EP1061769A2 - Lautsprecher - Google Patents

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Publication number
EP1061769A2
EP1061769A2 EP00305166A EP00305166A EP1061769A2 EP 1061769 A2 EP1061769 A2 EP 1061769A2 EP 00305166 A EP00305166 A EP 00305166A EP 00305166 A EP00305166 A EP 00305166A EP 1061769 A2 EP1061769 A2 EP 1061769A2
Authority
EP
European Patent Office
Prior art keywords
loudspeaker
octant
loudspeakers
cylindrical
strut
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.)
Withdrawn
Application number
EP00305166A
Other languages
English (en)
French (fr)
Other versions
EP1061769A3 (de
Inventor
Taguchi Kazunori
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.)
Taguchi Seisakusho KK
Original Assignee
Taguchi Seisakusho KK
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 Taguchi Seisakusho KK filed Critical Taguchi Seisakusho KK
Publication of EP1061769A2 publication Critical patent/EP1061769A2/de
Publication of EP1061769A3 publication Critical patent/EP1061769A3/de
Withdrawn legal-status Critical Current

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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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers

Definitions

  • This invention relates to a loudspeaker and more specifically, to a loudspeaker with which a directional characteristic pattern of sound can be obtained.
  • Sound reproduced from a sound source is propagated longitudinally as a spherical wave in the air, and it is attenuated in inverse proportion to a square of a distance.
  • each loudspeaker being capable of transmitting a high sound level and uniform and wide direction of the sound.
  • Loudspeaker cabinets should be mounted high up to avoid interference in sound transmission from a large audience or a building and also to increase sound clearness.
  • a plurality of loudspeaker cabinets are mounted in a fanned or spherical shape in an auditorium in order not to cause phase interference with the sound emitted from the adjacent loudspeakers.
  • special loudspeaker clusters including a plurality of accurately arranged loudspeaker cabinets are rigidly mounted on exclusive racks to transmit the desired high level sound.
  • loudspeaker cabinets are mounted on a base fixed at a wall, ceiling or rack respectively.
  • loudspeaker cabinets are located directly and rigidly on the wall, ceiling, beam or rack with bolts, nuts or wires which are fixedly inserted into the desired portion of the loudspeaker cabinets.
  • the exclusive releaseable hanging and fixing metallic brackets axe used together with the ordinary wires, ropes or belts so that the loudspeaker cabinets may be located in the buildings in a fanned or spherical shape.
  • Some exclusive fanned hanging equipments have been proposed for the upper hanging racks (e.g. ELECTRO VOICE, TURBO SOUND, JBL, etc.).
  • the loudspeaker cabinets are hung rigidly in a fanned or spherical shape at the brackets with releaseable wires, ropes, belts, catches or fittings.
  • acoustical facilities such as a large open-air concert hall or meeting
  • big loudspeaker cabinets which can be arranged or withdrawn easily have been proposed.
  • a plurality of ordinary speaker cabinets are hung in buildings such as an auditorium or a concert hall, but they have the following disadvantages.
  • a principal object of this invention is to provide a globular and/or cylindrical loudspeaker comprising a plurality of octant and/or cylindrical loudspeaker drivers and a strut for mounting the globular and/or cylindrical loudspeaker whereby a directional or omnidirectional, smooth, uniform and wide coverage of sound from the globular and/or cylindrical loudspeaker can be obtained.
  • Another object of this invention at least in its preferred forms is to provide a globular and/or cylindrical loudspeaker which can be placed either at a corner or at any desired position in an auditorium whereby a desired high level sound effect can be easily obtained from the adjacent loudspeakers in order to minimize a possible phase interference.
  • Another object of this invention at least in its preferred embodiments is to provide a globular and/or cylindrical loudspeaker comprising a plurality of globular and/or cylindrical loudspeaker drivers and a strut for mounting the globular and/or cylindrical loudspeaker whereby a height of the globular and/or cylindrical loudspeaker can be easily adjusted in order to obtain a precise directional characteristic.
  • Another object of this invention at least in its preferred embodiments is to provide a hemispherical loudspeaker comprising a pair of hemispherical loudspeakers whereby the desired directional characteristic can be adjusted in order to obtain a service area of 180 degrees and to avoid a possible phase interference of the sounds from the adjacent loudspeakers.
  • Another object of this invention at least in its preferred embodiments is to provide an octant loudspeaker which can be easily mounted into a corner portion of a ceiling and two walls of an auditorium.
  • Another object of this invention at least in its preferred embodiments is to provide a plurality of hemispherical loudspeakers which are mounted at each strut provided at a ceiling of an auditory room to obtain an omnidirectional service area of 380 degrees.
  • Still another object of this invention at least in its preferred embodiments is to provide a globular and/or cylindrical loudspeaker comprising a plurality of octant and/or cylindrical loudspeaker drivers which can be easily arranged at the desired position.
  • the present invention a globular loudspeaker for providing sound to a omnidirectional listening area, which comprises: a plurality of octant loudspeakers which are pivotally connected with each other; said octant loudspeaker having a vertical pivotal wall provided with a bracket having a pair of projections; said octant loudspeaker including a plurality of loudspeaker drivers; said octant loudspeaker being an octant hollow casing made of fibrous glass reinforced plastics and having a plurality of openings on a baffle for accommodating a loudspeaker drivers; said loudspeaker driver including a permanent magnet and a diaphragm having a voice coil bonded thereto and an electrical terminal provided on a quadrant horizontal face; and a square strut having T-shaped notches on each side faces for receiving said projections of the brackets for mounting said globular loudspeakers.
