the read signal sample values. A post processor detects and corrects errors in the preliminary sequence using a syndrome generator responsive to the preliminary sequence representing the user data segment. The syndrome generator generates an error syndrome according to a predetermined error detection code. A boundary error compensator compensates for a boundary error event spanning the user data segment and the known data segment. A guided error corrector, responsive to the error syndrome, corrects errors detected in the preliminary sequence.
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申请公布号 |
US6530060(B1) |
申请公布日期 |
2003.03.04 |
申请号 |
US20000499888 |
申请日期 |
2000.02.08 |
申请人 |
CIRRUS LOGIC, INC. |
发明人 |
VIS MARVIN L.;ZOOK CHRISTOPHER P. |
分类号 |
G11B20/10;G11B20/18;(IPC1-7):H03M13/00 |
主分类号 |
G11B20/10 |
代理机构 |
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地址 |
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