Smartcard dynamic management
US7684567B2 · kind B2 · utility
5Cited by
2References
20Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Feb 18, 2005 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | May 27, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4367
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for securing a portable security module for use with a decoding element, the portable security module and the decoding element allowing to descramble scrambled audiovisual information. The method comprises analyzing at the portable security module a sequence of command messages, the command messages of the sequence being received at the portable security module at distinct times.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.