DV metadata extraction
US8165449B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 1, 2003 |
| Grant date | Apr 24, 2012 |
| Priority date | — |
| Expiry date | Oct 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2220/91
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A set of interfaces, data structures and events represent a DV metadata extraction tool. The DV metadata extraction tool includes an API (application programming interface) for describing DV metadata packs that are to be extracted from a DV data stream. The extraction API supports methods for specifying and removing DV metadata packs to be extracted from DV frames. The DV metadata extraction tool also includes an API for describing a container that holds DV metadata once it has been extracted from a DV frame. The container API supports methods for adding and removing DV structures to the container and for retrieving data from the container, removing data from the container, and iterating through the container. The DV metadata extraction tool also includes a collection of higher-level structures that represent unpacked DV metadata packs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.