Method and apparatus for modifying a data rate of a video signal
US7801213B2 · kind B2 · utility
1Cited by
15References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2007 |
| Grant date | Sep 21, 2010 |
| Priority date | — |
| Expiry date | Jul 25, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/440254
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Methods, apparatus, and systems for modifying the data rate of a video signal are provided. A compressed video signal is received. A closed-loop transrating path for modifying a data rate of the video signal and an open-loop transrating path for modifying the data rate of the video signal are provided. One of the open-loop transrating path or the closed-loop transrating path is selected for modifying the data rate of at least a portion of the video signal. Pixel quantization error control may be provided in the closed loop transrating path.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.