Abstract

The acoustic enclosure (1) comprises a body (2) and a removable, non-planar covering plate (8) comprising a front portion (10) and a side portion (9). This covering plate (8) is fastened to the body by: - at least one hinge (17) for connecting and positioning the front portion (10) of the covering plate, comprising a male part (18) with a projecting rod (19), and a female part (20) with a receptacle (21) for receiving the projecting rod (19), and - at least one assembly (39) for connecting the side portion (9) of the plate to the body (2), comprising at least one attachment part capable of cooperating with the body (2) despite a variable relative positioning between the body (2) and the side portion (9) of the covering plate (8).

IPC Classes  ?

• H04R 1/02 - CasingsCabinetsMountings therein
• E05D 7/00 - Hinges or pivots of special construction

Abstract

The invention relates to a system for generating sound waves for at least two separate zones of a single space. The system includes, for each zone of said space: at least one array of high-frequency loudspeakers forming a directional sound wave; and at least one low-frequency loudspeaker. The system also comprises means for audio processing of the signals transmitted to the loudspeakers, which means control at least one loudspeaker to generate destructive sound waves in at least one zone of said space and to obtain distinct sound contents in said at least two distinct zones of said space. To do this, the audio-processing means control each low-frequency loudspeaker individually and each array of high-frequency loudspeaker mutually in order to generate the destructive sound waves.

IPC Classes  ?

• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
• H04R 3/14 - Cross-over networks

Abstract

The invention relates to an active noise-cancelling audio headphones having two circum-aural earpieces, comprising a partition designed to face an ear; said partition incorporating at least one vent passing through said partition so as to generate intentional leaks having a length greater than 1.5 mm and a width selected in such a way that there are either a ratio between said length and said width is less than or equal to 8:1 if a median section is greater than 1.7 mm2; or a ratio between said length and said width is less than or equal to 4:1 if said median section is less than 1.7 mm2.

IPC Classes  ?

• H04R 1/10 - EarpiecesAttachments therefor

Goods & Services

Presentation and demonstration services, in a store, for sale to the public of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; presentation and demonstration services, online via a global computer network, for sale to the public of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; retail store services for high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; online retail services via a global computer network, for high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; organization and planning services, for promotional and commercial purposes, for listening to music and sound and audiovisual projection sessions, in a store, with a view to the sale thereof to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; organization and planning services, for promotional and commercial purposes, for music and sound listening and audiovisual projection sessions, online via a global computer network, for sale to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; presentation and demonstration services, via a global computer network and in a virtual reality and augmented reality environment, for sale to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; organization and planning services, for promotional and commercial purposes, of music and sound listening and audiovisual presentation sessions, via a global computer network and in a virtual reality and augmented reality environment, for sale to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; commercial information and advice with respect to the selection for purchase of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor. Installation, servicing, repair, maintenance of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; information and advice with respect to the installation, servicing, maintenance of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor. Technical advice concerning the selection of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, the component parts thereof, including their stands as well as the remote control and power supply devices therefor; technical evaluations, advice and tests concerning the design (engineers' services) of facilities and spaces for broadcasting and listening to sound and music, as well as audiovisual facilities and rooms and recording studios; technical testing of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; technical advisory services with respect to installation, servicing and repair of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; drawing up technical plans unrelated to business dealings for the design of facilities and spaces for broadcasting and listening to sound and music, as well as audiovisual facilities and rooms and recording studios.

Goods & Services

Music headphones; personal headsets for apparatus for the recording, transmission or reproduction of sound; earpads for music headsets; stereo earphones for music; wireless audio in-ear headphones and heasets; headsets with microphones; virtual reality headsets.

Goods & Services

(1) Services de présentation et de démonstration, dans un magasin, en vue de leur vente au public, d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports ainsi que leurs dispositifs de commande à distance et d'alimentation électrique; services de présentation et de démonstration, en ligne via un réseau informatique mondial, en vue de leur vente au public, d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports ainsi que leurs dispositifs de commande à distance et d'alimentation électrique; services de vente au détail en magasin, d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports ainsi que leurs dispositifs de commande à distance et d'alimentation électrique; services de vente au détail en ligne via un réseau informatique mondial, d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports ainsi que leurs dispositifs de commande à distance et d'alimentation électrique; services d'organisation et de planification, à buts promotionnel et commercial, de séances d'écoutes musicales et sonores et de projections audiovisuelles, dans un magasin, en vue de la vente au public, d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports et leurs dispositifs de commande à distance et d'alimentation électrique; services d'organisation et de planification, à buts promotionnel et commercial, de séances d'écoutes musicales et sonores et de projections audiovisuelles, en ligne via un réseau informatique mondial, en vue de la vente au public, d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports et leurs dispositifs de commande à distance et d'alimentation électrique; services de présentation et de démonstration, via un réseau informatique mondial et dans un environnement de réalité virtuelle et de réalité virtuelle augmentée, en vue de leur vente au public, d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports ainsi que leurs dispositifs de commande à distance et d'alimentation électrique; services d'organisation et de planification, à buts promotionnel et commercial, de séances d'écoutes musicales et sonores et de projections audiovisuelles, via un réseau informatique mondial et dans un environnement de réalité virtuelle et de réalité virtuelle augmentée, en vue de la vente au public, d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports et leurs dispositifs de commande à distance et d'alimentation électrique; informations et conseils commerciaux en matière de choix pour l'achat d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports et leurs dispositifs de commande à distance et d'alimentation électrique. (2) Services d'installation, d'entretien, de réparation, de maintenance d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports et leurs dispositifs de commande à distance et d'alimentation électrique; informations et conseils en matière d'installation, d'entretien, de maintenance d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports et leurs dispositifs de commande à distance et d'alimentation électrique. (3) Conseils techniques concernant le choix d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports et leurs dispositifs de commande à distance et d'alimentation électrique; évaluations, conseils et tests techniques concernant la conception (travaux d'ingénieurs) d'installations et d'espaces de diffusion et d'écoute de sons et de musique, ainsi que d'installations et de salles audiovisuelles et de studio d'enregistrement; tests techniques d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports et leurs dispositifs de commande à distance et d'alimentation électrique; services de conseils techniques en matière d'installation, d'entretien et de réparation d'appareils et instruments audio haute-fidélité, de casques d'écoute, d'enceintes audio et de haut-parleurs, de préamplificateurs et d'amplificateurs, d'équipements audiovisuels et d'appareils pour le traitement des signaux sonores ainsi que pour la transmission, la reproduction, la lecture et la diffusion en continu, en progressif ou en différé, du son ou des images, de leurs parties constitutives, y inclus leurs supports et leurs dispositifs de commande à distance et d'alimentation électrique; élaboration de plans techniques sans rapport avec la conduite des affaires pour la conception d'installations et d'espaces de diffusion et d'écoute de sons et de musique, ainsi que d'installations et de salles audiovisuelles et de studios d'enregistrement.

