EP1284586A3 - Method and system for directional sound generation - Google Patents

Method and system for directional sound generation Download PDF

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Publication number
EP1284586A3
EP1284586A3 EP02017268A EP02017268A EP1284586A3 EP 1284586 A3 EP1284586 A3 EP 1284586A3 EP 02017268 A EP02017268 A EP 02017268A EP 02017268 A EP02017268 A EP 02017268A EP 1284586 A3 EP1284586 A3 EP 1284586A3
Authority
EP
European Patent Office
Prior art keywords
reflector
sound generation
directional sound
carrier signal
sound
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
EP02017268A
Other languages
German (de)
French (fr)
Other versions
EP1284586A2 (en
EP1284586B1 (en
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
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Filing date
Publication date
Application filed by DaimlerChrysler AG filed Critical DaimlerChrysler AG
Publication of EP1284586A2 publication Critical patent/EP1284586A2/en
Publication of EP1284586A3 publication Critical patent/EP1284586A3/en
Application granted granted Critical
Publication of EP1284586B1 publication Critical patent/EP1284586B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • 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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors
    • 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)
  • Multimedia (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Stereophonic Arrangements (AREA)

Abstract

Beschrieben wird ein Verfahren und eine Vorrichtung zur Erzeugung eines gerichteten Audio-Schalls (3) auf der Basis eines amplitudenmodulierten Ultraschall-Trägersignals (2) hoher Intensität. Dabei wird erfindungsgemäß der von einem Ultraschallsender (1) abgestrahlte Schall an einem Reflektor (5) in eine neue Richtung abgelenkt. Durch entsprechende Formgebung der Reflektor-Oberfläche wird dabei der Audio-Schall (3) fokussiert. Der Pegel des Ultraschall-Trägersignals (2) kann durch entsprechend absorbierende Beschichtung des Reflektors (5) gedämpft werden, so dass im Idealfall den Hörer (4) nur das akustische Audio-Signal (3) erreicht.

Figure 00000001
Disclosed is a method and apparatus for producing directional audio sound (3) based on an amplitude-modulated ultrasound carrier signal (2) of high intensity. In this case, according to the invention, the sound emitted by an ultrasonic transmitter (1) is deflected at a reflector (5) in a new direction. By appropriate shaping of the reflector surface while the audio sound (3) is focused. The level of the ultrasonic carrier signal (2) can be attenuated by appropriately absorbing coating of the reflector (5), so that in the ideal case the handset (4) only reaches the acoustic audio signal (3).
Figure 00000001
EP02017268A 2001-08-18 2002-08-01 Method and system for directional sound generation Expired - Lifetime EP1284586B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10140646A DE10140646C2 (en) 2001-08-18 2001-08-18 Method and device for directional audio irradiation
DE10140646 2001-08-18

Publications (3)

Publication Number Publication Date
EP1284586A2 EP1284586A2 (en) 2003-02-19
EP1284586A3 true EP1284586A3 (en) 2004-08-04
EP1284586B1 EP1284586B1 (en) 2006-03-15

Family

ID=7695932

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02017268A Expired - Lifetime EP1284586B1 (en) 2001-08-18 2002-08-01 Method and system for directional sound generation

Country Status (4)

Country Link
US (1) US20030035552A1 (en)
EP (1) EP1284586B1 (en)
JP (1) JP2003163986A (en)
DE (2) DE10140646C2 (en)

