Invention Grant
- Patent Title: Selective error protection over multiple sectors
- Patent Title (中): 多扇区选择性错误保护
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Application No.: US13646386Application Date: 2012-10-05
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Publication No.: US08472295B1Publication Date: 2013-06-25
- Inventor: Ming Jin , Jun Xiao , Fan Zhang , Haitao Xia
- Applicant: LSI Corporation
- Applicant Address: US CA Milpitas
- Assignee: LSI Corporation
- Current Assignee: LSI Corporation
- Current Assignee Address: US CA Milpitas
- Agency: Suiter Swantz pc llo
- Main IPC: G11B7/00
- IPC: G11B7/00 ; G11B5/09

Abstract:
The present disclosure is directed to selectively protecting a portion of a track including a plurality of data sectors. The data sectors include a plurality of user sectors and one or more parity sectors. Protected bits are designated in each of the of data sectors. The protected bits are selected to have matching bit indices across the data sectors resulting in a parallel alignment of the protected bits across the user and parity sectors. One or more selections of protected bits of the user sectors are encoded across matching bit indices to generate data values in the corresponding protected bits of the parity sectors. At least one portion of at least one failed sector is recoverable by decoding at least one selection of the protected bits when a sector error occurs at a protected bit.
Information query
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