Patents Assigned to Devialet
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Publication number: 20170164126Abstract: The invention relates to a method implementing at least one loudspeaker comprising at least one module suitable for generating a value representative of an internal operation of the loudspeaker, and a memory unit for storing an alarm criterion relative to the generated value, and control software for controlling the loudspeaker. The method further comprising the steps of the module produces a value representative of the internal operation of the loudspeaker, the loudspeaker compares the generated value and the alarm criterion, and the loudspeaker emits a sound or visual signal if the result of the comparison indicates that the generated value fulfills the alarm criterion.Type: ApplicationFiled: April 16, 2015Publication date: June 8, 2017Applicant: DEVIALETInventors: Pierre-Emmanuel CALMEL, Charles COQUERET, Maxime LEBLANC
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Publication number: 20170139666Abstract: Devices connected to a remote unit, each device storing at least one identifier of the device, and at least one configuration parameter representative of a configuration of the device, and a control set adapted for remotely controlling the devices, the control set comprising an interface. The method comprises selecting, by a user, any of the configuration parameters by the interface, detecting, by the control set, that the configuration parameter is selected and providing an identification parameter of the device corresponding to the configuration parameter.Type: ApplicationFiled: April 16, 2015Publication date: May 18, 2017Applicant: DEVIALETInventors: Pierre-Emmanuel CALMEL, Charles COQUERET, Maxime LEBLANC
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Publication number: 20170085974Abstract: The invention relates to a support for an audio system, the audio system comprising a heat source, a discharge surface for the heat and means for conducting at least one portion of the heat produced by the heat source towards the discharge surface. The support further comprises a plate comprising at least one heat-conducting elastic member able to deform for fitting at least one portion of the discharge surface of the audio system, and a thermal dissipation radiator in thermal contact with the elastic member.Type: ApplicationFiled: December 16, 2014Publication date: March 23, 2017Applicant: DEVIALETInventors: Quentin SANNIÉ, Emmanuel NARDIN, Pierre-Emmanuel CALMEL, Nicolas REGENTÊTE, Julien BERGÈRE
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Publication number: 20160261954Abstract: A piece of sound reproduction equipment includes an input receiving an audio input signal to be reproduced; a loudspeaker with a resistance of less than 1?; a processing and amplification chain including: an amplifier able to energize the loudspeaker, a stage correcting the audio signal, positioned between the input and the amplifier, said correction stage is able to simulate virtual physical parameters of the loudspeaker by modifying the characteristics of the audio signal provided to the amplifier. The correction stage is able to modify the virtual physical parameters over time during operation of the sound reproduction system.Type: ApplicationFiled: September 26, 2014Publication date: September 8, 2016Applicant: DEVIALETInventors: Antoine PETROFF, Pierre-Emmanuel CALMEL, Jean-Loup AFRESNE
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Publication number: 20160142841Abstract: This electroacoustic conversion chain comprising at least one loudspeaker, this loudspeaker comprising means for generating a magnetic field in a magnetic circuit having an air gap and a membrane secured to turns of a conducting material which may move in this air gap, is characterized in that it comprises at least one control module comprising at least one input for conveying a signal to be broadcast and at least one output connected to a turn, the control module being able to apply to said or each output an excitation signal depending on the position of at least one turn relatively to the air gap.Type: ApplicationFiled: June 2, 2014Publication date: May 19, 2016Applicant: DEVIALETInventors: Antoine PETROFF, Pierre-Emmanuel CALMEL, Jean-Loup Nat AFRESNE
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Patent number: 9257949Abstract: The invention relates to a “push-pull” amplifier, comprising an input (12) and an output (14), which includes: a main amplification branch comprising two amplification transistors (18, 20) connected in opposite series between two supply voltages (V+, V?), the amplifier output (14) being connected between the two transistors (18, 20), and a control circuit (22, 24) for each amplification transistor (18, 20) connected to the input (12) to each receive as an input the signal to be amplified. The main amplification branch comprises, between each transistor (18, 20) and the output (14), a member having a nonlinear response (38, 40) and means (30, 32) for introducing at the input of the control circuit (22, 24) of each transistor (18, 20), a nonlinear compensating signal suitable for bringing about the circulation of a minimum current in the member having a nonlinear response (38, 40).Type: GrantFiled: March 16, 2010Date of Patent: February 9, 2016Assignee: DEVIALETInventors: Mathias Moronvalle, Pierre-Emmanuel Calmel
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Patent number: 9190928Abstract: The switched power supply (10) comprises: an input (16) for an AC input current (IPRI) under an input voltage (VPRI); an output (36) for a DC output current (Isec), and successively, from the input to the output, a system of controlled breaker switches (20); a transformer (21) whereof the primary (24) is linked at the output of the system of controlled breaker switches (20); a rectifying circuit (28) connected across the terminals of a secondary circuit (26) of the transformer; and a storage capacitor (32) linked in parallel across the output terminals of the rectifier circuit (28) with interposition of a coil (34), the output (36) being formed across the terminals of the storage capacitor (32).Type: GrantFiled: March 16, 2010Date of Patent: November 17, 2015Assignee: DEVIALETInventors: Pierre-Emmanuel Calmel, Mathias Moronvalle
