In-band signaling to control encryption and transcoding resources in VOD/On-Demand system
US7765566B2 · kind B2 · utility
0Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 2004 |
| Grant date | Jul 27, 2010 |
| Priority date | — |
| Expiry date | Apr 14, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/835
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for controlling flow of a video content signal through a communications system, such as a video on-demand system creates a unique message for each individual video content signal and attaches the unique message to each individual video content signal prior to transmitting the video content signal through the communications system to a designed end user system. In one exemplary embodiment, the unique message comprises an in-band signaling message, such as a message inserted in a program map table in an MPEG packetized signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.