Data transmission system comprising a data transmitter and a...

H - Electricity – 04 – N

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H04N 7/08 (2006.01) G04G 21/00 (2010.01) G04G 7/00 (2006.01) H04N 5/44 (2006.01)

Patent

CA 2193614

Data transmission system comprising a data transmitter (1) including : - swept frame display means (2), and - a generator of composite video signals (20, 22) to control the operation of said swept frame display means (2); and a portable information detection device (7) for receiving said transmitted data by said data transmitter (1). The data transmitter (1) further comprises means (23) for modulating at least one of the elementary signals constituting said composite video signals with the data to be transmitted, and said information detection device (7) further comprises any inductive antenna (44, 45) for detecting said modulated elementary signal.

ystème de transmission de données comprenant un émetteur de données (1) ayant : des moyens d'affichage d'image balayée (2) et un générateur de signaux vidéo composites (20, 22) pour commander le fonctionnement desdits moyens d'affichage (2); et un dispositif portatif de détection d'information (7) pour recevoir lesdites données transmises par ledit émetteur de données (1). L'émetteur de données (1) comprend en outre des moyens (23) de moduler au moins des signaux élémentaires constituant lesdits signaux vidéo avec les données à transmettre, et ledit dispositif de détection d'information (7) comprend également toute antenne inductive (44, 45) utilisée pour détecter ledit signal élémentaire modulé.

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