CA2345339A1 - Parametric loudspeaker with electro-acoustical diaphragm transducer - Google Patents
Parametric loudspeaker with electro-acoustical diaphragm transducer Download PDFInfo
- Publication number
- CA2345339A1 CA2345339A1 CA002345339A CA2345339A CA2345339A1 CA 2345339 A1 CA2345339 A1 CA 2345339A1 CA 002345339 A CA002345339 A CA 002345339A CA 2345339 A CA2345339 A CA 2345339A CA 2345339 A1 CA2345339 A1 CA 2345339A1
- Authority
- CA
- Canada
- Prior art keywords
- diaphragm
- film
- emitter
- ultrasonic
- parametric
- 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.)
- Abandoned
Links
- 230000006835 compression Effects 0.000 claims abstract description 63
- 238000007906 compression Methods 0.000 claims abstract description 63
- 239000006260 foam Substances 0.000 claims abstract description 47
- 238000011161 development Methods 0.000 claims abstract description 13
- 239000010408 film Substances 0.000 claims description 263
- 238000000034 method Methods 0.000 claims description 79
- 239000012528 membrane Substances 0.000 claims description 37
- 238000006073 displacement reaction Methods 0.000 claims description 31
- 239000000463 material Substances 0.000 claims description 26
- 230000033001 locomotion Effects 0.000 claims description 20
- 230000004044 response Effects 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 17
- 230000003993 interaction Effects 0.000 claims description 14
- 239000010409 thin film Substances 0.000 claims description 14
- 230000005236 sound signal Effects 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 10
- 238000010168 coupling process Methods 0.000 claims description 10
- 238000005859 coupling reaction Methods 0.000 claims description 10
- 230000008569 process Effects 0.000 claims description 10
- 230000005855 radiation Effects 0.000 claims description 10
- 230000002708 enhancing effect Effects 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 230000002411 adverse Effects 0.000 claims description 5
- 230000005686 electrostatic field Effects 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 238000000926 separation method Methods 0.000 claims description 5
- 230000000670 limiting effect Effects 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 230000001902 propagating effect Effects 0.000 claims description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 claims 4
- 238000010521 absorption reaction Methods 0.000 claims 3
- 238000007789 sealing Methods 0.000 claims 3
- 230000000087 stabilizing effect Effects 0.000 claims 2
- 238000007373 indentation Methods 0.000 claims 1
- 239000000696 magnetic material Substances 0.000 claims 1
- 230000004936 stimulating effect Effects 0.000 claims 1
- 239000004033 plastic Substances 0.000 abstract description 4
- 229920003023 plastic Polymers 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- 239000002023 wood Substances 0.000 abstract description 2
- 239000002033 PVDF binder Substances 0.000 abstract 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 abstract 1
- 230000035939 shock Effects 0.000 description 20
- 230000008901 benefit Effects 0.000 description 15
- 230000000694 effects Effects 0.000 description 13
- 239000000758 substrate Substances 0.000 description 10
- 230000006870 function Effects 0.000 description 7
- 230000000644 propagated effect Effects 0.000 description 7
- 229920002799 BoPET Polymers 0.000 description 6
- 239000005041 Mylar™ Substances 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 5
- 206010000060 Abdominal distension Diseases 0.000 description 4
- 230000002457 bidirectional effect Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 3
