Computer tool for managing digital documents

A computer and document technology, used in computer security devices, computing, digital data protection, etc., can solve problems such as difficulty in comparison

Active Publication Date: 2009-10-28
INRIA NATIONAL INSTITUTE FOR RESEARCH IN COMPUTER SCIENCE AND CONTROL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So the details of the comparison differ depending on e.g. whether it is a "text" type file or a binary file, which is a file of a more advanced nature, such as an image file, which is more difficult to compare

Method used

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  • Computer tool for managing digital documents
  • Computer tool for managing digital documents
  • Computer tool for managing digital documents

Examples

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Embodiment Construction

[0024] As can already be seen, the expression "computer document" is used here rather broadly. A computer document may be essentially any type of file, although text-only, text-dominant, or text-heavy files are specifically contemplated in certain embodiments of the invention.

[0025] Specifically, a document typically takes the form of a single physical computer file. The expression "computer document" however also covers the case where several documents are contained in the same physical file, or conversely where a given document is constituted by several physical computer files. The term "logical document" is often used to disentangle the relationship between a document and a physical file or file containing that document or a portion thereof.

[0026] Can "play" the contents of a document: for example, you can display text or a World Wide Web page, you can listen to music, you can watch a video, or you can run a program. In this case, the documentation is in principle n...

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PUM

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Abstract

The device has an extractor to decompose document content into elements. A signature generator returns signatures of the content. A print generation module is arranged to operate a print generation function on the content to provide prints with signatures, where the function associates a temporality reference and signatures. A time stamp module is repeatedly called with a list of temporality references of prints containing same signature value to provide unified temporality reference for each signature value, where correspondence between each value and the unified reference is stored.

Description

technical field [0001] The present invention relates to computer document processing. Background technique [0002] A computer document is basically any type of file whose contents a person can access directly or indirectly. If the file is of type text, accessibility can be fairly straightforward. If the file is a music or video file, accessibility is less straightforward. Other examples will be considered later. [0003] File systems have long been organized to allow precise and theoretically exact dating of each file. Similarly, different attributes are known to be associated with computer files in different ways. Basically, these attributes are linked to the computer nature of the file itself, such as attributes "read-only", "archive", "system" or "hidden". In addition to the attributes associated with the file system, other attributes may also be associated with the file, eg in the file header. The computer system also enables comparison of documents. A "minimal" ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/24G06F21/10G06F21/64
CPCG06F21/64G06F8/71G06F2221/2151G06F21/105
Inventor G·卢素M·比埃斯
Owner INRIA NATIONAL INSTITUTE FOR RESEARCH IN COMPUTER SCIENCE AND CONTROL
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