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US6793177B2 (en) 2002-11-04 2004-09-21 The Bonutti 2003 Trust-A Active drag and thrust modulation system and method
US7269452B2 (en) * 2003-04-15 2007-09-11 Ipventure, Inc. Directional wireless communication systems
US8849185B2 (en) 2003-04-15 2014-09-30 Ipventure, Inc. Hybrid audio delivery system and method therefor
US6939012B2 (en) * 2003-06-02 2005-09-06 Eastman Kodak Company Laser image projector
US9190069B2 (en) * 2005-11-22 2015-11-17 2236008 Ontario Inc. In-situ voice reinforcement system
US20090156249A1 (en) * 2007-12-12 2009-06-18 John Ruckart Devices and computer readable media for use with devices having audio output within a spatially controlled output beam
RU2550769C2 (en) * 2010-07-30 2015-05-10 Фраунхофер-Гезелльшафт Цур Фердерунг Дер Ангевандтен Форшунг Е.Ф. Headrest speaker arrangement
DE102012000745A1 (en) * 2011-04-07 2012-10-11 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. Playback device for sound and picture
US20120281858A1 (en) * 2011-05-03 2012-11-08 Menachem Margaliot METHOD AND APPARATUS FOR TRANSMISSION OF SOUND WAVES WITH HIGH LOCALIZATION of SOUND PRODUCTION
JP2012239023A (en) * 2011-05-11 2012-12-06 Denso Corp Parametric speaker
PL2737722T3 (en) * 2011-07-28 2016-09-30 Vehicle with side wall speakers
JP5787173B2 (en) * 2012-02-24 2015-09-30 株式会社デンソー Vehicle sound output device
DE102013020865A1 (en) * 2013-12-11 2015-06-11 Audi Ag Device for reflection of at least one acoustic and / or optical signal output device output acoustic and / or optical signals in an interior of a motor vehicle
CN105992099A (en) * 2015-02-03 2016-10-05 中兴通讯股份有限公司 Terminal and method for terminal to broadcast audio signals directionally
US9967672B2 (en) 2015-11-11 2018-05-08 Clearmotion Acquisition I Llc Audio system
US10403082B2 (en) * 2016-04-12 2019-09-03 Igt Canada Solutions Ulc Systems and methods for providing private sound from a wagering gaming machine via modulated ultrasound
EP3462751B1 (en) * 2017-09-28 2020-12-23 Vestel Elektronik Sanayi ve Ticaret A.S. Speaker assembly
DE102018001971A1 (en) 2018-03-12 2018-09-20 Daimler Ag Method and vehicle for targeted information transfer in a predetermined direction outside a vehicle
DE102018209962A1 (en) * 2018-06-20 2019-12-24 Faurecia Innenraum Systeme Gmbh Private audio system for a 3D-like listening experience for vehicle occupants and a method for its generation
US10645487B2 (en) * 2018-07-23 2020-05-05 Warped Dynamics, LLC Vertically configured parametric transducer headphones
DE102018214181A1 (en) * 2018-08-22 2020-02-27 Audi Ag Motor vehicle with an acoustically adaptive passenger cabin and method for operating a motor vehicle with an acoustically adaptive passenger cabin
CN113316062B (en) * 2021-05-26 2024-02-02 成都西科微波通讯有限公司 Omnidirectional audio modulation method based on transducer annular array

Citations (8)

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Publication number Priority date Publication date Assignee Title
US4823908A (en) * 1984-08-28 1989-04-25 Matsushita Electric Industrial Co., Ltd. Directional loudspeaker system
US4884275A (en) * 1988-10-24 1989-11-28 Murasa International Laser safety shutoff system
JPH03252299A (en) * 1990-02-28 1991-11-11 Matsushita Electric Works Ltd Ultrasonic wave parametric speaker
US5598380A (en) * 1994-02-08 1997-01-28 Asulab, S.A. Composite wall, notably motor vehicle windshield, including an ultrasonic device for detecting the presence of foreign bodies on one of its faces
JPH1127774A (en) * 1997-07-02 1999-01-29 Mk Seiko Co Ltd Parametric loudspeaker
US5889870A (en) * 1996-07-17 1999-03-30 American Technology Corporation Acoustic heterodyne device and method
EP1061770A2 (en) * 1999-06-14 2000-12-20 Nokia Mobile Phones Ltd. Audio apparatus
US6229899B1 (en) * 1996-07-17 2001-05-08 American Technology Corporation Method and device for developing a virtual speaker distant from the sound source

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DE4230362C2 (en) * 1992-09-11 2001-10-04 Thomson Brandt Gmbh Method for sonicating a partial area and installation for carrying out the method
DE19628849C2 (en) * 1996-07-17 2002-10-17 Eads Deutschland Gmbh Acoustic directional emitter through modulated ultrasound
AU4403600A (en) * 1999-04-30 2001-02-13 Sennheiser Electronic Gmbh And Co. Kg Method for the reproduction of sound waves using ultrasound loudspeakers

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4823908A (en) * 1984-08-28 1989-04-25 Matsushita Electric Industrial Co., Ltd. Directional loudspeaker system
US4884275A (en) * 1988-10-24 1989-11-28 Murasa International Laser safety shutoff system
JPH03252299A (en) * 1990-02-28 1991-11-11 Matsushita Electric Works Ltd Ultrasonic wave parametric speaker
US5598380A (en) * 1994-02-08 1997-01-28 Asulab, S.A. Composite wall, notably motor vehicle windshield, including an ultrasonic device for detecting the presence of foreign bodies on one of its faces
US5889870A (en) * 1996-07-17 1999-03-30 American Technology Corporation Acoustic heterodyne device and method
US6229899B1 (en) * 1996-07-17 2001-05-08 American Technology Corporation Method and device for developing a virtual speaker distant from the sound source
JPH1127774A (en) * 1997-07-02 1999-01-29 Mk Seiko Co Ltd Parametric loudspeaker
EP1061770A2 (en) * 1999-06-14 2000-12-20 Nokia Mobile Phones Ltd. Audio apparatus

Non-Patent Citations (3)

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Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 052 (E - 1164) 10 February 1992 (1992-02-10) *
PATENT ABSTRACTS OF JAPAN vol. 1999, no. 04 30 April 1999 (1999-04-30) *
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
US20030035552A1 (en) 2003-02-20
DE10140646C2 (en) 2003-11-20
DE50206061D1 (en) 2006-05-11
JP2003163986A (en) 2003-06-06
EP1284586A2 (en) 2003-02-19
EP1284586B1 (en) 2006-03-15
DE10140646A1 (en) 2003-03-13

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