Goods & Services

Product demonstration and sales demonstration of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, and of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor; Online product demonstration and online sales demonstration of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images and of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor; retail store services featuring high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images and of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor; online retail store services via a global computer network, featuring high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images and of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor; Business organization and business planning services, for promotional and commercial purposes, for listening to music and sound and audiovisual projection sessions, in a store, with a view to the sale thereof to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images and of the component parts thereof, in particular the media and devices for remote control and power supply therefor; Business organization and business planning services, for promotional and commercial purposes, for music and sound listening and audiovisual projection sessions, online via a global computer network, for sale to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images and of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor; Product demonstration and sales demonstration, via a global computer network and in a virtual reality and augmented reality environment of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images and of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor; Business organization and business planning services, for promotional and commercial purposes, of music and sound listening and audiovisual presentation sessions, via a global computer network and in a virtual reality and augmented reality environment, for sale to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images and of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor; commercial information and business advice with respect to the selection for purchase of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, and of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor Installation, servicing, repair, maintenance of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, and of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor; information and advice with respect to the installation, servicing, maintenance of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, and of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor Technical advice concerning the technology in the selection of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for the processing of sound signals as well as for the transmission, reproduction, playback and broadcasting by streamed, progressive or deferred transmission, of sound or images, and in the selection of the component parts thereof, in particular their stands as well as the remote control and power supply devices therefor; Engineering services in the nature of technical evaluations, advice and tests concerning the design of facilities and spaces for broadcasting and listening to sound and music, as well as audiovisual facilities and rooms and recording studios; technical testing of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, and of the component parts thereof, in particular the media and devices for remote control and power supply therefor; drafting of technical plans and engineering drawings for others, unrelated to business dealings for the design of facilities and spaces for broadcasting and listening to sound and music, as well as audiovisual facilities and rooms and recording studios

Abstract

3, so that said at least one woofer is two-directional; and —at least one mid-range/tweeter, associated with a closed rear part comprising a solid wall and/or a closed cell foam so that at least one mid-range/tweeter is mono-directional.

IPC Classes  ?

• B60N 2/879 - Head-rests with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
• B60R 11/02 - Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the likeArrangement of controls thereof
• B64D 11/00 - Passenger or crew accommodationFlight-deck installations not otherwise provided for
• B60R 11/00 - Arrangements for holding or mounting articles, not otherwise provided for

Goods & Services

(1) Casques d'écoute pour la musique; casques avec microphone individuels pour appareils pour l'enregistrement, la transmission ou la reproduction de sons; coussinets pour casques d'écoute de musique; écouteurs stéréo pour la musique; oreillettes et casques audio sans fil pour la musique; casques d'écoute avec microphones pour la musique.

Abstract

The invention relates to a processing device for processing an input signal (Si), generating an output signal (So) intended to be fed to a loudspeaker, said device comprising a processing line (Lt) comprising: an estimation module for estimating expected movements (Da) of the loudspeaker based on the input signal (Si); a determination module for determining an adaptive control signal (CmdA) to be transmitted to the loudspeaker in order to get as close as possible to the expected movements (Da) while correcting the nonlinearities of the loudspeaker; at least one transmission line (L1, L2) for the input signal (Si), delivering at least one non-adaptive control signal (Cmd1); and an adder, delivering the output signal (So) by summing the adaptive control signal (CmdA) and the at least one non-adaptive control signal (Cmd1).

IPC Classes  ?

• H04R 1/02 - CasingsCabinetsMountings therein
• H04R 3/02 - Circuits for transducers for preventing acoustic reaction
• H04R 29/00 - Monitoring arrangementsTesting arrangements
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means

Goods & Services

Headphones

Abstract

The invention relates to a high-performance audio amplifier (102) intended to control at least one loudspeaker (R44), the amplifier comprising a pre-amplification stage (301) that receives an input signal (S1), a power amplification stage (302) connected to the pre-amplification stage (301) and a negative feedback loop that delivers, to the pre-amplification stage (301), an image of the output signal (3), the power amplification stage (302) comprising two supply circuits (155a, 155b) comprising a MOSFET (M1, M2). The invention is characterized in that it comprises: a sub-circuit for assisting with charging, a sub-circuit for assisting with discharging said MOSFET (M1, M2), and a voltage-shifting sub-circuit.

IPC Classes  ?

