System for receiving broadcast digital data comprising a master digital terminal, and at least one slave digital terminal
US8060902B2 · kind B2 · utility
1Cited by
6References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2004 |
| Grant date | Nov 15, 2011 |
| Priority date | — |
| Expiry date | Feb 28, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4623
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The system for receiving broadcast digital data (in particular pay television services) comprises a master digital terminal (1), and at least one slave digital terminal (2) connected to the master terminal by a link (3) and able to receive protected digital data. The slave digital terminal can access the protected data only if information necessary for accessing the data and received by the master digital terminal is sent by way of link (3) to the slave digital terminal within a predetermined deadline. This information is in particular access entitlements to television services or keys for descrambling the service.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.