EP2963944B1 - Akustischer Einsatz für ein Lautsprecherbassreflexsystem - Google Patents

Akustischer Einsatz für ein Lautsprecherbassreflexsystem Download PDF

Info

Publication number
EP2963944B1
EP2963944B1 EP15157053.8A EP15157053A EP2963944B1 EP 2963944 B1 EP2963944 B1 EP 2963944B1 EP 15157053 A EP15157053 A EP 15157053A EP 2963944 B1 EP2963944 B1 EP 2963944B1
Authority
EP
European Patent Office
Prior art keywords
insert
acoustic
wall
loudspeaker
outer tube
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
EP15157053.8A
Other languages
English (en)
French (fr)
Other versions
EP2963944A3 (de
EP2963944A2 (de
Inventor
Jack Oclee-Brown
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.)
GP Acoustics UK Ltd
Original Assignee
GP Acoustics UK Ltd
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 GP Acoustics UK Ltd filed Critical GP Acoustics UK Ltd
Priority to EP15157053.8A priority Critical patent/EP2963944B1/de
Publication of EP2963944A2 publication Critical patent/EP2963944A2/de
Publication of EP2963944A3 publication Critical patent/EP2963944A3/de
Application granted granted Critical
Publication of EP2963944B1 publication Critical patent/EP2963944B1/de
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; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type
    • H04R1/2823—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material
    • H04R1/2826—Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material for loudspeaker transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2815—Enclosures comprising vibrating or resonating arrangements of the bass reflex type

