Process for managing the handling of conditional access data by at least two decoders
US7502473B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 21, 2004 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Apr 2, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4623
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
One embodiment of the invention relates to a management method for conditional access data processing by at least three decoders associated to a subscriber. These decoders include activation/deactivation means for conditional access data processing and local communication means structured to allow communication between the subscribers' decoders. This method comprises a reception step, a determination step, and a comparison step. In addition conditional access data processing by said first decoder (STB) is deactivated if the latter has not received messages from the required number of different decoders. Another embodiment of the invention relates to a decoder that allows the implementation of the method according to the invention and characterized in that it includes local communication means (10) structured to transmit messages to other decoders and to receive messages originating from said other decoders, and processing means for messages received by said local communication means (10).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.