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Data management apparatus and data management method

A data management device and data technology, applied in the field of data management, can solve problems such as operability and response to other processing problems, heavy loads, etc., and achieve the effect of suppressing low operability

Inactive Publication Date: 2006-07-19
KK TOSHIBA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the processing of rewriting data in the real data area using special data falls into a heavy load, and if such rewriting processing is performed simultaneously with some other processing, there may be problems in operability and response to other processing

Method used

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  • Data management apparatus and data management method
  • Data management apparatus and data management method
  • Data management apparatus and data management method

Examples

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Embodiment Construction

[0012] Throughout the description, the illustrated embodiments and examples should be considered as exemplifications and not as limitations on the apparatus and methods of the present invention.

[0013] Now, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. figure 1 is a schematic cross-sectional view of an embodiment of an image processing apparatus provided with an embodiment of a data management apparatus according to the present invention. figure 2 is showing figure 1 A functional block diagram of an embodiment of the data management device and an embodiment of the image processing device provided with the embodiment of the data management device.

[0014] The image processing apparatus M of this embodiment includes: an image reading section R for reading a document to obtain an image thereof; an image forming section P for forming an image of the document on paper; a memory 8; a CPU 9; a storage...

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Abstract

There is disclosed a technique that can reliably erase data to achieve an enhanced level of security, while suppressing the problem of low operability and that of poor response of some other process due to an increased load. A data management apparatus for managing the data of a file system comprises a path information altering section for altering the contents of the path information indicating the location of the file to be erased according to a file erasing request for erasing the file so as to indicate a predetermined location, a task monitoring section for monitoring the state of the task being executed by the CPU adapted to execute processes relating to the file system and an erasing task executing section for executing an erasing task of erasing the real data of the file for which the contents of the path information are set to indicate the predetermined location according to the state being monitored by the task monitoring section at a time when no predetermined task other than the erasing task is being executed.

Description

technical field [0001] The present invention relates to data management in file systems. In particular, the invention relates to erasure of real data of files. Background technique [0002] The FAT file system is known as a typical system for managing files on a hard disk. The FAT file system generally includes three types of data, including FAT (file allocation table, file allocation table), directory entries, and files as real data. When deleting a file from an ordinary FAT file system, the FAT and directory entries that provide information about the location of the real data on the hard disk are deleted, but the real data will remain on the hard disk, so from a security point of view, a A technology that completely erases the real data left on the hard drive. [0003] In fact, this technique is to erase the real data formed on the hard disk by rewriting the data left in the real data area of ​​the hard disk with special data (especially Patent Document 1: Japanese Pate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N1/21G06F17/30G06F21/60
CPCG06F21/6218G06F2221/2143G06F21/608
Inventor 古贺胜高桥俊晴
Owner KK TOSHIBA
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