Definitions

  • This invention relates to reflex-type loudspeakers, and to liners or inserts for the vented port(s) of such loudspeakers.
  • a bass reflex system also known as a ported, vented box or reflex port
  • a bass reflex loudspeaker typically has one or more openings in the loudspeaker enclosure (called reflex ports or vents), each of which usually consists of a rigid pipe, duct or tube (typically circular or rectangular in cross-section) mounted in the front or rear face of the loudspeaker enclosure, leading from the air volume behind the driver to the external air.
  • the air in this opening behaves as an acoustic mass whereas the air contained within the enclosure behaves as an acoustic compliance; together these form an acoustic resonator known as a Helmholtz resonator.
  • the frequency at which this acoustic resonance occurs is determined by the length and cross sectional area of air in the opening, the volume of air within the enclosure, and the speed of sound. Acoustic radiation from the rear of the loudspeaker passes through this acoustic resonator, the acoustic resonator providing in a band-pass response. At the frequency of this acoustic resonance the high pressure in the enclosure reduces the cone motion and acoustic radiation from the front of the loudspeaker diaphragm.
  • the combined output from the opening and front of the diaphragm is in the form of a 4 th order high-pass filter.
  • a desired response can be achieved.
  • a maximally flat 4 th order butterworth high-pass response is the most obvious choice but, depending on the design constraints, there are numerous other choices.
  • Reflex systems are widely used since they provide a better combination of efficiency and low frequency extension compared to closed box systems. They also have the benefit of reducing the diaphragm excursion at frequencies around the enclosure tuning frequency where the duct provides the main acoustic output.
  • the low frequency response of a loudspeaker is strongly dependant on room dimensions, construction materials and the relative positions of listener and loudspeaker. Furthermore, what is an acoustically desirable performance is often a subjective choice, with different listeners preferring enhancement or attenuation of different sound frequencies; however, any single size and configuration of reflex port will have a predetermined and largely fixed effect on the overall acoustic performance of a loudspeaker.
  • One practical method of adjusting the low frequency response of a loudspeaker system is to vary the Helmholtz resonance by altering the properties of the port.
  • bungs cylindrical plugs of foamed polyurethane or felt have been inserted into the opening of the reflex port, and these adjust the resonance in the port by partially blocking it; such an approach is rather crude, such "bungs" introduce turbulence and resistive losses with only a minor change in tuning frequency.
  • the resistive losses introduced by air flowing through the porous bung reduce the bass output of the port with no improvement to low frequency extension.
  • the small decrease in tuning frequency does produce a small improvement in low frequency extension.
  • the turbulence occurs where high air velocity gradients occur in the air flow due to small port area, abrupt changes in port area or discontinuities such as those introduced by the bung.
  • the effect of turbulence is to introduce spurious noise and distortion, and also results in a loss of low frequency energy; consequently turbulence may limit undistorted bass output.
  • a better approach to adjusting the Helmholtz frequency is to provide the user with some means to adjust the port length and/or area.
  • the ports should preferably be flared at both ends avoiding discontinuities of the wall surface along the length of the port.
  • US4997057 discloses an acoustic reproduction range expanding apparatus which includes a closed or bass-reflex speaker system which has a low-frequency drive speaker and can reproduce a sound to a predetermined lowest frequency.
  • a port portion adapter consists of a mounting portion attached to an opening formed in a closed cabinet or a bass-reflex port of a bass-reflex cabinet, and a port portion.
  • the port portion constitutes a Helmholtz's resonator together with the cabinet when the port portion is attached to the cabinet, and has a port shape so that a resonance frequency becomes lower than the lowest frequency.
  • a drive portion adapter consists of an amplifier for driving the low-frequency drive speaker, and eliminates or invalidates an internal impedance inherent to the low-frequency drive speaker. The amplifier generates a negative impedance component in an output impedance.
  • the present invention provides an acoustic insert for lining an outer tube fitted to a loudspeaker enclosure to form a loudspeaker reflex port, the insert being an elongate hollow tube formed of flexible, low density foamed polymer material, having an outer wall, sized and configured to seat removably within the outer tube, and an inner wall extending in the elongate direction, the inner wall having a circumference (in the plane transverse to the elongate direction) which varies along the length of the insert, wherein the foam polymer material is formed with closed cells.
  • Such inserts are inexpensive to manufacture, easy to use and can be configured to allow a large range of tuning frequency adjustment since both area and length may readily be varied. For example, one form of tuning will give a flat response with more upper bass (such as is suitable for rooms with excessive low frequency absorption) whereas a different (lower) tuning will give a sloping bass response with more very low bass and less upper bass. Because the tubes are easily insertable and removable (partly as a result of their being made of flexible material), it is a simple matter to remove an insert of one size/configuration/material from the outer tube and replace it with a different one, thus changing the acoustic effect provided by the reflex port, enabling a user easily to change the frequency response of the loudspeaker as desired.
  • the present invention has the potential for loudspeakers to be made with acoustic performance which can be varied so as to be equally as acceptable in the home as in applications requiring high accuracy and neutrality.
  • the inserts can be used in different lengths on different models in a range of products.
  • Forming the insert of low density foam material is important to provide the ability to absorb unwanted sound frequencies, and enables the insert to be flexible. In particular sound is absorbed at the frequency of longitudinal acoustic resonances in the port, reducing output above the band-pass region.
  • the foam is closed cell rather than open or reticulated, so as to form an airtight seal with the outer supporting tube and so avoid the air leaks and resistive losses which are known to be highly detrimental to reflex enclosures and result in decreased bass and distortion.
  • the inserts can be used with the reflex ports of existing reflex loudspeakers, provided the existing reflex port (equating to the "outer tube") and the inserts are of matching size and configuration.
  • the circumference (in the plane transverse to the elongate direction) of the inner wall of the insert may be substantially symmetric at any point along the length of the insert. This makes for ease of use (in that a user does not have to worry about the orientation of the insert when it is inserted into the reflex port), ease of calculation of acoustic effect, and ease of manufacture.
