公开(公告)号：US20130326123A1

公开(公告)日：2013-12-05

申请号：US13900682

申请日：2013-05-23

Applicant: Sony Corporation

Inventor： Shusuke SAEKI ,  Kenji FUDONO ,  Nobuhiro KANEKO ,  Kazumi SATO

IPC: G06F12/02

CPC classification number: G06F12/0246 ,  G06F2212/7205

Abstract: There is provided a memory management device including a non-volatile memory that performs writing and reading of data on a per-page basis, and performs erasing on a per-block basis, and a control unit that manages a data process in the non-volatile memory by performing logical-physical translation on a per-translation unit (TU) basis, and performs a fold process. The control unit sets data of a physical TU corresponding to unnecessary logical TU information to be excluded from a copy target in the fold process based on the unnecessary logical TU information, the unnecessary logical TU information being notified of by a file system and representing a logical TU corresponding to a physical TU in which unnecessary data is physically written.

Abstract translation: 提供了一种存储器管理装置，包括：以每页为单位执行数据的写入和读取的非易失性存储器，并且以每个块为基础执行擦除;以及控制单元，其管理非易失性存储器中的数据处理， 通过在每个翻译单元（TU）的基础上执行逻辑 - 物理转换，并进行折叠处理。 控制单元基于不需要的逻辑TU信息，在折叠处理中，将与不需要排除的不必要的逻辑TU信息对应的物理TU数据设定为由文件系统通知的不必要的逻辑TU信息，并表示逻辑 TU对应于物理TU，其中不需要的数据被物理地写入。