NL7308103A - - Google Patents

Info

Publication number
NL7308103A
NL7308103A NL7308103A NL7308103A NL7308103A NL 7308103 A NL7308103 A NL 7308103A NL 7308103 A NL7308103 A NL 7308103A NL 7308103 A NL7308103 A NL 7308103A NL 7308103 A NL7308103 A NL 7308103A
Authority
NL
Netherlands
Application number
NL7308103A
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 filed Critical
Priority to NL7308103A priority Critical patent/NL7308103A/xx
Priority to US05/474,450 priority patent/US3941932A/en
Priority to ZA00743498A priority patent/ZA743498B/xx
Priority to DE19742426474 priority patent/DE2426474B2/de
Priority to SE7407496A priority patent/SE395103B/xx
Priority to CA201,910A priority patent/CA1003554A/en
Priority to GB2545374A priority patent/GB1471190A/en
Priority to DK307774AA priority patent/DK139450B/da
Priority to BE145262A priority patent/BE816140A/xx
Priority to IT68820/74A priority patent/IT1011942B/it
Priority to BR4755/74A priority patent/BR7404755D0/pt
Priority to ES427139A priority patent/ES427139A1/es
Priority to AT476274A priority patent/AT332919B/de
Priority to AU69923/74A priority patent/AU494735B2/en
Priority to JP49065132A priority patent/JPS5034223A/ja
Priority to CH790874A priority patent/CH569397A5/xx
Priority to FR7420130A priority patent/FR2233784B1/fr
Publication of NL7308103A publication Critical patent/NL7308103A/xx
Priority to JP1981002900U priority patent/JPS605678Y2/ja

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
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
NL7308103A 1973-06-12 1973-06-12 NL7308103A (xx)

Priority Applications (18)

Application Number Priority Date Filing Date Title
NL7308103A NL7308103A (xx) 1973-06-12 1973-06-12
US05/474,450 US3941932A (en) 1973-06-12 1974-05-29 Loudspeaker having a voice coil and a piezoelectric feedback transducer
ZA00743498A ZA743498B (en) 1973-06-12 1974-05-30 Loudspeaker having a voice coil and a piezoelectric feedback transducer
DE19742426474 DE2426474B2 (de) 1973-06-12 1974-05-31 Lautsprecher mit einer schwingspule und einem piezoelektrischen rueckkopplungswandler
SE7407496A SE395103B (sv) 1973-06-12 1974-06-07 Hogtalare med en talspole och en piezoelektrisk givare
CA201,910A CA1003554A (en) 1973-06-12 1974-06-07 Loudspeaker having a voice coil and a piezoelectric feedback transducer
GB2545374A GB1471190A (en) 1973-06-12 1974-06-07 Loudspeaker
DK307774AA DK139450B (da) 1973-06-12 1974-06-07 Højttaler med en svingspole og en piezoelektrisk tilbagekoblingstransor.
IT68820/74A IT1011942B (it) 1973-06-12 1974-06-10 Altoparlante avente una bobina fonica ed un trasduttore piezo elettrico di reazione
BE145262A BE816140A (fr) 1973-06-12 1974-06-10 Haut-parleur muni d'une bobine de commande et d'un transducteurpiezo-electrique de reaction
BR4755/74A BR7404755D0 (pt) 1973-06-12 1974-06-10 Alto-falante tendo uma bobina fonica e um transdutor piezeletrico de realimentacao
ES427139A ES427139A1 (es) 1973-06-12 1974-06-10 Dispositivo de altavoz perfeccionado.
AT476274A AT332919B (de) 1973-06-12 1974-06-10 Lautsprecher
AU69923/74A AU494735B2 (en) 1974-06-10 Loudspeaker having a voice coil anda piezoelectric feedback transducer
JP49065132A JPS5034223A (xx) 1973-06-12 1974-06-10
CH790874A CH569397A5 (xx) 1973-06-12 1974-06-10
FR7420130A FR2233784B1 (xx) 1973-06-12 1974-06-11
JP1981002900U JPS605678Y2 (ja) 1973-06-12 1981-01-14 スピ−カ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7308103A NL7308103A (xx) 1973-06-12 1973-06-12

Publications (1)

Publication Number Publication Date
NL7308103A true NL7308103A (xx) 1974-12-16

Family

ID=19819047

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7308103A NL7308103A (xx) 1973-06-12 1973-06-12

Country Status (16)

Country Link
US (1) US3941932A (xx)
JP (2) JPS5034223A (xx)
AT (1) AT332919B (xx)
BE (1) BE816140A (xx)
BR (1) BR7404755D0 (xx)
CA (1) CA1003554A (xx)
CH (1) CH569397A5 (xx)
DE (1) DE2426474B2 (xx)
DK (1) DK139450B (xx)
ES (1) ES427139A1 (xx)
FR (1) FR2233784B1 (xx)
GB (1) GB1471190A (xx)
IT (1) IT1011942B (xx)
NL (1) NL7308103A (xx)
SE (1) SE395103B (xx)
ZA (1) ZA743498B (xx)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5852780Y2 (ja) * 1980-07-19 1983-12-01 パイオニア株式会社 マイクロホン
JPS58182998A (ja) * 1982-04-20 1983-10-26 Pioneer Electronic Corp Ｍｆｂ型スピ−カ
US4573189A (en) * 1983-10-19 1986-02-25 Velodyne Acoustics, Inc. Loudspeaker with high frequency motional feedback
DE3429147A1 (de) * 1984-08-08 1986-02-20 Friedrich 6650 Homburg Müller Anordnung zur akustischen gegenkopplung von lautsprechern
JPS6249395U (xx) * 1985-09-17 1987-03-26
US4718098A (en) * 1986-07-22 1988-01-05 Ashworth William J Multi-diaphragm artificial reverberation device
US4823391A (en) * 1986-07-22 1989-04-18 Schwartz David M Sound reproduction system
US5889871A (en) * 1993-10-18 1999-03-30 The United States Of America As Represented By The Secretary Of The Navy Surface-laminated piezoelectric-film sound transducer
US5727076A (en) * 1994-05-02 1998-03-10 Aura Systems, Inc. Audio transducer having piezoelectric device
US5652801A (en) * 1994-05-02 1997-07-29 Aura Systems, Inc. Resonance damper for piezoelectric transducer
US5901231A (en) * 1995-09-25 1999-05-04 Noise Cancellation Technologies, Inc. Piezo speaker for improved passenger cabin audio systems
US6243472B1 (en) * 1997-09-17 2001-06-05 Frank Albert Bilan Fully integrated amplified loudspeaker
US6584204B1 (en) 1997-12-11 2003-06-24 The Regents Of The University Of California Loudspeaker system with feedback control for improved bandwidth and distortion reduction
DE19843079A1 (de) * 1998-09-19 2000-03-23 Nokia Deutschland Gmbh Multiresonanzplatte
WO2003024149A1 (en) * 2001-09-10 2003-03-20 Sonion A/S Miniature speaker with integrated signal processing electronics
CA2408045A1 (en) * 2001-10-16 2003-04-16 Audio Products International Corp. Loudspeaker with large displacement motional feedback
US7120270B2 (en) * 2002-09-18 2006-10-10 Bose Corporation Audio device heat transferring
JP4141853B2 (ja) * 2003-01-30 2008-08-27 三菱電機株式会社 スピーカ
US9084051B2 (en) * 2011-02-18 2015-07-14 The Rockefeller University Unidirectional mechanical amplification in a microphone
USD767541S1 (en) * 2014-04-23 2016-09-27 Martin Audio Limited Loudspeaker
WO2016088459A1 (ja) * 2014-12-02 2016-06-09 ソニー株式会社 スピーカー装置
USD848402S1 (en) 2014-12-11 2019-05-14 Sony Corporation Speaker
USD791106S1 (en) * 2014-12-11 2017-07-04 Sony Corporation Speaker
GB2620787A (en) 2022-07-22 2024-01-24 Gp Acoustics Uk Ltd Loudspeakers

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1932460A (en) * 1932-04-16 1933-10-31 Patent Engineering Corp Speaker amplifier
US2860183A (en) * 1954-02-01 1958-11-11 Conrad Ivan Willard Sound reproducing system
US2948778A (en) * 1956-05-07 1960-08-09 Warner W Clements Sound reproducing means
FR1370980A (fr) * 1962-11-28 1964-08-28 Brown Ltd S G Perfectionnements aux transducteurs piézo-électriques
NL298464A (xx) * 1963-06-21
JPS4120247Y1 (xx) * 1964-07-18 1966-09-26

Also Published As

Publication number Publication date
US3941932A (en) 1976-03-02
DK307774A (xx) 1975-02-03
BR7404755D0 (pt) 1975-01-21
DE2426474A1 (de) 1975-01-09
CH569397A5 (xx) 1975-11-14
ES427139A1 (es) 1976-07-16
FR2233784B1 (xx) 1977-10-07
ZA743498B (en) 1976-01-28
ATA476274A (de) 1976-02-15
BE816140A (fr) 1974-12-10
AU6992374A (en) 1975-12-11
GB1471190A (en) 1977-04-21
AT332919B (de) 1976-10-25
DK139450C (xx) 1979-07-30
JPS605678Y2 (ja) 1985-02-21
FR2233784A1 (xx) 1975-01-10
DK139450B (da) 1979-02-19
SE395103B (sv) 1977-07-25
JPS5034223A (xx) 1975-04-02
DE2426474B2 (de) 1977-06-02
SE7407496L (xx) 1974-12-13
IT1011942B (it) 1977-02-10
CA1003554A (en) 1977-01-11
JPS56105993U (xx) 1981-08-18

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Legal Events

Date Code Title Description
BC A request for examination has been filed
BI The patent application has been withdrawn