• H03F 3/30 - Single-ended push-pull amplifiersPhase-splitters therefor
• H03F 3/21 - Power amplifiers, e.g. Class B amplifiers, Class C amplifiers with semiconductor devices only
• H03F 3/183 - Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
• H03F 3/45 - Differential amplifiers
• H03F 1/02 - Modifications of amplifiers to raise the efficiency, e.g. gliding Class A stages, use of an auxiliary oscillation

Abstract

Earpiece of an audio headset comprising a front wall (20), and comprising a loudspeaker (40), equipped with a bowl (10), and a cap (30) that are fixed to the front wall (20). The loudspeaker (40) and the cap (30) are fixed removably on the front wall (20) by the reversible cooperation of mechanical means located on the cap (30) and on the bowl (20), with corresponding mechanical means located on the front wall (20). The mechanical means of the bowl (10) comprise at least one protuberance (15) intended to cooperate with a deformable lug (25) of the front wall (20), and the mechanical means of the cap (30) comprise receiving sites (31, 32, 33) for screws (34, 35, 37) for fixing the cap (30) on the front wall (20), the cap pressing on the loudspeaker (40) so as to ensure that the bowl bears against the front wall (20).

IPC Classes  ?

• H04R 1/10 - EarpiecesAttachments therefor

Abstract

The invention relates to a system for generating sound waves for at least two separate zones (Z31, Z32) of a single space (3000). The system comprises, for each zone (Z31, Z32) of said space (3000): at least one array (R21, R22) of tweeters (HPA21, HPA22) forming a directional sound wave; and at least one woofer (HPG21, HPG22). The system also comprises means for audio processing of the signals transmitted to the loudspeakers (HPG21, HPG22, HPA21, HPA22), which means control at least one loudspeaker (HPG21, HPG22, HPA21, HPA22) to generate destructive sound waves (Od35-Od38) in at least one zone (Z31, Z32) of said space (3000) and to obtain distinct sound contents in said at least two distinct zones (Z31, Z32) of said space (3000). To do this, the audio-processing means control each woofer (HPG21, HPG22) individually and each array (R21, R22) of tweeters (HPA21, HPA22) mutually in order to generate the destructive sound waves (Od35-Od38).

IPC Classes  ?

• H04R 1/40 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
• H04S 7/00 - Indicating arrangementsControl arrangements, e.g. balance control
• H04R 3/14 - Cross-over networks
• H04R 3/12 - Circuits for transducers for distributing signals to two or more loudspeakers

Abstract

AMENDMENT TO THE ABSTRACT The invention relates to an enclosure for diffusing sound by reverberation comprising:—a loudspeaker comprising a fixed frame, a cylindrical support and a membrane connected to an upper bearing surface of the frame; and—a wave guide mounted on the upper bearing surface, the wave guide being substantially in the form of a truncated pyramid with a long wall forming a front face, a short wall and lateral uprights; the wave guide comprising at least one acoustic wall fastened to the lateral uprights, the acoustic wall extending tangentially relative to the generatrix line of the cylindrical support closest to the front face.

IPC Classes  ?

• H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
• H04R 1/02 - CasingsCabinetsMountings therein
• H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
• H04R 7/12 - Non-planar diaphragms or cones
• H04R 1/30 - Combinations of transducers with horns, e.g. with mechanical matching means

Goods & Services

Presentation and demonstration services, in a store or online via a global computer network, with a view to the sale thereof to the public, for high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; presentation and demonstration service, via a global computer network and in an augmented reality environment, with a view to the sale thereof to the public, for high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; retail services in stores or online via a global computer network, for high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; online retail services via a global computer network and in an augmented reality environment, with a view to the sale thereof to the public, for high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; organization and planning services, for promotional and commercial purposes, for listening to music and sound and audiovisual projection sessions, in a store, with a view to the sale thereof to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; organization and planning services, for promotional and commercial purposes, for listening to music and sound and audiovisual projection sessions, online via a global computer network and in an augmented reality environment, with a view to the sale thereof to the public, of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; commercial information and advice for consumers with respect to selection for the purchase of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; advice and assistance in business administration and management in connection with the operation of a sales store for high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor. Installation, servicing, repair, maintenance and troubleshooting of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; information and advice with respect to the installation, servicing, maintenance and troubleshooting of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor. Technical tests, advice and evaluations concerning the design (engineers' services) of installations and rooms for broadcasting and listening to music, as well as audiovisual and recording studio facilities and rooms; technical testing of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; technical advisory services with respect to installation, servicing and repair of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor; drafting technical plans not related to conducting business for the design of facilities and rooms for listening to and broadcasting music, as well as recording facilities and rooms and recording studios; technical advice concerning the selection of high fidelity audio apparatus and instruments, headsets, audio speakers and loudspeakers, preamplifiers and amplifiers, audiovisual equipment and apparatus for processing sound signals as well as for transmission, reproduction, playback and streaming, in progressive or deferred time, of sound or images, of the component parts thereof, including the media and devices for remote control and power supply therefor.

Abstract

The invention relates to an audio headset with active noise reduction that has two circumaural earpieces (10a) comprising: a partition (15) designed to be arranged facing an ear: the partition (15) integrating at least one vent (24) that passes through the partition (15) in such a way as to generate intentional leaks and has: a length (L1) greater than 1.5 mm; and a width (D1) selected such that: - a ratio between the length (L1) and width (D1) is less than or equal to 8:1 if a median cross-section is greater than 1.7 mm²; or - a ratio between the length (L1) and the width (D1) is less than or equal to 4:1 if the median cross-section is less than 1.7 mm².

IPC Classes  ?

