Laser-based communications with a remote information source

H - Electricity – 04 – B

Patent

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H04B 10/26 (2006.01)

Patent

CA 2546510

System and techniques for transmitting information from a remote information source use a reflector for reflecting a laser beam or other light source back to its originating location. A reflector coupled to an information source receives a laser beam from a laser source. A movement of at least one surface of the reflector is controlled to modulate the laser beam, and the modulated laser beam is reflected toward the laser source. The modulated laser beam can be received by a receiver at or near the laser source to detect and decode data embedded in the modulated laser beam.

L'invention concerne un système et des techniques permettant de transmettre des informations à partir d'une source d'informations distante et faisant appel à un réflecteur destiné à réfléchir un faisceau laser ou une autre source lumineuse en retour vers son point d'origine. Un réflecteur couplé à une source d'informations reçoit un faisceau laser en provenance d'une source laser. Un mouvement d'au moins une surface du réflecteur est régulé en vue d'une modulation du faisceau laser, le faisceau laser modulé étant réfléchi vers la source laser. Le faisceau laser modulé peut être reçu par un récepteur au niveau ou au voisinage de la source laser en vue de la détection et du décodage de données intégrées dans le faisceau laser modulé.

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