Patent · US Expired

Method for improving the functionality of the binary representation of MPEG-7 and other XML based content descriptions

US7797346B2 · kind B2 · utility

2Cited by

1References

7Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Jörg Heuer · Munich, DE
Andreas Hutter · Munich, DE
Ulrich Niedermeier · Leiblfing, DE

Key dates

Filing date	Jan 31, 2002
Grant date	Sep 14, 2010
Priority date	—
Expiry date	May 12, 2023

Classification

Technology area (CPC H)Electricity
CPC primaryH04N21/435
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

A method is provided for encoding string-based data types, which have, for example, a tree-type structure, in such a way that signal bits (flags) for optional sections and/or for length information concerning the codes that are of variable length are placed in a defined sequence at the beginning of the created bitstream, thus accelerating the search for data via a sorting process and bit mask queries. A more efficient encoding is also provided of the #position field by, among other things, the assignment of code fragments for each group of regular expressions.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.