• G10K 11/178 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effectsMasking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
• H04R 1/10 - EarpiecesAttachments therefor
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means

Abstract

The invention relates to a headrest equipped with loudspeakers, comprising: - at least one woofer speaker (20) associated with an open rear part (31), comprising a rear grating (34) and/or open-cell or semi-open-cell foam (33) with a density of between 8 and 60 kg/m3, so that said at least one woofer speaker (20) is two-directional; and - at least one mid-range/tweeter speaker (21), associated with a closed rear part comprising a solid wall and/or a closed-cell foam so that said at least one mid-range/tweeter loudspeaker (21) is one-directional.

IPC Classes  ?

• B60N 2/879 - Head-rests with additional features not related to head-rest positioning, e.g. heating or cooling devices or loudspeakers
• B60N 2/885 - Head-rests provided with side-rests
• B60R 11/02 - Arrangements for holding or mounting articles, not otherwise provided for for radio sets, television sets, telephones, or the likeArrangement of controls thereof
• B60R 11/00 - Arrangements for holding or mounting articles, not otherwise provided for

Abstract

The invention relates to a processing device (30a) for processing an input signal (Si), generating an output signal (So) intended to be fed to a loudspeaker (13), said device comprising a processing line (Lt) comprising: an estimation module (31) for estimating expected movements (Da) of the loudspeaker (13) based on the input signal (Si); a determination module (32) for determining an adaptive control signal (CmdA) to be transmitted to the loudspeaker (13) in order to get as close as possible to the expected movements (Da) while correcting the nonlinearities of the loudspeaker (13); at least one transmission line (L1, L2) for the input signal (Si), delivering at least one non-adaptive control signal (Cmd1); and a summer (14), delivering the output signal (So) by summing the adaptive control signal (CmdA) and the at least one non-adaptive control signal (Cmd1).

IPC Classes  ?

• H04R 3/00 - Circuits for transducers

Goods & Services

Sound recording, transmission and reproduction apparatus; loudspeaker cabinets and their component parts; sound amplifiers and component parts thereof; audio receivers; headsets; wireless transmitters and receivers; high-fidelity audio apparatus; holders adapted for loudspeakers; apparatus for reducing noise in audio recording systems; portable sound reproduction apparatus; remote control apparatus; loudspeakers; high fidelity audio apparatus for land, air or water locomotion apparatus. Construction services; services for installation, servicing, repair, maintenance, modernization and troubleshooting of electric and electronic apparatus and equipment, apparatus for recording, transmission and reproduction of sound, loudspeaker cabinets and component parts, sound amplifiers and component parts, audio receivers, headsets, wireless transmitters and receivers, high fidelity audio apparatus, stands adapted for loudspeakers, apparatus for reducing noise in audio recording systems, portable sound reproduction apparatus, remote control apparatus, loudspeakers, high fidelity audio apparatus land, air or water locomotion apparatus; information and advisory services with respect to installation, servicing, repair, maintenance, modernization and troubleshooting of electric and electronic apparatus and equipment, apparatus for recording, transmission and reproduction of sound, loudspeaker cabinets and component parts, sound amplifiers and component parts, audio receivers, headsets, wireless transmitters and receivers, high fidelity audio apparatus, stands adapted for loudspeakers, apparatus for reducing noise in audio recording systems, portable sound reproduction apparatus, remote control apparatus, loudspeakers, high fidelity audio apparatus land, air or water locomotion apparatus. Scientific and technological services as well as research and design services relating thereto; conducting of technical project studies; technical research services; research and development of new products for third parties; industrial design services; design, development, installation and maintenance of software; design and development of electric and electronic apparatus and equipment; design, development, installation and advisory services with respect to apparatus for recording, transmission and reproduction of sound, loudspeaker cabinets and component parts thereof, sound amplifiers and component parts thereof, audio receivers, headsets, wireless transmitters and receivers, high fidelity audio apparatus, stands adapted for loudspeakers, apparatus for reducing noise in audio recording systems, portable sound reproduction apparatus, remote control apparatus, loudspeakers, high fidelity audio apparatus land, air or water locomotion apparatus; planning and design of installations for regulation and distribution of sound signals.

Goods & Services

Sound recording, transmission and reproduction apparatus; loudspeaker cabinets and their component parts; sound amplifiers and component parts thereof; audio receivers; headsets; wireless transmitters and receivers; high-fidelity surround sound systems; holders specifically adapted for loudspeakers; noise reduction apparatus in audio recording systems, namely, electronic circuits and recorded software for reducing noise; portable sound reproduction apparatus; remote control apparatus for sound recording, transmission and reproduction apparatus; loudspeakers; high-fidelity surround sound systems for land, air or water locomotion apparatus Construction services, namely, assembling loudspeakers, loudspeaker cabinets and high-fidelity surround sound systems specifically adapted for land, air or water vehicles; services for installation, servicing in the nature of maintenance, repair, maintenance, modernization in the nature of repair and troubleshooting in the nature of repair of electric and electronic apparatus and equipment, apparatus for recording, transmission and reproduction of sound, loudspeaker cabinets and component parts, sound amplifiers and component parts, audio receivers, headsets, wireless transmitters and receivers, high fidelity audio apparatus, stands adapted for loudspeakers, apparatus for reducing noise in audio recording systems, portable sound reproduction apparatus, remote control apparatus, loudspeakers, high fidelity audio apparatus land, air or water locomotion apparatus; information and advisory services with respect to installation, servicing in the nature of maintenance, repair, maintenance, modernization in the nature of repair and troubleshooting in the nature of repair of electric and electronic apparatus and equipment, apparatus for recording, transmission and reproduction of sound, loudspeaker cabinets and component parts, sound amplifiers and component parts, audio receivers, headsets, wireless transmitters and receivers, high fidelity audio apparatus, stands adapted for loudspeakers, apparatus for reducing noise in audio recording systems, portable sound reproduction apparatus, remote control apparatus, loudspeakers, high fidelity audio apparatus land, air or water locomotion apparatus Scientific and technological services being research and design services in the field of sound quality and reproduction; conducting of technical, scientific feasibility project studies; technical research services in the field of sound quality and reproduction; research and development of new products for third parties; industrial design services; design, development, installation and maintenance of software; design and development of electric and electronic apparatus and equipment; design, development, and advisory services with respect to apparatus for recording, transmission and reproduction of sound, loudspeaker cabinets and component parts thereof, sound amplifiers and component parts thereof, audio receivers, headsets, wireless transmitters and receivers, high fidelity audio apparatus, stands adapted for loudspeakers, apparatus for reducing noise in audio recording systems, portable sound reproduction apparatus, remote control apparatus, loudspeakers, high fidelity audio apparatus land, air or water locomotion apparatus; planning and design of installations for regulation and distribution of sound signals