- 238000011835 investigation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008447 perception Effects 0.000 description 3
- 239000002985 plastic film Substances 0.000 description 3
- 229920003223 poly(pyromellitimide-1,4-diphenyl ether) Polymers 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 238000010420 art technique Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000002860 competitive effect Effects 0.000 description 2
- 239000003989 dielectric material Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 230000002452 interceptive effect Effects 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- 238000003462 Bender reaction Methods 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000003486 chemical etching Methods 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 235000014510 cooky Nutrition 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000026058 directional locomotion Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000010097 foam moulding Methods 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 230000008570 general process Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000004807 localization Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 239000002991 molded plastic Substances 0.000 description 1
- 230000005404 monopole Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000012811 non-conductive material Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 238000003856 thermoforming Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
- 238000007514 turning Methods 0.000 description 1
- 239000011800 void material Substances 0.000 description 1
- 235000012431 wafers Nutrition 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R2217/00—Details of magnetostrictive, piezoelectric, or electrostrictive transducers covered by H04R15/00 or H04R17/00 but not provided for in any of their subgroups
- H04R2217/03—Parametric transducers where sound is generated or captured by the acoustic demodulation of amplitude modulated ultrasonic waves
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Circuit For Audible Band Transducer (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Diaphragms For Electromechanical Transducers (AREA)
- Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15944298A | 1998-09-24 | 1998-09-24 | |
US09/159,442 | 1998-09-24 | ||
PCT/US1999/019580 WO2000018182A1 (en) | 1998-09-24 | 1999-08-26 | Parametric loudspeaker with electro-acoustical diaphragm transducer |
Publications (1)
Publication Number | Publication Date |
---|---|
CA2345339A1 true CA2345339A1 (en) | 2000-03-30 |
Family
ID=22572623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA002345339A Abandoned CA2345339A1 (en) | 1998-09-24 | 1999-08-26 | Parametric loudspeaker with electro-acoustical diaphragm transducer |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1123634A4 (zh) |
JP (1) | JP2002526004A (zh) |
CN (2) | CN1181704C (zh) |
AU (1) | AU5902099A (zh) |
BR (1) | BR9913954A (zh) |
CA (1) | CA2345339A1 (zh) |
HK (1) | HK1041763A1 (zh) |
WO (1) | WO2000018182A1 (zh) |
Families Citing this family (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050100181A1 (en) * | 1998-09-24 | 2005-05-12 | Particle Measuring Systems, Inc. | Parametric transducer having an emitter film |
EP1444861B1 (en) * | 2001-10-09 | 2020-03-18 | Frank Joseph Pompei | Ultrasonic transducer for parametric array |
WO2004077880A1 (en) * | 2003-02-27 | 2004-09-10 | Koninklijke Philips Electronics N.V. | Generating device for generating a useful stream of a medium, in particular for generating sound |
