EP1248492A3 - Ultraschallbasiertes parametrisches Mehrwegelautsprechersystem - Google Patents

Ultraschallbasiertes parametrisches Mehrwegelautsprechersystem Download PDF

Info

Publication number
EP1248492A3
EP1248492A3 EP02007546A EP02007546A EP1248492A3 EP 1248492 A3 EP1248492 A3 EP 1248492A3 EP 02007546 A EP02007546 A EP 02007546A EP 02007546 A EP02007546 A EP 02007546A EP 1248492 A3 EP1248492 A3 EP 1248492A3
Authority
EP
European Patent Office
Prior art keywords
speaker system
paths
frequencies
modulators
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.)
Granted
Application number
EP02007546A
Other languages
English (en)
French (fr)
Other versions
EP1248492B1 (de
EP1248492A2 (de
Inventor
Guido Kolano
Klaus Dr. Linhard
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.)
Mercedes Benz Group AG
Original Assignee
DaimlerChrysler 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 DE10117528A external-priority patent/DE10117528B4/de
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1248492A2 publication Critical patent/EP1248492A2/de
Publication of EP1248492A3 publication Critical patent/EP1248492A3/de
Application granted granted Critical
Publication of EP1248492B1 publication Critical patent/EP1248492B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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; ELECTRIC HEARING AIDS; 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)

Abstract

Es wird eine Anordnung von parametrischen Lautsprechern beschrieben, bei welcher die Gesamtheit der Wandler in Gruppen eingeteilt wird, wobei jede Gruppe von mindestens einem ihr zugeordneten Modulator angesteuert wird, so dass sich ein parametrisches Mehrwege-Lautsprechersystems ergibt. Hierdurch wird es ermöglicht, dass jedem der Wege die Wandler im optimalen Resonanzbereich arbeiten.
EP02007546A 2001-04-07 2002-04-03 Ultraschallbasiertes parametrisches Mehrwegelautsprechersystem Expired - Lifetime EP1248492B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10117528A DE10117528B4 (de) 2001-04-07 2001-04-07 Ultraschallbasiertes parametrisches Mehrwege-Lautsprechersystem
DE10117528 2001-04-07

Publications (3)

Publication Number Publication Date
EP1248492A2 EP1248492A2 (de) 2002-10-09
EP1248492A3 true EP1248492A3 (de) 2004-01-07
EP1248492B1 EP1248492B1 (de) 2006-05-31

Family

ID=7680858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02007546A Expired - Lifetime EP1248492B1 (de) 2001-04-07 2002-04-03 Ultraschallbasiertes parametrisches Mehrwegelautsprechersystem

Country Status (5)

Country Link
US (2) US20020146138A1 (de)
EP (1) EP1248492B1 (de)
JP (1) JP2002354575A (de)
AT (1) ATE328456T1 (de)
DE (2) DE10117529B4 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SG115665A1 (en) * 2004-04-06 2005-10-28 Sony Corp Method and apparatus to generate an audio beam with high quality
JP2010507932A (ja) * 2006-10-23 2010-03-11 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 超音波治療のための対称的かつ選択的に指向されたランダムアレイ
DE102009010055A1 (de) 2008-03-11 2009-10-01 Merkel, Tobias, Dr. Virtuelles Mikrofon mit fremdmoduliertem Ultraschall
JP5444670B2 (ja) * 2008-09-18 2014-03-19 パナソニック株式会社 音響再生装置
WO2012030292A1 (en) 2010-09-03 2012-03-08 Actiwave Ab A speaker system which comprises speaker driver groups
JP2012153303A (ja) * 2011-01-27 2012-08-16 Denso Corp 車両接近通報装置
EP2897379A4 (de) * 2012-09-14 2016-04-27 Nec Corp Lautsprechervorrichtung und elektronische ausrüstung damit
JP2015159404A (ja) * 2014-02-24 2015-09-03 パイオニア株式会社 パラメトリックスピーカおよびパラメトリックスピーカシステム
US10134416B2 (en) * 2015-05-11 2018-11-20 Microsoft Technology Licensing, Llc Privacy-preserving energy-efficient speakers for personal sound
CN109328374B (zh) * 2016-07-21 2021-12-03 松下知识产权经营株式会社 声响再生装置以及声响再生系统
JP2019041409A (ja) * 2018-11-13 2019-03-14 パイオニア株式会社 パラメトリックスピーカ
JP7021296B2 (ja) * 2020-06-23 2022-02-16 パイオニア株式会社 パラメトリックスピーカ

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02265400A (ja) * 1989-04-05 1990-10-30 Matsushita Electric Works Ltd 拡声器
WO2001008449A1 (de) * 1999-04-30 2001-02-01 Sennheiser Electronic Gmbh & Co. Kg Verfahren zur wiedergabe von audioschall mit ultraschall-lautsprechern
WO2001023104A2 (en) * 1999-09-29 2001-04-05 1...Limited Method and apparatus to direct sound using an array of output transducers

Family Cites Families (5)

* 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
WO1986001670A1 (en) * 1984-08-28 1986-03-13 Matsushita Electric Industrial Co., Ltd. Directional speaker system
US6011855A (en) * 1997-03-17 2000-01-04 American Technology Corporation Piezoelectric film sonic 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
DE10117528B4 (de) * 2001-04-07 2004-04-01 Daimlerchrysler Ag Ultraschallbasiertes parametrisches Mehrwege-Lautsprechersystem

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02265400A (ja) * 1989-04-05 1990-10-30 Matsushita Electric Works Ltd 拡声器
WO2001008449A1 (de) * 1999-04-30 2001-02-01 Sennheiser Electronic Gmbh & Co. Kg Verfahren zur wiedergabe von audioschall mit ultraschall-lautsprechern
WO2001023104A2 (en) * 1999-09-29 2001-04-05 1...Limited Method and apparatus to direct sound using an array of output transducers

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 015, no. 018 (E - 1023) 16 January 1991 (1991-01-16) *
YONEYAMA M ET AL: "THE AUDIO SPOTLIGHT: AN APPLICATION OF NONLINEAR INTERACTION OF SOUND WAVES TO A NEW TYPE OF LOUDSPEAKER DESIGN", JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA, AMERICAN INSTITUTE OF PHYSICS. NEW YORK, US, vol. 73, no. 5, May 1983 (1983-05-01), pages 1532 - 1536, XP000762272, ISSN: 0001-4966 *

Also Published As

Publication number Publication date
EP1248492B1 (de) 2006-05-31
EP1248492A2 (de) 2002-10-09
ATE328456T1 (de) 2006-06-15
US20020146138A1 (en) 2002-10-10
DE10117529B4 (de) 2005-04-28
JP2002354575A (ja) 2002-12-06
US20060093154A1 (en) 2006-05-04
DE10117529A1 (de) 2002-11-07
DE50206959D1 (de) 2006-07-06

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