EP3063950B1 - Système de sonorisation à directivite réglable améliorée - Google Patents

Système de sonorisation à directivite réglable améliorée Download PDF

Info

Publication number
EP3063950B1
EP3063950B1 EP13805441.6A EP13805441A EP3063950B1 EP 3063950 B1 EP3063950 B1 EP 3063950B1 EP 13805441 A EP13805441 A EP 13805441A EP 3063950 B1 EP3063950 B1 EP 3063950B1
Authority
EP
European Patent Office
Prior art keywords
sound
frequency transducer
frequency
mid
transducer
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP13805441.6A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3063950A1 (fr
Inventor
Christophe Combet
Christian Heil
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
L Acoustics SAS
Original Assignee
L Acoustics SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by L Acoustics SAS filed Critical L Acoustics SAS
Publication of EP3063950A1 publication Critical patent/EP3063950A1/fr
Application granted granted Critical
Publication of EP3063950B1 publication Critical patent/EP3063950B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/025—Arrangements for fixing loudspeaker transducers, e.g. in a box, furniture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/34—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
    • H04R1/345—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 for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/40—Details of arrangements for obtaining desired directional characteristic by combining a number of identical transducers covered by H04R1/40 but not provided for in any of its subgroups
    • H04R2201/403—Linear arrays of transducers

Definitions

  • the invention relates to the control of the directivity of electroacoustic sound sources, whether they are used in professional, institutional or domestic sound systems.
  • Electroacoustic sound sources are commonly referred to as “loudspeakers”, “speaker systems”, “source lines” or “loudspeakers or sound systems”.
  • the directivity generally expresses an angle corresponding to the angular sector for which the level of sound pressure or SPL for Sound Pressure Level in English is constant over a frequency range specified by the manufacturer.
  • SPL for Sound Pressure Level in English is constant over a frequency range specified by the manufacturer.
  • Such sound source has, for example, a horizontal directionality of 90 °, controlled from 1kHz to 10kHz.
  • controlled implies that the SPL is constant within +/- 3dB on a sector of 90 ° between 1khz and 10kHz, while the attenuation of the SPL outside this angular sector should be as high as possible, typically greater than 6dB.
  • the directivity of a sound source distinguishes two planes, the horizontal plane and the vertical plane, for which this characteristic generally has different values.
  • the art of controlling the directivity of sound sources goes back to the origin of the speakers.
  • the former is traditionally mechanical: it relies heavily on the use of sound horns, and / or the network arrangement of multiple transducers.
  • the "sound source” products belonging to this class in the professional sector or not, present for a given horizontal or vertical plane, a single directivity, fixed once and for all by the hardware configuration of the components of the acoustic enclosure.
  • the choice of transducers, their frequency of connection, the type of flag or waveguide mounted in front of the orifice of compression chamber motors or electrodynamic loudspeakers thus determines the directivity characteristics of the sound source over a spectral band. more or less extensive.
  • the second way of controlling directivity has emerged over the past decade, relying on the electronic recourse provided by the DSP components for Digital Signal Processor in English - or digital signal processor in French. Often identical transducers are associated according to a predefined physical arrangement. The transducers operate on a common frequency range chosen by the manufacturer. With the aid of the DSP component are applied to at least one of the transducers magnitude and phase parameters in other terms of filtering, gain, phase shift, delay for modifying and controlling the directivity of the set of speakers, considered as a complex sound source.
  • the advantage of this approach lies in its power to propose different directivities for the same physical configuration. It always involves a large number of transducers to obtain a high quality of control.
  • the device presented in the document EP 1 635 606 belongs to the first class of sound sources with mechanical action, with adjustable shutters acting mechanically and acoustically on the midrange and treble transducers.
  • the method uses different DSP parameters for different flap settings, for the sole purpose of linearizing the frequency response.
  • the connection frequency between mid and high-frequency transducers is fixed, therefore independent of the flap orientation.
  • the document US 2005/0207593 A1 presents a loudspeaker system including a waveguide and a signal processing provided to loudspeakers with overlapping frequency ranges to control the directivity of the loudspeaker system.
  • the object of the invention is to overcome the disadvantages of known loudspeaker systems, by proposing a system which has a particularly effective directivity and which is of a sufficiently simple construction.
  • a sound system comprising at least one acute sound transducer and at least one medium sound transducer, orientable flaps acting on a sound emission of the high-pitched sound transducer to produce a sound emission directivity of the acute sound transducer according to a selected angular sector, characterized in that it is configured so that the medium sound transducer and the acute sound transducer emit over a common frequency range and it comprises at least one control module of Digital signal - acting on a signal to the acute sound transducer and on a signal to the mid-range sound transducer so as to apply in the common frequency range at least one magnitude parameter on the acute sound transducer (1) and / or on the medium sound transducer as well as at least one phase parameter on the acute sound transducer and / or r the medium sound transducer so as to produce a sound emission directivity of the pair consisting of the acute sound transducer and the medium sound transducer according to the same angular sector selected as the directivity produced by the
  • the adjustable flaps and the control module of the DSP type are configured in such a way that they each generate a presence of the sound waves at a substantially constant sound level in said selected angular sector, the adjustable flaps and the control module of the following type.
  • DSPs are configured such that they attenuate the sound waves at any angle outside said selected angular sector at an attenuation greater than 6 dB from the highest sound level in said selected angular sector.
  • the sound system is configured so that the common frequency range is variable depending on the orientation of the adjustable flaps.
  • the sound system comprises at least two medium sound transducers and at least one acute acoustic transducer, the medium sound transducers being arranged on either side of the acute sound transducer.
  • the sound system comprises a housing surrounding at least partially one of the flaps, said at least one of the flaps having a surface oriented vis-à-vis a sound flow emitted by said acute sound transducer and a surface oriented away from the sound flow emitted by said acute sound transducer, the obstacle housing in front of the surface of the flap (6) oriented away from the sound flux emitted by the acute sound transducer so as to protect the surface against shock by a foreign object.
  • said at least one medium sound transducer comprises a movable membrane of substantially conical shape and the housing of said at least one flap is shaped to fit a portion of the substantially conical shape of the membrane.
  • the sound system is a portable sound system.
  • the sound system comprises at least two serious sound transducers and said at least two serious sound transducers are disposed on either side of an assembly constituted by said at least one acute sound transducer and said at least two sound transducers. medium.
  • the sound system comprises at least one waveguide which conveys sound waves emitted by the acute sound transducer.
  • the sound system comprises a slot through which sound waves produced by the acute sound transducer are emitted, said at least two medium sound transducers being disposed on either side of the slot.
  • the loudspeaker system shown on the figure 1 has a K arrangement of the mid and high transducers.
  • This speaker system seen from the front is symmetrical with respect to the vertical plane passing through the system in the middle.
  • compression chamber motors 1 mounted in line coupled to superimposed waveguides 2 having on the front face an outlet in the form of a vertical longitudinal slot 3.
  • medium transducers 4 located closer to the slot 3.
  • bass drivers 5 located near the mid section.
