DE69601725T2 - Lautsprecher mit paneelförmigen akustischen abstrahlelementen - Google Patents
Lautsprecher mit paneelförmigen akustischen abstrahlelementenInfo
- Publication number
- DE69601725T2 DE69601725T2 DE69601725T DE69601725T DE69601725T2 DE 69601725 T2 DE69601725 T2 DE 69601725T2 DE 69601725 T DE69601725 T DE 69601725T DE 69601725 T DE69601725 T DE 69601725T DE 69601725 T2 DE69601725 T2 DE 69601725T2
- Authority
- DE
- Germany
- Prior art keywords
- panel
- suspended ceiling
- transducer
- acoustic
- radiator
- 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.)
- Expired - Lifetime
Links
- 230000005855 radiation Effects 0.000 title description 5
- 239000004033 plastic Substances 0.000 claims description 9
- 229920003023 plastic Polymers 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 7
- 230000001413 cellular effect Effects 0.000 claims description 5
- 230000001902 propagating effect Effects 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 239000011162 core material Substances 0.000 description 13
- 239000000463 material Substances 0.000 description 13
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 9
- 230000008901 benefit Effects 0.000 description 6
- 238000013016 damping Methods 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 5
- 239000011888 foil Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 239000010410 layer Substances 0.000 description 4
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- 241000264877 Hippospongia communis Species 0.000 description 3
- 229920000271 Kevlar® Polymers 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000004761 kevlar Substances 0.000 description 3
- 239000002648 laminated material Substances 0.000 description 3
- 239000000123 paper Substances 0.000 description 3
- 229920000784 Nomex Polymers 0.000 description 2
- 239000004964 aerogel Substances 0.000 description 2
- 239000011111 cardboard Substances 0.000 description 2
- 239000012792 core layer Substances 0.000 description 2
- 229920001821 foam rubber Polymers 0.000 description 2
- 238000009432 framing Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004763 nomex Substances 0.000 description 2
- 239000002985 plastic film Substances 0.000 description 2
- 229920006255 plastic film Polymers 0.000 description 2
- 239000002984 plastic foam Substances 0.000 description 2
- 230000002787 reinforcement Effects 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 229910000967 As alloy Inorganic materials 0.000 description 1
- 229920002799 BoPET Polymers 0.000 description 1
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 229920002430 Fibre-reinforced plastic Polymers 0.000 description 1
- 229920000106 Liquid crystal polymer Polymers 0.000 description 1
- 239000004977 Liquid-crystal polymers (LCPs) Substances 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- 239000005041 Mylar™ Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 239000004830 Super Glue Substances 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 239000012080 ambient air Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- LDVVMCZRFWMZSG-UHFFFAOYSA-N captan Chemical compound C1C=CCC2C(=O)N(SC(Cl)(Cl)Cl)C(=O)C21 LDVVMCZRFWMZSG-UHFFFAOYSA-N 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 210000003850 cellular structure Anatomy 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- -1 e.g. Inorganic materials 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000004794 expanded polystyrene Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011151 fibre-reinforced plastic Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000009970 fire resistant effect Effects 0.000 description 1
- 239000006261 foam material Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000011101 paper laminate Substances 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000013047 polymeric layer Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000012858 resilient material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000007704 transition Effects 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
- 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
- H04R7/00—Diaphragms for electromechanical transducers; Cones
- H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
- H04R7/04—Plane diaphragms
- H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion
-
- 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
- H04R2201/02—Details casings, cabinets or mounting therein for transducers covered by H04R1/02 but not provided for in any of its subgroups
- H04R2201/021—Transducers or their casings adapted for mounting in or to a wall or ceiling
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
- Details Of Audible-Bandwidth Transducers (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9517918.0A GB9517918D0 (en) | 1995-09-02 | 1995-09-02 | Acoustic device |
GBGB9522281.6A GB9522281D0 (en) | 1995-10-31 | 1995-10-31 | Acoustic device |
GBGB9606836.6A GB9606836D0 (en) | 1996-03-30 | 1996-03-30 | Acoustic device |
PCT/GB1996/002153 WO1997009843A1 (en) | 1995-09-02 | 1996-09-02 | Loudspeakers comprising panel-form acoustic radiating elements |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69601725D1 DE69601725D1 (de) | 1999-04-15 |
DE69601725T2 true DE69601725T2 (de) | 1999-09-16 |
Family
ID=34865242
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69601725T Expired - Lifetime DE69601725T2 (de) | 1995-09-02 | 1996-09-02 | Lautsprecher mit paneelförmigen akustischen abstrahlelementen |
Country Status (19)
Country | Link |
---|---|
EP (1) | EP0847662B1 (pl) |
JP (1) | JPH11514509A (pl) |
AT (1) | ATE177576T1 (pl) |
AU (1) | AU703071B2 (pl) |
BR (1) | BR9610450A (pl) |
CA (1) | CA2230053A1 (pl) |
DE (1) | DE69601725T2 (pl) |
DK (1) | DK0847662T3 (pl) |
EA (1) | EA002109B1 (pl) |
ES (1) | ES2131407T3 (pl) |
HK (1) | HK1008640A1 (pl) |
HU (1) | HUP9900181A3 (pl) |
IL (1) | IL123484A (pl) |
NZ (1) | NZ316552A (pl) |
PL (1) | PL182618B1 (pl) |
RO (1) | RO119040B1 (pl) |
SK (1) | SK25798A3 (pl) |
TR (1) | TR199800358T1 (pl) |
WO (1) | WO1997009843A1 (pl) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008027385B4 (de) * | 2008-06-09 | 2019-04-25 | Fischer Profil Gmbh | Sandwichelement für die Erstellung von Wänden und Dächern |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
IL134749A0 (en) | 1997-09-03 | 2001-04-30 | New Transducers Ltd | Trim panel comprising an integral acoustic system |
US6443586B1 (en) | 1999-03-10 | 2002-09-03 | New Transducers Limited | Light-emitting panel-form loudspeaker |
AU2928100A (en) * | 1999-03-10 | 2000-09-28 | New Transducers Limited | Resonant-mode panel loudspeaker with light emitter |
DE19922395C1 (de) * | 1999-05-14 | 2001-01-11 | Harman Audio Electronic Sys | Deckenelement |
EP1206897A2 (en) | 1999-07-23 | 2002-05-22 | Digital Sonics, Llc | Flat panel speaker |
PT1122974E (pt) * | 2000-02-02 | 2007-04-30 | Siemens Ag | Altifalante plano integrado num sistema de iluminação |
DE10030746B4 (de) * | 2000-06-23 | 2008-11-20 | Lisa Dräxlmaier GmbH | Innenverkleidungsteil für Fahrzeuge und verfahren zur Herstellung desselben |
US8103024B2 (en) * | 2000-09-20 | 2012-01-24 | Harman Becker Automotive Systems Gmbh | Door with structural components configured to radiate acoustic energy |
NZ514651A (en) * | 2000-11-03 | 2003-05-30 | Armstrong World Ind Inc | Flat panel radiator spaced from acoustically resistant scrim, with assembly located in grid structure |
US6911901B2 (en) | 2000-12-20 | 2005-06-28 | New Transducers Limited | Multi-functional vibro-acoustic device |
