Methods and apparatuses for secondary conditional access server
US8667304B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2012 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Sep 12, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2005/91364
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Conditional access to media content of primary security systems on a secondary networked environment. In one embodiment, a conditional access server is used to provide services to secondary CA clients (e.g., a bridge, a renderer, a storage, or their different combinations) through network connections. Containing data representing the subscriber, a conditional access server recovers entitlement data and/or decryption keys of a primary security system for the conditional access protected content, such as service keys and control words, and/or enforces conditional access to the content by secondary CA clients according to the authorization of the primary security system for the secondary CA clients. In one embodiment, a conditional access system provides delayed authorization for use so that the content can be recorded for later use when authorized and broadcasts rights for use on multiple secondary CA clients.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.