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1. 发明申请

WO2012008732A2 DEVICE AND METHOD FOR MANAGING FLASH MEMORY USING PAGE UNIT MAPPING 审中-公开
标题翻译：使用页面单元映射来管理闪存的设备和方法
公开(公告)号：WO2012008732A2
公开(公告)日：2012-01-19
申请号：PCT/KR2011005102
申请日：2011-07-12
申请人： EWBM KOREA CO LTD , SONG YONG-HO , JUNG SANG-HYUK , LEE SANG-YONG
发明人： SONG YONG-HO , JUNG SANG-HYUK , LEE SANG-YONG
IPC分类号： G06F12/06 , G06F12/08
CPC分类号： G06F12/0246 , G06F11/1441 , G06F2212/1032 , G06F2212/7201
摘要： Disclosed are a device and a method for managing a flash memory using a page unit mapping. A mapping information generation unit divides pages which constitute blocks into a plurality of page groups, and generates first mapping information to be recorded on preliminary areas of pages that belong to a first page group and second mapping information to be recorded on preliminary areas of pages that belong to the remaining page groups. When a write operation for each page is performed, a mapping information recording unit accumulatively records the mapping information of the pages in the preliminary areas, on which the write operation is performed, and the mapping information of the pages which precede the pages on which the writing operation is performed. In case of a power failure, a mapping information restoration unit restores a mapping table on the basis of the integrated mapping information which is recorded on the preliminary areas of recent pages or representative pages of the page groups that constitute each block.
摘要翻译：公开了一种使用页面单元映射来管理闪存的设备和方法。映射信息生成单元将构成块的页划分成多个页组，并且生成要记录在属于第一页组的页的初步区域上的第一映射信息和要记录在页面的初步区域上的第二映射信息，属于剩下的页面组。当执行每个页面的写入操作时，映射信息记录单元累积地记录在其上执行写入操作的预备区域中的页面的映射信息和页面之前的页面的映射信息，执行写入操作。在断电的情况下，映射信息恢复单元基于记录在构成每个块的页面组的最近页面的初步区域或代表页面上的集成映射信息来恢复映射表。

2. 发明申请

WO2012008731A3 DEVICE AND METHOD FOR MANAGING FLASH MEMORY USING BLOCK UNIT MAPPING 审中-公开
标题翻译：使用块单元映射来管理闪存的设备和方法
公开(公告)号：WO2012008731A3
公开(公告)日：2012-05-03
申请号：PCT/KR2011005101
申请日：2011-07-12
申请人： EWBM KOREA CO LTD , SONG YONG-HO , JUNG SANG-HYUK , JUNG HOE-SEUNG
发明人： SONG YONG-HO , JUNG SANG-HYUK , JUNG HOE-SEUNG
IPC分类号： G06F12/00 , G06F12/16
CPC分类号： G06F12/0246 , Y02D10/13
摘要： Disclosed are a device and a method for managing a flash memory using a block unit mapping. A mapping information generation unit generates mapping information to be recorded on preliminary areas which are set in the pages for constituting blocks. When a write operation for the blocks is performed, a mapping information recording unit records mapping information, which is generated in preparation for the blocks, on the preliminary areas set in the blocks. In case of a power failure, a mapping information restoration unit restores a map table on the basis of the mapping information recorded on the preliminary areas of the blocks. According to the present invention, an additional write operation for recording the mapping information is eliminated, and a restoration cost is remarkably reduced for power failures, thereby improving the whole performance of a flash memory.
摘要翻译：公开了一种使用块单元映射来管理闪存的设备和方法。映射信息生成单元生成要记录在用于构成块的页面中的初步区域上的映射信息。当执行块的写入操作时，映射信息记录单元将在块准备中生成的映射信息记录在块中设置的预备区域上。在电源故障的情况下，映射信息恢复单元基于记录在块的预备区域上的映射信息恢复映射表。根据本发明，消除了用于记录映射信息的附加写操作，并且对于电源故障显着降低了恢复成本，从而提高了闪存的整体性能。

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