US10848118B2 (en) | 2004-08-10 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10158337B2 (en) | 2004-08-10 | 2018-12-18 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US8284955B2 (en) | 2006-02-07 | 2012-10-09 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US11431312B2 (en) | 2004-08-10 | 2022-08-30 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US11202161B2 (en) | 2006-02-07 | 2021-12-14 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US9615189B2 (en) | 2014-08-08 | 2017-04-04 | Bongiovi Acoustics Llc | Artificial ear apparatus and associated methods for generating a head related audio transfer function |
US10069471B2 (en) | 2006-02-07 | 2018-09-04 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10701505B2 (en) | 2006-02-07 | 2020-06-30 | Bongiovi Acoustics Llc. | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US10848867B2 (en) | 2006-02-07 | 2020-11-24 | Bongiovi Acoustics Llc | System and method for digital signal processing |
EP2023654A1 (de) * | 2007-07-23 | 2009-02-11 | Knauf AMF GmbH & Co. KG | Plattenlautsprecher |
GB0724149D0 (en) | 2007-12-11 | 2008-01-23 | New Transducers Ltd | Touch-sensitive device |
JP6012937B2 (ja) * | 2011-06-17 | 2016-10-25 | 住友理工株式会社 | サウンドマスキングシステム |
US9264004B2 (en) | 2013-06-12 | 2016-02-16 | Bongiovi Acoustics Llc | System and method for narrow bandwidth digital signal processing |
US9883318B2 (en) | 2013-06-12 | 2018-01-30 | Bongiovi Acoustics Llc | System and method for stereo field enhancement in two-channel audio systems |
US9906858B2 (en) | 2013-10-22 | 2018-02-27 | Bongiovi Acoustics Llc | System and method for digital signal processing |
US10639000B2 (en) | 2014-04-16 | 2020-05-05 | Bongiovi Acoustics Llc | Device for wide-band auscultation |
US10820883B2 (en) | 2014-04-16 | 2020-11-03 | Bongiovi Acoustics Llc | Noise reduction assembly for auscultation of a body |
US9615813B2 (en) | 2014-04-16 | 2017-04-11 | Bongiovi Acoustics Llc. | Device for wide-band auscultation |
US9564146B2 (en) | 2014-08-01 | 2017-02-07 | Bongiovi Acoustics Llc | System and method for digital signal processing in deep diving environment |
US9638672B2 (en) | 2015-03-06 | 2017-05-02 | Bongiovi Acoustics Llc | System and method for acquiring acoustic information from a resonating body |
US9906867B2 (en) | 2015-11-16 | 2018-02-27 | Bongiovi Acoustics Llc | Surface acoustic transducer |
US9621994B1 (en) | 2015-11-16 | 2017-04-11 | Bongiovi Acoustics Llc | Surface acoustic transducer |
CA3096877A1 (en) | 2018-04-11 | 2019-10-17 | Bongiovi Acoustics Llc | Audio enhanced hearing protection system |
WO2020028833A1 (en) | 2018-08-02 | 2020-02-06 | Bongiovi Acoustics Llc | System, method, and apparatus for generating and digitally processing a head related audio transfer function |
US10834487B1 (en) * | 2018-12-03 | 2020-11-10 | V Charles Douglass Coleman | Wall art music speaker system |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3247925A (en) * | 1962-03-08 | 1966-04-26 | Lord Corp | Loudspeaker |
DE2819615A1 (de) * | 1978-05-05 | 1979-11-08 | Messerschmitt Boelkow Blohm | Verfahren zur erzielung gleichmaessiger schallverteilungseigenschaften |
CH645227A5 (fr) * | 1981-12-22 | 1984-09-14 | Multiphonie Sa | Transducteur electro-acoustique. |
US4928312A (en) * | 1988-10-17 | 1990-05-22 | Amel Hill | Acoustic transducer |
WO1992003024A1 (en) * | 1990-08-04 | 1992-02-20 | The Secretary Of State For Defence In Her Britannic Majesty's Government Of The United Kingdom Of Great Britain And Northern Ireland | Panel-form loudspeaker |
-
1996
- 1996-09-02 CA CA002230053A patent/CA2230053A1/en not_active Abandoned
- 1996-09-02 IL IL12348496A patent/IL123484A/xx not_active IP Right Cessation
- 1996-09-02 ES ES96929395T patent/ES2131407T3/es not_active Expired - Lifetime
- 1996-09-02 BR BR9610450A patent/BR9610450A/pt not_active IP Right Cessation
