Method switching the video component(s) of a first digital, audio-visual program onto the video components of a second audio-visual digital, video-audio program to compensate their phase-shift
US6920178B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 12, 1999 |
| Grant date | Jul 19, 2005 |
| Priority date | — |
| Expiry date | Oct 12, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/242
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The video component(s) of a digital audio-visual first program are switched onto the video components of a second digital, audio-visual program by (1) switching onto the video component of the second program, subsequent to the switch command and to the end of a picture of the first program, and (2) replacing, as seen in the order of transmission, each non Intra picture of the component of a second program, with a picture having coding performed independently of (a) the picture data of the replaced picture and (b) of the contents of the pictures to which it refers until the beginning of the next Intra picture of the component of the second program.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.