Controlled metadata revelation
US8656435B2 · kind B2 · utility
4Cited by
0References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 7, 2007 |
| Grant date | Feb 18, 2014 |
| Priority date | — |
| Expiry date | Aug 17, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/84
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method of controlling revelation of one or more metadata items is disclosed. Each of the one or more metadata items is associated with one or more parts of an audio-visual data stream (101). The method comprises: for a given one or more parts (103,105) of the audio-visual data stream (101), revealing one or more metadata items (113,115,117) associated with the given one or more parts (103,105) of the audio-visual data stream (101) only after the given one or more parts (103,105) of the audio-visual data stream (101) have been accessed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.