System for bidirectional audio and video recording and...

H - Electricity – 04 – N

Patent

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Details

H04N 7/14 (2006.01)

Patent

CA 2492515

The invention relates to a system for bidirectional audio and video recording and reproduction between at least two locations. Said system comprises, in addition to data transmission lines or transmitters and receivers, at least one respective television camera (7, 8, 9, 10; 25) and respective screen. The screen, which can be configured as a translucent projection screen (3) or as a belt (21), has at least one gap (4, 24) or break that acts as the view for the television camera (7, 8, 9, 10; 25). The projected image is blanked out for the television camera (7, 8, 9, 10; 25). The gap (4, 24) and screen, in particular the projection screen (3) can be displaced transversally to the gap (4, 24). The television cameras (7, 8, 9, 10; 25) and projectors (11, 12, 13, 14; 28) are positioned in a fixed manner inside the rotating cylinder (2), in such a way that the television cameras (7, 8, 9, 10; 25) compose images by scanning through the revolving gap (4, 24) and the projectors (11, 12, 13, 14; 28) simultaneously project stationary images onto the revolving projection screens (3).

L'invention concerne un système d'enregistrement et de reproduction bidirectionnels d'image et de son entre au moins deux positions, comportant des lignes de transmission ou des émetteurs et récepteurs, ainsi qu'au moins une caméra de télévision (7, 8, 9, 10, 25) et au moins un écran. Ledit écran pouvant être conçu en tant que mur de projection transparent (3) ou en tant que bande (21), comporte au moins un espace (4, 24) ou une interruption servant de fenêtre pour la caméra de télévision (7, 8, 9, 10, 25). L'image projetée est éteinte pour la caméra de télévision (7, 8, 9, 10, 25). L'espace (4, 24) et l'écran, notamment le mur de projection (3), peuvent être déplacés dans le sens perpendiculaire à l'espace (4, 24). Les caméras de télévision (7, 8, 9, 10, 25) et projecteurs (11, 12, 13, 14, 28) sont logés fixement dans le cylindre circulaire rotatif (2) de manière que les caméras de télévision (7, 8, 9, 10, 25) assemblent des images par balayage au travers des espaces périphériques (4, 24) et les projecteurs (11, 12, 13, 14, 28) projettent simultanément des images stationnaires sur les murs de projection périphériques (3).

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