EP1484944A3 - Verfahren zur Wiedergabe von Audioschall mit Ultraschall-Lautsprechern - Google Patents

Verfahren zur Wiedergabe von Audioschall mit Ultraschall-Lautsprechern Download PDF

Info

Publication number
EP1484944A3
EP1484944A3 EP04021692A EP04021692A EP1484944A3 EP 1484944 A3 EP1484944 A3 EP 1484944A3 EP 04021692 A EP04021692 A EP 04021692A EP 04021692 A EP04021692 A EP 04021692A EP 1484944 A3 EP1484944 A3 EP 1484944A3
Authority
EP
European Patent Office
Prior art keywords
ultrasonic
signal
audio signal
reproducing
loudspeaker
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.)
Withdrawn
Application number
EP04021692A
Other languages
English (en)
French (fr)
Other versions
EP1484944A2 (de
Inventor
Wolfgang Dr. Niehoff
Vladimir Dr. Gorelik
Oliver Dr. Gelhard
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.)
Sennheiser Electronic GmbH and Co KG
Original Assignee
Sennheiser Electronic GmbH and Co KG
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 Sennheiser Electronic GmbH and Co KG filed Critical Sennheiser Electronic GmbH and Co KG
Publication of EP1484944A2 publication Critical patent/EP1484944A2/de
Publication of EP1484944A3 publication Critical patent/EP1484944A3/de
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K15/00—Acoustics not otherwise provided for
    • G10K15/02—Synthesis of acoustic waves
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R27/00—Public address systems
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2499/00—Aspects covered by H04R or H04S not otherwise provided for in their subgroups
    • H04R2499/10—General applications
    • H04R2499/13—Acoustic transducers and sound field adaptation in vehicles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

Die Erfindung betrifft ein Verfahren zur Wiedergabe von Audioschall mit Ultraschall-Lautsprechern sowie eine Konstruktion der Ultraschall-Lautsprecher und ihrer Anwendung.
Verfahren und Vorrichtung zur Wiedergabe von Audioschall mittels einer Ultraschall erzeugenden Einrichtung, wobei das wiederzugebene Audiosignal durch eine Seitenband-Amplitudenmodulation mit einem Trägersignal im Ultraschallfrequenzbereich verknüpft wird, wobei Mittel vorgesehen sind, das modulierte Ultraschallsignal einer Dynamik-Fehler-Kompensation zu unterwerfen und das kompensierte Ultraschallsignal gegebenenfalls einer Frequenzganglinearisierung unterzogen wird und dann einem Ultraschall-Wandler (Lautsprecher) zugeführt wird, wobei Mittel vorgesehen sind, die Amplitude des Ultraschallträgersignals zu reduzieren (Trägerreduktion).
EP04021692A 1999-04-30 2000-05-02 Verfahren zur Wiedergabe von Audioschall mit Ultraschall-Lautsprechern Withdrawn EP1484944A3 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19919980 1999-04-30
DE19919980 1999-04-30
EP00925256A EP1175812B1 (de) 1999-04-30 2000-05-02 Verfahren zur wiedergabe von audioschall mit ultraschall-lautsprechern

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP00925256A Division EP1175812B1 (de) 1999-04-30 2000-05-02 Verfahren zur wiedergabe von audioschall mit ultraschall-lautsprechern

Publications (2)

Publication Number Publication Date
EP1484944A2 EP1484944A2 (de) 2004-12-08
EP1484944A3 true EP1484944A3 (de) 2004-12-15

Family

ID=7906594

Family Applications (2)

Application Number Title Priority Date Filing Date
EP04021692A Withdrawn EP1484944A3 (de) 1999-04-30 2000-05-02 Verfahren zur Wiedergabe von Audioschall mit Ultraschall-Lautsprechern
EP00925256A Expired - Lifetime EP1175812B1 (de) 1999-04-30 2000-05-02 Verfahren zur wiedergabe von audioschall mit ultraschall-lautsprechern

