Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for constructing and updating data object feature database

A technology of data objects and feature data, applied in the field of information processing, can solve the problems of increasing types of file formats, recovery rate of less than 1%, leakage of private information of old mobile phones, etc.

Active Publication Date: 2022-05-24
BEIJING UNIV OF TECH
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to statistics, as of October 2015, my country's mobile phone users have reached 1.302 billion, and there are about 200 million discarded mobile phones produced every year, but the recycling rate is still less than 1% [1]. One of the reasons is that trading users are worried about waste mobile phones. The private information in the
At the same time, the differences in the use of electronic equipment by different users also cause large differences in the size and type of data stored in different waste electronic equipment, and different software companies in the market are constantly designing new file formats , so that the variety of file formats continues to increase

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for constructing and updating data object feature database
  • Method for constructing and updating data object feature database
  • Method for constructing and updating data object feature database

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] Waste electronic equipment stores a large amount of user data, and the type, storage address, and size of these user data vary widely. In addition, the following problems in the user data to be cleared affect the information clearing process:

[0022] 1) The data package to be cleared by the user contains a variety of files, data, etc., including applications, video files, text files, etc., and these files will be extracted in the form of indiscriminate data to form a unified data package. It is unreasonable to carry out uniform feature recognition;

[0023] 2) The attributes of the data to be cleared may be tampered with, which is inconsistent with the actual situation;

[0024] 3) The data to be cleared may be compressed and encrypted;

[0025] 4) Part of the data to be cleared cannot be matched to similar cases, which affects the entire information clearing process.

[0026] Consider the following solutions based on the above issues:

[0027] 1) Before performing ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for constructing and updating a data object characteristic database, through a data object characteristic data case construction module, a data scanning and data object identification module to be cleared, a characteristic data comparison and matching module, an unknown case extraction module, and an unknown case The update module is implemented to obtain a safe and efficient information clearing solution; at the same time, the data object feature database needs to be updated to adapt to numerous and constantly updated data object types.

Description

technical field [0001] The invention belongs to information processing of electronic equipment, in particular to a method for constructing and updating a data object feature database. Background technique [0002] The upgrading speed of electronic products such as mobile terminal equipment and computers is gradually accelerating. According to statistics, as of October 2015, my country's mobile phone users have reached 1.302 billion, and there are about 200 million discarded mobile phones produced every year, but the recycling rate is still less than 1% [1]. One of the reasons is that trading users are worried about waste mobile phones. The private information inside is leaked. Usually, the information deletion or formatting functions of these electronic devices cannot really clear the data information stored on these firmware systems, and some or all of the data can be recovered by non-professional customization of special software[2], This poses a serious threat to persona...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/21G06F16/23
CPCG06F16/219G06F16/23
Inventor 汤健王丹丹周晓钟禹明生李霞段雨洪韩红桂
Owner BEIJING UNIV OF TECH