NZ501959A - Phase of drive signals to areally disposed transducers randomised for incoherent radiation - Google Patents

Phase of drive signals to areally disposed transducers randomised for incoherent radiation

Info

Publication number
NZ501959A
NZ501959A NZ501959A NZ50195998A NZ501959A NZ 501959 A NZ501959 A NZ 501959A NZ 501959 A NZ501959 A NZ 501959A NZ 50195998 A NZ50195998 A NZ 50195998A NZ 501959 A NZ501959 A NZ 501959A
Authority
NZ
New Zealand
Prior art keywords
areally
drive signals
phase
randomised
incoherent radiation
Prior art date
Application number
NZ501959A
Other languages
English (en)
Inventor
Martin Colloms
Neil Harris
Henry Azima
Graham Bank
Original Assignee
New Transducers 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 New Transducers Ltd filed Critical New Transducers Ltd
Publication of NZ501959A publication Critical patent/NZ501959A/xx

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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/12—Circuits for transducers, loudspeakers or microphones for distributing signals to two or more loudspeakers
    • 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
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • 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
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers
    • 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
    • H04R1/005—Details of transducers, loudspeakers or microphones using digitally weighted transducing elements
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2430/00—Signal processing covered by H04R, not provided for in its groups
    • H04R2430/20—Processing of the output signals of the acoustic transducers of an array for obtaining a desired directivity characteristic

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transmitters (AREA)
NZ501959A 1997-08-05 1998-07-30 Phase of drive signals to areally disposed transducers randomised for incoherent radiation NZ501959A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9716412.3A GB9716412D0 (en) 1997-08-05 1997-08-05 Sound radiating devices/systems
PCT/GB1998/002288 WO1999008479A1 (en) 1997-08-05 1998-07-30 Sound radiating devices/systems

Publications (1)

Publication Number Publication Date
NZ501959A true NZ501959A (en) 2000-11-24

Family

ID=10816909

Family Applications (1)

Application Number Title Priority Date Filing Date
NZ501959A NZ501959A (en) 1997-08-05 1998-07-30 Phase of drive signals to areally disposed transducers randomised for incoherent radiation

Country Status (24)

Country Link
EP (1) EP1002445A1 (sh)
JP (1) JP2001513619A (sh)
KR (1) KR20010022624A (sh)
CN (1) CN1266604A (sh)
AR (1) AR013281A1 (sh)
AU (1) AU741154B2 (sh)
BG (1) BG104072A (sh)
BR (1) BR9811836A (sh)
CA (1) CA2295724A1 (sh)
EA (1) EA002176B1 (sh)
GB (1) GB9716412D0 (sh)
HU (1) HUP0101998A2 (sh)
ID (1) ID24975A (sh)
IL (1) IL133985A0 (sh)
MX (1) MXPA00001277A (sh)
NO (1) NO20000588D0 (sh)
NZ (1) NZ501959A (sh)
PL (1) PL338378A1 (sh)
SK (1) SK1632000A3 (sh)
TR (1) TR200000351T2 (sh)
TW (1) TW392415B (sh)
WO (1) WO1999008479A1 (sh)
YU (1) YU5400A (sh)
ZA (1) ZA986927B (sh)

