Multi-frequency acoustic vibration transmission method and...

G - Physics – 10 – K

Patent

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Details

G10K 15/04 (2006.01) B06B 1/04 (2006.01) B06B 3/00 (2006.01) G10K 11/22 (2006.01)

Patent

CA 2457877

A method and system (50) for inducing multi-frequency vibrations in a vibration propagating structure, for example a seat (52), is disclosed. The system is comprised of an acoustic vibration transducer unit (12) mounted on a relatively flat and rigid surface (54') such that the direction of movement of an actuating element in the unit is parallel to the surface. When the unit is driven by an amplified low frequency audio signal a person sitting in the seat experiences vibrations. Additionally, a series of vibration propagating structures, for example a row of seats at a movie theatre, can be connected in series via vibration-propagating members (60) between adjacent seats thereby allowing a single acoustic vibration transducer unit to propagate vibrations to all connected seats.

L'invention concerne un procédé et un système (50) permettant d'induire des vibrations multifréquences dans une structure propageant les vibrations, par exemple un siège (52). Ce système est constitué d'une unité transductrice de vibrations acoustiques (12) fixée sur une surface relativement plate et rigide (54') de façon que la direction de mouvement d'un élément d'activation dans l'unité soit parallèle à la surface. Lorsque cette unité est excitée par un signal audio basse fréquence amplifié, une personne assise sur le siège ressent des vibrations. En outre, une série de structures propageant les vibrations, par exemple une rangée de sièges dans un cinéma, peuvent être reliées en série par l'intermédiaire d'éléments propagateurs de vibrations (60) situés entre des sièges adjacents, ce qui permet qu'une seule unité transductrice de vibrations acoustiques transmette des vibrations à tous les sièges reliés.

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