GB1486853A - Dynamic loudspeakers - Google Patents

Dynamic loudspeakers

Info

Publication number
GB1486853A
GB1486853A GB3036/75A GB303675A GB1486853A GB 1486853 A GB1486853 A GB 1486853A GB 3036/75 A GB3036/75 A GB 3036/75A GB 303675 A GB303675 A GB 303675A GB 1486853 A GB1486853 A GB 1486853A
Authority
GB
United Kingdom
Prior art keywords
curvature
radius
diaphragm
curved surface
curved
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.)
Expired
Application number
GB3036/75A
Other languages
English (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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Publication of GB1486853A publication Critical patent/GB1486853A/en
Expired 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
    • 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
    • H04R7/127—Non-planar diaphragms or cones dome-shaped
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
GB3036/75A 1974-01-31 1975-01-23 Dynamic loudspeakers Expired GB1486853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1354974A JPS574160B2 (en, 2012) 1974-01-31 1974-01-31

Publications (1)

Publication Number Publication Date
GB1486853A true GB1486853A (en) 1977-09-28

Family

ID=11836229

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3036/75A Expired GB1486853A (en) 1974-01-31 1975-01-23 Dynamic loudspeakers

Country Status (8)

Country Link
US (1) US3955055A (en, 2012)
JP (1) JPS574160B2 (en, 2012)
CA (1) CA1025549A (en, 2012)
DE (1) DE2503863C2 (en, 2012)
FR (1) FR2260247B1 (en, 2012)
GB (1) GB1486853A (en, 2012)
IT (1) IT1031315B (en, 2012)
NL (1) NL7500942A (en, 2012)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5269611A (en) * 1975-12-09 1977-06-09 Mitsubishi Electric Corp Speaker
DE2908115C3 (de) * 1979-03-02 1981-12-24 Braun Ag, 6000 Frankfurt Elektrodynamischer Lautsprecher
US4327257A (en) * 1979-09-10 1982-04-27 Schwartz Leslie H Alignment device for electro-acoustical transducers
AT396859B (de) * 1990-10-25 1993-12-27 Ennemoser Dieter Membran für einen elektroakustischen wandler mit unstetiger änderung des öffnungswinkels zwecks anpassung an die gehörfunktion
AU4996099A (en) * 1998-07-21 2000-02-14 Harman International Industries Incorporated Miniature full range loudspeaker
US6394224B1 (en) * 2000-03-30 2002-05-28 Chun-I Liu Structure of speaker
JP2002152885A (ja) * 2000-11-14 2002-05-24 Sony Corp スピーカ装置
JP3874183B2 (ja) * 2002-05-21 2007-01-31 フォスター電機株式会社 電気音響変換器用振動板
WO2005062664A1 (ja) * 2003-12-22 2005-07-07 Matsushita Electric Industrial Co., Ltd. スピーカおよびこれを用いた装置
JP2005203972A (ja) * 2004-01-14 2005-07-28 Pioneer Electronic Corp ドーム型振動板及びスピーカ装置
WO2007058133A1 (ja) * 2005-11-15 2007-05-24 Pioneer Corporation スピーカ、および磁気回路
JP2007336322A (ja) * 2006-06-16 2007-12-27 Pioneer Electronic Corp スピーカ及びその製造方法
EP2854421B1 (en) * 2007-07-25 2017-12-06 Sinar Baja Electric Ltd. Ring shaped membrane for an electro-acoustical loudspeaker
US9232314B2 (en) * 2013-09-09 2016-01-05 Sonos, Inc. Loudspeaker configuration
TWI763271B (zh) * 2021-01-22 2022-05-01 美律實業股份有限公司 振膜結構

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1918164A (en) * 1929-09-10 1933-07-11 William L Woolf Acoustic device
GB494726A (en) * 1937-04-28 1938-10-28 British Thomson Houston Co Ltd Acoustic diaphragm
FR890151A (fr) * 1941-03-15 1944-01-31 Fides Gmbh Perfectionnements aux dispositifs de centrage pour haut-parleurs électrodynamiques
US3190389A (en) * 1963-06-20 1965-06-22 Gen Electric Loudspeaker construction
DE2110466B1 (de) * 1971-03-04 1971-11-18 Standard Elek K Lorenz Ag Hochtonlautsprecher
JPS5089330U (en, 2012) * 1973-12-17 1975-07-29

Also Published As

Publication number Publication date
NL7500942A (nl) 1975-08-04
IT1031315B (it) 1979-04-30
JPS50108918A (en, 2012) 1975-08-27
FR2260247A1 (en, 2012) 1975-08-29
JPS574160B2 (en, 2012) 1982-01-25
DE2503863C2 (de) 1983-11-10
DE2503863A1 (de) 1975-08-07
CA1025549A (en) 1978-01-31
FR2260247B1 (en, 2012) 1982-02-26
US3955055A (en) 1976-05-04

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee