AU5902099A - Parametric loudspeaker with electro-acoustical diaphragm transducer - Google Patents

Parametric loudspeaker with electro-acoustical diaphragm transducer

Info

Publication number
AU5902099A
AU5902099A AU59020/99A AU5902099A AU5902099A AU 5902099 A AU5902099 A AU 5902099A AU 59020/99 A AU59020/99 A AU 59020/99A AU 5902099 A AU5902099 A AU 5902099A AU 5902099 A AU5902099 A AU 5902099A
Authority
AU
Australia
Prior art keywords
electro
parametric loudspeaker
diaphragm transducer
acoustical diaphragm
acoustical
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
Application number
AU59020/99A
Inventor
James J. Croft Iii
Pierre Khuri-Yakub
Elwood G. Norris
Alan Robert Selfridge
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.)
Genasys Inc
Original Assignee
American Technology Corp
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 American Technology Corp filed Critical American Technology Corp
Publication of AU5902099A publication Critical patent/AU5902099A/en
Abandoned legal-status Critical Current

Links

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)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
AU59020/99A 1998-09-24 1999-08-26 Parametric loudspeaker with electro-acoustical diaphragm transducer Abandoned AU5902099A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US15944298A 1998-09-24 1998-09-24
US09159442 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
AU5902099A true AU5902099A (en) 2000-04-10

Family

ID=22572623

Family Applications (1)

Application Number Title Priority Date Filing Date
AU59020/99A Abandoned AU5902099A (en) 1998-09-24 1999-08-26 Parametric loudspeaker with electro-acoustical diaphragm transducer

Country Status (8)

Country Link
EP (1) EP1123634A4 (en)
JP (1) JP2002526004A (en)
CN (2) CN1181704C (en)
AU (1) AU5902099A (en)
BR (1) BR9913954A (en)
CA (1) CA2345339A1 (en)
HK (1) HK1041763A1 (en)
WO (1) WO2000018182A1 (en)

Families Citing this family (36)

* Cited by examiner, † Cited by third party
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
JP4588321B2 (en) * 2001-10-09 2010-12-01 ポンペイ，フランク，ジョセフ Ultrasonic transducers for parametric arrays
CN1754405B (en) * 2003-02-27 2010-04-14 Nxp股份有限公司 Generating device for generating a useful stream of a medium, in particular for generating sound
JP4438444B2 (en) 2004-02-19 2010-03-24 セイコーエプソン株式会社 Projector equipped with ultrasonic speaker and method for displaying sound reproduction range in projector
JP2005354582A (en) * 2004-06-14 2005-12-22 Seiko Epson Corp Ultrasonic transducer and ultrasonic speaker employing it
JP4103877B2 (en) * 2004-09-22 2008-06-18 セイコーエプソン株式会社 Electrostatic ultrasonic transducer and ultrasonic speaker
KR100689876B1 (en) 2004-12-20 2007-03-09 삼성전자주식회사 Sound reproducing system by transfering and reproducing acoustc signal with ultrasonic
JP2007028205A (en) 2005-07-15 2007-02-01 Sony Corp Electroacoustic transducer and method of forming diaphragm thereof
CN101558660B (en) * 2006-05-22 2013-08-21 奥迪欧彼塞尔斯有限公司 Apparatus and methods for generating pressure waves
KR101000291B1 (en) * 2007-12-20 2010-12-13 한국전자통신연구원 Apparatus and method for transmitting sound through nonlinear media
CN102082551A (en) * 2010-12-16 2011-06-01 瑞声声学科技(深圳)有限公司 Audio-frequency playback system of parametric acoustic array and modulating method thereof
WO2012086124A1 (en) * 2010-12-20 2012-06-28 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 Oscillator device and electronic instrument
CN103262576B (en) * 2010-12-20 2016-12-28 日本电气株式会社 Oscillator device and electronic installation
CN103220606B (en) * 2012-01-20 2015-10-21 中华大学 Electroacoustic transducer and manufacture method thereof
JP6315616B2 (en) * 2012-06-12 2018-04-25 ジョセフ ポンペイ フランク Ultrasonic transducer
US9002043B2 (en) 2013-02-20 2015-04-07 Turtle Beach Corporation Parametric transducer and related methods
US8718297B1 (en) * 2013-02-20 2014-05-06 Parametric Sound Corporation Parametric transducer and related methods
CN103152659A (en) * 2013-02-26 2013-06-12 广东欧珀移动通信有限公司 Piezoelectric ceramic speaker protective device and mobile terminal
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
JP2016531246A (en) * 2013-06-27 2016-10-06 ミニパンプス， エルエルシー Method for making corrugated flexible diaphragm
JP6255994B2 (en) * 2013-06-27 2018-01-10 株式会社リコー Energy converter
US9976713B2 (en) 2013-07-05 2018-05-22 Qualcomm Incorporated Apparatus and method for providing a frequency response for audio signals
RU2571588C2 (en) * 2014-07-24 2015-12-20 Владимир Анатольевич Ефремов Electronic device for automatic translation of oral speech from one language to another
JP6365164B2 (en) * 2014-09-18 2018-08-01 株式会社村田製作所 Vibration device and tactile presentation device
USRE49437E1 (en) 2014-09-30 2023-02-28 Apple Inc. Audio driver and power supply unit architecture
WO2016054100A1 (en) 2014-09-30 2016-04-07 Nunntawi Dynamics Llc Loudspeaker with reduced audio coloration caused by reflections from a surface
CN104688192B (en) * 2015-03-31 2017-06-06 西安交通大学 Audio sound source based on difference frequency ultrasound is produced and air flue characteristic test method and system
WO2017079435A1 (en) * 2015-11-03 2017-05-11 Nrg Systems, Inc. Techniques for providing a broad-band ultrasonic transducer device using a plurality of narrow-band transducer arrays and a method of wildlife deterrence using same
US10834497B2 (en) 2016-09-23 2020-11-10 Apple Inc. User interface cooling using audio component
TWI626854B (en) * 2016-11-24 2018-06-11 財團法人金屬工業研究發展中心 Electret thin film and manufacturing method thereof
WO2019199978A1 (en) * 2018-04-10 2019-10-17 Nrg Systems, Inc. Techniques for providing acoustic impedance matching for a broad-band ultrasonic transducer device and a method of wildlife deterrence using same
CN109168108B (en) * 2018-10-24 2021-03-02 维沃移动通信有限公司 Amplitude adjusting method and device for electroacoustic device and mobile terminal
CN112004176B (en) * 2020-08-19 2021-05-07 厦门大学 Underwater sound transducer for realizing underwater broadband collimation
US20220183659A1 (en) * 2020-12-15 2022-06-16 Sonicedge Ltd. Earphone Driver And Applications
CN117560607B (en) * 2023-12-29 2024-04-05 汉得利（常州）电子股份有限公司 Ultrasonic loudspeaker

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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
WO1986001670A1 (en) * 1984-08-28 1986-03-13 Matsushita Electric Industrial Co., Ltd. Directional speaker system
JP2745147B2 (en) * 1989-03-27 1998-04-28 三菱マテリアル 株式会社 Piezoelectric transducer
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

Also Published As

Publication number Publication date
EP1123634A1 (en) 2001-08-16
BR9913954A (en) 2002-02-13
CA2345339A1 (en) 2000-03-30
JP2002526004A (en) 2002-08-13
CN1620195A (en) 2005-05-25
CN1181704C (en) 2004-12-22
EP1123634A4 (en) 2006-04-19
WO2000018182A1 (en) 2000-03-30
CN1331901A (en) 2002-01-16
HK1041763A1 (en) 2002-07-19

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase