CONTOUR CORRECTION DEVICE FOR VIDEO SIGNAL

PURPOSE:To eliminate dispersion in a contour correction effect and to prevent the change of hue and that of saturation occurring by giving correlation on chrominance signal processors. CONSTITUTION:The output of comparators 8a and 8b corresponding to each color difference signal are OR-operated by a...

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Bibliographische Detailangaben
1. Verfasser:	MIZUKAWA YOSUKE
Format:	Patent
Sprache:	eng
Schlagworte:	ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY PICTORIAL COMMUNICATION, e.g. TELEVISION
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	PURPOSE:To eliminate dispersion in a contour correction effect and to prevent the change of hue and that of saturation occurring by giving correlation on chrominance signal processors. CONSTITUTION:The output of comparators 8a and 8b corresponding to each color difference signal are OR-operated by an OR circuit 1, and the output is supplied to each of color difference signal change-over switches 9a and 9b. The change-over switches 9a and 9b are controlled in common, and the switching operations of the switches are performed simultaneously, and as a result, no turbulence in the improvement of contour correction of each color difference signal is observed, and an adverse influence due to the change of the hue or that of the saturation, etc., can be eliminated.