Patent · US Expired

Video storage

US5526057A · kind A · utility

3Cited by
5References
11Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 22, 1994
Grant dateJun 11, 1996
Priority date
Expiry dateSep 22, 2014

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N9/7925
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

A video storage arrangement produces a continuous video signal representing a test pattern. One luminance frame store is provided and two chrominance frame stores. A selection can be made between NTSC, and SECAM modes. Switches are provided for selecting between chrominance frame stores and between inverting and non-inverting mode. Depending upon the selected broadcast standard, these switches are driven from field and line clock signals to generate the required output field sequence in YC or composite form.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.