Video signal coding apparatus
US6449310B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 1998 |
| Grant date | Sep 10, 2002 |
| Priority date | — |
| Expiry date | Nov 19, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N19/33
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A video signal coding apparatus comprises a divider 102 that divides an input digital video signal into an effective area and an additional area, an effective-area blocking device 103 for dividing the effective area into effective blocks, an effective-area encoder 104 that hight-efficiency-codes the effective blocks to create effective compressed blocks, an additional-area encoder 105 that hight-efficiency-codes the additional area to create additional compressed data, an additional-area blocking device 106 for dividing the additional compressed data into additional compressed blocks each a luminance signal for a plurality of pixels and at least one color difference signal for pixels arranged at the same position as the plurality of pixels, and a substitution device 107 that substitutes the additional compressed blocks for data in the same effective compressed blocks at predetermined positions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.