Memory apparatus and memory management method

A storage device, memory technology, applied in information storage, static memory, read-only memory, etc., can solve problems such as a lot of time and energy

Active Publication Date: 2014-11-05
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if there are a large number of volumes, there is a problem that this task requires a lot of time and effort

Method used

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  • Memory apparatus and memory management method
  • Memory apparatus and memory management method
  • Memory apparatus and memory management method

Examples

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Embodiment Construction

[0026] The embodiments of the present invention to be described below are specific examples of what the present invention is intended to do, and technically give desired various limitations. However, in the following description, unless a description is given to limit the present invention, the present invention is not limited to these embodiments.

[0027] It will be explained in the following order.

[0028]

[0029]

[0030]

[0031]

[0032]

[0033] In one embodiment, as an example of a non-volatile semiconductor memory, a NAND flash memory is used. As nonvolatile semiconductor memories other than NAND flash memory, NOR flash memory, EEPROM (Electrically Erasable Programmable ROM), magnetoresistive RAM (random access memory), resistive random access memory, phase change memory, etc. are also applicable in the present invention. Further, non-volatile memories other than semiconductor memories, such as ferroelectric memories, etc., are also applicable to the pre...

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Abstract

A memory apparatus includes a detection unit, a storage unit, an update unit, and a determination unit. The detection unit is configured to detect a deterioration factor of a nonvolatile memory. The storage unit is configured to hold a lifetime estimation value. The update unit is configured to update the lifetime estimation value on the basis of the deterioration factor detected by the detection unit. The determination unit is configured to use the lifetime estimation value updated by the update unit to generate a notification signal.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS [0002] This application claims the benefit of Japanese Priority Patent Application JP 2013-094963 filed on April 30, 2013, the entire contents of which are incorporated herein by reference. technical field [0003] The present invention relates to a storage device and a storage management method applied to a nonvolatile memory, such as a nonvolatile semiconductor memory. Background technique [0004] In recent years, the price of nonvolatile semiconductor memories has been decreasing, and the nonvolatile semiconductor memories have been used for one purpose after another. As one of the purposes, it is envisaged that a non-volatile semiconductor memory is contained in a plastic medium and used as a replacement for the tape medium of the past. [0005] As one of the nonvolatile memories, a magnetic storage device (hard disk, magnetic tape, etc.) is known. For example, in broadcast stations, data centers, and the like, tape med...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C29/56
CPCG06F12/02G11C16/349G11C29/50004G11C2029/0409
Inventor 小林诚司久保毅安井道明高沢丈晴后藤尚史
Owner SONY CORP
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