Identifying ancillary information associated with an audio/video program
US7559073B2 · kind B2 · utility
10Cited by
3References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 2004 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Aug 1, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8586
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system communicates video information including television content associated with a plurality of channels and ancillary information. Information may be transmitted with the ancillary information that is indicative of the type of content included in the ancillary information. This provides the user, in one embodiment of the present invention, with a visual indication of the type of information that accompanies television content. This helps the user to decide whether the user wishes to view the ancillary information and provides the opportunity to select that enhancement for viewing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.