Virtual smart card device, method and system
US7379548B2 · kind B2 · utility
11Cited by
11References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 2003 |
| Grant date | May 27, 2008 |
| Priority date | — |
| Expiry date | Feb 24, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/63345
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and a method for secure transmission of protected content to a subscriber, without requiring a smart card or other renewable security element to be in physical proximity of the recipient module of the subscriber, such as a set-top box for example. Therefore, the renewable security element may optionally be protected and controlled by the transmitter of the protected content, such as by the broadcaster for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.