EP3189674A1 - Mems loudspeaker arrangement comprising a sound generator and a sound amplifier - Google Patents
Mems loudspeaker arrangement comprising a sound generator and a sound amplifierInfo
- Publication number
- EP3189674A1 EP3189674A1 EP15760428.1A EP15760428A EP3189674A1 EP 3189674 A1 EP3189674 A1 EP 3189674A1 EP 15760428 A EP15760428 A EP 15760428A EP 3189674 A1 EP3189674 A1 EP 3189674A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sound
- mems
- loudspeaker arrangement
- mems loudspeaker
- amplifier
- 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.)
- Granted
Links
- 238000001228 spectrum Methods 0.000 claims abstract description 5
- 239000012528 membrane Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 5
- 230000005540 biological transmission Effects 0.000 claims 1
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 230000004913 activation Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R19/00—Electrostatic transducers
- H04R19/02—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
- H04R1/02—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
- H04R1/40—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
- H04R19/00—Electrostatic transducers
- H04R19/005—Electrostatic transducers using semiconductor materials
-
- 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
- H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
-
- 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
- H04R2201/003—Mems transducers or their use
-
- 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 present invention relates to a MEMS loudspeaker arrangement for generating sound waves in the audible wavelength spectrum with a housing having a Schallleitkanal and arranged at the end of the Schallleitkanals sound outlet, with at least two MEMS speakers, which are arranged in such a way inside the housing that the Sound waves generated by the MEMS speakers can be guided via the common sound channel to the common sound outlet, and with a control unit for driving the two MEMS speakers. Furthermore, the present invention relates to a method for operating such a MEMS loudspeaker arrangement.
- MEMS microelectromechanical systems
- MEMS loudspeakers or microspeakers is known, for example, from DE 10 2012 220 819 A1.
- the sound is generated by a vibrating diaphragm of the MEMS loudspeaker.
- Such a microspeaker usually has to generate a high air volume shift in order to achieve a significant sound pressure level.
- Known MEMS speakers have the disadvantage that they must have a relatively large volume of construction in order to achieve a sufficient sound pressure level can.
- the object of the present invention is to eliminate the disadvantages of the prior art.
- a proposed MEMS loudspeaker arrangement for generating sound waves in the audible wavelength spectrum. It comprises a housing which has a Schallleitkanal and arranged at the end of the Schallleitkanals sound outlet opening. Furthermore, the MEMS loudspeaker arrangement comprises at least two MEMS loudspeakers. These are arranged in the interior of the housing such that the sound waves generated by the MEMS loudspeakers can be guided via the common sound-conducting channel to the common sound outlet opening. Also, the MEMS speaker assembly includes a control unit for driving the MEMS speakers.
- the downstream MEMS loudspeaker can influence the sound waves generated by the upstream MEMS loudspeaker, since they are guided past it due to the common sound conduction channel.
- the control unit is designed such that by means of this to increase the maximum volume of the MEMS loudspeaker arrangement, the two MEMS loudspeakers can be controlled such that the first of the at least two MEMS loudspeakers-that is, the MEMS loudspeaker whose sound waves cover the longer path to the common Sound outlet must cover - as a sound generator for generating an initial wave and this downstream second MEMS speaker - ie the one MEMS speakers whose sound waves compared to the first MEMS speakers have to travel a shorter distance to the sound outlet opening - is designed as a sound amplifier for amplifying this initial wave ,
- the sound pressure of the MEMS loudspeaker arrangement can be increased, whereby the maximum volume can be increased.
- the length of the sound conduction channel from the sound generator to the common sound outlet opening is greater than from the sound amplifier to the sound outlet opening.
- the sound waves generated by the sound generator must cover a longer path in the common sound guide as the sound waves generated by the sound amplifier.
- the sound waves generated by the sound generator are thereby guided past the downstream sound amplifier, so that it can be influenced by this on the sound waves generated by the sound generator.
- an increase in amplitude of the emitted from the sound generator start shaft can be effected by appropriate control of the sound amplifier.