  • the acute transducers 1 emit high frequencies which are frequencies between about 1 kHz and about 10 kHz.
  • the midrange transducers emit medium frequencies which are frequencies between about 200Hz and about 1kHz.
  • the bass transducers emit bass frequencies that are frequencies below about 200Hz.
  • These walls 6 form here orientable flaps.
  • a mechanical adjustment of these pivotable flaps 6 is thus implemented at the output of the waveguide 2 itself connected to the orifice of the high-frequency transducer 1, which consists here of a compression chamber motor.
  • the assembly is positioned between two or more medium transducers 4 mounted in direct radiation on a fixed plane, so that the complete device has, from the front, a symmetry with respect to a vertical plane.
  • the flaps 6 located at the output of the waveguides 2 are here movable with a preselection of several orientations.
  • the flaps 6 are here imprisoned in two respective boxes 7.
  • Each of the boxes 7 extends around a space defined by the lower face of the flap 6 turned away from the acute sound flow.
  • the housings 7 thus protect the flaps 6 so that no external object can come into contact with the flap under it.
  • Each of the housings 7 also houses and protects a rotation and preselection system of the corresponding flap 6.
  • the housings 7 each have a portion overlapping a respective medium transducer. In this covering part, each housing 7 enters the conical space delimited by the movable membrane of the medium transducer 4 considered and matches the shape of the membrane. This covering part thus plays the role of a medium compression chamber.
  • the shutters 6 are here individually adjustable so that one can adopt with the present system an asymmetrical adjustment of the direction of the sound flow, either to the right or to the left depending on whether one or other of the flaps is arranged in the most raised position.
  • the rotation of the flaps 6 makes it possible to modify the directivity of the acute over the operating range of the acute transducers, typically over the frequency range greater than 800 Hz, provided however that the size of the flaps 6, in open or closed mode, sufficient to ensure effective control. Indeed, it is worth noting the loss directional control as the flaps are narrowed in a narrow angular sector because of too small physical dimensions at the exit of the flaps.
  • the mid and high-frequency transducers 1 operate on a common frequency range and a DSP component sets the magnitude and phase parameters of the acute 1 and medium 4 transducers in the common frequency range so that the Directivity obtained by such parameters is the same as the directivity produced by the adjustment of flaps 6 in the high frequencies.
  • a DSP component sets the magnitude and phase parameters of the acute 1 and medium 4 transducers in the common frequency range so that the Directivity obtained by such parameters is the same as the directivity produced by the adjustment of flaps 6 in the high frequencies.
  • at least the three source points are combined electronically by means of DSP, namely the acute transducer 1 positioned in the center and the two identical medium transducers 4 situated on either side, so that, in a manner known per se, acoustic summation is known. resulting result in the desired directivity.
  • the present processing consists of other terms to adjust the parameters of filtering, gain, phase and delay, a delay equivalent to a frequency-dependent phase shift and a filtering equivalent to a frequency-dependent magnitude as is the case in the present embodiment.
  • This technique can be generalized to several additional source points that would be positioned for example on either side of the device described above, and this, step by step, to gain control of even lower frequencies, and correlate it to other sections .
  • a variable directivity loudspeaker system is obtained not only by the variability of the flap orientation, but also by the coordinated variability of the processing applied by the DSP component.
  • the acute transducers 1 are here fed by a DSP component included in a control module which implements, in addition to the digital signal processing, also an amplification.
  • the high-pass transition filter between medium and high frequencies is set to a value Fc.
  • the gain and delay of the acute section are adjusted relative to the mid-section so that the acoustic summation is the most favorable over the widest angular sector, 110 ° in the present example.
  • a gain attenuation is implemented over a frequency range [Fc, Frc] with respect to the nominal gain over the frequency range below Frc, a value of less than 6 dB depending on the flap orientation, Frc variant between Fc and Fc x 2.5 depending on the orientation of the shutters 6.
  • the medium transducers 4 are also powered by a control module producing the digital signal processing and amplification, these modules being here one in number for each type of transducer but which can alternatively be replaced by a plurality of control modules by example each associated with a transducer respective.
  • the control module is here disposed externally to the loudspeaker system shown in the figures, but alternatively it can be integrated in such a loudspeaker system.
  • the transition low-pass filter between medium and high frequencies is fixed at Fc
  • a crossover low-pass filter between the frequencies of the medium transducer 4 and the acute transducer 1 being fixed at the value Frc
  • Frc Frc varying between Fc and Fc x 2.5 according to the orientation of flaps 6.
  • a gain attenuation in the range [Fc, Frc] with respect to the nominal gain over the frequency range below Frc is set here implemented with an attenuation value greater than 6 dB.
  • the present speaker system is a portable one or two person system using handles at the ends of the present system.
  • the frequencies and attenuations given in the table according to which frequencies and attenuations are given as a function of the desired directivity are used, these frequencies and attenuations being able to vary as a function of the physical configuration of the transducers. values are further given here for a value of Fc equal to 1 kHz.
  • the device described combines a mechanical adjustment of the sound source by the use of the adjustable flaps 6 acting on the acute section, and a DSP component adjustment of the low-frequency transducers 5, medium 4 and treble 1, implementing a common frequency range at least two types of transducers, which common frequency range is here variable depending on the orientation of the flaps of the acute 6.
  • the mechanical and electronic parameters are adjusted to extend the directivity control obtained in the acute at medium frequencies reproduced by the medium transducers 4.
  • the relative magnitude and phase parameters of the transducers are changed by DSP component to obtain a match between the directivity of the treble and the medium. It is thus possible to adjust the directivity of a sound source containing such a device on an angular sector of range between 60 ° and 120 ° with good control from 300 Hz, up to frequencies exceeding 10 kHz.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
EP13805441.6A 2013-10-30 2013-10-30 Système de sonorisation à directivite réglable améliorée Active EP3063950B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/FR2013/052604 WO2015063377A1 (fr) 2013-10-30 2013-10-30 Systeme de sonorisation a directivite reglable ameliore