JP4438444B2 (ja) | 2004-02-19 | 2010-03-24 | セイコーエプソン株式会社 | 超音波スピーカを搭載したプロジェクタ、及び該プロジェクタにおける音の再生範囲表示方法 |
JP2005354582A (ja) | 2004-06-14 | 2005-12-22 | Seiko Epson Corp | 超音波トランスデューサ及びこれを用いた超音波スピーカ |
JP4103877B2 (ja) * | 2004-09-22 | 2008-06-18 | セイコーエプソン株式会社 | 静電型超音波トランスデューサ及び超音波スピーカ |
KR100689876B1 (ko) * | 2004-12-20 | 2007-03-09 | 삼성전자주식회사 | 초음파 변환 재생방법에 의한 음향재생 스크린 |
JP2007028205A (ja) * | 2005-07-15 | 2007-02-01 | Sony Corp | 電気音響変換器およびその振動膜成型方法 |
CN101558660B (zh) * | 2006-05-22 | 2013-08-21 | 奥迪欧彼塞尔斯有限公司 | 用于产生压强波的装置和方法 |
KR101000291B1 (ko) * | 2007-12-20 | 2010-12-13 | 한국전자통신연구원 | 비선형 매질을 통한 음향 송신 장치 및 방법 |
CN102082551A (zh) * | 2010-12-16 | 2011-06-01 | 瑞声声学科技(深圳)有限公司 | 声参量阵音频重放系统及其调制方法 |
JP5954181B2 (ja) * | 2010-12-20 | 2016-07-20 | 日本電気株式会社 | 発振装置および電子機器 |
EP2658287A4 (en) * | 2010-12-20 | 2014-06-11 | Nec Casio Mobile Comm Ltd | OSCILLATOR AND ELECTRONIC INSTRUMENT |
CN103220606B (zh) * | 2012-01-20 | 2015-10-21 | 中华大学 | 电声转换器及其制造方法 |
EP2858829B1 (en) * | 2012-06-12 | 2021-05-19 | Frank Joseph Pompei | Ultrasonic transducer |
US8718297B1 (en) * | 2013-02-20 | 2014-05-06 | Parametric Sound Corporation | Parametric transducer and related methods |
US9002043B2 (en) | 2013-02-20 | 2015-04-07 | Turtle Beach Corporation | Parametric transducer and related methods |
CN103152659A (zh) * | 2013-02-26 | 2013-06-12 | 广东欧珀移动通信有限公司 | 一种压电陶瓷扬声器保护装置及移动终端 |
US9981139B2 (en) * | 2013-05-08 | 2018-05-29 | Dalhousie University | Acoustic transmitter and implantable receiver |
US9332344B2 (en) | 2013-06-13 | 2016-05-03 | Turtle Beach Corporation | Self-bias emitter circuit |
US9550023B2 (en) * | 2013-06-27 | 2017-01-24 | Minipumps, Llc | Method of making a corrugated deflection diaphragm |
JP6255994B2 (ja) | 2013-06-27 | 2018-01-10 | 株式会社リコー | エネルギー変換装置 |
US9976713B2 (en) | 2013-07-05 | 2018-05-22 | Qualcomm Incorporated | Apparatus and method for providing a frequency response for audio signals |
RU2571588C2 (ru) * | 2014-07-24 | 2015-12-20 | Владимир Анатольевич Ефремов | Электронное устройство для автоматического перевода устной речи с одного языка на другой |
JP6365164B2 (ja) * | 2014-09-18 | 2018-08-01 | 株式会社村田製作所 | 振動装置および触覚提示装置 |
USRE49437E1 (en) | 2014-09-30 | 2023-02-28 | Apple Inc. | Audio driver and power supply unit architecture |
EP3202159B1 (en) | 2014-09-30 | 2020-08-05 | Apple Inc. | Loudspeaker with reduced audio coloration caused by reflections from a surface |
CN104688192B (zh) * | 2015-03-31 | 2017-06-06 | 西安交通大学 | 基于差频超声的音频声源产生和气道特性测试方法与系统 |
CN108348158B (zh) * | 2015-11-03 | 2022-02-08 | Nrg系统股份有限公司 | 用于野生动物阻吓的宽带超声换能器设备及其使用方法 |
US10771890B2 (en) | 2016-09-23 | 2020-09-08 | Apple Inc. | Annular support structure |
TWI626854B (zh) * | 2016-11-24 | 2018-06-11 | 財團法人金屬工業研究發展中心 | 具立體形貌之駐極體薄膜的製作方法及其產品 |
CN112351682B (zh) * | 2018-04-10 | 2022-04-08 | Nrg系统股份有限公司 | 用于为宽带超声换能器设备提供声阻抗匹配的技术及使用该技术的野生动物阻吓方法 |
CN109168108B (zh) * | 2018-10-24 | 2021-03-02 | 维沃移动通信有限公司 | 电声器件振幅调整方法、装置和移动终端 |
CN112004176B (zh) * | 2020-08-19 | 2021-05-07 | 厦门大学 | 一种实现水下宽带准直的水声换能装置 |
US20220183659A1 (en) * | 2020-12-15 | 2022-06-16 | Sonicedge Ltd. | Earphone Driver And Applications |
CN117560607B (zh) * | 2023-12-29 | 2024-04-05 | 汉得利(常州)电子股份有限公司 | 一种超声扬声器 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4056742A (en) * | 1976-04-30 | 1977-11-01 | Tibbetts Industries, Inc. | Transducer having piezoelectric film arranged with alternating curvatures |
US4242541A (en) * | 1977-12-22 | 1980-12-30 | Olympus Optical Co., Ltd. | Composite type acoustic transducer |
US4276449A (en) * | 1978-06-01 | 1981-06-30 | Tadashi Sawafuji | Speaker or microphone having corrugated diaphragm with conductors thereon |
