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
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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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| FZDE | Discontinued |