Abstract: The present invention relates to a sound system (10) for a pool with at least a first wall (101A) and a second wall (102A), one of which is intended to be at least partially submerged in the pool (1) and the other to be above water, a first and a second electroacoustic transducer (111, 112) attached to the first and second walls (101A, 102A) respectively, and a control unit (130) configured to control and power the first and second electroacoustic transducers (111, 112). The control unit (130) with a radio-frequency communication module (131), such as a Bluetooth™ or wifi™ communication module, including at least one antenna (131A) arranged in the sound system in such a way that the antenna is at least partly above a waterline (3) of the pool.

Abstract: The invention is for a communicating diving mask with a body including a frame (20) surrounding at least part of a user's face; a glass (10) surrounded by the frame (20), where the diving mask has an electromagnetic transducer (23) arranged in contact with the glass to vibrate it; and a microphone (22) arranged in the mask, and a control unit (25) configured to control the vibration of the electromagnetic transducer (23) on the basis of a signal transmitted by the microphone (22).

Abstract: The invention concerns a bedsore prevention device (20) designed to be equipped to a support element of a piece of receiving furniture. The prevention device (20) has a bearing surface (22), intended to be flush with a surface of the support element and to be in direct or indirect contact with a body part of the subject on which the subject is likely to develop bedsores, at least three electromechanical transducers arranged to urge the bearing surface (22) to move, the at least three transducers being arranged along the bearing surface (22), a control unit (26) for the at least three transducers, the control unit (26) being configured to control the at least three transducers to urge the bearing surface in a phase-shifted manner in order to simulate a mechanical traveling wave along the bearing surface.

Abstract: A motor vehicle inner trim panel having a molded core and: a base which is overmolded by the core in an attachment zone, the base being provided with forked ties which project from the core; a ring which is provided with receiving means interlocking with the forked ties, the ring further being provided with two electric connectors, the central opening of the ring being provided with a thread; a transducer which is provided with a generally cylindrical attachment portion (12) which is threaded and screwed into the opening, the free end of the attachment portion abutting in the zone so as to ensure gripping contact between the forked ties and the receiving means, the transducer further being provided with two reciprocal electric connectors on which each of the connectors abut, respectively.

Abstract: The invention relates to an electrodynamic transducer having a magnetic mass connected to a frame with first and second axially offset suspensions. The suspensions permit translational displacement of the magnetic mass with respect to the frame and have multiple springs. The direction of orientation of the springs of the first suspension is opposite that of the springs of the second suspension, such that each suspension blocks the axial rotation of the other suspension.

Abstract: The present invention relates to a device for attaching at least one acoustic panel (1) to a wall (P) characterized by having first attaching means (10) associated with wall (P) and second attaching means (20) associated with said acoustic panel(s) (1), said first (10) and second (20) attaching means being connected to each other by elastic connecting means (30). By adjusting the elasticity of the connecting means, the frequency of each acoustic panel can be individually tuned to treat the various sound frequency ranges. In addition, the device according to the invention enables the acoustic panels to be disconnected from the wall on which they are mounted, thus increasing the insulation of the room.

Abstract: The present invention relates to a device for attaching at least one acoustic panel (1) to a wall (P) characterized by having first attaching means (10) associated with wall (P) and second attaching means (20) associated with said acoustic panel(s) (1), said first (10) and second (20) attaching means being connected to each other by elastic connecting means (30). By adjusting the elasticity of the connecting means, the frequency of each acoustic panel can be individually tuned to treat the various sound frequency ranges. In addition, the device according to the invention enables the acoustic panels to be disconnected from the wall on which they are mounted, thus increasing the insulation of the room.

Abstract: The invention concerns a heating, ventilating and/or air conditioning device comprising at least an air distribution channel having a downstream end, and at least an air diffusing element arranged at said one downstream end. The invention is characterized in that the air diffusing element (1) comprises a support (11) provided with through orifices (17) and covered over at least one of its faces with a material (12, 16), having air resistance ranged between 10 N.s.m−3 and 180 N.s.m−3.

Abstract: The invention concerns a heating, ventilating and/or air conditioning device comprising at least an air distribution channel having a downstream end, and at least an air diffusing element arranged at said one downstream end. The invention is characterised in that the air diffusing element (1) comprises a support (11) provided with through orifices (17) and covered over at least one of its faces with a material (12, 16), having air resistance ranging between 10 N.s.m −3 and 180 N.s.m−3 .