Patent · US Expired

Training signal for maintaining the correct phase and gain relationship between signals in a two-signal high definition television system

US4947241A · kind A · utility

2Cited by
24References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 1, 1989
Grant dateAug 7, 1990
Priority date
Expiry dateMay 1, 2009

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH04N11/26
  • WIPO fieldAudio-visual technology
  • WIPO sectorElectrical engineering

Abstract

An improved color subcarrier and amplitude reference signal and means for its utilization are provided for color television systems, particularly high definition, wide aspect ratio television systems wherein the high definition signal is decomposed into two signals for transmission via two separate channels and recombined at the receiver to reproduce the original high definition image.

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