Method of converting 4:2:0p/4:2:2p progressive scan data and converter
US5835152A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 22, 1997 |
| Grant date | Nov 10, 1998 |
| Priority date | — |
| Expiry date | Jan 22, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N9/64
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method for converting 4:2:0p serial data containing a first line multiplexing luminance data and color difference data and a second line multiplexing only luminance data in pairs into 4:2:2 interlaced data comprising steps of: demultiplexing 4:2:0p data into luminance data and color difference data at a predetermined horizontal picture element position on a first line; demultiplexing 4:2:0p data into luminance data at the predetermined horizontal picture element position on a second line; obtaining an arithmetic mean value of the demultiplexed luminance data on a first line and the demultiplexed luminance data on a second line; and generating 4:2:2 interlaced data at the predetermined horizontal picture element position by multiplexing the obtained arithmetic mean value as luminance data and the demultiplexed color difference data in pairs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.