Accessing annotations across multiple target media streams
US6484156B1 · kind B1 · utility
286Cited by
18References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 15, 1999 |
| Grant date | Nov 19, 2002 |
| Priority date | — |
| Expiry date | Sep 15, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99931
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An annotation server uses a hierarchical annotation storage structure to maintain a correspondence between a plurality of multimedia stream annotations and a hierarchically higher group identifier. The annotations corresponding to the different multimedia streams can easily be accessed concurrently by referencing the group identifier.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.