MPEG stream switching process
US6393057B1 · kind B1 · utility
54Cited by
6References
10Claims
0Family size
Inventors
Key dates
| Filing date | Aug 13, 1999 |
| Grant date | May 21, 2002 |
| Priority date | — |
| Expiry date | Aug 13, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/23424
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The process is characterized in that the second data stream is modified before transmission, by replacing coding information for the first inter pictures of bidirectional type following the intra picture of the first GOP of the second sequence after the switching point, when considering the order of coding of the pictures, with predefined picture coding information whose coding cost is less than or equal to that of the initial pictures. Applications relate to the transmission and storage of programs, editing, etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.