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Patent number: 8901998Abstract: A current-voltage converter with a current reflector, for which the input current includes a fixed component and a variable component, includes an input for the current to be converted, an output for the converted voltage, two constant current sources each connected between the output and a respective reference voltage, at least one MOSFET transistor mounted in series with each constant current source, and a resistor for converting the current into a voltage, arranged between the output and ground. The gate of each MOSFET transistor is connected to one of the reference voltages. The input for the current to be converted is connected to the output through one of the MOSFET transistors. The converted further includes, for each MOSFET transistor, means for re-injecting into at least one of the current sources, a current equal to the current absorbed in the gates of the MOSFET transistors.Type: GrantFiled: March 16, 2010Date of Patent: December 2, 2014Assignee: DevialetInventors: Mathias Moronvalle, Pierre-Emmanuel Calmel
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Publication number: 20140003619Abstract: The invention relates to an audio processing device (1) including: at least one connector (2, 7), suitable for receiving data defining an input sound signal; a processing module (5, 6) suitable for determining at least one signal intended for a loudspeaker (12, 13) as a function of said defining data, a communication module (8, 9) for communicating with at least one other audio processing device, according to claim 1; said device being characterized in that it furthermore includes a detection module (4) suitable for detecting the proximity of another device according to claim 1 and in that the processing module is suitable for determining said signal intended for the loudspeaker as a function furthermore of a number of other detected device(s).Type: ApplicationFiled: January 19, 2012Publication date: January 2, 2014Applicant: DEVIALETInventors: Antoine Sannie, Manuel De La Fuente, Pierre-Emmanuel Calmel
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Publication number: 20130063211Abstract: The invention relates to a “push-pull” amplifier, comprising an input (12) and an output (14), which includes: a main amplification branch comprising two amplification transistors (18, 20) connected in opposite series between two supply voltages (V+, V?), the amplifier output (14) being connected between the two transistors (18, 20), and a control circuit (22, 24) for each amplification transistor (18, 20) connected to the input (12) to each receive as an input the signal to be amplified. The main amplification branch comprises, between each transistor (18, 20) and the output (14), a member having a nonlinear response (38, 40) and means (30, 32) for introducing at the input of the control circuit (22, 24) of each transistor (18, 20), a nonlinear compensating signal suitable for bringing about the circulation of a minimum current in the member having a nonlinear response (38, 40).Type: ApplicationFiled: March 16, 2010Publication date: March 14, 2013Applicant: DEVIALETInventors: Mathias Moronvalle, Pierre-Emmanuel Calmel
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Patent number: 7545212Abstract: An amplifier includes an output for feeding a load, a voltage generator presenting very high linearity and very low output impedance, and a current source having its output connected to the output of the voltage generator at a coupling point connected to the output. The output of the voltage generator is connected directly to the coupling point without any resistive element being interposed between them. A control stage controls the current source from the current delivered by the voltage generator. The control stage for controlling the current source includes current measurement elements for measuring the current delivered by the voltage generator, and the elements are disposed solely upstream from the output for feeding the load.Type: GrantFiled: July 25, 2005Date of Patent: June 9, 2009Assignee: DevialetInventors: Pierre-Emmanuel Calmel, Fabrice Robert
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Patent number: D644209Type: GrantFiled: April 12, 2010Date of Patent: August 30, 2011Assignee: DevialetInventors: Emmanuel Nardin, Nicolas Regentete, Fabien Deboves, Axel Lehovetzki
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Patent number: D648313Type: GrantFiled: April 12, 2010Date of Patent: November 8, 2011Assignee: DevialetInventors: Emmanuel Nardin, Nicolas Regentete, Fabien Deboves, Axel Lehovetzki
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Patent number: D742352Type: GrantFiled: March 21, 2014Date of Patent: November 3, 2015Assignee: DEVIALETInventors: Emmanuel Nardin, Fabien Deboves, Francois Mestre, Sylvain Gerber, Gregory Cibert, Nicolas Regentete, Xavier Flavard
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Patent number: D743371Type: GrantFiled: April 25, 2014Date of Patent: November 17, 2015Assignee: DEVIALETInventors: Emmanuel Nardin, Fabien Deboves, François Mestre, Sylvain Gerber, Grégory Cibert, Nicolas Régentête
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Patent number: D748078Type: GrantFiled: April 25, 2014Date of Patent: January 26, 2016Assignee: DEVIALETInventors: Emmanuel Nardin, Fabien Deboves, François Mestre, Sylvain Gerber, Grégory Cibert, Nicolas Régentête
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Patent number: D752021Type: GrantFiled: April 25, 2014Date of Patent: March 22, 2016Assignee: DEVIALETInventors: Emmanuel Nardin, Fabien Deboves, François Mestre, Sylvain Gerber, Grégory Cibert, Nicolas Régentête
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Patent number: D752022Type: GrantFiled: April 25, 2014Date of Patent: March 22, 2016Assignee: DEVIALETInventors: Emmanuel Nardin, Fabien Deboves, François Mestre, Sylvain Gerber, Grégory Cibert, Nicolas Régentête