Goods & Services

(1) Appareils pour l'enregistrement, la transmission et la reproduction du son; enceintes et leurs parties constitutives; amplificateurs de sons et leurs parties constitutives; récepteurs audio; casques; émetteurs et récepteurs sans fil; appareils audio haute-fidélité; supports adaptés pour haut-parleurs; appareils de réduction du bruit dans les systèmes d'enregistrement audio; appareils portatifs pour la reproduction du son; appareil de télécommande; haut-parleurs; appareils audio haute-fidélité pour les appareils de locomotion par terre, par air ou par eau. (1) Services de construction; services d'installation, d'entretien, de réparation, de maintenance, de modernisation et de dépannage d'appareils et d'équipements électriques et électroniques, d'appareils pour l'enregistrement, la transmission et la reproduction du son, d'enceintes et parties constitutives, d'amplificateurs de sons et parties constitutives, de récepteurs audio, de casques, d'émetteurs et de récepteurs sans fil, d'appareils audio haute-fidélité, de supports adaptés pour haut-parleurs, d'appareils de réduction du bruit dans les systèmes d'enregistrement audio, d'appareils portatifs pour la reproduction du son, d'appareil de télécommande, de haut-parleurs, d'appareils audio haute-fidélité pour les appareils de locomotion par terre, par air ou par eau; services d'information et de conseils en matière d'installation, d'entretien, de réparation, de maintenance, de modernisation et de dépannage d'appareils et d'équipements électriques et électroniques, d'appareils pour l'enregistrement, la transmission et la reproduction du son, d'enceintes et parties constitutives, d'amplificateurs de sons et parties constitutives, de récepteurs audio, de casques, d'émetteurs et de récepteurs sans fil, d'appareils audio haute-fidélité, de supports adaptés pour haut-parleurs, d'appareils de réduction du bruit dans les systèmes d'enregistrement audio, d'appareils portatifs pour la reproduction du son, d'appareil de télécommande, de haut-parleurs, d'appareils audio haute-fidélité pour les appareils de locomotion par terre, par air ou par eau. (2) Services scientifiques et technologiques ainsi que services de recherches et de conception y relatifs; conduite d'études de projets techniques; services de recherche technique; recherche et développement de nouveaux produits pour des tiers; services de dessin industriel; services de conception, de développement, d'installation et de maintenance de logiciels; services de conception et de développement d'appareils et d'équipements électriques et électroniques; services de conception, de développement, d'installation et de conseils en matière d'appareils pour l'enregistrement, la transmission et la reproduction du son, d'enceintes et leurs parties constitutives, d'amplificateurs de sons et leurs parties constitutives, de récepteurs audio, de casques, d'émetteurs et de récepteurs sans fil, d'appareils audio haute-fidélité, de supports adaptés pour haut-parleurs, d'appareils de réduction du bruit dans les systèmes d'enregistrement audio, d'appareils portatifs pour la reproduction du son, d'appareil de télécommande, de haut-parleurs, d'appareils audio haute-fidélité pour les appareils de locomotion par terre, par air ou par eau; planification et conception d'installations pour le réglage et la distribution de signaux sonores.

Abstract

The invention relates to an enclosure for diffusing sound by reverberation (10) comprising: - a loudspeaker (11) comprising a fixed frame (12), a cylindrical support (13) and a membrane (14) connected to an upper bearing surface (16) of the frame (12); and - a wave guide (20) mounted on the upper bearing surface (16), the wave guide being substantially in the form of a truncated pyramid with a long wall (21) forming a front face (Fa), a short wall (22) and lateral uprights (23); the wave guide (20) comprising at least one acoustic wall (25) fastened to the lateral uprights (23), the acoustic wall (25) extending tangentially relative to the generatrix line (Dg) of the cylindrical support (13) closest to the front face (Fa).

IPC Classes  ?

• H04R 1/34 - Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
• G10K 11/28 - Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors

Goods & Services

(1) Enceintes acoustiques, hauts-parleurs; appareils d'enregistrement et de reproduction des sons, nommément, amplificateurs audio, amplificateurs de son, lecteurs de musique numérique, stations d'accueil pour lecteurs de musique numérique, casques d'écoute, casque d'écoute sans fil; magnétoscopes, magnétophones; systèmes de son haute-fidélité.

Abstract

A circular acoustic membrane having an upper surface and an opposite lower surface, said membrane being intended to be coupled, at the lower surface thereof, to a mobile winding via a support. The membrane has an annular fold concentrically delimiting, in the membrane, a circular central portion and an annular peripheral portion. In addition, the central portion has a concavity turned towards the upper surface and the internal edge of the fold is carried by the lower surface and comprises an attachment surface intended for the coupling of said support of the coil.

