DE68914164D1 - FLAT SPEAKER WITH SLIT MAGNETIC STRUCTURE. - Google Patents

FLAT SPEAKER WITH SLIT MAGNETIC STRUCTURE.

Info

Publication number
DE68914164D1
DE68914164D1 DE89912920T DE68914164T DE68914164D1 DE 68914164 D1 DE68914164 D1 DE 68914164D1 DE 89912920 T DE89912920 T DE 89912920T DE 68914164 T DE68914164 T DE 68914164T DE 68914164 D1 DE68914164 D1 DE 68914164D1
Authority
DE
Germany
Prior art keywords
magnetic structure
flat speaker
slit magnetic
slit
speaker
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 - Fee Related
Application number
DE89912920T
Other languages
German (de)
Other versions
DE68914164T2 (en
Inventor
William House
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.)
Harman International Industries Inc
Original Assignee
Harman International Industries Inc
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=23022723&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE68914164(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Harman International Industries Inc filed Critical Harman International Industries Inc
Publication of DE68914164D1 publication Critical patent/DE68914164D1/en
Application granted granted Critical
Publication of DE68914164T2 publication Critical patent/DE68914164T2/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04R9/045—Mounting
    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
DE68914164T 1988-11-07 1989-10-12 FLAT SPEAKER WITH SLIT MAGNETIC STRUCTURE. Expired - Fee Related DE68914164T2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US26837688A 1988-11-17 1988-11-17
PCT/US1989/004501 WO1990005435A1 (en) 1988-11-07 1989-10-12 Shallow loudspeaker with slotted magnet structure

Publications (2)

Publication Number Publication Date
DE68914164D1 true DE68914164D1 (en) 1994-04-28
DE68914164T2 DE68914164T2 (en) 1994-06-30

Family

ID=23022723

Family Applications (1)

Application Number Title Priority Date Filing Date
DE68914164T Expired - Fee Related DE68914164T2 (en) 1988-11-07 1989-10-12 FLAT SPEAKER WITH SLIT MAGNETIC STRUCTURE.

Country Status (8)

Country Link
EP (1) EP0441881B1 (en)
JP (1) JP2756037B2 (en)
AU (1) AU620185B2 (en)
CA (1) CA1318965C (en)
DE (1) DE68914164T2 (en)
DK (1) DK81391D0 (en)
MX (1) MX170535B (en)
WO (1) WO1990005435A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9210463U1 (en) * 1992-08-05 1992-10-22 Nokia (Deutschland) GmbH, 7530 Pforzheim Coaxial speaker arrangement
DE60038247T2 (en) * 2000-01-27 2009-03-19 Nxp B.V. ELECTRIC ACOUSTIC CONVERTER WITH A MEMBRANE WITH ROLLER MOUNTING TIPS AND INTERMEDIATE STABILIZING WALLS
EP1229759B1 (en) 2000-09-04 2008-10-15 Matsushita Electric Industrial Co., Ltd. Speaker
WO2012038981A1 (en) * 2010-09-23 2012-03-29 Praveen Vallabhaneni Linear actuation loudspeaker driver

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5527721A (en) * 1978-08-18 1980-02-28 Sony Corp Diaphragm for electroacoustic converter
JPS5627600A (en) * 1979-08-10 1981-03-17 Kanenori Kishi Magnetic circuit of moving coil type transducer
JPS6068799A (en) * 1984-07-30 1985-04-19 Matsushita Electric Ind Co Ltd Speaker
EP0356433A4 (en) * 1987-04-08 1991-07-10 Harman International Industries, Incorporated Shallow loudspeaker

Also Published As

Publication number Publication date
AU620185B2 (en) 1992-02-13
WO1990005435A1 (en) 1990-05-17
DK81391A (en) 1991-05-01
AU4626889A (en) 1990-05-28
DE68914164T2 (en) 1994-06-30
MX170535B (en) 1993-08-30
JPH04501643A (en) 1992-03-19
EP0441881B1 (en) 1994-03-23
DK81391D0 (en) 1991-05-01
EP0441881A4 (en) 1991-09-04
CA1318965C (en) 1993-06-08
JP2756037B2 (en) 1998-05-25
EP0441881A1 (en) 1991-08-21

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: DERZEIT KEIN VERTRETER BESTELLT

8339 Ceased/non-payment of the annual fee