Patent · US Expired

Video signal coding apparatus

US6449310B1 · kind B1 · utility

0Cited by
3References
19Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 19, 1998
Grant dateSep 10, 2002
Priority date
Expiry dateNov 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.