Method for the transmission of management data
US8036387B2 · kind B2 · utility
121Cited by
6References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2007 |
| Grant date | Oct 11, 2011 |
| Priority date | — |
| Expiry date | Jun 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/63345
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
This invention relates to a method for the transmission of management data to at least one multimedia unit or a group of multimedia units. This method is characterized in that said management data is sent in the form of at least one authorization message encrypted by means of at least one synchronization key (SK), the sending of said at least one authorization message being repeated cyclically and intended for said multimedia unit or said group of multimedia units, and in that the synchronization key is modified at least during each cycle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.