Method for verifying television receiver sets with access control and corresponding receiver set
US7600238B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 25, 2002 |
| Grant date | Oct 6, 2009 |
| Priority date | — |
| Expiry date | Sep 20, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6543
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention concerns a method for verifying television receiver sets with access control and a corresponding receiver set. The invention is characterized in that a broadcaster performs parametered calculations, for example through the subscriptions and the characteristics of the receiver sets. The results of said calculations are transmitted to the receiver set which store them. In order to verify a receiver, the broadcaster transmits thereto the parameter(s) used, the receiver performs the calculation and compares the result it obtains with that which it has stored. In case of non-conformity, the receiver set modifies its operating conditions. The invention is applicable to television with access control.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.