Publications (2)

Publication Number Publication Date
EP3063950A1 EP3063950A1 (fr) 2016-09-07
EP3063950B1 true EP3063950B1 (fr) 2017-08-16

Family

ID=49765543

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13805441.6A Active EP3063950B1 (fr) 2013-10-30 2013-10-30 Système de sonorisation à directivite réglable améliorée

Country Status (11)

Country Link
US (1) US9762996B2 (zh)
EP (1) EP3063950B1 (zh)
JP (1) JP6416922B2 (zh)
CN (1) CN105765996B (zh)
BR (1) BR112016009662B1 (zh)
CA (1) CA2928995C (zh)
DK (1) DK3063950T3 (zh)
ES (1) ES2642898T3 (zh)
PT (1) PT3063950T (zh)
RU (1) RU2638081C2 (zh)
WO (1) WO2015063377A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2778444C1 (ru) * 2021-07-16 2022-08-18 Евгений Богуславский Громкоговоритель

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101515618B1 (ko) * 2014-03-20 2015-04-28 김태형 래티스 타입 스피커, 및 이를 구비한 래티스 어레이 스피커 시스템
FR3084230B1 (fr) * 2018-07-19 2021-01-01 L Acoustics Dispositif de diffusion sonore a courbure non constante figee
FR3115504B1 (fr) * 2020-10-22 2022-10-14 Focal Jmlab Appui-tete sonorise et siege associe

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4625829A (en) * 1984-03-26 1986-12-02 Sirois Ronald A Speaker grill
JPH04167697A (ja) * 1990-10-26 1992-06-15 Mitsubishi Electric Corp スピーカーシステム
JP3511338B2 (ja) 1995-05-15 2004-03-29 松下電器産業株式会社 音響拡声装置
US5809153A (en) * 1996-12-04 1998-09-15 Bose Corporation Electroacoustical transducing
US6394223B1 (en) * 1999-03-12 2002-05-28 Clair Brothers Audio Enterprises, Inc. Loudspeaker with differential energy distribution in vertical and horizontal planes
US6513622B1 (en) * 1999-11-02 2003-02-04 Harman International Industries, Incorporated Full-range loudspeaker system for cinema screen
CA2509850C (en) 2002-01-29 2009-11-17 Poul Praestgaard Modular loudspeaker
US7676047B2 (en) * 2002-12-03 2010-03-09 Bose Corporation Electroacoustical transducing with low frequency augmenting devices
US7519188B2 (en) * 2003-09-18 2009-04-14 Bose Corporation Electroacoustical transducing
JP4254502B2 (ja) * 2003-11-21 2009-04-15 ヤマハ株式会社 アレースピーカ装置
FR2875367B1 (fr) 2004-09-13 2006-12-15 Acoustics Sa L Systeme de sonorisation directivite reglable
ITBS20050006A1 (it) 2005-01-28 2006-07-29 Outline Di Noselli G & C S N C Elemento diffusore del suono per formare sistemi di diffusori in linea verticale a direttivita' regolabile sia orizzontalmente sia verticalmente
US7912234B1 (en) * 2005-02-15 2011-03-22 Graber Curtis E Acoustic projector for propagating a low dispersion sound field
US8121336B2 (en) * 2007-04-05 2012-02-21 Harman International Industries, Incorporated Directional loudspeaker to reduce direct sound
JP5023978B2 (ja) 2007-11-09 2012-09-12 ヤマハ株式会社 スピーカシステム
US20100272295A1 (en) * 2007-12-18 2010-10-28 Eiji Nakatani Speaker device having directivity adjustment panel
WO2011060535A1 (en) * 2009-11-19 2011-05-26 Adamson Systems Engineering Inc. Method and system for determining relative positions of multiple loudspeakers in a space
CN201585117U (zh) * 2009-11-30 2010-09-15 广州市迪士普音响科技有限公司 发声方向三维可调的扬声器系统
EP2548378A1 (en) * 2010-03-18 2013-01-23 Koninklijke Philips Electronics N.V. Speaker system and method of operation therefor
EP3041265B1 (en) * 2014-09-08 2019-12-18 Adamson Systems Engineering Inc. Loudspeaker with improved directional behavior and reduction of acoustical interference
EP3284268B1 (en) * 2015-04-14 2021-11-10 Meyer Sound Laboratories, Incorporated Arrayable loudspeaker with constant wide beamwidth

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2778444C1 (ru) * 2021-07-16 2022-08-18 Евгений Богуславский Громкоговоритель

