JPH036720B2 - - Google Patents

Info

Publication number
JPH036720B2
JPH036720B2 JP59046230A JP4623084A JPH036720B2 JP H036720 B2 JPH036720 B2 JP H036720B2 JP 59046230 A JP59046230 A JP 59046230A JP 4623084 A JP4623084 A JP 4623084A JP H036720 B2 JPH036720 B2 JP H036720B2
Authority
JP
Japan
Prior art keywords
piezoelectric vibrator
piezoelectric
resonant frequency
diaphragm
frequency
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
Application number
JP59046230A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60190100A (ja
Inventor
Takeshi Nakamura
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.)
Murata Manufacturing Co Ltd
Original Assignee
Murata Manufacturing Co Ltd
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 Murata Manufacturing Co Ltd filed Critical Murata Manufacturing Co Ltd
Priority to JP59046230A priority Critical patent/JPS60190100A/ja
Priority to US06/707,602 priority patent/US4593160A/en
Publication of JPS60190100A publication Critical patent/JPS60190100A/ja
Publication of JPH036720B2 publication Critical patent/JPH036720B2/ja
Granted 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/225—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for telephonic receivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
JP59046230A 1984-03-09 1984-03-09 圧電スピ−カ Granted JPS60190100A (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP59046230A JPS60190100A (ja) 1984-03-09 1984-03-09 圧電スピ−カ
US06/707,602 US4593160A (en) 1984-03-09 1985-03-04 Piezoelectric speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59046230A JPS60190100A (ja) 1984-03-09 1984-03-09 圧電スピ−カ

Publications (2)

Publication Number Publication Date
JPS60190100A JPS60190100A (ja) 1985-09-27
JPH036720B2 true JPH036720B2 (en]) 1991-01-30

Family

ID=12741310

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59046230A Granted JPS60190100A (ja) 1984-03-09 1984-03-09 圧電スピ−カ

Country Status (2)

Country Link
US (1) US4593160A (en])
JP (1) JPS60190100A (en])

