Synchronizing multiple playback device timing utilizing DRM encoding
US7805373B1 · kind B1 · utility
23Cited by
23References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 31, 2007 |
| Grant date | Sep 28, 2010 |
| Priority date | — |
| Expiry date | Aug 16, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8456
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method are provided for synchronizing playback of media content on multiple playback devices utilizing Digital Rights Management (DRM) encoding. In general, multiple playback devices or users of those playback devices are associated to form a virtual group. A virtual group (VG) control function operates to synchronize advertisement (ad) slots within media content provided to the playback devices in the virtual group utilizing DRM encoding.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.