Method for management of access means to conditional access data
US7995755B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 2005 |
| Grant date | Aug 9, 2011 |
| Priority date | — |
| Expiry date | Aug 28, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/8355
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for management of access means to conditional access data may include: initiating, from a security module of a multimedia unit, a verification of the next renewal date of the access means, which are associated to time information and are controlled by a management centre; determining, in the security module, the next renewal date of the access means; if the next renewal date of the access means is closer than a preset duration, then sending a request from the security module to the multimedia unit that requests the renewal of the access means; sending the request for renewal of the access means from the multimedia unit to the management centre; verifying by the management centre, if the multimedia unit is authorized to renew the access means; and in the case of a positive response, sending of an access means renewal message to the multimedia unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.