  • the inner wall of the tube may be substantially symmetric in the elongate direction.
  • the insert (as tubes generally do) has two open ends, and the inner wall of the insert may be narrower at at least one point between the ends than it is towards the ends of the tube; such an arrangement means that the insert acts as a kind of "throttle", the calculations to determine the acoustic effect of which are reasonably easy to calculate.
  • one or both ends of the insert may be flared outwardly, so as to blend in smoothly with the inner wall of the outer tube and avoid turbulence.
  • Reflex ports are commonly substantially circular, square, elliptical, racetrack or rectangular shaped along their inner wall; the outer wall of the insert may be similarly shaped, and the inner wall of the insert may be any one of these shapes (though for ease of manufacture the shapes of the inner and outer walls of the tube will typically match, but this need not necessarily be the case).
  • the outer wall of the insert may be the same size (radially from the elongate axis) as the inner surface of the outer tube, so as to fit snugly therein, or it may be slightly oversized so as to have a slight interference fit. This is advantageous, as it helps ensure that the insert in use remains in the correct longitudinal position within the outer tube, and does not become dislodged except when a user wishes to remove it.
  • the foam insert does not rattle or vibrate within the outer tube which could detract from the audible performance of the loudspeaker.
  • Other ways of retaining the insert in the correct longitudinal position within the outer tube will be apparent to the skilled person, such as by providing a releasable adhesive, or forming the outer wall of the insert with lugs, ribs or recesses which mate with matching formation on the inner wall of the outer tube. Where cost allows it is also possible to use the resilience of a flange on the foam insert to provide the retaining force for a bayonet style fixing. It is also possible to mount the port in the terminal panel or other convenient part of the loudspeaker.
  • the insert may be the same length as the outer tube, or it may be longer or shorter.
  • the insert may be provided with a lip of greater size than the inner circumference of the outer tube at one end of the tube, so that it is easy for a user to place the insert inside the outer tube at the correct longitudinal position, and not insert it "too far”; also, such a lip makes it easier for a user to extract the insert when desired.
  • the inner surface of the insert may be slightly rough, so as to introduce a small amount of turbulence in the adjacent boundary layer of air.
  • the invention extends to a kit comprising a number of such inserts, each of different dimensions, configuration and/or material, so that a user can easily tailor the frequency response as required.
  • a kit comprising a number of such inserts, each of different dimensions, configuration and/or material, so that a user can easily tailor the frequency response as required.
  • Such a range of insert lengths may be used with a set of interchangeable outer tubes of different lengths so as to provide further scope for tuning the loudspeaker performance.
  • a loudspeaker comprising one or more such inserts is also within the ambit of this invention.
  • Figure 1 is a schematic cut away view of an acoustic insert in accordance with the invention in position inside an outer tube forming a reflex port.
  • Figure 1 is an isometric, cross-sectional schematic of an arrangement 2 comprising an acoustic insert 6 seated within an outer tube 4 which is fitted to the enclosure of a loudspeaker (not shown).
  • the acoustic insert 6 and the outer tube 4 together form an open ended, cylindrical tube, with a first end 8 opening at the wall of the loudspeaker enclosure and a second end 10 inside the enclosure.
  • the insert flares outwardly at the first and second ends, with a central portion 14 of smaller radius (around the X axis shown) than at the two ends.
  • the first end of the outer tube 4 has a lip 16 which engages with the wall of the loudspeaker enclosure as is known in the art.
  • the insert which is made of low density foam material, is also formed with a matching lip 18, which seats on the lip 16 when the insert is fully inserted within the outer tube 4; this prevents the insert from being pushed too far inside the outer tube, and instead ensures that the insert 6 is in the correct longitudinal position (along the X axis) relative to the outer tube 4. Also, the lip 18, being outside the loudspeaker enclosure, is easy to grasp if the insert 6 is to be removed.
  • the insert tunes the resonance of the arrangement to attenuate certain frequency ranges (but not others), according to the configuration and dimensions of the inner wall of the insert 6), so as to alter the acoustic performance of the loudspeaker.
  • the resilience of the material from which the insert is formed may be such that in use it deforms slightly and/or the inner wall of the insert deflects and so absorbs sound.
  • the inner circumference of the insert is symmetrical at any point along the X axis, however it may be any shape, including asymmetric; in general however, the acoustic calculations are simplest for where the insert is cylindrical and/or symmetric/concentric.
  • the internal diameter may be varied, as well as its length, to give a wider range of tuning frequencies for less variation in depth, and that similar considerations apply to non-symmetric and/or non-concentric inserts.
  • the inner surface of the insert 6, being made of foam, has a certain roughness, however this surface could in some configurations be coated so as to have a smooth surface; alternatively the insert 6 could be formed with a smooth inner surface. For example by moulding the insert in a foamed material the surface of the moulding forms a solid skin which is sufficiently smooth.
  • the insert 6 could be coloured or bear suitable markings to indicate its effect on tuning the frequency response of the loudspeaker (for example, the inserts could vary in shade, with darker hues indicating a "lower” tune and lighter hues a "higher” tune, or they could be numbered according to a list of different degrees of tuning).
  • the insert may advantageously also comprise means for damping longitudinal resonance such as the impermeable, frequency-dependent acoustic leakage path arrangements described in GB2488758 (which provides a frequency-dependent acoustic leakage path in the reflex port tube, such as by having a port conduit acoustically coupling the interior of the enclosure to a region external thereto, the port conduit comprising an acoustic leakage path through a motile part thereof in a direction transverse to a longitudinal axis of the port conduit, the acoustic leakage path having a relatively high acoustic impedance at a first frequency value, and a relatively low acoustic impedance at a second, lower, frequency value; this can be achieved with a plurality of holes in the port tube and an impermeable membrane lining the conduit).
  • the arrangement could be provided with a front flare, or annular facing element which has the dual purpose of clamping the front flange or lip 18 of the insert 6 to the lip 16 and of

