Methods of broadcastng and receiving scrambled multimedia programs, a terminal and a network head end for said methods
US7995577B2 · kind B2 · utility
1Cited by
2References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2007 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Oct 8, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6405
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method for broadcasting a plurality of multimedia programmes generated by operators of different services, whereby one or more network headends broadcast (in 102) on a reference multicast address a list associating identifiers of service operators with at least one first level service multicast address, the reference multicast address being previously known to all the terminals capable of receiving and multiplexing broadcast multiplexed contents and said reference multicast address being different from all the broadcasting multicast addresses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.