Also Published As

Publication number Publication date
WO2015063377A1 (fr) 2015-05-07
CN105765996B (zh) 2019-05-28
BR112016009662B1 (pt) 2021-01-12
RU2016121015A (ru) 2017-12-05
US20160277830A1 (en) 2016-09-22
DK3063950T3 (en) 2017-10-16
JP2016535966A (ja) 2016-11-17
RU2638081C2 (ru) 2017-12-11
CN105765996A (zh) 2016-07-13
PT3063950T (pt) 2017-10-19
ES2642898T3 (es) 2017-11-20
JP6416922B2 (ja) 2018-10-31
EP3063950A1 (fr) 2016-09-07
CA2928995C (fr) 2021-02-16
US9762996B2 (en) 2017-09-12
CA2928995A1 (fr) 2015-05-07

Similar Documents

Publication Publication Date Title
US7519188B2 (en) Electroacoustical transducing
EP2597889B1 (fr) Casque audio a controle actif de bruit de type non-adaptatif
FR2911241A1 (fr) Systeme de haut-parleur avec rayonnement de son arriere reduit
EP1728409B1 (fr) Dispositif de sonorisation a contrôle de rayonnement géométrique et électronique
FR2919454A1 (fr) Systeme de reproduction sonore a enceinte a events.
EP3140997B1 (fr) Dispositif de transmission de sons pour ecouteur intra-auriculaire et ecouteur intra-auriculaire
EP3063950B1 (fr) Système de sonorisation à directivite réglable améliorée
EP2709380B1 (fr) Enceinte acoustique active monobloc configurable pour être utilisée isolément ou par paire, avec renforcement de l'image stéréo
WO2020079377A1 (fr) Enceinte acoustique et procédé de modulation pour une enceinte acoustique
WO1993026134A1 (fr) Dispositif de reproduction sonore stereophonique utilisant une pluralite de haut-parleurs dans chaque canal
FR2609853A1 (fr) Transducteur electroacoustique de puissance, a haute fidelite, a systeme de diffusion etage
EP4029288A1 (fr) Dispositif de diffusion sonore a directivite large bande controlee
EP4114031A1 (fr) Enceinte acoustique ultra-plate à vibrations réduites
WO2019020762A1 (fr) Dispositif de transmission du son pour ecouteur comportant un canal principal et un canal auxiliaire
WO2021214313A1 (fr) Enceinte acoustique directionnelle pour la communication confidentielle et attenuateur ultrasonore
BE859408A (fr) Systeme d'enceinte acoustique, equipee de plusieurs haut-parleurs dont les axes convergent en une source ponctuelle fictive
EP3596938A1 (fr) Dispositif monobloc d'enceinte acoustique amplifiée.
WO2019096790A1 (fr) Dispositif allonge de transmission du son pour ecouteur
FR2608343A1 (fr) Procede d'egalisation de la reponse amplitude/frequence d'un ensemble transducteur electro-acoustique, ensemble transducteur correspondant
FR2579052A1 (fr) Dispositif de diffusion sonore a haut-parleurs

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20160427

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20170530

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 920159

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170915

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 5

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602013025207

Country of ref document: DE

REG Reference to a national code

Ref country code: NL

Ref legal event code: FP

REG Reference to a national code

Ref country code: DK

Ref legal event code: T3

Effective date: 20171011

REG Reference to a national code

Ref country code: SE

Ref legal event code: TRGR

REG Reference to a national code

Ref country code: PT

Ref legal event code: SC4A

Ref document number: 3063950

Country of ref document: PT

Date of ref document: 20171019

Kind code of ref document: T

Free format text: AVAILABILITY OF NATIONAL TRANSLATION

Effective date: 20171006

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2642898

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20171120

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 920159

Country of ref document: AT

Kind code of ref document: T

Effective date: 20170816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171116

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171116

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171117

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20171216

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602013025207

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20180517

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171031

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171031

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171030

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20171031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20171030

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 6

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20131030

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20170816

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20201102

Year of fee payment: 8

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DK

Payment date: 20201020

Year of fee payment: 8

Ref country code: PT

Payment date: 20201021

Year of fee payment: 8

Ref country code: SE

Payment date: 20201022

Year of fee payment: 8

Ref country code: ES

Payment date: 20201117

Year of fee payment: 8

REG Reference to a national code

Ref country code: DK

Ref legal event code: EBP

Effective date: 20211031

REG Reference to a national code

Ref country code: SE

Ref legal event code: EUG

REG Reference to a national code

Ref country code: NL

Ref legal event code: MM

Effective date: 20211101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211031

Ref country code: PT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20220502

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211101

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211031

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20230217

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20211031

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230320

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231025

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20231031

Year of fee payment: 11

Ref country code: FR

Payment date: 20231023

Year of fee payment: 11

Ref country code: DE

Payment date: 20231018

Year of fee payment: 11