- the sound conduction duct extends in the longitudinal direction of the MEMS loudspeaker arrangement and / or at least in the region of the MEMS loudspeakers rectilinearly, in particular with planar and / or mutually parallel side walls is formed.
- the Schallleitkanal substantially has a cuboid geometry.
- the MEMS loudspeakers are preferably arranged, in particular on the same side wall of the cuboid sound-conducting channel.
- the MEMS loudspeaker arrangement can be made very compact and structurally simple if the common sound outlet opening is formed on one end, in particular on one end side, of the housing. It is advantageous if the sound generator and the sound amplifier are arranged side by side. It is also advantageous if these are arranged to each other such that their Membranlenklenkungsachsen extend parallel to each other and / or perpendicular to a longitudinal axis of the housing. As a result, disruptive factors influencing the propagation of sound in the sound conduction channel can be reduced.
- the sound generator and the at least one sound amplifier in particular on their side facing away from the sound-conducting channel, have a common cavity.
- This is preferably at least partially formed by a housing cavity.
- the cavity may be widened by a carrier substrate cavity of the respective MEMS loudspeaker.
- this common cavity preferably extends over the entire width of all MEMS loudspeakers arranged along the sound conduction channel. Because a plurality of MEMS loudspeakers share a common cavity, advantageously the spring effect of the air within the cavity can be reduced since the cavity volume of each individual MEMS loudspeaker is increased to the entire volume of the common cavity.
- the sound generator and the at least one sound amplifier work in the same frequency range.
- the sound generator and the sound amplifier are designed as separate components.
- each of them preferably has its own membrane. This is also kept swingable in particular by a support frame along its Membranauslenkungsachse.
- MEMS loudspeakers are formed as a single component with a common membrane, wherein preferably each of these MEMS loudspeakers is assigned a separately controllable and / or mutually vibration-decoupled membrane region.
- the sound generator can be controlled by the control unit at a first time in such a way that an initial wave can be introduced into the sound-conducting duct.
- the membrane or alternatively the membrane region of the sound generator for the generation of the initial wave is hineinbewegbar in the Schallleitkanal.
- control unit - in particular depending on the first time and / or the Schallleitkanalin between sound generator and sound amplifier - a second time for driving the downstream sound amplifier, ie in particular, its membrane is more specific.
- control unit of the sound amplifier in particular to the second time previously determined by the control unit, can be controlled such that by means of this a superimposing wave is generated, so that from the initial wave and the superposition wave, a resultant wave can be generated with compared to the starting wave of higher amplitude.
- control unit of the sound amplifier in particular to the second time previously determined by the control unit, can be controlled such that by means of this a superimposing wave is generated, so that from the initial wave and the superposition wave, a resultant wave can be generated with compared to the starting wave of higher amplitude.
- its membrane and / or associated membrane region can be moved into the sound conduction channel for generating the superposition wave.
- the MEMS loudspeaker arrangement has a second sound amplifier.
- the already amplified by the first sound amplifier sound wave can be amplified again.
- the second sound amplifier is downstream of the first sound amplifier in the direction of the sound outlet opening.
- the second sound amplifier can influence the sound waves amplified by the first sound amplifier.
- the membrane of the second sound amplifier for generating a second overlay wave is hineinbewegbar in the Schallleitkanal, so that from the first resulting wave and the second overlay wave, a second resulting wave with compared to the first resulting wave of higher amplitude - bar is.
- the first sound amplifier remains preferably activated at the third time.
- the initial wave, the at least one superposition wave and the at least one resulting wave have the same frequency.
- FIG. 1 shows a longitudinal section through a MEMS loudspeaker arrangement with a sound generator and two sound amplifiers designed as MEMS speakers and
- FIG. 1 shows a MEMS loudspeaker arrangement 1 by means of which sound waves in the audible wavelength spectrum can be generated. It comprises a housing 2, which is preferably made at least partially of silicon. Inside the housing 2, a plurality of MEMS speakers 3 are arranged, of which only one is provided with reference numerals for the sake of clarity.
