Invention Grant
US08898548B1 Methods, data storage devices and systems having variable size ECC page size
有权
方法，具有可变大小ECC页面大小的数据存储设备和系统
- Patent Title: Methods, data storage devices and systems having variable size ECC page size
- Patent Title (中): 方法，具有可变大小ECC页面大小的数据存储设备和系统
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Application No.: US13594696Application Date: 2012-08-24
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Publication No.: US08898548B1Publication Date: 2014-11-25
- Inventor: Rodney N. Mullendore , Radoslav Danilak , Justin Jones , Andrew J. Tomlin
- Applicant: Rodney N. Mullendore , Radoslav Danilak , Justin Jones , Andrew J. Tomlin
- Applicant Address: US CA Irvine
- Assignee: Western Digital Technologies, Inc.
- Current Assignee: Western Digital Technologies, Inc.
- Current Assignee Address: US CA Irvine
- Main IPC: H03M13/00
- IPC: H03M13/00
Abstract:
A data storage device may comprise an array of flash memory devices and a controller coupled thereto, configured to program and read data from the array responsive to received data access commands. The array may comprise a plurality of blocks, each comprising a plurality of flash pages (F-Pages), each of which comprising an integer number of one or more error correcting code pages (E-Pages), at least some of which comprising a data portion and an error correction code (ECC) portion. The controller may be configured to store a plurality of logical pages (L-Pages) in one or more of the plurality of E-Pages, at least some being unaligned with boundaries of the E-Pages; and to adjust, in at least one of the blocks, the size of the ECC portion and correspondingly adjust the size of the data portion of the E-Pages.
Information query
IPC分类:
