EP0409429A3 - Loudspeaker drive unit - Google Patents

Loudspeaker drive unit Download PDF

Info

Publication number
EP0409429A3
EP0409429A3 EP19900307020 EP90307020A EP0409429A3 EP 0409429 A3 EP0409429 A3 EP 0409429A3 EP 19900307020 EP19900307020 EP 19900307020 EP 90307020 A EP90307020 A EP 90307020A EP 0409429 A3 EP0409429 A3 EP 0409429A3
Authority
EP
European Patent Office
Prior art keywords
drive unit
loudspeaker drive
loudspeaker
unit
drive
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Withdrawn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
EP19900307020
Other languages
English (en)
Other versions
EP0409429A2 (de
Inventor
Kiyofumi Inanaga
Hiroyuki Sogawa
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
Priority claimed from JP1186290A external-priority patent/JPH0388500A/ja
Priority claimed from JP1989085489U external-priority patent/JPH0324796U/ja
Application filed by Sony Corp filed Critical Sony Corp
Publication of EP0409429A2 publication Critical patent/EP0409429A2/de
Publication of EP0409429A3 publication Critical patent/EP0409429A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H04R9/063—Loudspeakers using a plurality of acoustic drivers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
EP19900307020 1989-07-19 1990-06-27 Loudspeaker drive unit Withdrawn EP0409429A3 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP1186290A JPH0388500A (ja) 1989-07-19 1989-07-19 スピーカ装置
JP186290/89 1989-07-19
JP85489/89U 1989-07-20
JP1989085489U JPH0324796U (de) 1989-07-20 1989-07-20

Publications (2)

Publication Number Publication Date
EP0409429A2 EP0409429A2 (de) 1991-01-23
EP0409429A3 true EP0409429A3 (en) 1992-03-18

Family

ID=26426494

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900307020 Withdrawn EP0409429A3 (en) 1989-07-19 1990-06-27 Loudspeaker drive unit

Country Status (1)

Country Link
EP (1) EP0409429A3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368281B (zh) * 2011-11-14 2013-12-18 浙江中科电声研发中心 一种扬声器磁路系统的数值模拟方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5298245A (en) * 1991-01-29 1994-03-29 Mycogen Corporation Bacillus thuringiensis isolates active against dipteran pests
WO1995025413A1 (en) * 1994-03-17 1995-09-21 Vladimir Walter Kukurudza Self-damping speaker matching device and method
JP2000341789A (ja) 1999-05-26 2000-12-08 Sony Corp スピーカ
CN104584585B (zh) * 2012-07-31 2020-04-28 弗劳恩霍夫应用研究促进协会 电声驱动器
CN105069252B (zh) * 2015-08-26 2018-10-23 浙江中科电声研发中心 轴对称扬声器仿真分析中有限大障板下声压级的计算方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1591184A (en) * 1977-04-20 1981-06-17 Ard Anstalt Electroacoustic transducers
EP0134092A2 (de) * 1983-08-12 1985-03-13 Linn Products Limited Lautsprecher mit Bewegungsgegenkopplung
US4598178A (en) * 1983-12-16 1986-07-01 Rollins William L Means for critically damping a dynamic loudspeaker
US4783824A (en) * 1984-10-23 1988-11-08 Trio Kabushiki Kaisha Speaker unit having two voice coils wound around a common coil bobbin

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1591184A (en) * 1977-04-20 1981-06-17 Ard Anstalt Electroacoustic transducers
EP0134092A2 (de) * 1983-08-12 1985-03-13 Linn Products Limited Lautsprecher mit Bewegungsgegenkopplung
US4598178A (en) * 1983-12-16 1986-07-01 Rollins William L Means for critically damping a dynamic loudspeaker
US4783824A (en) * 1984-10-23 1988-11-08 Trio Kabushiki Kaisha Speaker unit having two voice coils wound around a common coil bobbin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368281B (zh) * 2011-11-14 2013-12-18 浙江中科电声研发中心 一种扬声器磁路系统的数值模拟方法

Also Published As

Publication number Publication date
EP0409429A2 (de) 1991-01-23

Similar Documents

Publication Publication Date Title
GB8915856D0 (en) Drive mechanism
GB2234033B (en) Drive mechanism
AU610784B1 (en) Compact camshaft-phasing drive
EP0409429A3 (en) Loudspeaker drive unit
GB8925510D0 (en) Axle drive unit
GB8921139D0 (en) Frame
EP0411439A3 (en) Unit drive assembly
GB8906482D0 (en) Frame
GB2234032B (en) Drive mechanism
EP0413447A3 (en) Drive arrangement
GB9006246D0 (en) Drive
GB2230518B (en) Feeder-folder unit
GB9000716D0 (en) Drive system
GB8906247D0 (en) Loudspeakers
GB2240532B (en) Drive unit
AU8447691A (en) Drive
GB8821502D0 (en) Drive unit
HU901896D0 (en) Loudspeaker unit
GB2256693B (en) Drive system
GB9015311D0 (en) Drive arrangement
GB9220025D0 (en) Loudspeaker drive unit
GB9001903D0 (en) Drive unit
AU5706190A (en) Drive apparatus
AU5389290A (en) Loudspeaker
EP0421128A3 (en) Frame

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE FR GB

17P Request for examination filed

Effective date: 19901224

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE FR GB

17Q First examination report despatched

Effective date: 19931228

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19940511