AUTOMATIC SETUP SYSTEM FOR TELEVISION CAMERAS

A system is described for automatic adjustment of a color television camera (14) for correcting for geometrical errors in the raster and amplitude errors in the video. The system includes means (13, 27) for measuring the errors, positions, or amplitudes of the camera output signals at different loca...

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ASTLE B
description A system is described for automatic adjustment of a color television camera (14) for correcting for geometrical errors in the raster and amplitude errors in the video. The system includes means (13, 27) for measuring the errors, positions, or amplitudes of the camera output signals at different locations of the red, green, and blue rasters for simultaneously providing detected signals representing the detected error positions or amplitudes of these locations to a signal processing means (24). The processing means (24) selectively and separately processes said detected signals according to a plurality of algorithms for producing a plurality of correction signals. The correction signals are applied (28) to the camera (14) for adjusting the camera according to all of the correction signals before remeasuring the rasters. Systeme de reglage automatique pour une camera de television couleur (14) pour corriger les erreurs geometriques dans le canevas et les erreurs d'amplitude du video. Le systeme comprend des moyens (13, 27) de mesure des erreurs, positions ou amplitudes des signaux de sortie de la camera a differents emplacements des lignes rouges, vertes et bleues du canevas pour transmettre simultanement des signaux detectes correspondant aux erreurs de positions ou d'amplitudes de ces regions a des moyens de traitement des signaux (24). Les moyens de traitement (24) selectionnent et separent lesdits signaux detectes en fonction d'une pluralite d'algorithmes pour produire une pluralite de signaux de correction. Les signaux de correction sont appliques (28) a la camera (14) pour regler la camera en fonction de tous les signaux de correction avant de remesurer les lignes de canevas.
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subjects ELECTRIC COMMUNICATION TECHNIQUE
ELECTRICITY
PICTORIAL COMMUNICATION, e.g. TELEVISION
title AUTOMATIC SETUP SYSTEM FOR TELEVISION CAMERAS
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