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WO1996001027B1 - Melangeur analogique d'effets d'incrustation couleur video - Google Patents

Melangeur analogique d'effets d'incrustation couleur video

Info

Publication number
WO1996001027B1
WO1996001027B1 PCT/US1995/008279 US9508279W WO9601027B1 WO 1996001027 B1 WO1996001027 B1 WO 1996001027B1 US 9508279 W US9508279 W US 9508279W WO 9601027 B1 WO9601027 B1 WO 9601027B1
Authority
WO
WIPO (PCT)
Prior art keywords
video signal
analog video
analog
time delay
input
Prior art date
Application number
PCT/US1995/008279
Other languages
English (en)
Other versions
WO1996001027A1 (fr
Filing date
Publication date
Priority claimed from US08/268,764 external-priority patent/US5528309A/en
Application filed filed Critical
Priority to US08/765,464 priority Critical patent/US6421096B1/en
Priority to AU29151/95A priority patent/AU2915195A/en
Publication of WO1996001027A1 publication Critical patent/WO1996001027A1/fr
Publication of WO1996001027B1 publication Critical patent/WO1996001027B1/fr
Priority to US09/900,529 priority patent/US6501512B2/en

Links

Abstract

Technique améliorée de mélange de signaux d'image dirigé vers un écran. Deux signaux vidéo analogiques (tels qu'une entrée VGA analogique et un signal RVB analogique produits en réponse à une image numérique mémorisée fixe ou animée) peuvent être multiplexés sous forme analogique. Un mélangeur analogique d'effets d'incrustation couleur détecte une couleur de fond dans le premier signal vidéo (tel que l'entrée VGA analogique) et remplace la partie de ce premier signal vidéo avec le second signal vidéo. Les retards des premier et second signaux vidéo peuvent être ajustés de sorte qu'ils atteignent l'écran (au moyen d'une sortie de multiplexeur) au même moment. Un détecteur d'alignement peut tenter d'aligner deux signaux connus (tels qu'un signal de synchronisation VGA et un signal généré à cet effet), et peut ajuster un ensemble de retards dans le mélangeur analogique d'effets d'incrustation couleur jusqu'à ce que la différence temporelle entre les premier et second signaux vidéo descende au-dessous d'un certain seuil.
PCT/US1995/008279 1994-06-28 1995-06-27 Melangeur analogique d'effets d'incrustation couleur video WO1996001027A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US08/765,464 US6421096B1 (en) 1994-06-28 1995-06-27 Analog video chromakey mixer
AU29151/95A AU2915195A (en) 1994-06-28 1995-06-27 Analog video chromakey mixer
US09/900,529 US6501512B2 (en) 1994-06-28 2001-07-06 Method and apparatus for automatic calibration of analog video chromakey mixer

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/268,764 1994-06-28
US08/268,764 US5528309A (en) 1994-06-28 1994-06-28 Analog video chromakey mixer

Publications (2)

Publication Number Publication Date
WO1996001027A1 WO1996001027A1 (fr) 1996-01-11
WO1996001027B1 true WO1996001027B1 (fr) 1996-02-08

Family

ID=23024377

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1995/008279 WO1996001027A1 (fr) 1994-06-28 1995-06-27 Melangeur analogique d'effets d'incrustation couleur video

Country Status (3)

Country Link
US (2) US5528309A (fr)
AU (1) AU2915195A (fr)
WO (1) WO1996001027A1 (fr)

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