JPS547574B2 - - Google Patents

Info

Publication number
JPS547574B2
JPS547574B2 JP632877A JP632877A JPS547574B2 JP S547574 B2 JPS547574 B2 JP S547574B2 JP 632877 A JP632877 A JP 632877A JP 632877 A JP632877 A JP 632877A JP S547574 B2 JPS547574 B2 JP S547574B2
Authority
JP
Japan
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.)
Expired
Application number
JP632877A
Other versions
JPS52129517A (en
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
Publication of JPS52129517A publication Critical patent/JPS52129517A/ja
Publication of JPS547574B2 publication Critical patent/JPS547574B2/ja
Granted legal-status Critical Current

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 
    • H04R1/30—Combinations of transducers with horns, e.g. with mechanical matching means, i.e. front-loaded horns
    • 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
JP632877A 1976-04-21 1977-01-21 Acoustic transformer for horn type loudspeaker Granted JPS52129517A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/678,873 US4050541A (en) 1976-04-21 1976-04-21 Acoustical transformer for horn-type loudspeaker

Publications (2)

Publication Number Publication Date
JPS52129517A JPS52129517A (en) 1977-10-31
JPS547574B2 true JPS547574B2 (ja) 1979-04-07

Family

ID=24724642

Family Applications (1)

Application Number Title Priority Date Filing Date
JP632877A Granted JPS52129517A (en) 1976-04-21 1977-01-21 Acoustic transformer for horn type loudspeaker

Country Status (6)

Country Link
US (1) US4050541A (ja)
JP (1) JPS52129517A (ja)
BE (1) BE856768A (ja)
DE (1) DE2648428A1 (ja)
FR (1) FR2349252A1 (ja)
GB (1) GB1514007A (ja)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS547783Y2 (ja) * 1977-01-29 1979-04-11
US4205585A (en) * 1977-03-28 1980-06-03 Hornick Robert A Audio/visual conversion system
US4157741A (en) * 1978-08-16 1979-06-12 Goldwater Alan J Phase plug
US4193647A (en) * 1978-09-11 1980-03-18 Telex Communications, Inc. Piezoelectric ceramic transducers with uniform resonant frequency
JPS5819904Y2 (ja) * 1978-11-30 1983-04-23 三菱電機株式会社 ホ−ンスピ−カ
US4310065A (en) * 1979-05-11 1982-01-12 Chromalloy Electronics Corporation Radial horn
US4325456A (en) * 1980-10-10 1982-04-20 Altec Corporation Acoustical transformer for compression-type loudspeaker with an annular diaphragm
JPS58130694A (ja) * 1982-01-28 1983-08-04 Matsushita Electric Ind Co Ltd ホ−ンスピ−カ
US4525604A (en) * 1983-06-07 1985-06-25 Electro-Voice, Incorporated Horn loudspeaker with convex diaphragm
US4718517A (en) * 1986-02-27 1988-01-12 Electro-Voice, Inc. Loudspeaker and acoustic transformer therefor
US4882562A (en) * 1986-03-11 1989-11-21 Turbosound Limited Adaptor for coupling plural compression drivers to a common horn
GB8724299D0 (en) * 1987-10-16 1987-11-18 Adamson Acoustic Design Corp Loudspeaker design
US5117462A (en) * 1991-03-20 1992-05-26 Jbl Incorporated Phasing plug for compression driver
US6064745A (en) * 1997-09-26 2000-05-16 Peavey Electronics Corporation Compression driver phase plug
JP3562383B2 (ja) * 1998-06-02 2004-09-08 株式会社村田製作所 スピーカ
US6094495A (en) * 1998-09-24 2000-07-25 Eastern Acoustic Works, Inc. Horn-type loudspeaker system
US6118883A (en) * 1998-09-24 2000-09-12 Eastern Acoustic Works, Inc. System for controlling low frequency acoustical directivity patterns and minimizing directivity discontinuities during frequency transitions
US7072481B2 (en) * 2000-07-31 2006-07-04 Harman International Industries, Inc. Two-stage phasing plug system in a compression driver
FR2827732B1 (fr) * 2001-07-23 2004-01-23 Nexo Unite de sonorisation electroacoustique a pavillon ou guide d'onde acoustique
WO2003084288A1 (en) * 2002-03-28 2003-10-09 Harman International Industries, Incorporated Horn-loaded compression driver system
US20040066947A1 (en) * 2002-10-04 2004-04-08 Geddes Earl Rossell Transducer with multiple phase plugs
ITPR20020064A1 (it) 2002-10-31 2004-05-01 Aeb Srl Equalizzatore, o phase plug, per trasduttori elettroacustici.
US7095868B2 (en) * 2003-02-10 2006-08-22 Earl Geddes Phase plug with optimum aperture shapes
US7639830B2 (en) * 2006-03-02 2009-12-29 Cogent True-To-Life Loudspeakers, Incorporated Apparatus for acoustic loading of a diaphragm
GB2437125B (en) * 2006-04-13 2011-02-09 Gp Acoustics Phase plug for compression driver
GB2437126B (en) * 2006-04-13 2011-02-09 Gp Acoustics Phase plug
US20080192972A1 (en) * 2007-02-13 2008-08-14 Vernon Lewallen Phasing plug for acoustic compression drivers
JP4630319B2 (ja) * 2007-09-10 2011-02-09 宏一 平岡 ホーンスピーカ
KR101192910B1 (ko) 2008-08-14 2012-10-18 하만인터내셔날인더스트리스인코포레이티드 직접 방사형 라우드스피커용 패이즈 플러그 및 음향 렌즈
WO2010116387A1 (en) * 2009-04-06 2010-10-14 Fabbrica Italiana Altoparlanti S.P.A. Compression speaker
US8989419B2 (en) 2012-01-18 2015-03-24 Curtis E. Graber Phase plug with axially twisted radial channels
CN105101018B (zh) * 2014-05-23 2018-10-26 苏新平 一种扩音用的号角系统
US10555072B2 (en) 2014-06-18 2020-02-04 Harman International Industries, Incorporated Aperture patterns and orientations for optimization of phasing plug performance in compression drivers
US10250972B2 (en) * 2017-03-23 2019-04-02 Apple Inc. Phase plug having non-round face profile