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)

Claims (15)

  1. Akustischer Einsatz (6) zum Auskleiden eines äußeren Rohres (4) zum Bilden einer Lautsprecherreflexöffnung, wobei der Einsatz (6) ein längliches hohles Rohr ist, das aus einem Polymerschaummaterial mit niedriger Dichte gefertigt ist, und eine äußere Wand, die so dimensioniert und ausgelegt ist, dass sie entfernbar im äußeren Rohr (4) sitzt, und eine innere Wand, die sich in der Längsrichtung erstreckt, aufweist, wobei die innere Wand einen Umfang hat, der entlang der Länge des Einsatzes (6) variiert,
    dadurch gekennzeichnet, dass das Polymerschaummaterial mit geschlossenen Zellen gebildet ist.
  2. Akustischer Einsatz nach Anspruch 1, wobei an einem beliebigen Punkt entlang der Länge des Einsatzes (6), der Umfang der inneren Wand des Einsatzes (6) symmetrisch ist.
  3. Akustischer Einsatz (6) nach Anspruch 1 oder 2, wobei die innere Wand des Einsatzes (6) in der Längsrichtung symmetrisch ist.
  4. Akustischer Einsatz (6) nach einem der vorhergehenden Ansprüche, wobei der Einsatz (6) zwei offene Enden (8, 10) aufweist und wobei die innere Wand des Einsatzes (6) an zumindest einem Punkt zwischen den Enden (8, 10) enger ist, als sie näher an den Enden des Einsatzes (6) ist.
  5. Akustischer Einsatz (6) nach einem der vorhergehenden Ansprüche, wobei der Einsatz (6) zwei offene Enden (8, 10) aufweist und wobei die innere Wand des Einsatzes an zumindest einem der Enden nach außen hin aufgeweitet ist.
  6. Akustischer Einsatz (6) nach einem der vorhergehenden Ansprüche, wobei die innere und/oder äußere Wand des Einsatzes, wenn entlang der Längsrichtung gesehen, kreisförmig, elliptisch, quadratisch oder rechteckig geformt ist.
  7. Akustischer Einsatz (6) nach einem der vorhergehenden Ansprüche, wobei das Polymerschaummaterial ein akustisch absorbierendes Material ist.
  8. Akustischer Einsatz (6) nach einem der vorhergehenden Ansprüche, wobei die innere Wand des Einsatzes (6) nachgibt, um Schall zu absorbieren.
  9. Lautsprecherreflexöffnung, umfassend einen akustischen Einsatz (6) nach einem der vorhergehenden Ansprüche und ein äußeres Rohr (4), wobei die äußere Wand des Einsatzes (6) die gleiche Größe wie eine innere Oberfläche des äußeren Rohres (4) hat.
  10. Lautsprecherreflexöffnung nach Anspruch 9, wobei die äußere Wand des Einsatzes (6) so dimensioniert ist, um mittels Festsitz innerhalb des äußeren Rohres (4) zu sitzen.
  11. Lautsprecherreflexöffnung nach Anspruch 9 oder 10, wobei der Einsatz (6) mit einer Lippe (16) versehen ist, die eine größere Größe hat als der innere Umfang des äußeren Rohres (4) an einem Ende des Einsatzes (6).
  12. Lautsprecherreflexöffnung nach einem der Ansprüche 9 bis 11, wobei die Länge des Einsatzes (6) die gleiche ist wie die Länge des äußeren Rohres (4).
  13. Lautsprecherreflexöffnung nach einem der Ansprüche 9 bis 11, wobei die Länge des Einsatzes (6) nicht die gleiche ist wie die Länge des äußeren Rohres (4).
  14. Ein Satz, umfassend mehrere akustische Einsätze (6) nach einem der Ansprüche 1 bis 8, von unterschiedlichen Abmessungen, Auslegungen und/oder Materialien.
  15. Lautsprecher vom Reflexöffnungstyp, umfassend einen oder mehrere akustische Einsätze (6) nach einem der Ansprüche 1 bis 8, oder eine oder mehrere Lautsprecherreflexöffnungen nach einem der Ansprüche 9 bis 13.
EP15157053.8A 2014-02-14 2015-02-27 Akustischer Einsatz für ein Lautsprecherbassreflexsystem Active EP2963944B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP15157053.8A EP2963944B1 (de) 2014-02-14 2015-02-27 Akustischer Einsatz für ein Lautsprecherbassreflexsystem

