Method for compressing/decompressing structure documents
US8015218B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2001 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Nov 29, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/25
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method for compressing and decompressing a structured document, associated with at least a tree diagram structure defining a document structure and comprising nested structure elements, associated with a type of information, and representing sets of data, the method comprising steps which consists in: performing a syntactic analysis of the structure diagram and standardizing it so as to obtain a single predefined sequence of the elements of the diagram; compiling the standardized diagram to obtain finite automata, each automaton comprising states interconnected by transitions respectively representing the elements of the structure; and compressing the document, and executing at least a compression algorithm associated with a type of information, when a set of data having the type of information is encountered in the document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.