Method and system for providing a predeactivation warning in a system having a conditional access authorization expiration in a mobile receiving device
US8243923B2 · kind B2 · utility
1Cited by
4References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 13, 2006 |
| Grant date | Aug 14, 2012 |
| Priority date | — |
| Expiry date | Jun 12, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/6334
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method for providing conditional access authorizations in a satellite-receiving system includes generating a conditional access authorization signal and an expiration signal at a head-end 20, receiving the conditional access authorization signal at a fixed satellite receiver 54 or at a mobile satellite receiver 28. When the mobile satellite receiver operates in a predetermined time window before the expiration time, which is determined from the expiration signal, a warning 434 on a screen display 432 is generated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.