ZA200708373B - Loudspeaker - Google Patents

Loudspeaker

Info

Publication number
ZA200708373B
ZA200708373B ZA200708373A ZA200708373A ZA200708373B ZA 200708373 B ZA200708373 B ZA 200708373B ZA 200708373 A ZA200708373 A ZA 200708373A ZA 200708373 A ZA200708373 A ZA 200708373A ZA 200708373 B ZA200708373 B ZA 200708373B
Authority
ZA
South Africa
Prior art keywords
waveguide
horn
dome shape
waveguide surface
extrapolation
Prior art date
Application number
ZA200708373A
Other languages
English (en)
Inventor
Dodd Mark
Original Assignee
K H Technology Corp
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 K H Technology Corp filed Critical K H Technology Corp
Publication of ZA200708373B publication Critical patent/ZA200708373B/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
    • 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
    • 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
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • 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
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/345—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means for loudspeakers
    • 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
    • H04R7/12—Non-planar diaphragms or cones

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Chair Legs, Seat Parts, And Backrests (AREA)
  • Liquid Crystal (AREA)
  • Surgical Instruments (AREA)
ZA200708373A 2005-03-02 2007-10-01 Loudspeaker ZA200708373B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0504248A GB2423908B (en) 2005-03-02 2005-03-02 Loudspeaker

Publications (1)

Publication Number Publication Date
ZA200708373B true ZA200708373B (en) 2008-10-29

Family

ID=34430460

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA200708373A ZA200708373B (en) 2005-03-02 2007-10-01 Loudspeaker

Country Status (18)

Country Link
US (1) US8094854B2 (xx)
EP (1) EP1856945B1 (xx)
JP (1) JP4790733B2 (xx)
KR (1) KR20080006544A (xx)
CN (1) CN101185367B (xx)
AT (1) ATE474423T1 (xx)
AU (1) AU2006219719A1 (xx)
BR (1) BRPI0608078A2 (xx)
CA (1) CA2599713A1 (xx)
DE (1) DE602006015436D1 (xx)
ES (1) ES2350168T3 (xx)
GB (1) GB2423908B (xx)
HK (1) HK1117697A1 (xx)
MX (1) MX2007010512A (xx)
NO (1) NO20074926L (xx)
TW (1) TW200701819A (xx)
WO (1) WO2006092609A1 (xx)
ZA (1) ZA200708373B (xx)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2451259B (en) * 2007-07-25 2011-07-20 Gp Acoustics Loudspeaker
JP5268203B2 (ja) * 2008-08-14 2013-08-21 ハーマン インターナショナル インダストリーズ インコーポレイテッド 直接放射ラウドスピーカのためのフェイズプラグおよび音響レンズ
US9111521B2 (en) 2009-09-11 2015-08-18 Bose Corporation Modular acoustic horns and horn arrays
US8917896B2 (en) 2009-09-11 2014-12-23 Bose Corporation Automated customization of loudspeakers
US8401216B2 (en) * 2009-10-27 2013-03-19 Saab Sensis Corporation Acoustic traveling wave tube system and method for forming and propagating acoustic waves
GB2474853B (en) 2009-10-27 2014-01-01 Gp Acoustics Uk Ltd Loudspeakers
TWI675596B (zh) * 2018-01-23 2019-10-21 瑋懋科技材料股份有限公司 用於揚聲器之振膜結構
GB2590656A (en) 2019-12-23 2021-07-07 Gp Acoustics International Ltd Loudspeakers

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB504274A (en) 1936-09-26 1939-04-17 Frank Shafto Broadhurst Improvements in or relating to evaporatively cooled apparatus for the cooling of fluids or for the condensation of vapours
JPS53122932U (xx) 1977-03-07 1978-09-30
FR2428952A3 (fr) 1978-04-03 1980-01-11 Audax Haut-parleur electrodynamique a membrane convexe
JPS54164546U (xx) 1978-05-11 1979-11-17
DE3018659A1 (de) 1980-05-16 1981-11-26 Friedrich-Wilhelm Dr. Bracht Lautsprechermembran
JPS57152792A (en) 1981-03-17 1982-09-21 Pioneer Electronic Corp Horn type speaker
US4531608A (en) 1982-10-29 1985-07-30 Heinz Harro K High frequency compression driver
US4590332A (en) 1983-05-23 1986-05-20 Pascal Delbuck Phase coherent low frequency speaker
JPS60171897A (ja) 1984-02-16 1985-09-05 Matsushita Electric Ind Co Ltd スピ−カ用振動板
US5548657A (en) 1988-05-09 1996-08-20 Kef Audio (Uk) Limited Compound loudspeaker drive unit
JPH02238798A (ja) * 1989-03-13 1990-09-21 Jusaburo Sudo スピーカシステム
JP3116119B2 (ja) 1989-04-27 2000-12-11 ティーオーエー株式会社 スピーカ用ホーン
GB2261135A (en) * 1991-11-02 1993-05-05 Meir Mordechai A loudspeaker
JPH0730993A (ja) 1993-07-09 1995-01-31 Matsushita Electric Ind Co Ltd スピーカ用ホーン
IT1285103B1 (it) * 1996-04-02 1998-06-03 Paolo Agostinelli Dispositivo di diffusione elettroacustico, con diaframmi, centratori e trombe in legno di balsa o suoi impasti.
GB2359213B (en) * 1999-10-29 2004-05-19 Kef Audio High frequency transducer
GB2364847B (en) * 2000-07-11 2004-10-13 Kef Audio Compound loudspeaker having a magnet system
CA2352732A1 (en) * 2000-07-11 2002-01-11 Philip Jeffrey Anthony Compound loudspeaker drive unit having a magnet system
JP4557412B2 (ja) 2000-11-20 2010-10-06 パナソニック株式会社 スピーカ
GB2371165B (en) * 2001-01-16 2004-12-22 Kh Technology Magnet system for loudspeakers
GB2377849A (en) * 2001-07-21 2003-01-22 Kh Technology Corp Loudspeaker drive units with smooth transition to surround
JP4290911B2 (ja) 2001-11-08 2009-07-08 ティーオーエー株式会社 ホーンスピーカ
JP3651470B2 (ja) 2003-03-31 2005-05-25 松下電器産業株式会社 スピーカ

Also Published As

Publication number Publication date
TW200701819A (en) 2007-01-01
EP1856945A1 (en) 2007-11-21
EP1856945B1 (en) 2010-07-14
CN101185367A (zh) 2008-05-21
JP4790733B2 (ja) 2011-10-12
GB2423908A (en) 2006-09-06
US20090041280A1 (en) 2009-02-12
ATE474423T1 (de) 2010-07-15
MX2007010512A (es) 2008-03-14
AU2006219719A1 (en) 2006-09-08
KR20080006544A (ko) 2008-01-16
GB2423908B (en) 2008-04-02
CN101185367B (zh) 2012-04-25
ES2350168T3 (es) 2011-01-19
BRPI0608078A2 (pt) 2009-11-10
NO20074926L (no) 2007-10-01
US8094854B2 (en) 2012-01-10
JP2008532404A (ja) 2008-08-14
HK1117697A1 (en) 2009-01-16
DE602006015436D1 (de) 2010-08-26
GB0504248D0 (en) 2005-04-06
CA2599713A1 (en) 2006-09-08
WO2006092609A1 (en) 2006-09-08

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