Embedded blacklisting for digital broadcast system security
US7039955B2 · kind B2 · utility
1Cited by
114References
35Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 2001 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Nov 3, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4623
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An apparatus and method for transmission security is presented. A receiver communicatively coupleable to an identifiable conditional access module (CAM) to enable reception of the service uses an authenticator to control the operability of the receiver according to a comparison between the identified conditional access module and a list of conditional access modules.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.