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB1402581.1A GB2523143B (en) 2014-02-14 2014-02-14 Loudspeaker bass reflex system
EP15157053.8A EP2963944B1 (de) 2014-02-14 2015-02-27 Akustischer Einsatz für ein Lautsprecherbassreflexsystem

Publications (3)

Publication Number Publication Date
EP2963944A2 EP2963944A2 (de) 2016-01-06
EP2963944A3 EP2963944A3 (de) 2018-01-10
EP2963944B1 true EP2963944B1 (de) 2021-03-31

Family

ID=50440131

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15157053.8A Active EP2963944B1 (de) 2014-02-14 2015-02-27 Akustischer Einsatz für ein Lautsprecherbassreflexsystem

Country Status (2)

Country Link
EP (1) EP2963944B1 (de)
GB (1) GB2523143B (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017186311A1 (en) * 2016-04-29 2017-11-02 Burmester Audiosysteme Gmbh Bass reflex tube for a loudspeaker
EP3586524B1 (de) * 2017-02-23 2023-06-07 Sonova AG Ein hörgeätemodul, ein löse-werkzeug, ein hörgerät und eine methode zum entfernen eines moduls von einem gehäuse
WO2018206090A1 (en) 2017-05-09 2018-11-15 Arcelik Anonim Sirketi System for bass audio compensation using mechanical means

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5435704Y2 (de) * 1976-01-19 1979-10-30
FI790850A7 (fi) * 1978-08-11 1980-02-12 Roland P Kerno Hoegtalare
DE68919495T2 (de) * 1988-03-25 1995-07-20 Yamaha Corp Akustischer Apparat.
JP2751190B2 (ja) * 1988-03-25 1998-05-18 ヤマハ株式会社 音響再生帯域拡大装置およびその方法
US5286928A (en) * 1993-04-12 1994-02-15 Borland Nathan J Tunable speaker tube
US5892183A (en) * 1997-07-26 1999-04-06 U.S. Philips Corporation Loudspeaker system having a bass-reflex port
WO2012080879A1 (en) * 2010-12-15 2012-06-21 Koninklijke Philips Electronics N.V. A loudspeaker

