SU1550635A2 - Method of reproduction of colour television picture - Google Patents

Abstract

The invention relates to a color television technique. The purpose of the invention is to reduce the frequency band of the primary video signals and the horizontal frequency while maintaining the number of lines of the reproduced image. To achieve the goal, the digital signals of the primary colors are divided into N streams before being memorized successively in rows, and then all N signals are read simultaneously, while sequential reading of fields of the primary colors for the N signals is tripled at three times the speed. The resulting sequence of N video signals simulates the N electron beams of a signal-to-light converter, and the electron beams are arranged in a vertical plane. The device implementing this method contains ADC 1, demultiplexers 2, 3, memory devices 4-7, switch 8, DAC 9, signal-to-light converter 10, deflection unit 11, rotating disk 12 with light filters, electric motor 13 and control unit 14. 1 il.

Description

of

counter circuits, comparison circuits,

believe in a vertical plane

Claims (1)

SUMMARY OF THE INVENTION A method for reproducing a color television image by auth. No. 1262745, characterized in that, in order to reduce the frequency band of the video signals of the primary colors and the horizontal frequency while maintaining the number of lines of the reproduced image, the color signals before storing are sequentially divided into N s | the signals, and then all N signals are read at the same time, the resulting electron sequence of color signals modulates the N electron beams of the signal-to-light converter, which are arranged in a vertical plane.