US4322877A (en) * | 1978-09-20 | 1982-04-06 | Minnesota Mining And Manufacturing Company | Method of making piezoelectric polymeric acoustic transducer |
DE3590430T1 (de) * | 1984-08-28 | 1986-09-18 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | Lautsprechersystem mit ausgeprägter Richtwirkung |
JP2745147B2 (ja) * | 1989-03-27 | 1998-04-28 | 三菱マテリアル 株式会社 | 圧電変換素子 |
EP0599250B1 (en) * | 1992-11-24 | 2001-10-04 | Canon Kabushiki Kaisha | Acoustic output device, and electronic apparatus using said device |
US6304662B1 (en) * | 1998-01-07 | 2001-10-16 | American Technology Corporation | Sonic emitter with foam stator |
US5859915A (en) * | 1997-04-30 | 1999-01-12 | American Technology Corporation | Lighted enhanced bullhorn |
-
1999
- 1999-08-26 AU AU59020/99A patent/AU5902099A/en not_active Abandoned
- 1999-08-26 JP JP2000571709A patent/JP2002526004A/ja active Pending
- 1999-08-26 EP EP99946657A patent/EP1123634A4/en not_active Withdrawn
- 1999-08-26 WO PCT/US1999/019580 patent/WO2000018182A1/en not_active Application Discontinuation
- 1999-08-26 CN CNB998126802A patent/CN1181704C/zh not_active Expired - Fee Related
- 1999-08-26 CN CN 200410087797 patent/CN1620195A/zh active Pending
- 1999-08-26 CA CA002345339A patent/CA2345339A1/en not_active Abandoned
- 1999-08-26 BR BR9913954-5A patent/BR9913954A/pt not_active Application Discontinuation
-
2002
- 2002-05-04 HK HK02103388A patent/HK1041763A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CN1181704C (zh) | 2004-12-22 |
JP2002526004A (ja) | 2002-08-13 |
WO2000018182A1 (en) | 2000-03-30 |
HK1041763A1 (en) | 2002-07-19 |
CN1331901A (zh) | 2002-01-16 |
EP1123634A4 (en) | 2006-04-19 |
AU5902099A (en) | 2000-04-10 |
BR9913954A (pt) | 2002-02-13 |
CN1620195A (zh) | 2005-05-25 |
EP1123634A1 (en) | 2001-08-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US20050244016A1 (en) | Parametric loudspeaker with electro-acoustical diaphragm transducer | |
CA2345339A1 (en) | Parametric loudspeaker with electro-acoustical diaphragm transducer | |
US6606389B1 (en) | Piezoelectric film sonic emitter | |
US6188772B1 (en) | Electrostatic speaker with foam stator | |
US6775388B1 (en) | Ultrasonic transducers | |
JP4802998B2 (ja) | 静電型超音波トランスデューサの駆動制御方法、静電型超音波トランスデューサ、これを用いた超音波スピーカ、音声信号再生方法、超指向性音響システム及び表示装置 | |
US6151398A (en) | Magnetic film ultrasonic emitter | |
US6108433A (en) | Method and apparatus for a magnetically induced speaker diaphragm | |
KR100574711B1 (ko) | 스피커 장치 및 음파 에너지 전파 방법 | |
JP4294798B2 (ja) | 超音波トランスデューサ | |
US20050100181A1 (en) | Parametric transducer having an emitter film | |
WO2001050810A1 (en) | Piezoelectric film sonic emitter | |
US6175636B1 (en) | Electrostatic speaker with moveable diaphragm edges | |
US7376236B1 (en) | Piezoelectric film sonic emitter | |
US20080212807A1 (en) | Micromachined Acoustic Transducers | |
EP1677575B1 (en) | Sound reproducing screen for an ultrasonic converting and reproducing method | |
US20100046789A1 (en) | Method for converting electric signals into acoustic oscillations and an electric gas-kinetic transducer | |
KR102591674B1 (ko) | 음향 및 촉각 재생 장치 | |
US20020076069A1 (en) | Sonic emitter with foam stator | |
JP2007228472A (ja) | 静電型超音波トランスデューサ、静電型超音波トランスデューサの構成方法、および超音波スピーカ | |
NL2025207B1 (en) | Electroacoustic transducer and loudspeaker, microphone and electronic device comprising said electroacoustic transducer | |
JP7099110B2 (ja) | 電気音響変換装置 | |
JP3858415B2 (ja) | パネル型スピーカ装置 | |
RU2014758C1 (ru) | Электроакустический преобразователь | |
CN115955634A (zh) | 电声驱动装置及扬声设备 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
FZDE | Discontinued |