IPC Classes  ?

• H04R 9/06 - Loudspeakers
• H04R 7/14 - Non-planar diaphragms or cones corrugated, pleated, or ribbed
• H04R 9/04 - Construction, mounting, or centering of coil

Abstract

The invention relates to a broadband electrodynamic transducer for headphones, said transducer comprising: —a magnetic motor designed to generate a magnetic field; —a coil that is disposed in the air gap of the magnetic motor and can move translationally under the effect of the magnetic field; and —a membrane that is connected to the coil in such a way as to convert the translational movement of the coil into an acoustic wave; —the transducer comprising a self-supporting coil that is glued to the membrane, the membrane having a Young's modulus of more than 40 GPa.

IPC Classes  ?

• H04R 9/04 - Construction, mounting, or centering of coil
• H04R 1/10 - EarpiecesAttachments therefor
• H04R 7/12 - Non-planar diaphragms or cones
• H04R 5/033 - Headphones for stereophonic communication
• H04R 7/20 - Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Goods & Services

Sound recording, transmission and reproduction apparatus; speakers and component parts; sound amplifiers and component parts; audio receivers; headsets; wireless transmitters and receivers; high-fidelity audio apparatus; holders adapted for loudspeakers; noise reduction apparatus in audio recording systems; portable apparatus for sound reproduction; remote control apparatus.

Abstract

The invention relates to an acoustic impedance matching device arranged so as to be mounted behind a loudspeaker. Said device comprises a chamber at least partially filled with an absorbent material. Said device is characterized in that the cross-section of the chamber increases with the distance from the loudspeaker, and the density of the absorbent material increases with the distance from the loudspeaker.

IPC Classes  ?

• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
• H04R 1/30 - Combinations of transducers with horns, e.g. with mechanical matching means
• G10K 11/00 - Methods or devices for transmitting, conducting or directing sound in generalMethods or devices for protecting against, or for damping, noise or other acoustic waves in general

Abstract

The invention relates to a suspension device for a loudspeaker, comprising an annular outer edge that is able to fasten the suspension device to a frame, an annular inner edge that is able to fasten the suspension device to a membrane, a suspension hoop that extends annularly between the edges, said suspension hoop being able to absorb movement stresses produced at the inner edge by means of a deformation that thus forms a resonance mode, the suspension hoop comprising at least one annular protuberance that is positioned so as to minimize the at least one resonance mode of the suspension hoop, the mass of the at least one annular protuberance being between 150% and 400% the mass of a part of the suspension hoop on which the at least one annular protuberance is positioned.

IPC Classes  ?

• H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery
• H04R 7/26 - Damping by means acting directly on free portion of diaphragm or cone
• H04R 31/00 - Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor

Goods & Services

Sound recording, transmission and reproduction apparatus; audio speakers and component parts therefor; sound amplifiers and component parts therefor; audio receivers; headsets for use with computers, mobile phones, tablet computers, portable media players; wireless transmitters and receivers; high-fidelity surround sound systems; holders adapted for loudspeakers; noise reduction apparatus in audio recording systems, namely, electronic circuits and software for reducing noise; portable apparatus for sound reproduction; remote control apparatus for sound recording, transmission and reproduction apparatus

Abstract

The invention relates to a broadband electrodynamic transducer (10) for headphones, said transducer (10) comprising: - a magnetic motor (11) designed to generate a magnetic field; - a coil (12) that is disposed in the air gap (13) of the magnetic motor (11) and can move translationally under the effect of the magnetic field; and - a membrane (14) that is connected to the coil (12) in such a way as to convert the translational movement of the coil (12) into an acoustic wave; - the transducer (10) comprising a self-supporting coil (12) that is glued to the membrane (14), the membrane (14) having a Young's modulus of more than 40 GPa.

IPC Classes  ?

• H04R 7/12 - Non-planar diaphragms or cones
• H04R 9/04 - Construction, mounting, or centering of coil
• H04R 5/033 - Headphones for stereophonic communication
• H04R 7/20 - Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Goods & Services

Software; interfaces (software); apparatus for recording, transmission, reproduction or processing of sound or images; loudspeaker cabinets; amplifiers, loudspeakers, radios, mixing decks, sound processors and converters of sound data, electroacoustic apparatus, microphones, home cinemas, car radios; telecommunication apparatus, magnetic data carriers, acoustic or optical discs; CD drives, DVD drives, high-fidelity sound systems, televisions, video projectors; connection stations for digital players; audio and video equipment (apparatus), apparatus, components and accessories (namely microprocessors and electronic power supply) used for the production, processing, measuring, analyzing, recording, amplification, improvement, production, reproduction, transmission, storage, checking, testing, receiving and playing of audio signals, files and sounds and visual signals, files and images; sound cards; motherboard; apparatus and software for the improvement of analog and digital sound for the processing, recording, reproduction, streaming, transmission and reception of electronic or digital signals; computer programs, software, computer hardware and computer components and other digital devices used for the creation, processing, measuring, analysis, recording, amplification, improvement, reproduction, transmission, control, testing, reception and playing of signals, audio and sound files, and signals, visual files and images; computer programs and software for encoding and decoding voice and audio signals; computer hardware and software for the processing, recording, reproduction, distribution, streaming, transmission and reception of electronic or digital signals; video processors and sound processors; equipment (apparatus) for alignment and testing for audio and video equipment for the processing, recording, reproduction, diffusion, streaming, transmission and reception of electronic or digital signals; digital signal processing chips; printed circuit boards; graphics cards; graphic processors; magnetic, optical and digital recording media.

