GB0128306D0 - Improvements in or relating to loudspeakers - Google Patents

Improvements in or relating to loudspeakers

Info

Publication number
GB0128306D0
GB0128306D0 GBGB0128306.8A GB0128306A GB0128306D0 GB 0128306 D0 GB0128306 D0 GB 0128306D0 GB 0128306 A GB0128306 A GB 0128306A GB 0128306 D0 GB0128306 D0 GB 0128306D0
Authority
GB
United Kingdom
Prior art keywords
loudspeakers
relating
radiating openings
monotonically
divisions
Prior art date
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.)
Granted
Application number
GBGB0128306.8A
Other versions
GB2382511A (en
GB2382511C (en
GB2382511B (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Turbosound Ltd
Original Assignee
Turbosound 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
Application filed by Turbosound Ltd filed Critical Turbosound Ltd
Priority to GB0128306A priority Critical patent/GB2382511C/en
Publication of GB0128306D0 publication Critical patent/GB0128306D0/en
Priority to DE60228808T priority patent/DE60228808D1/en
Priority to EP02258106A priority patent/EP1315398B1/en
Priority to AT02258106T priority patent/ATE408322T1/en
Publication of GB2382511A publication Critical patent/GB2382511A/en
Application granted granted Critical
Publication of GB2382511B publication Critical patent/GB2382511B/en
Publication of GB2382511C publication Critical patent/GB2382511C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2201/00—Details of transducers, loudspeakers or microphones covered by H04R1/00 but not provided for in any of its subgroups
    • H04R2201/34—Directing or guiding sound by means of a phase plug

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)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)

Abstract

In a horn-loaded compression loudspeaker, sound energy is routed from a compression chamber to a number of radiating openings via respective passages 75 of monotonically-increasing cross-sectional area. This enables a desired wavefront shape to be constructed, by virtue of the radiating openings constituting sub-divisions of a surface which defines the required wavefront. <IMAGE>
GB0128306A 2001-11-26 2001-11-26 Improvements in or relating to loudspeakers Expired - Fee Related GB2382511C (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB0128306A GB2382511C (en) 2001-11-26 2001-11-26 Improvements in or relating to loudspeakers
DE60228808T DE60228808D1 (en) 2001-11-26 2002-11-25 Horn speaker
EP02258106A EP1315398B1 (en) 2001-11-26 2002-11-25 Horn loaded type loudspeaker
AT02258106T ATE408322T1 (en) 2001-11-26 2002-11-25 HORN SPEAKER

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0128306A GB2382511C (en) 2001-11-26 2001-11-26 Improvements in or relating to loudspeakers

Publications (4)

Publication Number Publication Date
GB0128306D0 true GB0128306D0 (en) 2002-01-16
GB2382511A GB2382511A (en) 2003-05-28
GB2382511B GB2382511B (en) 2005-12-14
GB2382511C GB2382511C (en) 2011-03-04

Family

ID=9926472

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0128306A Expired - Fee Related GB2382511C (en) 2001-11-26 2001-11-26 Improvements in or relating to loudspeakers

Country Status (4)

Country Link
EP (1) EP1315398B1 (en)
AT (1) ATE408322T1 (en)
DE (1) DE60228808D1 (en)
GB (1) GB2382511C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI120126B (en) * 2004-04-30 2009-06-30 Aura Audio Oy A method for providing a smooth sound wave front with a planar waveguide, speaker structure and acoustic line emitter
GB2445597A (en) * 2007-01-09 2008-07-16 William Wood Magnetostrictive compression type loudspeaker with phasing plug
CN108024175B (en) * 2017-12-08 2024-03-22 东莞市三基音响科技有限公司 High sound pressure directional sound amplifying waveguide horn

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB386942A (en) * 1930-04-18 1933-01-26 British Thomson Houston Co Ltd Improvements in and relating to sound reproducing apparatus
US2127110A (en) * 1936-08-03 1938-08-16 United Res Corp Acoustic device
US3668335A (en) * 1969-06-17 1972-06-06 Harold N Beveridge Electrostatic loudspeaker
US3972385A (en) * 1973-01-17 1976-08-03 Onkyo Kabushiki Kaisha Horn speaker
US5004067A (en) * 1988-06-30 1991-04-02 Patronis Eugene T Cinema sound system for unperforated screens
DE69116728T2 (en) * 1990-05-18 1996-09-19 Matsushita Electric Ind Co Ltd Horn speaker

Also Published As

Publication number Publication date
GB2382511A (en) 2003-05-28
EP1315398A3 (en) 2005-06-08
EP1315398A2 (en) 2003-05-28
ATE408322T1 (en) 2008-09-15
DE60228808D1 (en) 2008-10-23
GB2382511C (en) 2011-03-04
GB2382511B (en) 2005-12-14
EP1315398B1 (en) 2008-09-10

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Legal Events

Date Code Title Description
S27 Amendment of specification after grant (sect. 27/patents act 1977)
S27 Amendment of specification after grant (sect. 27/patents act 1977)
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20091126