- 1996-09-02 SK SK257-98A patent/SK25798A3/sk unknown
- 1996-09-02 TR TR1998/00358T patent/TR199800358T1/xx unknown
- 1996-09-02 RO RO98-00633A patent/RO119040B1/ro unknown
- 1996-09-02 JP JP9510954A patent/JPH11514509A/ja not_active Ceased
- 1996-09-02 DE DE69601725T patent/DE69601725T2/de not_active Expired - Lifetime
- 1996-09-02 AT AT96929395T patent/ATE177576T1/de not_active IP Right Cessation
- 1996-09-02 EA EA199800253A patent/EA002109B1/ru not_active IP Right Cessation
- 1996-09-02 WO PCT/GB1996/002153 patent/WO1997009843A1/en not_active Application Discontinuation
- 1996-09-02 EP EP96929395A patent/EP0847662B1/en not_active Expired - Lifetime
- 1996-09-02 NZ NZ316552A patent/NZ316552A/en unknown
- 1996-09-02 PL PL96325272A patent/PL182618B1/pl unknown
- 1996-09-02 HU HU9900181A patent/HUP9900181A3/hu unknown
- 1996-09-02 AU AU68810/96A patent/AU703071B2/en not_active Ceased
- 1996-09-02 DK DK96929395T patent/DK0847662T3/da active
-
1998
- 1998-07-28 HK HK98109442A patent/HK1008640A1/xx not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102008027385B4 (de) * | 2008-06-09 | 2019-04-25 | Fischer Profil Gmbh | Sandwichelement für die Erstellung von Wänden und Dächern |
Also Published As
Publication number | Publication date |
---|---|
EP0847662A1 (en) | 1998-06-17 |
IL123484A (en) | 2000-12-06 |
ATE177576T1 (de) | 1999-03-15 |
EP0847662B1 (en) | 1999-03-10 |
TR199800358T1 (xx) | 1998-05-21 |
RO119040B1 (ro) | 2004-02-27 |
ES2131407T3 (es) | 1999-07-16 |
NZ316552A (en) | 1998-05-27 |
AU6881096A (en) | 1997-03-27 |
IL123484A0 (en) | 1998-09-24 |
EA002109B1 (ru) | 2001-12-24 |
PL182618B1 (pl) | 2002-02-28 |
BR9610450A (pt) | 1999-06-15 |
AU703071B2 (en) | 1999-03-11 |
SK25798A3 (en) | 1998-09-09 |
DE69601725D1 (de) | 1999-04-15 |
PL325272A1 (en) | 1998-07-20 |
HUP9900181A3 (en) | 2001-08-28 |
HK1008640A1 (en) | 1999-05-14 |
DK0847662T3 (da) | 1999-09-27 |
HUP9900181A2 (hu) | 1999-05-28 |
WO1997009843A1 (en) | 1997-03-13 |
JPH11514509A (ja) | 1999-12-07 |
EA199800253A1 (ru) | 1998-10-29 |
CA2230053A1 (en) | 1997-03-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69601725T2 (de) | Lautsprecher mit paneelförmigen akustischen abstrahlelementen | |
DE69602203T2 (de) | Paneelförmige lautsprecher | |
DE69601723T2 (de) | Lautsprecher mit plattenförmigen abstrahlelementen | |
DE69602102T2 (de) | Inertial schwingungswandler | |
DE69601734T2 (de) | Schwingungswandler | |
DE69602279T2 (de) | Lautsprecher mit paneelförmigen akustischen abstrahlelementen | |
DE69601728T2 (de) | Bildschirm mit lautsprechern | |
DE69601731T2 (de) | Personalcomputer mit lautsprechern | |
DE69601726T2 (de) | Personenkraftwagen mit lautsprechern mit paneelförmigen akustischen abstrahlelementen | |
DE69601648T2 (de) | Anschlagtafeln mit lautsprechern | |
DE69602101T2 (de) | Inertial-schwingungswandler | |
DE69601733T2 (de) | Tragbarer cd-spieler mit lautsprechern mit paneelförmigen akustischen abstrahlelementen | |
DE69602100T2 (de) | Lautsprecher mit paneelförmigen schallausstrahlenden elementen | |
DE69602204T2 (de) | PANEELFöRMIGE MIKROFONE | |
DE69601729T2 (de) | Lautsprecher enthaltende anzeigeschirme | |
DE69602281T2 (de) | Musikinstrumente mit lautsprechern | |
DE69601732T2 (de) | Verpackung | |
DE69601724T2 (de) | Grusskarte oder dergleichen mit lautsprecher | |
DE69601554T2 (de) | Verkaufsautomat | |
US6215881B1 (en) | Ceiling tile loudspeaker | |
US6351542B2 (en) | Loudspeakers with panel-form acoustic radiating elements | |
DE69601647T2 (de) | Paneelförmige lautsprecher | |
US6320967B1 (en) | Passenger vehicles incorporating loudspeakers comprising panel-form acoustic radiating elements | |
US6327369B1 (en) | Loudspeakers comprising panel-form acoustic radiating elements | |
US6519349B1 (en) | Loudspeaker |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent |