Method for compressing and decompressing structured documents
US7571152B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 5, 2006 |
| Grant date | Aug 4, 2009 |
| Priority date | — |
| Expiry date | Sep 25, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99931
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for encoding a group of several structured fragments includes analyzing structure schemas of the fragments in order to obtain sequences of executable instructions for each component of the schemas. The instruction sequences are executed on the structured fragments so as to obtain an encoded binary stream containing the control codes and the information elements values of the fragments. The values of the information elements of the fragments in data blocks are distributed as a function of the respective types of the elements. The respective positions in the structure block are stored in a pointer table for each fragment and in the data blocks of the control codes and the information element values of the fragment. Compression algorithms are applied to the blocks adapted to the contents thereof, and the contents of the pointer table and data blocks are concatenated into an encoded binary container.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.