Method and apparatus for using multiple compressed digital video and audio signals
US6754439B1 · kind B1 · utility
83Cited by
12References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1999 |
| Grant date | Jun 22, 2004 |
| Priority date | — |
| Expiry date | Apr 6, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/4347
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The invention relates to a method and apparatus for flexibly and reliably processing one or more MPEG signals from at least one source. The method provides for synchronizing decoded streams to a reference clock, for playing multiple streams simultaneously or for transitioning between streams in a seamless manner. The output streams can have varying formats and can include both video and audio. The structure and method further provide for the capability of skipping B frames to reach a desired reference frame quickly and to edit the MPEG streams regardless of GOP size.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.