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP00925256A Expired - Lifetime EP1175812B1 (de) 1999-04-30 2000-05-02 Verfahren zur wiedergabe von audioschall mit ultraschall-lautsprechern

Country Status (6)

Country Link
US (1) US20050207590A1 (de)
EP (2) EP1484944A3 (de)
AT (1) ATE276636T1 (de)
AU (1) AU4403600A (de)
DE (1) DE50007789D1 (de)
WO (1) WO2001008449A1 (de)

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6577738B2 (en) 1996-07-17 2003-06-10 American Technology Corporation Parametric virtual speaker and surround-sound system
JP2000050387A (ja) 1998-07-16 2000-02-18 Massachusetts Inst Of Technol <Mit> パラメトリックオ―ディオシステム
US7391872B2 (en) 1999-04-27 2008-06-24 Frank Joseph Pompei Parametric audio system
JP5306565B2 (ja) 1999-09-29 2013-10-02 ヤマハ株式会社 音響指向方法および装置
US6934402B2 (en) 2001-01-26 2005-08-23 American Technology Corporation Planar-magnetic speakers with secondary magnetic structure
KR100922910B1 (ko) * 2001-03-27 2009-10-22 캠브리지 메카트로닉스 리미티드 사운드 필드를 생성하는 방법 및 장치
DE10117529B4 (de) * 2001-04-07 2005-04-28 Daimler Chrysler Ag Ultraschallbasiertes parametrisches Lautsprechersystem
DE10117528B4 (de) * 2001-04-07 2004-04-01 Daimlerchrysler Ag Ultraschallbasiertes parametrisches Mehrwege-Lautsprechersystem
DE10140646C2 (de) * 2001-08-18 2003-11-20 Daimler Chrysler Ag Verfahren und Vorrichtung zur gerichteten Audio-Beschallung
EP1466407A4 (de) 2002-01-18 2009-11-18 American Tech Corp Modulator/verstärker
GB0203895D0 (en) * 2002-02-19 2002-04-03 1 Ltd Compact surround-sound system
US20040114770A1 (en) 2002-10-30 2004-06-17 Pompei Frank Joseph Directed acoustic sound system
US6793177B2 (en) 2002-11-04 2004-09-21 The Bonutti 2003 Trust-A Active drag and thrust modulation system and method
DE10255794B3 (de) * 2002-11-28 2004-09-02 Daimlerchrysler Ag Akustische Schallführung im Fahrzeug
GB0301093D0 (en) * 2003-01-17 2003-02-19 1 Ltd Set-up method for array-type sound systems
GB0304126D0 (en) * 2003-02-24 2003-03-26 1 Ltd Sound beam loudspeaker system
GB0321676D0 (en) * 2003-09-16 2003-10-15 1 Ltd Digital loudspeaker
KR200355341Y1 (ko) * 2004-04-02 2004-07-06 주식회사 솔리토닉스 초음파 스피커 시스템을 구비하는 이동통신 단말기용 보드
SG115665A1 (en) 2004-04-06 2005-10-28 Sony Corp Method and apparatus to generate an audio beam with high quality
GB0415625D0 (en) * 2004-07-13 2004-08-18 1 Ltd Miniature surround-sound loudspeaker
GB0415626D0 (en) * 2004-07-13 2004-08-18 1 Ltd Directional microphone
WO2006016156A1 (en) * 2004-08-10 2006-02-16 1...Limited Non-planar transducer arrays
GB0514361D0 (en) * 2005-07-12 2005-08-17 1 Ltd Compact surround sound effects system
DE102005058826A1 (de) * 2005-12-09 2007-06-14 Robert Bosch Gmbh Lautsprechersystem
US8116482B2 (en) * 2006-08-28 2012-02-14 Southwest Research Institute Low noise microphone for use in windy environments and/or in the presence of engine noise
EP2109328B1 (de) 2008-04-09 2014-10-29 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Vorrichtung zur Verarbeitung eines Audiosignals
WO2010140104A1 (en) * 2009-06-05 2010-12-09 Koninklijke Philips Electronics N.V. A surround sound system and method therefor
