Title:
The higher rank level of the mixed particle size for nonvolatile memory is redundant.
Document Type and Number:
Japanese Patent JP6185993
Kind Code:
B2
Abstract:
Mixed-granularity higher-level redundancy for NVM provides improved higher-level redundancy operation with better error recovery and/or reduced redundancy information overhead. For example, pages of the NVM that are less reliable, such as relatively more prone to errors, are operated in higher-level redundancy modes having relatively more error protection, at a cost of relatively more redundancy information. Concurrently, blocks of the NVM that are more reliable are operated in higher-level redundancy modes having relatively less error protection, at a cost of relatively less redundancy information. Compared to techniques that operate the entirety of the NVM in the higher-level redundancy modes having relatively less error protection, techniques described herein provide better error recovery. Compared to techniques that operate the entirety of the NVM in the higher-level redundancy modes having relatively more error protection, the techniques described herein provide reduced redundancy information overhead.
Inventors:
Chen, Zhengan
Wu, Yun Siang
Wu, Yun Siang
Application Number:
JP2015525458A
Publication Date:
August 23, 2017
Filing Date:
July 23, 2013
Export Citation:
Assignee:
Seagate Technology LLC
International Classes:
G06F11/10; G06F3/06
Domestic Patent References:
| JP2013545202A | ||||
| JP2014507717A | ||||
| JP2004152194A |
Foreign References:
| WO2012075200A1 | ||||
| US20100287448 |
Attorney, Agent or Firm:
Fukami patent office