High resolution television.

摘要

A method and apparatus are disclosed for increasing vertical resolution of television by modulating vertical deflection of the camera scanning beam a significant number of cycles per line, and modulating the vertical deflection of the receiver display beam in phase with the modulation of the camera while producing the video signal transmitted. The receiver is provided with its own modulating oscillator operating at the same stable frequency as the modulating frequency of the camera, and phase synchronized by information transmitted by the camera. The amplitude of modulation is adjusted for each undulating line to optimally intrude the area of adjacent lines of a frame without crossing or touching. A frequency multiplier (32) for multiplying the color sub-carrier frequency may be employed for modulation of vertical deflection in both the camera (10) and the receiver in order that there will be a whole number of modulation cycles for each line.