High-bandwidth digital content protection during rapid channel changing
US7398547B2 · kind B2 · utility
13Cited by
0References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 19, 2004 |
| Grant date | Jul 8, 2008 |
| Priority date | — |
| Expiry date | Jul 14, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4882
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus are disclosed for providing High-Bandwidth Digital Content Protection during a channel change process. The method and apparatus include detection of High-Bandwidth Digital Content Protection capability on a receiver during an interface event. High-Bandwidth Digital Content Protection authentication is delayed for a predetermined time period to allow the channel change process to stabilize. The invention reduces a performance penalty associated with the channel change process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.