  • the present invention provides a cylindrical loudspeaker for providing sound to a defined listening area, which comprises: a plurality of cylindrical loudspeakers which are pivotally connected with each other, and a plurality of octant loudspeakers which are connected to upper and lower portion of said cylindrical loudspeakers; said octant loudspeaker having a vertical pivotal wall provided with a bracket having a pair of projections; said cylindrical and octant loudspeaker including a plurality of loudspeaker drivers; said cylindrical and octant loudspeakers being an cylindrical and octant hollow casing made of fibrous glass reinforced plastics and having a plurality of openings on a baffle for accommodating a loudspeaker drivers; said loudspeaker driver including a permanent magnet and a diaphragm having a voice coil bonded thereto and an electrical terminal provided on a quadrant horizontal face; and a square strut having T-shaped notches on each side faces for receiving said projections of the brackets for mounting said
  • the present invention provides a quadrant loudspeaker providing sound to a defined listening area, which comprises a bracket having a T-shaped bracket.
  • the present invention provides a loudspeaker assembly comprising: a plurality of loudspeaker units; and a strut or bracket on which the loudspeaker units are mounted in use, each said loudspeaker unit comprising: a hollow housing having a curved outer surface forming a portion of a cylinder or sphere and comprising a baffle with one or more loudspeaker drivers mounted therein; and an inwardly located planar surface arranged to be mounted against the strut or bracket such that the curved outer surface of each said loudspeaker unit extends radially outwardly from the strut or bracket in use.
  • FIG. 1-4 pictorially illustrate a globular loudspeaker 10 mounted near a top portion of a square strut 32 of this invention wherein an octant hollow casing 12 made of fibrous glass reinforced plastics includes a plurality of loudspeaker drivers 20 on a baffle 14 of the octant loudspeaker 12.
  • the octant hollow loudspeaker includes a plurality of openings on a baffle 14 for accommodating a loudspeaker driver 30 which comprises a permanent magnet and a diaphragm having a voice coil bonded thereto (both not shown).
  • the octant hollow loudspeaker 12 has a vertical pivotal wall 16, on which 8 bracket 20 having a pair of projections 20a, 20a at each end portion is integrally fixed.
  • an electrical terminal 18a is provided at a given position on a quadrant horizontal face 18 of the octant hollow loudspeakers 12.
  • a square strut 82 has a plurality of notch 32a, 32 on each side face for allowing insertion of the projections 20a, 20a of the bracket 20 so that the octant hollow loudspeakers 12, 12 may be pivotally assembled on the side faces to form a globular loudspeaker 12.
  • a lower square strut having a four-legged horizontal framework at its lowest portion is connected into the last but one square strut 32.
  • a pair of upper octant hollow loudspeakers 12, 12 and a pair of lower octant loudspeakers 12, 12 are vertically and pivotally assembled and fixed near a top portion of the square strut 30 in order to assemble a hemispherical loudspeaker 12, thus obtaining a service area of 180 degrees and also avoiding a possible phase interference of the sound from the adjacent loudspeakers.
  • an octant loudspeaker 12 is provided into a corner portion of a ceiling and two walls of an auditorium by a bracket 11 having a pair of T-shaped notches lla and llb, which in turn is engaged with the projections 20a, 20a of the bracket 20 mounted on a vertical pivotal wall 16 of the octant loudspeaker 12,
  • a pair of octant loudspeakers 12, 12 is provided under a ceiling and a wall of an auditorium by a bracket 11 having a pair of T-shaped notches lla and lla, which in turn is engaged with the projections 20a, 20a of the bracket 20 mounted on a vertical pivotal wall 16 of the octant loudspeaker 12.
  • a hemispherical loudspeaker including four octant loudspeakers 12, 12 is provided under a ceiling of an auditorium with a square strut 32 having notches 32a, 32 on its side face to obtain an omnidirectional service area of sound of 360 degrees.
  • a cylindrical loudspeaker 40 comprises a plurality of quadrant loudspeakers B, B (44, 44) and a plurality of octant loudspeakers A, A (12, 12).
  • the cylindrical loudspeaker 40 is a hollow body A which is made of fibrous glass reinforced plastics, each having a plurality of loudspeaker drivers 30, 30 on a baffle 40, an electrical terminal 18a provided at a given position on a quadrant horizontal face 18 and a vertical pivotal wall 16, on which a bracket 20 having a pair of projections 20a, 20a is vertically fixed.
  • a plurality of quadrant loudspeakers B, B (44, 44) and a plurality of octant loudspeakers A, A (12, 12) are assembled with each to form a cylindrical loudspeaker 40, and a top portion of the square strut 32 having a four-legged horizontal framework at its lowest portion is connected at a bottom portion of the cylindrical loudspeaker 40.
  • square strut 32 can be extended or contracted.
  • a globular and/or cylindrical loudspeaker comprising a plurality of loudspeakers and a square strut 32 for mounting the globular and/or cylindrical loudspeaker can be easily assembled, located at the desired position of the auditorium, concert hall or outdoors, and the like, and mounted at a ceiling or a wall.
  • the globular and/or cylindrical loudspeaker 30, 40 can be easily located at a given place or in a corner of the auditorium, concert hall or the outdoors, thus enabling to deliver a directional, omnidirectional, smooth, uniform and wide coverage of sound.
  • the globular and/or cylindrical loudspeaker 80, 40 can be easily located either at a corner or at any desired position in an auditorium whereby a desired high level sound effect can be obtained from the adjacent loudspeakers in order to minimize a possible phase interference.

