Invention Grant
US08856618B2 Scalable repair block error correction for sequential multiple data blocks in a magnetic data storage device
有权
磁数据存储设备中的顺序多个数据块的可扩展修复块错误校正
- Patent Title: Scalable repair block error correction for sequential multiple data blocks in a magnetic data storage device
- Patent Title (中): 磁数据存储设备中的顺序多个数据块的可扩展修复块错误校正
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Application No.: US13645309Application Date: 2012-10-04
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Publication No.: US08856618B2Publication Date: 2014-10-07
- Inventor: Kei Akiyama , Sridhar Chatradhi , Jonathan Darrel Coker , Martin Aureliano Hassner , Kirk Hwang , Roger William Wood
- Applicant: HGST Netherlands B.V.
- Applicant Address: NL Amsterdam
- Assignee: HGST Netherlands B.V.
- Current Assignee: HGST Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agent G. Marlin Knight
- Main IPC: G11C29/00
- IPC: G11C29/00
Abstract:
A technique for recovering of “squeezed” sectors in a set of sequential sectors such as are used in Shingled Magnetic Recording (SMR) is described. Embodiments of the invention use a programmable erased sector recovery scheme, which is a concatenation of a “Cauchy-type” track erasure correction code, together with a media-error correction code that generates N-weighted parity-sectors per track and is capable of replacing up to N-erased sectors per track in any possible combination.
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