- the housing 2 is preferably designed in several parts in order to facilitate the mounting of the MEMS loudspeakers 3.
- the housing 2 comprises a housing middle part, in particular made of silicon, and / or a housing frame in which the MEMS loudspeakers 3 are fastened in a positive, force and / or materially bonded manner.
- the housing middle part and / or the housing frame can be closed on its top and / or bottom with a lid.
- the at least one cover it is advantageous if it is made of a material which is stiffer in comparison to the middle part of the housing and / or of the housing, in particular a metal, a ceramic and / or a composite material.
- the MEMS loudspeaker arrangement 13 has a total of three MEMS loudspeakers 3, variants with only two or even more than three MEMS loudspeakers 3 being conceivable as well.
- these MEMS loudspeakers 3 are designed as separate components.
- each of these MEMS loudspeakers 3 comprises a carrier frame 4, in particular made of silicon.
- the latter receives a membrane 5 in such a way that it can be deflected by electrical activation along a membrane deflection axis 6.
- the MEMS speakers 3 all work in the same frequency range. However, contrary to the present exemplary illustration, they may have different sized membrane surfaces.
- the MEMS loudspeakers 3 can also have diaphragms 5 which can be deflected to different degrees.
- MEMS loudspeakers 3 are not formed as separate components, as shown in FIG. 1, but as a single component.
- the MEMS loudspeakers would have a common membrane, with each of these MEMS loudspeakers being associated with a separately controllable and / or vibration-decoupled membrane region.
- the MEMS speakers 3 are arranged side by side according to the present embodiment. Your membranes 5 are thus deflected in the same direction.
- the MEMS loudspeakers 3 have mutually equidistant distances. Their respective diaphragm deflection axes 6, of which only one is shown for the sake of clarity, are aligned parallel to one another.
- the MEMS loudspeakers 3 are arranged in the interior of the housing 2 such that their respective diaphragm deflection axis 6 is aligned perpendicular to the longitudinal axis 7 of the housing 2.
- the MEMS loudspeakers 3 have a common sound-conducting channel 8. This extends according to the present embodiment, parallel to the longitudinal axis 7 of the housing 2.
- the Schallleitkanal 8 is rectilinear and / or aligned parallel to the longitudinal axis 7.
- the sound guide channel 8 is preferably formed substantially cuboid. He therefore has flat longitudinally extending side walls.
- the sound-conducting channel 8 has a constant height and / or width over its entire length.
- the MEMS loudspeakers 3 are arranged one behind the other along the sound conduction channel 8.
- the diaphragm deflection axes 6 of the MEMS loudspeakers 3 accordingly extend transversely to the common sound-conducting channel 8.
- the MEMS loudspeakers 3 have a common cavity 9.
- the cavity 9 is arranged on the side facing away from the Schallleitkanal 8 side of the MEMS speakers 3. It is at least partially formed by a housing cavity.
- the common cavity 9, in particular the housing cavity is preferably designed as a cuboid and / or extends in the longitudinal direction of the housing 2 across all MEMS loudspeakers 3.
- the cavity 9 is aligned parallel to the sound channel 8.
- the housing 2 has a sound outlet opening 10. It is arranged at the end of the common Schallleitkanals 8, so that all MEMS speakers 3 share a single sound outlet opening 10.
- the common sound outlet opening 10 is arranged on an end face 1 1 of the substantially cuboidal housing.
- the MEMS loudspeakers 3 are thus distributed over the length of the common sound conduction channel 8 such that they have sound conduction duct sections of different lengths for the common sound exit opening 10.
- the length of the section of the sound conduction channel 8 between the image-wise left MEMS loudspeaker 3 and the sound exit opening 10 is greater than the section of the sound conduction channel 8 between the middle and / or right MEMS loudspeaker 3 and the common sound exit opening 10.
- Loudspeaker 3 generated sound waves must therefore travel in comparison to the other MEMS speakers 3 a longer distance in Schallleitkanal 8 in order to reach the common sound outlet opening 10.
