ATE328455T1 - Ultraschallbasiertes parametrisches lautsprechersystem - Google Patents

Ultraschallbasiertes parametrisches lautsprechersystem

Info

Publication number
ATE328455T1
ATE328455T1 AT02007545T AT02007545T ATE328455T1 AT E328455 T1 ATE328455 T1 AT E328455T1 AT 02007545 T AT02007545 T AT 02007545T AT 02007545 T AT02007545 T AT 02007545T AT E328455 T1 ATE328455 T1 AT E328455T1
Authority
AT
Austria
Prior art keywords
speaker system
modulator
parametric speaker
based parametric
ultrasonic based
Prior art date
Application number
AT02007545T
Other languages
English (en)
Inventor
Guido Kolano
Klaus Dr Linhard
Original Assignee
Daimler Chrysler Ag
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
Priority claimed from DE10117529A external-priority patent/DE10117529B4/de
Application filed by Daimler Chrysler Ag filed Critical Daimler Chrysler Ag
Application granted granted Critical
Publication of ATE328455T1 publication Critical patent/ATE328455T1/de

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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers
    • 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
    • H04R17/10—Resonant transducers, i.e. adapted to produce maximum output at a predetermined frequency
    • 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

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
AT02007545T 2001-04-07 2002-04-03 Ultraschallbasiertes parametrisches lautsprechersystem ATE328455T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE10117529A DE10117529B4 (de) 2001-04-07 2001-04-07 Ultraschallbasiertes parametrisches Lautsprechersystem

Publications (1)

Publication Number Publication Date
ATE328455T1 true ATE328455T1 (de) 2006-06-15

Family

ID=7680859

Family Applications (1)

Application Number Title Priority Date Filing Date
AT02007545T ATE328455T1 (de) 2001-04-07 2002-04-03 Ultraschallbasiertes parametrisches lautsprechersystem

Country Status (5)

Country Link
US (1) US7181025B2 (de)
EP (1) EP1248491B1 (de)
JP (1) JP2002315088A (de)
AT (1) ATE328455T1 (de)
DE (2) DE10117528B4 (de)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10117529B4 (de) * 2001-04-07 2005-04-28 Daimler Chrysler Ag Ultraschallbasiertes parametrisches Lautsprechersystem
WO2005043771A1 (en) * 2003-10-23 2005-05-12 American Technology Corporation Method of adusting linear parameters of a parametric ultrasonic signal to reduce non-linearities in decoupled audio output waves and system including same
JP4371268B2 (ja) 2003-12-18 2009-11-25 シチズンホールディングス株式会社 指向性スピーカーの駆動方法および指向性スピーカー
US20070165892A1 (en) * 2004-06-28 2007-07-19 Koninklijke Philips Electronics, N.V. Wireless audio
JP4124182B2 (ja) * 2004-08-27 2008-07-23 ヤマハ株式会社 アレイスピーカ装置
CN1964219B (zh) * 2005-11-11 2016-01-20 上海贝尔股份有限公司 实现中继的方法和设备
JP4783921B2 (ja) * 2006-03-13 2011-09-28 三菱電機エンジニアリング株式会社 超指向性スピーカー
DE202009017930U1 (de) 2008-03-11 2010-10-07 Merkel, Tobias, Dr. Virtuelles Mikrofon mit fremdmoduliertem Ultraschall
US8976980B2 (en) 2011-03-24 2015-03-10 Texas Instruments Incorporated Modulation of audio signals in a parametric speaker
JP5817182B2 (ja) * 2011-03-31 2015-11-18 日本電気株式会社 スピーカ装置及び電子機器
WO2016032400A1 (en) 2014-08-28 2016-03-03 Nanyang Technological University An amplifier circuit for a parametric transducer and a related audio device
US9780753B2 (en) 2014-11-05 2017-10-03 Turtle Beach Corporation Adaptive equalization for an ultrasonic audio system
CN107864020B (zh) * 2017-11-07 2021-02-19 哈尔滨工程大学 水下小目标单分量声散射回波的变换域提取方法
WO2019212077A1 (ko) * 2018-05-04 2019-11-07 주식회사 제이디솔루션 안정성이 증가된 초지향성 스피커 회로{ultra directional speaker circuit with enhanced stability}

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1951669A (en) * 1931-07-17 1934-03-20 Ramsey George Method and apparatus for producing sound
US2371373A (en) * 1943-06-12 1945-03-13 Rca Corp Balanced frequency modulation system
US3418564A (en) * 1966-04-11 1968-12-24 Varian Associates Field modulated gyromagnetic resonance spectrometer detecting only the fm carrier resonance component
WO1986001670A1 (en) * 1984-08-28 1986-03-13 Matsushita Electric Industrial Co., Ltd. Directional speaker system
JPH02265400A (ja) * 1989-04-05 1990-10-30 Matsushita Electric Works Ltd 拡声器
DE3929243A1 (de) * 1989-09-02 1991-03-07 Rump Elektronik Tech Apparat und verfahren zur verkuerzung der ausklingzeit in ultraschall-impuls-sendeeinrichtungen
US5357578A (en) * 1992-11-24 1994-10-18 Canon Kabushiki Kaisha Acoustic output device, and electronic apparatus using the acoustic output device
US5917776A (en) * 1996-12-31 1999-06-29 Honeywell Inc. Means for reducing minimum sensing distance of an ultrasonic proximity sensor
US6044160A (en) * 1998-01-13 2000-03-28 American Technology Corporation Resonant tuned, ultrasonic electrostatic emitter
US6011855A (en) * 1997-03-17 2000-01-04 American Technology Corporation Piezoelectric film sonic emitter
US6359990B1 (en) * 1997-04-30 2002-03-19 American Technology Corporation Parametric ring emitter
JP4221792B2 (ja) * 1998-01-09 2009-02-12 ソニー株式会社 スピーカ装置及びオーディオ信号送信装置
US6850623B1 (en) * 1999-10-29 2005-02-01 American Technology Corporation Parametric loudspeaker with improved phase characteristics
AU4403600A (en) * 1999-04-30 2001-02-13 Sennheiser Electronic Gmbh And Co. Kg Method for the reproduction of sound waves using ultrasound loudspeakers
DE19931386C2 (de) * 1999-07-07 2003-10-09 Innomar Technologie Gmbh Anordnung zum Empfang von Signalen bei parametrischer Sendung zur Echolotung des Bodens, von Sedimentschichten und von Objekten am und im Boden sowie zur Unterwassernachrichtenübertragung

Also Published As

Publication number Publication date
EP1248491A3 (de) 2004-01-07
EP1248491B1 (de) 2006-05-31
US20020172375A1 (en) 2002-11-21
DE10117528B4 (de) 2004-04-01
DE10117528A1 (de) 2003-02-06
DE50206958D1 (de) 2006-07-06
EP1248491A2 (de) 2002-10-09
US7181025B2 (en) 2007-02-20
JP2002315088A (ja) 2002-10-25

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Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee