HK1008650A1 - Panel-form loudspeakers - Google Patents

Panel-form loudspeakers

Info

Publication number
HK1008650A1
HK1008650A1 HK98109455A HK98109455A HK1008650A1 HK 1008650 A1 HK1008650 A1 HK 1008650A1 HK 98109455 A HK98109455 A HK 98109455A HK 98109455 A HK98109455 A HK 98109455A HK 1008650 A1 HK1008650 A1 HK 1008650A1
Authority
HK
Hong Kong
Prior art keywords
radiator
panel
transducer
coupled
form loudspeakers
Prior art date
Application number
HK98109455A
Inventor
Henry Azima
Martin Colloms
Neil Harris
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
Priority claimed from GBGB9517918.0A external-priority patent/GB9517918D0/en
Priority claimed from GBGB9522281.6A external-priority patent/GB9522281D0/en
Priority claimed from GBGB9606836.6A external-priority patent/GB9606836D0/en
Application filed by New Transducers Ltd filed Critical New Transducers Ltd
Publication of HK1008650A1 publication Critical patent/HK1008650A1/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
    • 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
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/045—Plane diaphragms using the distributed mode principle, i.e. whereby the acoustic radiation is emanated from uniformly distributed free bending wave vibration induced in a stiff panel and not from pistonic motion

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Holo Graphy (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)

Abstract

A panel-form loudspeaker having a distributed mode acoustic radiator (2) and a transducer (9) coupled to vibrate the radiator to cause it to resonate, characterised by a second transducer (63) coupled to the radiator to produce a signal in response to resonance of the radiator due to incident acoustic energy.
HK98109455A 1995-09-02 1998-07-28 Panel-form loudspeakers HK1008650A1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GBGB9517918.0A GB9517918D0 (en) 1995-09-02 1995-09-02 Acoustic device
GBGB9522281.6A GB9522281D0 (en) 1995-10-31 1995-10-31 Acoustic device
GBGB9606836.6A GB9606836D0 (en) 1996-03-30 1996-03-30 Acoustic device
PCT/GB1996/002163 WO1997009847A1 (en) 1995-09-02 1996-09-02 Panel-form loudspeakers

Publications (1)

Publication Number Publication Date
HK1008650A1 true HK1008650A1 (en) 1999-05-14

Family

ID=34865249

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98109455A HK1008650A1 (en) 1995-09-02 1998-07-28 Panel-form loudspeakers

Country Status (13)

Country Link
EP (1) EP0847666B1 (en)
JP (1) JPH11512258A (en)
CN (1) CN1195459A (en)
AT (1) ATE177281T1 (en)
AU (1) AU703065B2 (en)
CA (1) CA2230701A1 (en)
DE (1) DE69601647T2 (en)
DK (1) DK0847666T3 (en)
EA (1) EA000929B1 (en)
ES (1) ES2131409T3 (en)
HK (1) HK1008650A1 (en)
RO (1) RO119047B1 (en)
WO (1) WO1997009847A1 (en)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2351868B (en) 1998-06-22 2001-08-29 Slab Technology Ltd Loudspeakers
GB9914507D0 (en) * 1999-06-23 1999-08-25 New Transducers Ltd Acoustic device
US7157649B2 (en) * 1999-12-23 2007-01-02 New Transducers Limited Contact sensitive device
GB0116310D0 (en) 2001-07-04 2001-08-29 New Transducers Ltd Contact sensitive device
US6871149B2 (en) 2002-12-06 2005-03-22 New Transducers Limited Contact sensitive device
US11431312B2 (en) 2004-08-10 2022-08-30 Bongiovi Acoustics Llc System and method for digital signal processing
US10848118B2 (en) 2004-08-10 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
WO2007052835A1 (en) * 2005-11-02 2007-05-10 Nec Corporation Speaker, image element protective screen, case of terminal, and terminal
FR2895617A1 (en) * 2005-12-26 2007-06-29 Jacques Gerald Foin Audio communication system for use in prison, has loud speakers utilized in two directions as loudspeaker or microphone using diaphragm of loud speaker, and local outed network managing audio decentralized on bus cabling system
US10848867B2 (en) 2006-02-07 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
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
FR2943880A1 (en) * 2009-03-30 2010-10-01 Activacoustic ACOUSTIC PANEL FOR RECEIVING, TRANSMITTING OR ABSORBING SOUNDS.
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
EP4111706A4 (en) * 2020-04-29 2023-11-22 Hewlett-Packard Development Company, L.P. Modification of audio signals based on ambient noise collected by speakers
FR3128903B1 (en) * 2021-11-10 2024-04-26 Saint Gobain Vehicle glazing adapted for acoustic emission and/or reception

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2241942B1 (en) * 1973-08-24 1976-05-07 Tretiakoff Oleg
JPS5748153Y2 (en) * 1977-11-26 1982-10-22
DE2819615A1 (en) * 1978-05-05 1979-11-08 Messerschmitt Boelkow Blohm METHOD FOR ACHIEVING EVEN SOUND DISTRIBUTION PROPERTIES
WO1986001362A1 (en) * 1984-08-03 1986-02-27 Motorola, Inc. Piezoelectric loudspeaker having a feedback transducer
DE3429147A1 (en) * 1984-08-08 1986-02-20 Friedrich 6650 Homburg Müller ARRANGEMENT FOR ACOUSTIC COUPLING OF SPEAKERS
US4654546A (en) * 1984-11-20 1987-03-31 Kari Kirjavainen Electromechanical film and procedure for manufacturing same
US4751419A (en) * 1986-12-10 1988-06-14 Nitto Incorporated Piezoelectric oscillation assembly including several individual piezoelectric oscillation devices having a common oscillation plate member
DE69106712T2 (en) * 1990-08-04 1995-06-08 Secr Defence Brit PANEL-SHAPED SPEAKER.

Also Published As

Publication number Publication date
ES2131409T3 (en) 1999-07-16
EP0847666A1 (en) 1998-06-17
DE69601647D1 (en) 1999-04-08
AU703065B2 (en) 1999-03-11
ATE177281T1 (en) 1999-03-15
RO119047B1 (en) 2004-02-27
WO1997009847A1 (en) 1997-03-13
EA199800257A1 (en) 1998-10-29
CA2230701A1 (en) 1997-03-13
EA000929B1 (en) 2000-06-26
DK0847666T3 (en) 1999-10-04
CN1195459A (en) 1998-10-07
JPH11512258A (en) 1999-10-19
DE69601647T2 (en) 1999-09-16
AU6881996A (en) 1997-03-27
EP0847666B1 (en) 1999-03-03

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Legal Events

Date Code Title Description
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)