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Method and controller for preventing nonvolatile memory from occurring read interference

A volatile storage, non-volatile technology, applied in the field of storage medium reading technology

Active Publication Date: 2011-08-17
PHISON ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because of the existence of such a phenomenon, all manufacturers must develop technologies to prevent read disturbances, so as to effectively suppress the probability of read disturbances.

Method used

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  • Method and controller for preventing nonvolatile memory from occurring read interference
  • Method and controller for preventing nonvolatile memory from occurring read interference
  • Method and controller for preventing nonvolatile memory from occurring read interference

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Experimental program
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Embodiment Construction

[0051] The technical function to be achieved by the present invention is to effectively suppress the probability of read disturbance, so as to correctly read all the data stored in the non-volatile memory. The following content will give a detailed description of the technical features and the desired technical effects of the present application, so as to provide reference for those skilled in the relevant fields of the present invention.

[0052] figure 1 A system block diagram of the non-volatile memory storage device 100 is shown. Please refer to figure 1 , the nonvolatile memory storage device 100 generally includes a controller 101 and a nonvolatile memory 103 . Wherein, the controller 101 is used to control the overall operation of the non-volatile memory storage device 100 , such as storing, reading and erasing data. In this embodiment, the controller 101 includes a memory management module 101a, a non-volatile memory interface 101b, a buffer memory 101c and a micro-...

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Abstract

The invention provides a method for preventing a nonvolatile memory from occurring reading interference, which is suitable for a storage device of a nonvolatile memory, wherein, the nonvolatile memory is provided with a plurality of blocks; and each block is provided with a plurality of paging. The method for preventing the nonvolatile memory from occurring reading interference provided by the invention comprises the following steps of:, storing programming codes which are executed by a controller of the storage device of the nonvolatile memory and used for controlling the storage device of the nonvolatile memory to at least one first block in the blocks; and copying the programming codes stored in the first block to at least one second block in the blocks when the storage device of the nonvolatile memory is supplied with electricity. Therefore, the copied blocks with programming codes replace the former blocks with the programming codes; the former blocks with the programming codes are prevented from occurring reading interference; and the phenomena such as error, abnormality or loss of the programming codes are largely reduced.

Description

[0001] This application is submitted on January 22, 2008 with the application number 200810005154.4, and the title of the invention is "Method for Preventing Non-Volatile Memory from Reading Interference and Its Controller" Invention Patent Application [0002] divisional application technical field [0003] The present invention relates to a storage medium reading technology, and in particular to a method and controller for preventing non-volatile memory from reading interference. Background technique [0004] In recent years, due to the rapid growth of digital cameras, mobile phones with camera functions, MP3, and MP4, consumers' demand for storage media has also increased sharply. Looking at all the storage media today, due to the characteristics of non-volatile data, power saving, small size, and no mechanical structure, flash memory (Flash Memory) is the most suitable for built-in the above-mentioned multiple programmable in portable multimedia devices. Moreover, sinc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11C16/10
Inventor 陈振业
Owner PHISON ELECTRONICS