US8340435B2 (en) 2009-06-11 2012-12-25 California Institute Of Technology Method and system for object recognition search
JP4752963B2 (ja) * 2009-08-05 2011-08-17 株式会社デンソー 車両存在報知装置
WO2011159724A2 (en) 2010-06-14 2011-12-22 Norris Elwood G Improved parametric signal processing and emitter systems and related methods
DE102012000745A1 (de) * 2011-04-07 2012-10-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Wiedergabegerät für Ton und Bild
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
ES2375857B1 (es) * 2012-01-13 2012-09-12 Universitat Ramón Llull Fundació Privada Fuente sonora omnidireccional y procedimiento para generar sonidos omnidireccionales.
US8958580B2 (en) 2012-04-18 2015-02-17 Turtle Beach Corporation Parametric transducers and related methods
US8934650B1 (en) 2012-07-03 2015-01-13 Turtle Beach Corporation Low profile parametric transducers and related methods
CN104620601A (zh) * 2012-09-14 2015-05-13 Nec卡西欧移动通信株式会社 扬声器设备和电子装置
WO2014127126A1 (en) * 2013-02-14 2014-08-21 New York University Handphone
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
US9525953B2 (en) * 2013-10-03 2016-12-20 Russell Louis Storms, Sr. Method and apparatus for transit system annunciators
US9510089B2 (en) 2013-10-21 2016-11-29 Turtle Beach Corporation Dynamic location determination for a directionally controllable parametric emitter
WO2015061228A1 (en) * 2013-10-21 2015-04-30 Turtle Beach Corporation Improved parametric transducer with adaptive carrier amplitude
US20150110286A1 (en) * 2013-10-21 2015-04-23 Turtle Beach Corporation Directionally controllable parametric emitter
US9779593B2 (en) 2014-08-15 2017-10-03 Elwha Llc Systems and methods for positioning a user of a hands-free intercommunication system
US9131068B2 (en) 2014-02-06 2015-09-08 Elwha Llc Systems and methods for automatically connecting a user of a hands-free intercommunication system
US20160118036A1 (en) 2014-10-23 2016-04-28 Elwha Llc Systems and methods for positioning a user of a hands-free intercommunication system
US9565284B2 (en) 2014-04-16 2017-02-07 Elwha Llc Systems and methods for automatically connecting a user of a hands-free intercommunication system
AT515579A1 (de) * 2014-03-04 2015-10-15 Siemens Ag Oesterreich Beschallungssystem
TWI544807B (zh) * 2014-07-18 2016-08-01 緯創資通股份有限公司 具喇叭模組的顯示裝置
DE102017211923A1 (de) * 2017-07-12 2019-02-07 Zf Friedrichshafen Ag Lokalisierte Informationsausgabe
CN108777139A (zh) * 2018-04-08 2018-11-09 杭州电子科技大学 一种声音定向传播的闹钟
US10887368B2 (en) * 2019-02-25 2021-01-05 International Business Machines Corporation Monitoring quality of a conference call for muted participants thereto
CN113573207B (zh) * 2020-04-29 2022-09-23 维沃移动通信有限公司 电子设备
US20220130369A1 (en) * 2020-10-28 2022-04-28 Gulfstream Aerospace Corporation Quiet flight deck communication using ultrasonic phased array
US11256878B1 (en) * 2020-12-04 2022-02-22 Zaps Labs, Inc. Directed sound transmission systems and methods
CN112995840A (zh) * 2021-02-19 2021-06-18 歌尔科技有限公司 基于超声波的传声方法、装置、设备及可读存储介质