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE606087C (de) * 1930-03-18 1934-11-24 Telefunken Gmbh Trichterlautsprecher
US2037187A (en) * 1933-03-28 1936-04-14 Bell Telephone Labor Inc Sound translating device
US2183528A (en) * 1937-08-14 1939-12-19 John F Blackburn Loudspeaker
GB654378A (en) * 1947-09-10 1951-06-13 Leonard Young Improvements in and relating to electro-dynamic devices for converting electrical oscillations into sound waves
DE939879C (de) * 1949-03-15 1956-03-08 Siemens Ag Druckkammerlautsprecher mit mehreren Schallkanaelen, die von der Druckkammer zum Trichtereingang fuehren
US2858377A (en) * 1953-04-29 1958-10-28 Arthur Blumenfeld Driver unit for loudspeakers
US2942071A (en) * 1954-10-01 1960-06-21 Rca Corp Horn-type transducer
US2832844A (en) * 1957-04-29 1958-04-29 Univ Loudspeakers Inc Speaker driver
US3027964A (en) * 1958-06-24 1962-04-03 Ampex Loudspeaker
US3852529A (en) * 1973-01-10 1974-12-03 Motorola Inc Acoustic horn

Also Published As

Publication number Publication date
FR2349252B1 (ja) 1982-05-21
GB1514007A (en) 1978-06-14
JPS52129517A (en) 1977-10-31
DE2648428C2 (ja) 1988-05-26
DE2648428A1 (de) 1977-11-03
FR2349252A1 (fr) 1977-11-18
US4050541A (en) 1977-09-27
BE856768A (fr) 1978-01-13

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