- the MEMS loudspeakers 3 can be controlled via a control unit, not shown here, such that a sound wave generated by the first, in particular furthest away from the sound exit opening 10, MEMS loudspeaker 3 is amplified by the MEMS loudspeaker 3 located downstream of it.
- the MEMS loudspeaker arrangement 1 has at least one MEMS loudspeaker 3 designed as a sound generator 12 and sound amplifier 13, 14.
- the MEMS loudspeaker 3 having the longest sound guide channel section-ie, the left-hand MEMS loudspeaker 3 according to the illustration-is designed as a sound generator 12.
- the sound generator 12 downstream MEMS speakers 3 are thus formed as a sound amplifier 13, 14.
- the sound generator 12 MEMS loudspeaker 3 as the first sound amplifier 13 and the first sound amplifier 13 downstream MEMS loudspeaker 3 referred to as the second sound amplifier 14.
- FIGS. 2a, 2b and 2c The mode of operation of the MEMS loudspeaker arrangement 1 for increasing the maximum volume is illustrated in FIGS. 2a, 2b and 2c.
- the sound generator 12 is activated at a first point in time, as a result of which a sound wave, referred to hereinafter as the start wave 15, is generated.
- the membrane 5 of the sound generator 12 moves into the sound-conducting channel 8, whereby a certain volume of air is displaced in the direction of the sound outlet opening 10.
- the sound waves shown schematically in FIGS. 2a to 2c do not correspond either to their scale or to their contour of a sound wave generated in reality.
- the control unit not shown here, several parameters with respect to the spatial and / or physical configuration of the common Schallleitkanals 8 and / or the MEMS speakers 3 are known.
- the control unit is thus able, in particular in dependence on the first time and / or the sound channel length between the sound generator 12 and the first sound amplifier 13, to determine a second time for driving the sound generator 12 connected downstream of the first sound amplifier 13.
- This second time is selected according to FIG. 2 b by the control unit in such a way that a first superimposition shaft 1 6 generated by the first sound amplifier 13 is superimposed on the starting shaft 15.
- the control unit is thus able to control the first sound amplifier 13 such that a constructive interference is generated.
- the amplitude of the initial wave 15 is increased by the first superposition wave 16.
- a first resulting shaft 17 is generated, which in comparison to the Front shaft 15 has a higher amplitude.
- the amplitude of the first resultant wave 17 corresponds to the sum of the initial wave 15 and the first superposition wave 1 6.
- the sound generator 12 is also deflected. In this way, it can be avoided that the air is pressed again in the direction of the sound generator 12 when the sound amplifier 13 is deflected. Instead, the membrane 5 of the still activated sound generator 12 forms a space blockage, which ensures that when the first sound amplifier 13 is deflected, as much air as possible is pressed in the direction of the common sound outlet opening 10.
- this first resulting shaft 17 can be amplified once more by the second sound amplifier 14 located downstream of the first sound amplifier 13.
- the control unit determines in a comparable manner a third time at which the second sound amplifier 14 is to be controlled. In order to determine this third point in time, the control unit is aware of at least the length of the sound conduction channel 8 between the two sound amplifiers 13, 14. For additional reinforcement of the first resulting shaft 17 of this is superimposed according to Figure 2c, a second overlay shaft 18, whereby a second resultant shaft 19 is generated.
- the first sound amplifier 13 is also activated during this deflection during the deflection of the second sound amplifier 14, so that its diaphragm acts as a block.
- the air can not flow back into the Schallleitkanal 8, but is pressed in the direction of the sound outlet opening 10.
- the sound generator 12 is moved back to its original position, this being due to the common cavity 9 and the deflected sound amplifiers 13, 14, can be done with reduced power.