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
EP2963944A3 (de) 2018-01-10
EP2963944A2 (de) 2016-01-06
GB2523143A (en) 2015-08-19
GB2523143B (en) 2021-04-28
HK1213719A1 (zh) 2016-07-08
GB201402581D0 (en) 2014-04-02

Similar Documents

Publication Publication Date Title
KR101713053B1 (ko) 배기 챔버를 가진 질량 로딩된 이어버드
CA2512576C (en) Ported loudspeaker system and method with reduced air turbulence, bipolar radiation pattern and novel appearance
CA2198113C (en) Ported loudspeaker system and method with reduced air turbulence
RU2601515C2 (ru) Снабженные проходными отверстиями корпуса аудио динамика
US4146745A (en) Loudspeaker enclosure with multiple acoustically isolated drivers and a common port
US4410770A (en) Directional microphone
US6275597B1 (en) Loudspeaker system having a bass-reflex port
US9749735B1 (en) Waveguide
JP7531580B2 (ja) 導波管付き指向性マルチウェイスピーカー
US10721549B2 (en) Direct-radiating earphone drivers
KR101644738B1 (ko) 케이블 스토퍼부재가 구비된 이어폰
CN102131137A (zh) 自动增(半)音的喇叭口
US11082768B2 (en) Apparatus with acoustic enhancement and method for the same
EP2963944A2 (de) Lautsprecherbassreflexsystem
CN204681561U (zh) 内耳甲式耳机
US9794680B2 (en) Loudspeaker bass reflex system
CN111182400B (zh) 一种入耳式耳机
CN109348380A (zh) 发声装置及便携终端
JP6912050B2 (ja) スピーカ用のバスレフレックスチューブ
WO2021071877A1 (en) Horn loudspeakers
AU7221998A (en) Loudspeaker systems
CN113906766B (zh) 用于吸收扬声器声共振的扬声器系统、方法和装置
CN205454005U (zh) 一种用于电声装置的非谐振箱体结构及音箱
US4785908A (en) Vented loudspeaker
WO2025046324A2 (en) A filed replicable and adjustable bass port attachment assembly for sound system

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

AK Designated contracting states

Kind code of ref document: A2

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

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

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

RIC1 Information provided on ipc code assigned before grant

Ipc: H04R 1/28 20060101AFI20171205BHEP

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

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20180615

RBV Designated contracting states (corrected)

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

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

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20190726

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20201021

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

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

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

RBV Designated contracting states (corrected)

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

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 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: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1378313

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210415

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602015067382

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

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: 20210630

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: 20210630

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: 20210331

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: 20210331

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20210331

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: 20210331

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: 20210331

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20210331

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1378313

Country of ref document: AT

Kind code of ref document: T

Effective date: 20210331

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

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: 20210331

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: 20210331

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: 20210331

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: 20210331

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: 20210331

Ref country code: NL

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: 20210331

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

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: 20210731

Ref country code: PT

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: 20210802

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: 20210331

Ref country code: ES

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: 20210331

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: 20210331

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: 20210331

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602015067382

Country of ref document: DE

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: 20210331

Ref country code: DK

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: 20210331

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: 20220104

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

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: 20210731

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

Ref country code: IT

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: 20210331

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602015067382

Country of ref document: DE

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

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: 20210331

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: BE

Ref legal event code: MM

Effective date: 20220228

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

Ref country code: LU

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

Effective date: 20220227

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

Ref country code: FR

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

Effective date: 20220228

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: 20220228

Ref country code: IE

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

Effective date: 20220227

Ref country code: DE

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

Effective date: 20220901

Ref country code: CH

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

Effective date: 20220228

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

Ref country code: BE

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

Effective date: 20220228

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: 20150227

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: 20210331

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: 20210331

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: 20210331

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

Ref country code: GR

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

Effective date: 20210331

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

Ref country code: GR

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

Effective date: 20210331

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: 20210331