Abstract

A circular acoustic membrane (1) having an upper surface (11) and an opposite lower surface (10), said membrane (1) being intended to be coupled at the lower surface (10) thereof to a mobile winding (4) via a support (3). The membrane (1) has an annular fold (12) concentrically delimiting, in the membrane (1), a circular central portion (13) and an annular peripheral portion (14). In addition, the central portion (13) has a concavity turned toward the upper surface and the internal edge (120) of the fold (12) is carried by the lower surface (10) and comprises an attachment surface intended for the coupling of said support (3) of the coil.

IPC Classes  ?

• H04R 7/14 - Non-planar diaphragms or cones corrugated, pleated, or ribbed

Abstract

The invention relates to a suspension device for a loudspeaker, comprising an annular outer edge (12) that is able to fasten the suspension device to a frame (13), an annular inner edge (14) that is able to fasten the suspension device to a membrane (15), a suspension hoop (16) that extends annularly between the edges, said suspension hoop (16) being able to absorb movement stresses produced at the inner edge (14) by means of a deformation that thus forms a resonance mode, the suspension hoop (16) comprising at least one annular protuberance (20) that is positioned so as to minimize the at least one resonance mode of the suspension hoop (16), the mass of the at least one annular protuberance (20) being between 150% and 400% the mass of a part of the suspension hoop (16) on which the at least one annular protuberance (20) is positioned.

IPC Classes  ?

• H04R 7/18 - Mounting or tensioning of diaphragms or cones at the periphery

Abstract

The invention relates to an acoustic impedance matching device (10) arranged so as to be mounted behind a loudspeaker (1). Said device comprises a chamber (11) at least partially filled with an absorbent material (14). Said device is characterized in that the cross-section of the chamber (11) increases with the distance from the loudspeaker (1), and the density of the absorbent material (14) increases with the distance from the loudspeaker (1).

IPC Classes  ?

• G10K 11/16 - Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
• H04R 1/28 - Transducer mountings or enclosures designed for specific frequency responseTransducer enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
• G10K 11/00 - Methods or devices for transmitting, conducting or directing sound in generalMethods or devices for protecting against, or for damping, noise or other acoustic waves in general

Abstract

The invention relates to a loudspeaker membrane having a sandwich structure, having a central web separating two layers of material based on high-rigidity threads impregnated with a polymer resin, characterized in that the central web is formed from a layer of material based on oriented natural fibers that are impregnated with a polymer resin.

IPC Classes  ?

• H04R 7/10 - Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact
• G10K 13/00 - Cones, diaphragms, or the like, for emitting or receiving sound in general
• B29C 70/40 - Shaping or impregnating by compression
• H04R 7/12 - Non-planar diaphragms or cones
• B29L 31/34 - Electrical apparatus, e.g. sparking plugs or parts thereof

Goods & Services

Cabinets for loudspeakers, loudspeakers, sound recording and reproduction apparatus, sound recording media, video recorders, tape recorders, high-fidelity sound systems.

Abstract

The invention relates to a loudspeaker membrane having a sandwich structure, having a central web (6) separating two layers (2, 10) of material based on high-rigidity threads impregnated with a polymer resin, characterized in that the central web (6) is formed from a layer of material based on oriented natural fibres (7) that are impregnated with a polymer resin.

IPC Classes  ?

• H04R 7/12 - Non-planar diaphragms or cones

Goods & Services

Loudspeakers and their component parts; loudspeaker cabinets and their component parts; set of loudspeakers; audio amplifiers; sound recording, transmission and reproduction apparatus; loudspeaker diaphragms.

Abstract

The invention relates to a speaker enclosure comprising at least two channels, wherein a first and second channel are respectively dedicated to separate and adjacent first and second frequency bands, each of said channels including a filtering stage supplied by the control signal and a speaker unit, wherein said speaker enclosure is characterized in that said channels also include means for simultaneously: disconnecting the first channel from the control signal; and modifying the filtering stage of the second channel so as to modify the frequency response thereof.

IPC Classes  ?

• H03G 3/00 - Gain control in amplifiers or frequency changers
• H04R 3/14 - Cross-over networks
• H04R 1/26 - Spatial arrangement of separate transducers responsive to two or more frequency ranges

Abstract

The invention relates to an acoustic loudspeaker which includes a magnetic field source. A mobile apparatus includes a diaphragm and a first winding capable of allowing passage of an electrical current representing the sound signal to be generated and of interacting with the magnetic field. The acoustic loudspeaker includes a second winding, both terminals of which are connected by a resistive component. Both terminals of the second winding are electrically isolated from the terminals of the first winding.

IPC Classes  ?

• H04R 9/04 - Construction, mounting, or centering of coil
• H04R 9/06 - Loudspeakers
• H04R 3/00 - Circuits for transducers

Abstract

Acoustic loudspeaker comprising: a movable membrane; a source of constant magnetic field, a coil mechanically secured to said membrane and interacting with the magnetic field so as to displace the membrane, when it is traversed by an alternating current, characterized in that the membrane carries the coil at its periphery, and in that the magnetic field source is formed by a set of at least one magnetized element disposed at the periphery of said membrane, around the coil, the magnetic field generated by said at least one magnetized element being in a plane parallel to the membrane.

IPC Classes  ?