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Otolaryngology (AREA)
- General Health & Medical Sciences (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Circuit For Audible Band Transducer (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Headphones And Earphones (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102014112841.9A DE102014112841A1 (en) | 2014-09-05 | 2014-09-05 | MEMS loudspeaker arrangement with a sound generator and a sound amplifier |
PCT/EP2015/069900 WO2016034560A1 (en) | 2014-09-05 | 2015-09-01 | Mems loudspeaker arrangement comprising a sound generator and a sound amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3189674A1 true EP3189674A1 (en) | 2017-07-12 |
EP3189674B1 EP3189674B1 (en) | 2019-11-13 |
Family
ID=54065873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP15760428.1A Active EP3189674B1 (en) | 2014-09-05 | 2015-09-01 | Mems speaker comprising a sound driver and a sound amplifier |
Country Status (6)
Country | Link |
---|---|
US (1) | US10097928B2 (en) |
EP (1) | EP3189674B1 (en) |
KR (1) | KR20170055974A (en) |
CN (1) | CN106797510B (en) |
DE (1) | DE102014112841A1 (en) |
WO (1) | WO2016034560A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4300995A3 (en) * | 2018-12-19 | 2024-04-03 | Sonion Nederland B.V. | Miniature speaker with multiple sound cavities |
CN111756903B (en) * | 2020-07-01 | 2022-05-20 | 维沃移动通信有限公司 | Speaker assembly and electronic device |
CN217116396U (en) * | 2022-03-03 | 2022-08-02 | 瑞声开泰科技(武汉)有限公司 | MEMS loudspeaker |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005008511B4 (en) * | 2005-02-24 | 2019-09-12 | Tdk Corporation | MEMS microphone |
KR100933536B1 (en) * | 2005-03-03 | 2009-12-23 | 도쿄엘렉트론가부시키가이샤 | Computer-readable recording medium recording microstructure inspection apparatus, microstructure inspection method and microstructure inspection program |
US8737674B2 (en) * | 2011-02-11 | 2014-05-27 | Infineon Technologies Ag | Housed loudspeaker array |
US9069830B2 (en) | 2011-03-29 | 2015-06-30 | International Business Machines Corporation | Retrieving data objects |
US8804982B2 (en) * | 2011-04-02 | 2014-08-12 | Harman International Industries, Inc. | Dual cell MEMS assembly |
JP5799619B2 (en) | 2011-06-24 | 2015-10-28 | 船井電機株式会社 | Microphone unit |
US9402137B2 (en) | 2011-11-14 | 2016-07-26 | Infineon Technologies Ag | Sound transducer with interdigitated first and second sets of comb fingers |
DE102011086722A1 (en) * | 2011-11-21 | 2013-05-23 | Robert Bosch Gmbh | Micromechanical functional device, in particular speaker device, and corresponding manufacturing method |
DE102012216996A1 (en) * | 2012-09-21 | 2014-03-27 | Robert Bosch Gmbh | Micro-electromechanical systems (MEMS) sound transducer of MEMS sound transducer arrangement, has diaphragm whose projection is arranged above projection of substrate, and whose recess is extended themselves into recess of substrate |
KR101771064B1 (en) * | 2013-06-28 | 2017-08-24 | 인텔 아이피 코포레이션 | Microelectromechanical system (mems) on application specific integrated circuit (asic) |
-
2014
- 2014-09-05 DE DE102014112841.9A patent/DE102014112841A1/en active Pending
-
2015
- 2015-09-01 EP EP15760428.1A patent/EP3189674B1/en active Active
- 2015-09-01 KR KR1020177007571A patent/KR20170055974A/en active IP Right Grant
- 2015-09-01 CN CN201580046247.XA patent/CN106797510B/en active Active
- 2015-09-01 WO PCT/EP2015/069900 patent/WO2016034560A1/en active Application Filing
- 2015-09-01 US US15/507,303 patent/US10097928B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US10097928B2 (en) | 2018-10-09 |
DE102014112841A1 (en) | 2016-03-10 |
US20170280251A1 (en) | 2017-09-28 |
EP3189674B1 (en) | 2019-11-13 |
CN106797510B (en) | 2019-08-13 |
KR20170055974A (en) | 2017-05-22 |
CN106797510A (en) | 2017-05-31 |
WO2016034560A1 (en) | 2016-03-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1371056B1 (en) | Sound transmission device for a motor vehicle | |
EP3152925B1 (en) | Loudspeaker system | |
EP0916817B1 (en) | Active silencer | |
EP2617956B1 (en) | Exhaust gas device for an internal combustion engine | |
DE10042012B4 (en) | Device for noise shaping in a motor vehicle | |
EP3189674B1 (en) | Mems speaker comprising a sound driver and a sound amplifier | |
DE102016124084B4 (en) | Loudspeaker system with directional effect | |
DE112012003495T5 (en) | Acoustic receiver low-pass filter | |
DE19751596A1 (en) | Active noise damper for automobile exhaust | |
DE2336319A1 (en) | PROCEDURE FOR FEEDBACK STABILIZATION AND MINIATURE SOUND AMPLIFIER SYSTEM, IN PARTICULAR FOR HEAVY-DUTY DEVICES | |
DE624049C (en) | Flat speaker built into a housing | |
EP3189673A1 (en) | Loudspeaker arrangement | |
DE10223872A1 (en) | Device for noise shaping in a motor vehicle | |
DE19734120A1 (en) | Sound display device | |
EP3268975B1 (en) | Motor vehicle operating device with sound-generating switching element | |
DE102008059239A1 (en) | Loudspeaker device for use in three-way system of vehicle, has low-, middle- and high tone loud speakers arranged in carcass body element of vehicle, where loudspeakers exhibit different frequency characteristics | |