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GB9910220D0 (en) * 1999-04-29 1999-06-30 New Transducers Ltd Loudspeakers
GB9914507D0 (en) * 1999-06-23 1999-08-25 New Transducers Ltd Acoustic device
US6801631B1 (en) * 1999-10-22 2004-10-05 Donald J. North Speaker system with multiple transducers positioned in a plane for optimum acoustic radiation pattern
TW511391B (en) 2000-01-24 2002-11-21 New Transducers Ltd Transducer
US6865277B2 (en) 2000-01-27 2005-03-08 New Transducers Limited Passenger vehicle
US7151837B2 (en) 2000-01-27 2006-12-19 New Transducers Limited Loudspeaker
GB0102864D0 (en) 2001-02-06 2001-03-21 Secr Defence Brit Panel form loudspeaker
GB2375453A (en) * 2001-05-09 2002-11-13 New Transducers Ltd Driving a bending wave loudspeaker diaphragm at a plurality of locations
US7548854B2 (en) 2002-01-31 2009-06-16 Awi Licensing Company Architectural sound enhancement with pre-filtered masking sound
US6983819B2 (en) 2002-04-02 2006-01-10 Awi Licensing Company Entertainment sound panels
JP2005197896A (ja) 2004-01-05 2005-07-21 Yamaha Corp スピーカアレイ用のオーディオ信号供給装置
JP4161906B2 (ja) 2004-01-07 2008-10-08 ヤマハ株式会社 スピーカ装置
US10848118B2 (en) 2004-08-10 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US11431312B2 (en) 2004-08-10 2022-08-30 Bongiovi Acoustics Llc System and method for digital signal processing
US10158337B2 (en) 2004-08-10 2018-12-18 Bongiovi Acoustics Llc System and method for digital signal processing
US8284955B2 (en) 2006-02-07 2012-10-09 Bongiovi Acoustics Llc System and method for digital signal processing
JP4124182B2 (ja) * 2004-08-27 2008-07-23 ヤマハ株式会社 アレイスピーカ装置
JP4718161B2 (ja) * 2004-11-12 2011-07-06 株式会社竹中工務店 騒音低減装置
US11202161B2 (en) 2006-02-07 2021-12-14 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
US9615189B2 (en) 2014-08-08 2017-04-04 Bongiovi Acoustics Llc Artificial ear apparatus and associated methods for generating a head related audio transfer function
US10701505B2 (en) 2006-02-07 2020-06-30 Bongiovi Acoustics Llc. System, method, and apparatus for generating and digitally processing a head related audio transfer function
US10069471B2 (en) 2006-02-07 2018-09-04 Bongiovi Acoustics Llc System and method for digital signal processing
US10848867B2 (en) 2006-02-07 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
US7995778B2 (en) * 2006-08-04 2011-08-09 Bose Corporation Acoustic transducer array signal processing
SG148061A1 (en) * 2007-05-25 2008-12-31 Sony Corp An ultrasonic transducer array and a method for making a transducer array
EP2846557B1 (en) * 2007-11-21 2019-04-10 Audio Pixels Ltd. Improved speaker apparatus
US8009838B2 (en) * 2008-02-22 2011-08-30 National Taiwan University Electrostatic loudspeaker array
DK2545715T3 (da) 2010-03-11 2014-09-01 Audio Pixels Ltd Elektrostatiske parallelle pladeaktuatorer, hvis bevægelige elementer alene drives ved elektrostatisk kraft, og nyttige fremgangsmåder i forbindelse dermed
CN103180897B (zh) * 2010-10-21 2016-11-09 3D声学控股有限公司 声音漫射发生器
JP5944403B2 (ja) * 2011-10-21 2016-07-05 パナソニック インテレクチュアル プロパティ コーポレーション オブ アメリカＰａｎａｓｏｎｉｃ Ｉｎｔｅｌｌｅｃｔｕａｌ Ｐｒｏｐｅｒｔｙ Ｃｏｒｐｏｒａｔｉｏｎ ｏｆ Ａｍｅｒｉｃａ 音響レンダリング装置および音響レンダリング方法
US9883318B2 (en) 2013-06-12 2018-01-30 Bongiovi Acoustics Llc System and method for stereo field enhancement in two-channel audio systems
US9264004B2 (en) 2013-06-12 2016-02-16 Bongiovi Acoustics Llc System and method for narrow bandwidth digital signal processing
US9906858B2 (en) 2013-10-22 2018-02-27 Bongiovi Acoustics Llc System and method for digital signal processing
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
US9615813B2 (en) 2014-04-16 2017-04-11 Bongiovi Acoustics Llc. Device for wide-band auscultation
US10639000B2 (en) 2014-04-16 2020-05-05 Bongiovi Acoustics Llc Device for wide-band auscultation
US9564146B2 (en) 2014-08-01 2017-02-07 Bongiovi Acoustics Llc System and method for digital signal processing in deep diving environment
JP6541122B2 (ja) * 2015-01-23 2019-07-10 学校法人成蹊学園 局所音場を生成するスピーカーシステムおよび方法
US9638672B2 (en) 2015-03-06 2017-05-02 Bongiovi Acoustics Llc System and method for acquiring acoustic information from a resonating body
CN104792400B (zh) * 2015-04-09 2018-04-20 中航航空电子有限公司 一种水听器线阵列及其布放方法
US10845877B2 (en) 2015-04-27 2020-11-24 Samsung Electronics Co., Ltd. Apparatus and method of forming localized vibration field, and method of disposing exciters
JP2018537910A (ja) 2015-11-16 2018-12-20 ボンジョビ アコースティックス リミテッド ライアビリティー カンパニー 表面音響変換器
US9621994B1 (en) 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
CN112236812A (zh) 2018-04-11 2021-01-15 邦吉欧维声学有限公司 音频增强听力保护系统
US10959035B2 (en) 2018-08-02 2021-03-23 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
CN110460937B (zh) * 2019-08-23 2021-01-26 深圳市神尔科技股份有限公司 聚焦型扬声器
KR102664499B1 (ko) * 2023-06-29 2024-05-08 김현집 능동형 지향성 스피커 및 이를 사용하는 횡단보도 시스템

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JPH0541897A (ja) * 1991-08-07 1993-02-19 Pioneer Electron Corp スピーカ装置およびその指向性制御方法
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DE4343807A1 (de) * 1993-12-22 1995-06-29 Guenther Nubert Elektronic Gmb Verfahren und Vorrichtung zum Unwandeln eines elektrischen in ein akustisches Signal
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FR2736499B1 (fr) * 1995-07-03 1997-09-12 France Telecom Procede de diffusion d'un son avec une directivite donnee

Also Published As

Publication number Publication date
AR013281A1 (es) 2000-12-13
KR20010022624A (ko) 2001-03-26
TR200000351T2 (tr) 2000-05-22
AU741154B2 (en) 2001-11-22
CN1266604A (zh) 2000-09-13
NO20000588L (no) 2000-02-04
ZA986927B (en) 1999-02-08
BG104072A (bg) 2000-08-31
YU5400A (sh) 2002-03-18
MXPA00001277A (es) 2004-04-05
EP1002445A1 (en) 2000-05-24
NO20000588D0 (no) 2000-02-04
TW392415B (en) 2000-06-01
AU8551998A (en) 1999-03-01
BR9811836A (pt) 2000-08-15
JP2001513619A (ja) 2001-09-04
SK1632000A3 (en) 2000-09-12
GB9716412D0 (en) 1997-10-08
EA002176B1 (ru) 2002-02-28
ID24975A (id) 2000-08-31
CA2295724A1 (en) 1999-02-18
EA200000195A1 (ru) 2000-10-30
HUP0101998A2 (hu) 2001-09-28
WO1999008479A1 (en) 1999-02-18
IL133985A0 (en) 2001-04-30
PL338378A1 (en) 2000-10-23

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