Patent · US Expired

Method of converting 4:2:0p/4:2:2p progressive scan data and converter

US5835152A · kind A · utility

8Cited by
4References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 22, 1997
Grant dateNov 10, 1998
Priority date
Expiry dateJan 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.