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2841680A1 (de) * 1978-09-25 1980-04-03 Sennheiser Electronic Drahtloses uebertragungsverfahren fuer tonsignale
US4376916A (en) * 1980-05-29 1983-03-15 Cbs Inc. Signal compression and expansion system
US5095509A (en) * 1990-08-31 1992-03-10 Volk William D Audio reproduction utilizing a bilevel switching speaker drive signal
WO1998049868A1 (en) * 1997-04-30 1998-11-05 American Technology Corporation Light enhanced bullhorn

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5159703A (en) * 1989-12-28 1992-10-27 Lowery Oliver M Silent subliminal presentation system
DE19628849C2 (de) * 1996-07-17 2002-10-17 Eads Deutschland Gmbh Akustischer Richtstrahler durch modulierten Ultraschall

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2841680A1 (de) * 1978-09-25 1980-04-03 Sennheiser Electronic Drahtloses uebertragungsverfahren fuer tonsignale
US4376916A (en) * 1980-05-29 1983-03-15 Cbs Inc. Signal compression and expansion system
US5095509A (en) * 1990-08-31 1992-03-10 Volk William D Audio reproduction utilizing a bilevel switching speaker drive signal
WO1998049868A1 (en) * 1997-04-30 1998-11-05 American Technology Corporation Light enhanced bullhorn

Also Published As

Publication number Publication date
EP1484944A2 (de) 2004-12-08
ATE276636T1 (de) 2004-10-15
EP1175812A1 (de) 2002-01-30
EP1175812B1 (de) 2004-09-15
DE50007789D1 (de) 2004-10-21
AU4403600A (en) 2001-02-13
US20050207590A1 (en) 2005-09-22
WO2001008449A1 (de) 2001-02-01

Similar Documents

Publication Publication Date Title
EP1484944A3 (de) Verfahren zur Wiedergabe von Audioschall mit Ultraschall-Lautsprechern
CA2185649A1 (en) Frequency transpositional hearing aid with digital and single sideband modulation
AU1304800A (en) Method and apparatus for generating a linearly modulated signal using polar modulation
JP2005516516A5 (de)
CA2331111A1 (en) Anti-copying methods and devices for digital information signals
US7596228B2 (en) Parametric array modulation and processing method
KR101329308B1 (ko) 오디오 신호의 저주파 성분 보강 방법 및 그 장치, 오디오신호의 기본 주파수 계산 방법 및 그 장치
KR910001643A (ko) 자기기록 재생장치
US20030039370A1 (en) Method and apparatus for eliminating audio feedback
CN1030234C (zh) 录音信号保真慢放方法
WO2004034079A3 (en) Inspection system calibration methods
JP3857154B2 (ja) パルス符号変調信号再生装置
MY126954A (en) Record carrier carrying a stereo signal and a data signal.
JP3562163B2 (ja) Ｔｖ音声再生装置
CN101562032B (zh) 防护媒体内容被未经授权地复制的方法和设备
JPH09275354A (ja) ディスク再生装置
SU1644212A1 (ru) Способ записи-воспроизведени аналоговых сигналов на движущийс носитель и устройство дл его осуществлени
JP2000224687A (ja) 信号送波装置及び記録媒体
KR970063973A (ko) 시더블유(cw)신호의 재생장치
JP2003348697A (ja) アルファ波の誘発法およびアルファ波の誘発法用記録媒体
SU378938A1 (ru) Способ воспроизведения звуковой информации
KR200156785Y1 (ko) 비디오 카세트 레코더에서의 오디오 신호 기록 장치
KR960005551A (ko) 재생신호 무선전송장치
JPS58142608A (ja) 可聴周波数帯再生方式およびその装置
JPS62281524A (ja) Ｆｍトランスミツタ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AC Divisional application: reference to earlier application

Ref document number: 1175812

Country of ref document: EP

Kind code of ref document: P

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 20050615

AKX Designation fees paid

Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

RIN1 Information on inventor provided before grant (corrected)

Inventor name: GELHARD, OLIVER, DR.

Inventor name: NIEHOFF, WOLFGANG, DR.

Inventor name: GORELIK, VLADIMIR, DR.

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20101201