发明授权
- 专利标题: Unequal error protection scheme for headerized sub data sets
- 专利标题(中): 标题化子数据集的不等错误保护方案
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申请号: US13733847申请日: 2013-01-03
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公开(公告)号: US08869011B2公开(公告)日: 2014-10-21
- 发明人: Roy D. Cideciyan , Robert A. Hutchins , Thomas Mittelholzer , Keisuke Tanaka
- 申请人: International Business Machines Corporation
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 代理机构: Zilka-Kotab, PC
- 主分类号: H03M13/00
- IPC分类号: H03M13/00 ; H04L1/00 ; H03M13/29 ; G06F11/10 ; G11B7/007 ; G11B20/18 ; H03M13/03
摘要:
In one embodiment, a method includes receiving a headerized SDS protected by unequal error protection; decoding a header from the headerized SDS and removing an impact of the header from C1 row parity to obtain a SDS; for a number of iterations: performing C2 column decoding, for no more than a number of interleaves in each row of the SDS: overwriting a number of columns with successfully decoded C2 codewords, erasing a number of C2 codewords, and maintaining remaining columns as uncorrected, performing C1 row decoding; for no more than a number of interleaves in each row of the SDS: overwriting a number of rows with successfully decoded C1 codewords, erasing a number of C1 codewords, and maintaining remaining rows as uncorrected; and outputting the SDS when all rows include only C1 codewords and all columns include only C2 codewords; otherwise, outputting indication that the SDS cannot be decoded properly.
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