Method and system for processing two analog composite video...

H - Electricity – 04 – N

Patent

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Details

H04N 5/44 (2006.01) G06F 3/033 (2006.01) G06T 1/00 (2006.01) H04N 5/45 (2006.01) H04N 7/16 (2006.01)

Patent

CA 2191631

Disclosed is a method and apparatus for processing two analog composite video signals to be displayed to a human observer. The system includes at least a first and a second video source for generating first and second analog composite video signals respectively, and a selector coupled to the first and second video sources. The selector is operative to supply either the first or second analog composite video signal to one input of a video processor and independently and simultaneously supply either the first or second analog composite video signal to a second input of the video processor. The video processor is operative under control of a CPU to generate an output analog composite video signal comprised of a portion of the analog composite video signal supplied to the video processor's first input and a portion of the analog composite video signal supplied to the video processor's second input.

L'invention est constitué par une méthode et un appareil servant à traiter deux signaux vidéo composites analogiques à afficher à l'intention d'un observateur humain. Le système comporte au moins une première et une seconde source vidéo qui engendrent respectivement un premier et un second signaux vidéo composites analogiques, et un sélecteur couplé à la première et à la seconde sources vidéo. Ce sélecteur fournit le premier ou le second signal vidéo composite analogique à une entrée d'un processeur vidéo et indépendamment et simultanément fournit le premier ou le second signal vidéo composite analogique à une seconde entrée du processeur vidéo. Sous la commande d'une unité centrale, celui-ci produit un signal vidéo composite analogique constitué d'une partie du signal vidéo composite analogique fourni à sa première entrée et d'une partie du signal vidéo composite analogique fourni à sa seconde entrée.

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