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US7376236B1 (en) 1997-03-17 2008-05-20 American Technology Corporation Piezoelectric film sonic emitter
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US5885129A (en) * 1997-03-25 1999-03-23 American Technology Corporation Directable sound and light toy
US7088830B2 (en) * 1997-04-30 2006-08-08 American Technology Corporation Parametric ring emitter
US5859915A (en) * 1997-04-30 1999-01-12 American Technology Corporation Lighted enhanced bullhorn
US6137890A (en) * 1997-05-06 2000-10-24 Compaq Computer Corporation Lumped parameter resonator of a piezoelectric speaker
US6175636B1 (en) 1998-06-26 2001-01-16 American Technology Corporation Electrostatic speaker with moveable diaphragm edges
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US6850623B1 (en) 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
US20050100181A1 (en) * 1998-09-24 2005-05-12 Particle Measuring Systems, Inc. Parametric transducer having an emitter film
US6181797B1 (en) 1999-01-09 2001-01-30 Noise Cancellation Technologies, Inc. Piezo speaker for improved passenger cabin audio systems
US20050195985A1 (en) * 1999-10-29 2005-09-08 American Technology Corporation Focused parametric array
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US6453045B1 (en) 2000-02-04 2002-09-17 Motorola, Inc. Telecommunication device with piezo-electric transducer for handsfree and private operating modes
US6653762B2 (en) 2000-04-19 2003-11-25 Murata Manufacturing Co., Ltd. Piezoelectric type electric acoustic converter
DE10042185B4 (de) * 2000-07-10 2006-02-16 Murata Mfg. Co., Ltd., Nagaokakyo Piezoelektrischer elektroakustischer Wandler
US7019621B2 (en) * 2001-01-02 2006-03-28 Stanley E. Woodard Methods and apparatus to increase sound quality of piezoelectric devices
KR20030079956A (ko) * 2001-01-22 2003-10-10 어메리컨 테크놀로지 코포레이션 개선된 단일단부 평면 자기 스피커
US6934402B2 (en) * 2001-01-26 2005-08-23 American Technology Corporation Planar-magnetic speakers with secondary magnetic structure
GB0117662D0 (en) * 2001-07-20 2001-09-12 New Transducers Ltd Loudspeaker system
GB0117663D0 (en) * 2001-07-20 2001-09-12 New Transducers Ltd Listening anti eavesdropping device
GB0211508D0 (en) * 2002-05-20 2002-06-26 New Transducers Ltd Transducer
US7309944B2 (en) * 2002-07-31 2007-12-18 Siemens Aktiengesellschaft Piezoactuator and method for production of the piezoactuator
JP2004274593A (ja) * 2003-03-11 2004-09-30 Temuko Japan:Kk 骨伝導スピーカ
EP1632104A2 (en) * 2003-06-09 2006-03-08 American Technology Corporation System and method for delivering audio-visual content along a customer waiting line
US7564981B2 (en) * 2003-10-23 2009-07-21 American Technology Corporation Method of adjusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same
JP4460935B2 (ja) 2004-04-02 2010-05-12 東芝モバイルディスプレイ株式会社 平面表示装置等の電子・電気製品の製造方法、及びこのための帯状収納体
KR100625772B1 (ko) * 2004-12-03 2006-09-20 (주)아이블포토닉스 다중 작용 진동자가 구비된 압전 진동자
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WO2009063905A1 (ja) * 2007-11-12 2009-05-22 Nec Corporation 圧電音響素子及び電子機器
US20100322455A1 (en) * 2007-11-21 2010-12-23 Emo Labs, Inc. Wireless loudspeaker
JP5136644B2 (ja) * 2008-07-14 2013-02-06 株式会社村田製作所 圧電発電装置
US8189851B2 (en) 2009-03-06 2012-05-29 Emo Labs, Inc. Optically clear diaphragm for an acoustic transducer and method for making same
US20110044476A1 (en) * 2009-08-14 2011-02-24 Emo Labs, Inc. System to generate electrical signals for a loudspeaker
CN103168480B (zh) 2010-06-14 2016-03-30 乌龟海岸公司 改善的参量信号处理和发射器系统及相关方法
WO2012087074A1 (ko) * 2010-12-23 2012-06-28 에이알스페이서 주식회사 음향 액츄에이터 및 음향 액츄에이터 시스템
DE102011114471B4 (de) * 2011-09-28 2013-05-08 Eads Deutschland Gmbh Membrananordnung zur Schallerzeugung
TW201318441A (zh) * 2011-10-24 2013-05-01 Chief Land Electronic Co Ltd 能量轉換模組
US9036831B2 (en) 2012-01-10 2015-05-19 Turtle Beach Corporation Amplification system, carrier tracking systems and related methods for use in parametric sound systems
WO2013158298A1 (en) 2012-04-18 2013-10-24 Parametric Sound Corporation Parametric transducers related methods
US8934650B1 (en) 2012-07-03 2015-01-13 Turtle Beach Corporation Low profile parametric transducers and related methods
US9094743B2 (en) 2013-03-15 2015-07-28 Emo Labs, Inc. Acoustic transducers
US8903104B2 (en) 2013-04-16 2014-12-02 Turtle Beach Corporation Video gaming system with ultrasonic speakers
US9332344B2 (en) 2013-06-13 2016-05-03 Turtle Beach Corporation Self-bias emitter circuit
US8988911B2 (en) 2013-06-13 2015-03-24 Turtle Beach Corporation Self-bias emitter circuit
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USD748072S1 (en) 2014-03-14 2016-01-26 Emo Labs, Inc. Sound bar audio speaker
CN107533082A (zh) * 2015-03-12 2018-01-02 株式会社村田制作所 加速度检测装置及其制造方法
RU2754074C2 (ru) 2015-09-14 2021-08-25 Уинг Акустикс Лимитэд Совершенствования аудиопреобразователей или усовершенствования, связанные с ними
WO2018167538A1 (en) 2017-03-15 2018-09-20 Wing Acoustics Limited Improvements in or relating to audio systems
US11137803B2 (en) 2017-03-22 2021-10-05 Wing Acoustics Limited Slim electronic devices and audio transducers incorporated therein
US10672416B2 (en) 2017-10-20 2020-06-02 Board Of Trustees Of The University Of Illinois Causing microphones to detect inaudible sounds and defense against inaudible attacks
US11190881B2 (en) * 2019-06-04 2021-11-30 uBeam Inc. Piezoelectric transducer
JP7123197B2 (ja) * 2021-01-06 2022-08-22 エルジー ディスプレイ カンパニー リミテッド 音響発生器及び音響装置

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US3761956A (en) * 1970-10-01 1973-09-25 Nittan Co Ltd Sound generating device
US4379211A (en) * 1980-10-14 1983-04-05 Telephonics Corporation Arcuately tensioned piezoelectric diaphragm microphone
US4430529A (en) * 1980-12-24 1984-02-07 Murata Manufacturing Co., Ltd. Piezoelectric loudspeaker
JPS5910098A (ja) * 1982-07-07 1984-01-19 Matsushita Electric Ind Co Ltd セラミツク圧電素子を使用した複合型スピ−カ
JPS5932297A (ja) * 1982-08-17 1984-02-21 Nippon Denso Co Ltd 積層圧電素子

Also Published As

Publication number Publication date
US4593160A (en) 1986-06-03
JPS60190100A (ja) 1985-09-27

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term