WO2007034344A3 - Band- pass transducer system with long port - Google Patents

Band- pass transducer system with long port Download PDF

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Publication number
WO2007034344A3
WO2007034344A3 PCT/IB2006/053107 IB2006053107W WO2007034344A3 WO 2007034344 A3 WO2007034344 A3 WO 2007034344A3 IB 2006053107 W IB2006053107 W IB 2006053107W WO 2007034344 A3 WO2007034344 A3 WO 2007034344A3
Authority
WO
WIPO (PCT)
Prior art keywords
frequency range
band
transducer system
audio frequency
long port
Prior art date
Application number
PCT/IB2006/053107
Other languages
French (fr)
Other versions
WO2007034344A2 (en
Inventor
Ronaldus M Aarts
Okke Ouweltjes
Joris A M Nieuwendijk
Original Assignee
Koninkl Philips Electronics Nv
Ronaldus M Aarts
Okke Ouweltjes
Joris A M Nieuwendijk
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 Koninkl Philips Electronics Nv, Ronaldus M Aarts, Okke Ouweltjes, Joris A M Nieuwendijk filed Critical Koninkl Philips Electronics Nv
Priority to CN200680034780.5A priority Critical patent/CN101461254B/en
Priority to EP06795903A priority patent/EP1929836A2/en
Priority to US12/067,301 priority patent/US20080226088A1/en
Priority to JP2008530678A priority patent/JP2009509377A/en
Publication of WO2007034344A2 publication Critical patent/WO2007034344A2/en
Publication of WO2007034344A3 publication Critical patent/WO2007034344A3/en

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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker 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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2853—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line
    • H04R1/2857—Enclosures comprising vibrating or resonating arrangements using an acoustic labyrinth or a transmission line for loudspeaker transducers
    • 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
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

A device is arranged for driving a transducer unit (20) comprising at least one transducer (21) accommodated in an enclosure (22). The device comprises mapping means for mapping input signal components having a first audio frequency range onto a second audio frequency range. The second audio frequency range is narrower than the first audio frequency range, and the second frequency range contains the Helmholtz frequency of the transducer unit (20). A transducer unit (20) for use with the device is optimized for operating in a narrow frequency range at or near the Helmholtz frequency (ƒH).
PCT/IB2006/053107 2005-09-20 2006-09-05 Band- pass transducer system with long port WO2007034344A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
CN200680034780.5A CN101461254B (en) 2005-09-20 2006-09-05 Band logical transducer system with long port
EP06795903A EP1929836A2 (en) 2005-09-20 2006-09-05 Audio transducer system
US12/067,301 US20080226088A1 (en) 2005-09-20 2006-09-05 Audio Transducer System
JP2008530678A JP2009509377A (en) 2005-09-20 2006-09-05 Voice conversion system

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP05108634 2005-09-20
EP05108634.6 2005-09-20

Publications (2)

Publication Number Publication Date
WO2007034344A2 WO2007034344A2 (en) 2007-03-29
WO2007034344A3 true WO2007034344A3 (en) 2008-12-31

Family

ID=37889182

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/053107 WO2007034344A2 (en) 2005-09-20 2006-09-05 Band- pass transducer system with long port

Country Status (5)

Country Link
US (1) US20080226088A1 (en)
EP (1) EP1929836A2 (en)
JP (1) JP2009509377A (en)
CN (1) CN101461254B (en)
WO (1) WO2007034344A2 (en)

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JP5572391B2 (en) * 2006-12-21 2014-08-13 コーニンクレッカ フィリップス エヌ ヴェ Apparatus and method for processing audio data
EP2121755A1 (en) 2007-02-08 2009-11-25 Merck & Co., Inc. Antibodies specific for dkk-1
WO2009060420A1 (en) * 2007-11-09 2009-05-14 Koninklijke Philips Electronics, N.V. Alert device and method
JP5988874B2 (en) * 2009-10-23 2016-09-07 ブループリント アコースティックス ピーティーワイ リミテッドＢｌｕｅｐｒｉｎｔ Ａｃｏｕｓｔｉｃｓ Ｐｔｙ Ｌｔｄ Loudspeaker assembly and system
US20110260875A1 (en) * 2010-04-21 2011-10-27 Koninklijke Philips Electronics, N.V. Alert device and method
GB2492991A (en) 2011-07-19 2013-01-23 Itw Cs Uk Ltd Contact cleaning assembly
GB2513884B (en) 2013-05-08 2015-06-17 Univ Bristol Method and apparatus for producing an acoustic field
US9247342B2 (en) 2013-05-14 2016-01-26 James J. Croft, III Loudspeaker enclosure system with signal processor for enhanced perception of low frequency output
CN103310782B (en) * 2013-05-21 2015-06-17 东南大学 Strong standing wave generation device for symmetric Helmholtz sound sources
GB2530036A (en) 2014-09-09 2016-03-16 Ultrahaptics Ltd Method and apparatus for modulating haptic feedback
ES2896875T3 (en) 2015-02-20 2022-02-28 Ultrahaptics Ip Ltd Perceptions in a haptic system
CA2976319C (en) 2015-02-20 2023-06-27 Ultrahaptics Ip Limited Algorithm improvements in a haptic system
US10818162B2 (en) 2015-07-16 2020-10-27 Ultrahaptics Ip Ltd Calibration techniques in haptic systems
CN107547992A (en) * 2016-06-29 2018-01-05 宏碁股份有限公司 Low-frequency extended loudspeaker and electronic device using same
US10268275B2 (en) 2016-08-03 2019-04-23 Ultrahaptics Ip Ltd Three-dimensional perceptions in haptic systems
CN109863759B (en) * 2016-09-12 2021-06-11 伯斯有限公司 Directional acoustic device
US10943578B2 (en) 2016-12-13 2021-03-09 Ultrahaptics Ip Ltd Driving techniques for phased-array systems
US11531395B2 (en) 2017-11-26 2022-12-20 Ultrahaptics Ip Ltd Haptic effects from focused acoustic fields
US11704983B2 (en) 2017-12-22 2023-07-18 Ultrahaptics Ip Ltd Minimizing unwanted responses in haptic systems
KR20210002703A (en) 2018-05-02 2021-01-08 울트라햅틱스 아이피 엘티디 Blocking plate structure for improved sound transmission efficiency
US11098951B2 (en) 2018-09-09 2021-08-24 Ultrahaptics Ip Ltd Ultrasonic-assisted liquid manipulation
EP3906462A2 (en) 2019-01-04 2021-11-10 Ultrahaptics IP Ltd Mid-air haptic textures
US11842517B2 (en) 2019-04-12 2023-12-12 Ultrahaptics Ip Ltd Using iterative 3D-model fitting for domain adaptation of a hand-pose-estimation neural network
AU2020368678A1 (en) 2019-10-13 2022-05-19 Ultraleap Limited Dynamic capping with virtual microphones
US11374586B2 (en) 2019-10-13 2022-06-28 Ultraleap Limited Reducing harmonic distortion by dithering
US11715453B2 (en) 2019-12-25 2023-08-01 Ultraleap Limited Acoustic transducer structures
US11816267B2 (en) 2020-06-23 2023-11-14 Ultraleap Limited Features of airborne ultrasonic fields
WO2022058738A1 (en) 2020-09-17 2022-03-24 Ultraleap Limited Ultrahapticons

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Also Published As

Publication number Publication date
US20080226088A1 (en) 2008-09-18
CN101461254B (en) 2017-11-07
EP1929836A2 (en) 2008-06-11
JP2009509377A (en) 2009-03-05
CN101461254A (en) 2009-06-17
WO2007034344A2 (en) 2007-03-29

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