快閃記憶體之可調性管理方法
刊登日期:2014/05/21
  ‧ 專利名稱 非揮發記憶體區塊管理方法
  ‧ 專利證書號 I399644
8356136
  ‧ 專利權人 台灣大學
  ‧ 專利國家
    (申請日)
中華民國 (2009/12/24)
美國 (2010/02/08)
 
  ‧ 發明人/PI 張原豪,郭大維,
  ‧ 單位 資訊工程學系
  ‧ 簡歷/Experience
技術摘要 / Our Technology:
一種非揮發記憶體區塊管理方法,用於非揮發記憶體儲存系統。上述儲存系統包括多個晶片,每一晶片包括多個實體區塊。這些實體區塊組成多個實體區塊集。邏輯空間的每個邏輯區塊可對應一或兩個實體區塊集。當一個邏輯區塊已經對應兩個實體區塊集,而且這兩個實體區塊集已經寫滿資料,如果又有資料要寫入,上述管理方法會分配一個空閒的實體區塊集以儲存所寫入的資料。然後根據預設規則選擇邏輯區塊對應的兩個實體區塊集其中之一,將被選擇的實體區塊集的有效資料複製到空閒的實體區塊集,然後回收並抹除被選擇的實體區塊集。

A block management method applicable to a non-volatile memory storage system is provided. The non-volatile memory storage system includes a plurality of chips. Each chip includes a plurality of physical blocks. The physical blocks form a plurality of physical block sets. Each logical block in a logical space corresponds to at most two physical block sets. In the block management method, when a logical block corresponds to two physical block sets filled with data and more data is to be written, a free physical block set is allocated for storing the data. Then, one of the two physical block sets corresponding to the logical block is selected according to a predetermined criterion. The valid data in the selected physical block set is copied into the free physical block set. Next, the selected physical block set is erased and collected to the pool of free physical block sets.



專利簡述 / Intellectual Properties:




 

聯繫方式 / Contact:
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