Method and apparatus for managing bit rate
US9014269B2 · kind B2 · utility
0Cited by
8References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 30, 2010 |
| Grant date | Apr 21, 2015 |
| Priority date | — |
| Expiry date | Jul 14, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4347
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A crawl motion vector is determined based on a speed and direction of the crawling text to be displayed in a text crawl area. A determination whether to re-encode macroblocks in the plurality of pictures is made. The macroblocks in the plurality of pictures that are to be re-encoded are either macroblocks having motion vectors pointing to the text crawl area or macroblocks within the text crawl area. A lowest bit rate coding option for each macroblock to be re-encoded is determined, and each macroblock is re-encoded using the lowest bit rate coding option for the macroblock.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.