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)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP00305166A 1999-06-18 2000-06-19 Lautsprecher Withdrawn EP1061769A3 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP20806199 1999-06-18
JP11208061A JP2001008284A (ja) 1999-06-18 1999-06-18 球形及び円筒形スピーカ装置

Publications (2)

Publication Number Publication Date
EP1061769A2 true EP1061769A2 (de) 2000-12-20
EP1061769A3 EP1061769A3 (de) 2003-12-17

Family

ID=16550005

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00305166A Withdrawn EP1061769A3 (de) 1999-06-18 2000-06-19 Lautsprecher

Country Status (2)

Country Link
EP (1) EP1061769A3 (de)
JP (1) JP2001008284A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2006016156A1 (en) * 2004-08-10 2006-02-16 1...Limited Non-planar transducer arrays
US7319641B2 (en) 2001-10-11 2008-01-15 1 . . . Limited Signal processing device for acoustic transducer array
EP1915025A3 (de) * 2006-08-01 2008-07-30 Intersource Product Development UK ltd. Aufhängungssystem für Lautsprecher
US7515719B2 (en) 2001-03-27 2009-04-07 Cambridge Mechatronics Limited Method and apparatus to create a sound field
US7577260B1 (en) 1999-09-29 2009-08-18 Cambridge Mechatronics Limited Method and apparatus to direct sound
WO2017025151A1 (en) * 2015-08-13 2017-02-16 Huawei Technologies Co., Ltd. An audio signal processing apparatus and a sound emission apparatus
US10631115B2 (en) 2016-08-31 2020-04-21 Harman International Industries, Incorporated Loudspeaker light assembly and control
US10728666B2 (en) * 2016-08-31 2020-07-28 Harman International Industries, Incorporated Variable acoustics loudspeaker