DE102006052063B4 (en) | Speaker system and method for operating a speaker system | |
DE102008058496B4 (en) | Filter bank system with specific stop attenuation components for a hearing device | |
DE102018207780B3 (en) | Method for operating a hearing aid | |
DE102017214404B4 (en) | Speaker arrangement and vehicle | |
DE102015106000A1 (en) | Sound generator for a motor vehicle | |
DE102014018636B4 (en) | Method for operating an input device, input device and motor vehicle with an input device | |
DE19528888A1 (en) | Arrangement for canceling sound waves | |
DE10346637B4 (en) | Broad beam multi-way speaker chassis | |
EP3598433A1 (en) | Method for improving the perceptibility of a special signal |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE |
|
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 |
|
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: 20170403 |
|
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 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: BOTTONI, FERRUCCIO Inventor name: RUSCONI CLERICI, ANDREA |
|
DAV | Request for validation of the european patent (deleted) | ||
DAX | Request for extension of the european patent (deleted) | ||
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: USOUND GMBH |
|
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: 20180516 |
|
RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: RUSCONI CLERICI BELTRAMI, ANDREA Inventor name: BOTTONI, FERRUCCIO |
|
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: 20190710 |
|
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 |
|
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: CH Ref legal event code: EP Ref country code: AT Ref legal event code: REF Ref document number: 1202936 Country of ref document: AT Kind code of ref document: T Effective date: 20191115 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502015010938 Country of ref document: DE |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20191113 |
|
REG | Reference to a national code |
Ref country code: LT Ref legal event code: MG4D |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20191113 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: 20191113 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: 20191113 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: 20200213 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: 20191113 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: 20191113 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: 20191113 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: 20200214 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: 20200313 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: 20200213 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20191113 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: 20191113 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: 20200313 |
|
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: 20191113 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20191113 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: 20191113 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: 20191113 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: 20191113 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: 20191113 |
|
REG | Reference to a national code |
Ref country code: DE Ref legal event code: R097 Ref document number: 502015010938 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: 20191113 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: 20191113 |
|
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: 20200814 |
|
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: 20191113 |
|
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: 20191113 |
|
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: 20191113 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20200930 |
|
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: 20200901 |
|
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: 20200901 Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200930 |
|
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: 20191113 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: 20191113 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: 20191113 |
|
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: 20191113 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20220922 Year of fee payment: 8 Ref country code: AT Payment date: 20220922 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20220924 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 20220928 Year of fee payment: 8 |
|
P01 | Opt-out of the competence of the unified patent court (upc) registered |
Effective date: 20230417 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20230919 Year of fee payment: 9 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 1202936 Country of ref document: AT Kind code of ref document: T Effective date: 20230901 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20230901 |