Video processing system for scrambling layered video streams and methods for use therewith
US8144781B2 · kind B2 · utility
0Cited by
4References
20Claims
0Family size
Assignee
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Key dates
| Filing date | Jan 4, 2008 |
| Grant date | Mar 27, 2012 |
| Priority date | — |
| Expiry date | Dec 23, 2030 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/23476
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video processing system includes a video encoder that encodes a video stream into an independent video layer stream and a first dependent video layer stream that requires the independent video layer for decoding. A scrambling module scrambles the independent video layer stream to produce a scrambled independent video layer stream and leaves the first dependent video layer stream unscrambled.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.