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Nonvolatile storage device, information recording system, and information recording method

A non-volatile storage and non-volatile technology, which is applied in memory systems, digital data information retrieval, and protection of stored content to prevent loss, etc. It can solve the problem of different data formats and contents, and the degradation of characteristics of storage units for centralized access to management information, etc. question

Inactive Publication Date: 2013-07-03
SONY GRP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0037] However, the technique disclosed in Patent Document 1 is not a sufficient countermeasure against centralized access to management information and deterioration of memory cell characteristics
In addition, there is a problem that in the case of switching depending on whether countermeasures against power-off are implemented, as a result, the format and content of data stored in the memory are different

Method used

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  • Nonvolatile storage device, information recording system, and information recording method
  • Nonvolatile storage device, information recording system, and information recording method
  • Nonvolatile storage device, information recording system, and information recording method

Examples

Experimental program
Comparison scheme
Effect test

no. 5 example

[0101] 5. Fifth embodiment (including an example of switching between NVM control algorithms)

no. 6 example

[0102] 6. Sixth Embodiment (Example Regarding a Structure In which a Host and a Media Are Integrally Formed)

no. 1 example

[0104] An information recording device (hereinafter referred to as "host") serving as a host device that reads data from and writes data to a medium and a storage system including the medium will be described below. The medium is an electrically rewritable nonvolatile memory device including a semiconductor memory element. Various types of information recording devices, such as the above-mentioned digital camera, the above-mentioned mobile phone terminal, and the above-mentioned personal computer, are applied to the host.

[0105] According to the embodiment of the present invention, it can be determined through the medium accessed by the host whether the data in the medium is user data or management information. The medium includes a member configured to switch between two types of storage elements, namely, a large-capacity storage element for user data and a small-capacity storage element for management information, and store data. In addition, the nonvolatile memory elemen...

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Abstract

A nonvolatile storage device includes a nonvolatile memory configured to store user data and management information used to manage the user data on a file system, and a medium controller configured to determine whether a command input from a host device is used for the user data or the management information, the command describing content of processing performed for the user data or the management information, and switch between control methods used for the nonvolatile memory on the basis of the determination result.

Description

[0001] Cross References to Related Applications [0002] This application contains subject matter related to Japanese Priority Patent Application JP2008-330883 filed in the Japan Patent Office on December 25, 2008, the entire contents of which are hereby incorporated by reference. technical field [0003] The present invention relates to a nonvolatile storage device including a nonvolatile storage element and capable of storing data in a secure state, and to an information recording system and an information recording method including the nonvolatile storage device. Background technique [0004] Recently, with the increase in storage capacity of electrically rewritable nonvolatile storage devices (hereinafter referred to as "medium") that include semiconductor storage elements, the As a medium for file data in the storage medium, auxiliary storage devices such as memory cards have been manufactured. In particular, since NAND-type flash memory (NAND-type flash memory) having...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/02G06F3/06G06F17/30G06F11/10
CPCG06F3/0643G06F17/30G06F2212/7206G06F12/0866G06F2212/222G06F11/10G06F3/0619G06F12/0246G06F12/00G06F3/0679G06F12/02G06F3/068G06F12/16G06F2212/7202G06F13/10G06F11/08
Inventor 中西健一筒井敬一越山润一
Owner SONY GRP CORP
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