发明授权
US07287118B2 Maintaining an average erase count in a non-volatile storage system
有权
在非易失性存储系统中维护平均擦除次数
- 专利标题: Maintaining an average erase count in a non-volatile storage system
- 专利标题(中): 在非易失性存储系统中维护平均擦除次数
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申请号: US11362666申请日: 2006-02-25
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公开(公告)号: US07287118B2公开(公告)日: 2007-10-23
- 发明人: Robert C. Chang , Bahman Qawami , Farshid Sabet-Sharghi
- 申请人: Robert C. Chang , Bahman Qawami , Farshid Sabet-Sharghi
- 申请人地址: US CA Milpitas
- 专利权人: SanDisk Corporation
- 当前专利权人: SanDisk Corporation
- 当前专利权人地址: US CA Milpitas
- 代理机构: Anderson, Levine & Lintel
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
Methods and apparatus for maintaining an average erase count in a system memory of a non-volatile memory system are disclosed. According to one aspect of the present invention, a method for determining an average number of times each block of a number of blocks within a non-volatile memory of a memory system has been erased includes obtaining an erase count for each block that indicates a number of times each block has been erased. Once all the erase counts have been obtained, the erase counts are summed, and an average erase count that indicates the average number of times each block of the number of blocks has been erased is created by substantially dividing the sum by the number of blocks.