Invention Grant
US08429468B2 System and method to correct data errors using a stored count of bit values
有权
使用存储的位值计数来校正数据错误的系统和方法
- Patent Title: System and method to correct data errors using a stored count of bit values
- Patent Title (中): 使用存储的位值计数来校正数据错误的系统和方法
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Application No.: US12695038Application Date: 2010-01-27
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Publication No.: US08429468B2Publication Date: 2013-04-23
- Inventor: Manuel Antonio d'Abreu , Stephen Skala , Carlos Joseph Gonzalez
- Applicant: Manuel Antonio d'Abreu , Stephen Skala , Carlos Joseph Gonzalez
- Applicant Address: US TX Plano
- Assignee: SanDisk Technologies Inc.
- Current Assignee: SanDisk Technologies Inc.
- Current Assignee Address: US TX Plano
- Agency: Toler Law Group, PC
- Main IPC: G06F11/00
- IPC: G06F11/00 ; H03M13/00

Abstract:
In a particular embodiment, at a controller coupled to a memory array, a method includes receiving an indication that a first group of data bits read from the memory array includes errors that are uncorrectable by an error correction coding (ECC) engine. A count of the first group of data bits having a particular bit value may be compared to a prior count of data bits having the particular bit value. In response to determining that the count exceeds the prior count, a bit of the first group of data bits that has the particular bit value and that corresponds to a same memory cell as a corrected data bit of a second group of data bits is identified. A value of the identified bit of the first group may be changed to generate an adjusted group of data bits. The adjusted group of data bits may be provided to the ECC engine.
Public/Granted literature
- US20110185251A1 SYSTEM AND METHOD TO CORRECT DATA ERRORS USING A STORED COUNT OF BIT VALUES Public/Granted day:2011-07-28
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