Abstract: A headrest suitable for being fastened to a vehicle seat having: an upper support portion, a reinforcing frame connected to the upper support portion for fastening the upper support portion to the vehicle seat, and an array of microphones comprising microphones disposed inside seats obtained in the headrest, in such a way that the microphones can be used to capture the sounds from the user sitting on the seat where the headrest is connected, as well as environmental microphones to capture the environmental noise perceived around the headrest.

Abstract: A headrest suitable for being fastened to a vehicle seat having: an upper support portion, a reinforcing frame connected to the upper support portion for fastening the upper support portion to the vehicle seat, and an array of microphones comprising microphones disposed inside seats obtained in the headrest, in such a way that the microphones can be used to capture the sounds from the user sitting on the seat where the headrest is connected, as well as environmental microphones to capture the environmental noise perceived around the headrest.

Abstract: A loudspeaker system for vehicle has a wall of a frame of a vehicle that separates an exterior from an interior and has a through hole, a box mounted in the wall in correspondence of the through hole, a loudspeaker mounted in the box, a back resonance chamber formed between the membrane of the loudspeaker and the walls of the box, a through hole obtained in a wall of the box and disposed in register with the hole of the wall of the frame of the vehicle and a partition of sound-absorbing material that closes the through hole of the wall of the box.

Abstract: A loudspeaker system for vehicle has a wall of a frame of a vehicle that separates an exterior from an interior and has a through hole, a box mounted in the wall in correspondence of the through hole, a loudspeaker mounted in the box, a back resonance chamber formed between the membrane of the loudspeaker and the walls of the box, a through hole obtained in a wall of the box and disposed in register with the hole of the wall of the frame of the vehicle and a partition of sound-absorbing material that closes the through hole of the wall of the box.

Abstract: An electromagnetic transducer is disclosed including a ring magnetic assembly, a first coil disposed in the magnetic field generated by the magnetic assembly, such that the first coil reciprocally moves with respect to the magnetic assembly, at least one elastic suspension-connecting the magnetic assembly to the first coil to allow for reciprocal movement between the first coil and the magnetic assembly, a control coil connected to the magnetic assembly by an elastic suspension to allow for reciprocal movement of the control coil with respect to the magnetic assembly, a vibrating surface connected to the first coil or the magnetic assembly or the control coil in order to vibrate, and an electronic control to control an excitation current of the control coil in order to generate a mechanical force adapted to control the mechanical vibration of the vibrating surface.

Abstract: An electroacoustic transducer has a ring-shaped magnetic assembly that generates a magnetic field, an elastic suspension connected to the magnetic assembly, a support connected to the elastic suspension and supporting a coil adapted to move in the magnetic field generated by the magnetic assembly, and an acoustic membrane connected to the support of the coil in order to vibrate and emit a sound. The magnetic assembly has a thin housing and support structure made of non-magnetic material, and a plurality of magnets with magnetic axis (A) and axial anisotropy, said magnets being disposed side by side, inside said thin housing and support structure that acts as bearing structure for the transducer and as containment structure for the magnets.

Abstract: A ribbon transducer comprising a ribbon made of conductive material, two rigid supports where the ends of the ribbon are fixed, and a tensioning and damping system provided at least at one end of the conductive ribbon to tension the ribbon and damp its movements. The tensioning and damping system comprises a leaf spring comprising a first end section to which said ribbon is fixed and a second end section fixed to said rigid support, in such a way to exert a tensile force in the tensioning direction of the ribbon.

Abstract: A ribbon transducer (101) is disclosed, comprising: a ribbon made of conductive material (2), a damping system (4) arranged at least at one end of the conductive ribbon (2), and two rigid supports (103) where the ends of the ribbon (2) are fixed. The damping system (104) comprises a suspension composed of at least one wire (105), anchoring means (107) to connect said ribbon (2) to said wire (105), and elastic means (150) operatively connected to said wire to generate mechanical stress.

Abstract: A ribbon transducer comprising a ribbon made of conductive material, two rigid supports where the ends of the ribbon are fixed, and a tensioning and damping system provided at least at one end of the conductive ribbon to tension the ribbon and damp its movements. The tensioning and damping system comprises a leaf spring comprising a first end section to which said ribbon is fixed and a second end section fixed to said rigid support, in such a way to exert a tensile force in the tensioning direction of the ribbon.

Abstract: A ribbon transducer (101) is disclosed, comprising: a ribbon made of conductive material (2), a damping system (4) arranged at least at one end of the conductive ribbon (2), and two rigid supports (103) where the ends of the ribbon (2) are fixed. The damping system (104) comprises a suspension composed of at least one wire (105), anchoring means (107) to connect said ribbon (2) to said wire (105), and elastic means (150) operatively connected to said wire to generate mechanical stress.