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Storage system comprising means managing a storage unit with anti-wear and anti-wear management of a storage unit

A memory management and storage system technology, applied in the field of storage carriers, can solve problems such as prolonging the life of the memory

Inactive Publication Date: 2002-02-27
GEMPLU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, none of the solutions so far have been satisfactory enough
In other words, there is no single solution that significantly extends the lifetime of this type of memory

Method used

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  • Storage system comprising means managing a storage unit with anti-wear and anti-wear management of a storage unit
  • Storage system comprising means managing a storage unit with anti-wear and anti-wear management of a storage unit
  • Storage system comprising means managing a storage unit with anti-wear and anti-wear management of a storage unit

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Embodiment Construction

[0038] The invention will now be described in connection with a specific application, which is a non-volatile memory (or backup memory) containing data to be updated and located in the chip card 1 .

[0039] The diagrams of Figures 1 and 2 illustrate two possible configurations for the chip card. In FIG. 1, the chip card 1 only comprises a memory MA for storing data (and / or translatable programs), some of which may be updated. In the case of a card reader, the management means 2 of the memory M are separate. exist figure 2 In this case, the chip card includes both the memory control device 2 and the memory MA itself.

[0040] These two cases represent the usual situation. In the commercial world there are chip cards which contain only memory, and chip cards which contain a microprocessor with its own program memory and memory for the provided application. The invention is then applicable to any storage system comprising a management device, whether the management device of...

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PUM

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Abstract

The invention relates to a storage system including at least one non-volatile memory containing information likely to be updated, and more particularly, to storage supports such as chip cards. The invention likewise relates to a process of management of the memory. According to the invention, the system includes a memory manager that is able to displace all or a portion of the contents of the memory respectively over all or a portion of the memory, in order to limit the attrition of memory cells due to the frequent updating of certain data.

Description

[0001] This disclosure is based on, and claims priority from, Patent Application No. 9816216, filed November 22, 1998, the contents of which are incorporated herein by reference. field of invention [0002] The invention relates to a memory system comprising at least one memory and means for managing the memory against wear, wherein the wear resistance is intended to increase the lifetime of the memory. [0003] The invention applies to any non-volatile storage, content backup and storage in which some data may be updated frequently. The invention applies in particular to storage carriers such as chip cards, so-called smart cards. Background of the invention [0004] Manufacturers of EPROM, EEPROM and FeRAM types of memory know that no matter what technology the non-volatile memory uses, there is a maximum number of read and write operations for the cells that make up a memory. Indeed, the memory can be considered worn out when the number of write and / read operations reache...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F12/14G06F12/00G06F12/02G06F12/16G06F21/10G06F21/60G06F21/79G11C16/02G11C16/34G11C29/04
CPCG06F12/0246G11C16/349G06F2212/7211G06F2212/1036G11C16/3495
Inventor P·吉特尔曼
Owner GEMPLU