• H04R 9/06 - Loudspeakers
• H04R 9/02 - Transducers of moving-coil, moving-strip, or moving-wire type Details
• H04R 7/04 - Plane diaphragms
• H04R 7/12 - Non-planar diaphragms or cones
• H04R 7/16 - Mounting or tensioning of diaphragms or cones
• H04R 9/04 - Construction, mounting, or centering of coil

Abstract

The invention relates to a speaker enclosure (1) comprising at least two channels (2, 3, 4), wherein a first (2) and second (3) channel are respectively dedicated to separate and adjacent first and second frequency bands, each of said channels (2, 3) including a filtering stage supplied by the control signal (6) and a speaker unit (20, 30, 40), wherein said speaker enclosure is characterized in that said channels also include means (10) for simultaneously: disconnecting the first channel (2) from the control signal (6); and modifying the filtering stage (34, 37) of the second channel so as to modify the frequency response thereof.

IPC Classes  ?

• H04R 3/14 - Cross-over networks

Abstract

The invention relates to an acoustic loudspeaker (1) comprising: a magnetic field source (6); a mobile apparatus including a diaphragm (2) and a winding (3) capable of allowing passage of an electrical current representing the sound signal to be generated and of interacting with said magnetic. Said acoustic loudspeaker is characterized in that the mobile apparatus comprises a second winding (20), both terminals of which are connected by an essentially resistive component (21, 22, 23).

IPC Classes  ?

• H04R 3/00 - Circuits for transducers
• H04R 9/06 - Loudspeakers

Abstract

Acoustic loudspeaker (1) comprising: a movable membrane (2); a source of constant magnetic field (4), a coil mechanically secured to said membrane (2) and interacting with the magnetic field so as to displace the membrane (2), when it is traversed by an alternating current, characterized in that the membrane (2) carries the coil (3) at its periphery, and in that the magnetic field source (1) is formed by a set of at least one magnetized element (6) disposed at the periphery of said membrane (2), around the coil (3), the magnetic field generated by said at least one magnetized element (6) being in a plane parallel to the membrane (2).

IPC Classes  ?

• H04R 7/04 - Plane diaphragms
• H04R 7/12 - Non-planar diaphragms or cones
• H04R 7/16 - Mounting or tensioning of diaphragms or cones
• H04R 9/04 - Construction, mounting, or centering of coil

Goods & Services

Cabinets for loudspeakers, loudspeakers; apparatus for recording, transmitting and reproducing sound and images; sound recording carriers; audio tape recorders; video recorders; high-fidelity sound systems; frequency distribution filters; associated or auxiliary hi-fi accessories including, loudspeaker enclosure components, loudspeaker enclosure cabinets, blast filters, fabric holders, terminal strips, active or passive frequency distribution filters, sandwich membranes, composite membranes, synthetic membranes, voice coils, magnetic circuits, multiferrite magnets, basket assemblies, braids, cables, magnets, particularly for vehicles; amplifiers.

Goods & Services

Cabinets for loudspeakers, loudspeakers; apparatus for recording, transmitting and reproducing sound [ and images; sound recording carriers, namely, blank discs, blank audio tapes; blank video tapes, MP3 players, CD-ROM disc, DVD and magneto-optical discs; audio tape recorders; video recorders;] high-fidelity sound systems comprising amplifiers, loudspeakers and components therefor, high-fidelity surround sound system; audio electronic components, namely, speaker systems, audio speaker; surround sound component parts, namely, frequency distribution filters, namely, high-pass filters, low-pass filters, bandpass filters, band-reject filters or all-pass filter; associated or auxiliary hi-fi accessories, namely, amplificator, bass reflex tubes, amplifiers for active loud-speakers, high-fidelity amplifiers, input amplifiers, and output amplifiers, loudspeaker enclosure components, namely, woofers, tweeters, crossovers, subwoofers, car audio speaker, loud-speaker chassis, speaker pedestals, electronic level controls for loud-speakers, loud-speaker transformers, foam front panels for loud-speakers and damping material for loud-speaker boxes; loudspeaker enclosure cabinets, Electronic filters for loudspeakers, [ sandwich membranes, composite membranes, synthetic membranes in the nature of acoustic membrane, ] component parts for loudspeakers, namely, connecting clamps for loud-speakers and copper coils for frequency cross-over-networks, magnetic circuits for low and heavy current, multiferrite magnets, cables in the nature of electric cable; decorative magnets, amplifiers

Goods & Services

Loud speakers, loud speaker system, audio amplifiers, car radios, apparatus for recording, transmitting and reproducing sound or images especially for vehicles.

Goods & Services

Cabinets for loudspeakers, loudspeakers; appliances for recording, transmitting and reproducing sound and images; sound recording carriers; tape recorders; video recorders; high-fidelity sound systems; cross-over filters for frequencies; associated or auxiliary hi-fi accessories including speaker enclosures, loudspeaker housings, grills, fabric supports, terminal blocks, active or passive frequency distributing filters, sandwich membranes, composite membranes, synthetic membranes, voice coils, magnetic circuits, multiferrite magnets, speaker frames, braids, cables, magnets, including for vehicles; amplifiers.

Goods & Services

speakers, speaker systems consisting of car audio speakers, woofers, midranges, tweeters and crossovers; devices for the transmission of sound and images, namely, main speakers, central channel speakers, surround speakers and subwoofer speakers; loud speakers; Hi-Fi systems, namely, stereos and speakers; [ frequency distributor filters; ] related or auxiliary accessories for Hi-Fis, specifically speakers systems consisting of car audio speakers, woofers, midranges, tweeters and crossovers, [ speaker system cabinets, ] [ fabric holder screens, terminal blocks, active or passive frequency distributor filters, sandwich diaphragms, composite diaphragms, synthetic diaphragms, movable reels, magnetic circuits, speaker framers, straps, multi-magnets speakers, cables, magnets, ready-to-assemble loudspeaker units and filters, with all these products being specifically available for vehicles ]