Efficiently distributing video using a hybrid network that uses existing infrastructure
US7602846B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2004 |
| Grant date | Oct 13, 2009 |
| Priority date | — |
| Expiry date | Feb 10, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/64784
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for transporting a video program in compressed form from a source location to a second location. The method comprises receiving at an intermediate location a first compressed version of the video program using a first compression method, transported from the source location to an intermediate location over a first segment that includes a link of a first type. The method further comprises transcoding the first compressed version to a second compressed version compressed using a second compression method that is in relatively widespread use. The method further comprises sending the second compressed version to the second location over a link of a second type. The link of the second type includes infrastructure to transport video program streams compressed by the second compression method. The first compression method can achieve a higher compression ratio that the second compression method for approximately the same image quality.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.