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Withdrawn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 versions
EP0409429A2 (en
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/en
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/en
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Withdrawn legal-status Critical Current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; DEAF-AID SETS; 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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/002—Damping circuit arrangements for transducers, e.g. motional feedback circuits
EP19900307020 1989-07-19 1990-06-27 Loudspeaker drive unit Withdrawn EP0409429A3 (en)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 (en) 1989-07-19 1989-07-19 Speaker equipment
JP186290/89 1989-07-19
JP85489/89U 1989-07-20
JP1989085489U JPH0324796U (en) 1989-07-20 1989-07-20

Publications (2)

Publication Number Publication Date
EP0409429A2 EP0409429A2 (en) 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 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102368281B (en) * 2011-11-14 2013-12-18 浙江中科电声研发中心 Numerical value simulating method for loudspeaker magnetic circuit system

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 (en) * 1999-05-26 2000-12-08 Sony Corp Speaker
CN104584585B (en) * 2012-07-31 2020-04-28 弗劳恩霍夫应用研究促进协会 Electro-acoustic driver
CN105069252B (en) * 2015-08-26 2018-10-23 浙江中科电声研发中心 In axial symmetry loud speaker simulation analysis under limited big baffle sound pressure level computational methods

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 (en) * 1983-08-12 1985-03-13 Linn Products Limited Loudspeaker with motional feedback
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 (en) * 1983-08-12 1985-03-13 Linn Products Limited Loudspeaker with motional feedback
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 (en) * 2011-11-14 2013-12-18 浙江中科电声研发中心 Numerical value simulating method for loudspeaker magnetic circuit system

Also Published As

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

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