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Code mode-based document data recovering system and quick recovering method thereof

A coding method and recovery system technology, which is applied in the field of computer processing, can solve the problems of unrecoverable document file fragments, etc., and achieve the effects of improving recovery success rate, fast search speed, and high document recognition rate

Active Publication Date: 2011-05-25
XIAMEN MEIYA PICO INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing document recovery technology uses features such as file signatures and end-of-file characters to restore documents. This technology cannot recover document file fragments that have lost features such as file signatures and end-of-file characters.

Method used

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  • Code mode-based document data recovering system and quick recovering method thereof
  • Code mode-based document data recovering system and quick recovering method thereof
  • Code mode-based document data recovering system and quick recovering method thereof

Examples

Experimental program
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Embodiment Construction

[0038] Examples, see figure 1 Shown, a kind of file data restoration system based on coding mode of the present invention comprises:

[0039] An input unit 1, which is used to read the document data of the storage medium and input the preset document coding rules and document coding combination rules; the input unit 1 is the import of the storage medium, and the input of various document coding rules and coding combination rules The input device used in is used to read the content of the storage medium and send it to the content extraction unit and store various document coding rules and coding combination rules in the corresponding storage unit;

[0040] A coding rule storage unit 2, connected to the output of the input unit 1, which is used to store the data of various document coding rules that are input by the input unit 1 and are preset;

[0041] A code combination rule storage unit 3, connected to the output of the input unit 1, which is used to store the data of variou...

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PUM

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Abstract

The invention discloses a code mode-based document data recovering system and a quick recovering method thereof. The system comprises an input unit, a code rule storage unit, a code combination rule storage unit, a data retrieval unit, an effective code judging unit, an effective code extracting unit, an effective code storage unit, a code recombination unit and an output unit. The code mode-based document data recovering system is characterized by the effective codes of the document data, recovers various documents by extracting the codes which are effective codes in a storage medium and can recover document data files which are characterized by losing file signature, file final character and the like and recover various kinds of written information which is not covered by other files. The document recovering system and the quick recovering method thereof have the characteristics of high document identification rate and high searching speed, and can find fragments of damaged documents, extract the fragments of the damaged documents from the storage medium and greatly improve the current document recovery success rate.

Description

technical field [0001] The invention relates to a computer processing for file data recovery, in particular to a file data recovery system based on encoding mode and a fast recovery method thereof. Background technique [0002] Document recovery refers to the loss of data at the storage system, or operating system, or file system level. This loss is multifaceted, such as system software and hardware failures, crashes, virus damage, hacker attacks, Trojan horse damage, misoperation, array Data loss and so on; for the general file system, the research work in this area started earlier, and the research at home and abroad is relatively deep. The main difficulties in this area are: recovery processing of file fragments, document repair and password recovery. [0003] The early document recovery technology only searches the file allocation table to find out the documents marked as deleted for recovery, and cannot recover those documents that have been overwritten in the file all...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
Inventor 黄志炜张雪峰
Owner XIAMEN MEIYA PICO INFORMATION
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