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4591145B2 (ja) * 2004-10-27 2010-12-01 ヤマハ株式会社 音響システム
JP2006319448A (ja) * 2005-05-10 2006-11-24 Yamaha Corp 拡声システム
JP6286158B2 (ja) * 2013-09-11 2018-02-28 イー ジェン チェン デュアル電磁アセンブリを有するラウドスピーカシステム

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60105398A (ja) * 1983-11-11 1985-06-10 Onkyo Corp スピ−カ−キヤビネツト
US4673057A (en) * 1984-11-13 1987-06-16 Glassco John M Geometrical transducer arrangements
EP0762801A2 (de) * 1995-09-01 1997-03-12 Speaker Array Logic, Inc. Nicht-gerichtetes Lautsprechersystem mit punktueller Schallquelle
US5749137A (en) * 1994-05-17 1998-05-12 Martin; Andrew Terry Modular loudspeaker enclosure suspension rigging method
US5889876A (en) * 1997-05-01 1999-03-30 Billings; Bart P. Hemispherical speaker system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60105398A (ja) * 1983-11-11 1985-06-10 Onkyo Corp スピ−カ−キヤビネツト
US4673057A (en) * 1984-11-13 1987-06-16 Glassco John M Geometrical transducer arrangements
US5749137A (en) * 1994-05-17 1998-05-12 Martin; Andrew Terry Modular loudspeaker enclosure suspension rigging method
EP0762801A2 (de) * 1995-09-01 1997-03-12 Speaker Array Logic, Inc. Nicht-gerichtetes Lautsprechersystem mit punktueller Schallquelle
US5889876A (en) * 1997-05-01 1999-03-30 Billings; Bart P. Hemispherical speaker system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 009, no. 258 (E-350), 16 October 1985 (1985-10-16) -& JP 60 105398 A (ONKYO KK), 10 June 1985 (1985-06-10) *

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7577260B1 (en) 1999-09-29 2009-08-18 Cambridge Mechatronics Limited Method and apparatus to direct sound
US7515719B2 (en) 2001-03-27 2009-04-07 Cambridge Mechatronics Limited Method and apparatus to create a sound field
US7319641B2 (en) 2001-10-11 2008-01-15 1 . . . Limited Signal processing device for acoustic transducer array
WO2006016156A1 (en) * 2004-08-10 2006-02-16 1...Limited Non-planar transducer arrays
GB2431314A (en) * 2004-08-10 2007-04-18 1 Ltd Non-planar transducer arrays
GB2431314B (en) * 2004-08-10 2008-12-24 1 Ltd Non-planar transducer arrays
EP1915025A3 (de) * 2006-08-01 2008-07-30 Intersource Product Development UK ltd. Aufhängungssystem für Lautsprecher
CN107852543A (zh) * 2015-08-13 2018-03-27 华为技术有限公司 一种音频信号处理装置和一种声音发射装置
WO2017025151A1 (en) * 2015-08-13 2017-02-16 Huawei Technologies Co., Ltd. An audio signal processing apparatus and a sound emission apparatus
US10405089B2 (en) 2015-08-13 2019-09-03 Huawei Technologies Co., Ltd. Audio signal processing apparatus and a sound emission apparatus
CN107852543B (zh) * 2015-08-13 2020-07-24 华为技术有限公司 一种音频信号处理装置
US10805720B2 (en) 2015-08-13 2020-10-13 Huawei Technologies Co., Ltd. Audio signal processing apparatus and a sound emission apparatus
US10631115B2 (en) 2016-08-31 2020-04-21 Harman International Industries, Incorporated Loudspeaker light assembly and control
US10645516B2 (en) 2016-08-31 2020-05-05 Harman International Industries, Incorporated Variable acoustic loudspeaker system and control
US10728666B2 (en) * 2016-08-31 2020-07-28 Harman International Industries, Incorporated Variable acoustics loudspeaker
US11070931B2 (en) 2016-08-31 2021-07-20 Harman International Industries, Incorporated Loudspeaker assembly and control

Also Published As

Publication number Publication date
JP2001008284A (ja) 2001-01-12
EP1061769A3 (de) 2003-12-17

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