DE69127862T2 - Magnetic circuit for speakers - Google Patents

Magnetic circuit for speakers

Info

Publication number
DE69127862T2
DE69127862T2 DE69127862T DE69127862T DE69127862T2 DE 69127862 T2 DE69127862 T2 DE 69127862T2 DE 69127862 T DE69127862 T DE 69127862T DE 69127862 T DE69127862 T DE 69127862T DE 69127862 T2 DE69127862 T2 DE 69127862T2
Authority
DE
Germany
Prior art keywords
speakers
magnetic circuit
magnetic
circuit
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.)
Revoked
Application number
DE69127862T
Other languages
German (de)
Other versions
DE69127862D1 (en
Inventor
C O Kawagoe Koujou Jiro
Fumio Murayama
Kunio Mitobe
Shuichi Watanabe
Masatosi Sato
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=26507782&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE69127862(T2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Priority claimed from JP19327790A external-priority patent/JPH0479700A/en
Priority claimed from JP2280773A external-priority patent/JP2987188B2/en
Application filed by Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Publication of DE69127862D1 publication Critical patent/DE69127862D1/en
Application granted granted Critical
Publication of DE69127862T2 publication Critical patent/DE69127862T2/en
Anticipated expiration legal-status Critical
Revoked 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
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil
    • 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
    • H04R9/02—Details
    • H04R9/025—Magnetic circuit
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
    • H04R2209/022—Aspects regarding the stray flux internal or external to the magnetic circuit, e.g. shielding, shape of magnetic circuit, flux compensation coils

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
DE69127862T 1990-07-20 1991-03-15 Magnetic circuit for speakers Revoked DE69127862T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP19327790A JPH0479700A (en) 1990-07-20 1990-07-20 Magnetic circuit for loudspeaker
JP2280773A JP2987188B2 (en) 1990-10-19 1990-10-19 Magnetic circuit for speaker

Publications (2)

Publication Number Publication Date
DE69127862D1 DE69127862D1 (en) 1997-11-13
DE69127862T2 true DE69127862T2 (en) 1998-05-28

Family

ID=26507782

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69127862T Revoked DE69127862T2 (en) 1990-07-20 1991-03-15 Magnetic circuit for speakers

Country Status (4)

Country Link
EP (1) EP0467016B1 (en)
KR (1) KR920003800A (en)
CA (1) CA2038185A1 (en)
DE (1) DE69127862T2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020046897A (en) * 2000-12-09 2002-06-21 이형도 A Magnetic circuit of micro speaker
CN109714696A (en) * 2018-12-07 2019-05-03 歌尔股份有限公司 A kind of assembly method of magnetic circuit component

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0224313Y2 (en) * 1980-08-01 1990-07-03
JPS6248246A (en) * 1985-08-27 1987-03-02 Moriyama Kogyo Kk Rotary machine of permanent magnet

Also Published As

Publication number Publication date
DE69127862D1 (en) 1997-11-13
KR920003800A (en) 1992-02-29
EP0467016B1 (en) 1997-10-08
CA2038185A1 (en) 1992-01-21
EP0467016A3 (en) 1992-06-17
EP0467016A2 (en) 1992-01-22

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8320 Willingness to grant licences declared (paragraph 23)
8331 Complete revocation