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DE59303831D1 - Magnet system for electro-acoustic transducers - Google Patents

Magnet system for electro-acoustic transducers

Info

Publication number
DE59303831D1
DE59303831D1 DE59303831T DE59303831T DE59303831D1 DE 59303831 D1 DE59303831 D1 DE 59303831D1 DE 59303831 T DE59303831 T DE 59303831T DE 59303831 T DE59303831 T DE 59303831T DE 59303831 D1 DE59303831 D1 DE 59303831D1
Authority
DE
Germany
Prior art keywords
electro
magnet system
acoustic transducers
transducers
acoustic
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 - Lifetime
Application number
DE59303831T
Other languages
German (de)
Inventor
Gerhard Pfaffinger
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 Becker Automotive Systems GmbH
Original Assignee
Nokia Technology GmbH
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 Nokia Technology GmbH filed Critical Nokia Technology GmbH
Priority to DE59303831T priority Critical patent/DE59303831D1/en
Application granted granted Critical
Publication of DE59303831D1 publication Critical patent/DE59303831D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
DE59303831T 1992-07-30 1993-07-15 Magnet system for electro-acoustic transducers Expired - Lifetime DE59303831D1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE59303831T DE59303831D1 (en) 1992-07-30 1993-07-15 Magnet system for electro-acoustic transducers

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19924225156 DE4225156A1 (en) 1992-07-30 1992-07-30 Magnet system for electro-acoustic transducers
DE59303831T DE59303831D1 (en) 1992-07-30 1993-07-15 Magnet system for electro-acoustic transducers

Publications (1)

Publication Number Publication Date
DE59303831D1 true DE59303831D1 (en) 1996-10-24

Family

ID=6464440

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19924225156 Withdrawn DE4225156A1 (en) 1992-07-30 1992-07-30 Magnet system for electro-acoustic transducers
DE59303831T Expired - Lifetime DE59303831D1 (en) 1992-07-30 1993-07-15 Magnet system for electro-acoustic transducers

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DE19924225156 Withdrawn DE4225156A1 (en) 1992-07-30 1992-07-30 Magnet system for electro-acoustic transducers

Country Status (4)

Country Link
EP (1) EP0581129B1 (en)
JP (1) JPH06163240A (en)
DE (2) DE4225156A1 (en)
DK (1) DK0581129T3 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19618898A1 (en) * 1996-05-10 1997-11-13 Nokia Deutschland Gmbh speaker
DE19808688C2 (en) * 1997-03-05 2002-12-12 Harman Audio Electronic Sys Magnet system and method for its manufacture
GB2371165B (en) * 2001-01-16 2004-12-22 Kh Technology Magnet system for loudspeakers
ITRE20010026A1 (en) 2001-03-23 2002-09-23 S I P E Societ Italiana Elettr SPEAKER CUPS WITH NEODYMIUM MAGNET.
JP2005151253A (en) 2003-11-17 2005-06-09 Sony Corp Speaker apparatus
JP3981926B2 (en) * 2003-11-17 2007-09-26 ソニー株式会社 Speaker device
JP3797561B2 (en) 2003-11-18 2006-07-19 ソニー株式会社 Speaker device
US7894623B2 (en) 2006-03-22 2011-02-22 Harman International Industries, Incorporated Loudspeaker having an interlocking magnet structure
US9854365B2 (en) 2016-04-15 2017-12-26 Harman International Industries, Inc. Loudspeaker motor and suspension system

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2188790A (en) * 1986-04-04 1987-10-07 Data Recording Instr Co Switched stator winding for an electric motor
GB8810943D0 (en) * 1988-05-09 1988-06-15 Kef Electronics Ltd Loudspeaker
US4926896A (en) * 1988-12-23 1990-05-22 Dresser Industries, Inc. Sensitive electrical to mechanical transducer
DE3936639C1 (en) * 1989-11-03 1991-03-07 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De Permanent magnet arrangement e.g. for vehicle loudspeaker - includes associated oscillatory coil arrangement to drive loudspeaker diaphragm
DE4021651C1 (en) * 1990-07-07 1991-06-27 Mercedes-Benz Aktiengesellschaft, 7000 Stuttgart, De

Also Published As

Publication number Publication date
DE4225156A1 (en) 1994-02-03
EP0581129B1 (en) 1996-09-18
DK0581129T3 (en) 1997-03-17
JPH06163240A (en) 1994-06-10
EP0581129A1 (en) 1994-02-02

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: HARMAN AUDIO ELECTRONIC SYSTEMS GMBH, 94315 STRAUB

8327 Change in the person/name/address of the patent owner

Owner name: HARMAN BECKER AUTOMOTIVE SYSTEMS GMBH, 76307 K, DE