Compressed video data stream switching method
US8743958B2 · kind B2 · utility
1Cited by
4References
9Claims
0Family size
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Key dates
| Filing date | Dec 10, 2008 |
| Grant date | Jun 3, 2014 |
| Priority date | — |
| Expiry date | Nov 23, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N21/23424
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
According to the compressed video data stream switching method for the transmission of a first data stream corresponding to a first video sequence, followed by, in a given switching point of this first stream, a second data stream corresponding to a second video sequence, the second data stream is modified prior to transmission, by a replacement of the bidirectional pictures with bidirectional commutation pictures of which the pictures blocks have a null residue and a null motion vector which is either forward or backward, according to the position of the blocks in the picture.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.