FR2705184B1 - Loud speaker. - Google Patents

Loud speaker.

Info

Publication number
FR2705184B1
FR2705184B1 FR9404798A FR9404798A FR2705184B1 FR 2705184 B1 FR2705184 B1 FR 2705184B1 FR 9404798 A FR9404798 A FR 9404798A FR 9404798 A FR9404798 A FR 9404798A FR 2705184 B1 FR2705184 B1 FR 2705184B1
Authority
FR
France
Prior art keywords
loud speaker
loud
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
FR9404798A
Other languages
French (fr)
Other versions
FR2705184A1 (en
Inventor
Sang Pil Lee
Hong Soon Choi
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.)
Samsung Electro Mechanics Co Ltd
Original Assignee
Samsung Electro Mechanics Co Ltd
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 KR1019940008273A external-priority patent/KR940025389A/en
Application filed by Samsung Electro Mechanics Co Ltd filed Critical Samsung Electro Mechanics Co Ltd
Publication of FR2705184A1 publication Critical patent/FR2705184A1/en
Application granted granted Critical
Publication of FR2705184B1 publication Critical patent/FR2705184B1/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
    • H04R9/06—Loudspeakers
    • 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)
  • Circuit For Audible Band Transducer (AREA)
FR9404798A 1993-04-21 1994-04-21 Loud speaker. Expired - Fee Related FR2705184B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR930007026 1993-04-21
KR1019940008273A KR940025389A (en) 1993-04-21 1994-04-18 speaker

Publications (2)

Publication Number Publication Date
FR2705184A1 FR2705184A1 (en) 1994-11-18
FR2705184B1 true FR2705184B1 (en) 1997-05-30

Family

ID=26629626

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9404798A Expired - Fee Related FR2705184B1 (en) 1993-04-21 1994-04-21 Loud speaker.

Country Status (4)

Country Link
JP (1) JPH07123494A (en)
DE (1) DE4413945C2 (en)
FR (1) FR2705184B1 (en)
GB (1) GB2278251B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3625233B2 (en) * 1995-12-26 2005-03-02 フオスター電機株式会社 Speaker unit and speaker system
JP3248711B2 (en) * 1996-09-17 2002-01-21 パイオニア株式会社 Speaker device
FR2883122B1 (en) * 2005-03-11 2007-05-25 Welcohm Technology Sarl SPEAKER WITH MAGNETIC CIRCUIT INCLUDING AN ELECTROMAGNETIC DEVICE TO LIMIT DISTORTION AND SLIDING OF THE DYNAMIC REST POINT OF THE MOBILE CREW
JP2010087623A (en) * 2008-09-29 2010-04-15 Sony Corp Drive unit manufacturing method and drive unit
KR101297319B1 (en) 2011-12-21 2013-08-14 네오피델리티 주식회사 Speaker with built-in filter for digital amplifier
KR101485466B1 (en) * 2013-04-29 2015-01-22 네오피델리티 주식회사 Speaker with built-in filter for digital amplifier and method of manufacturing filter
CN107995574A (en) * 2017-12-27 2018-05-04 林越来 A kind of electrodynamic type loudspeaker and the method for improving electrodynamic type tone quality of horn
NL2025207B1 (en) * 2020-03-25 2021-10-20 Lorentz Audio B V Electroacoustic transducer and loudspeaker, microphone and electronic device comprising said electroacoustic transducer
CN113473333B (en) * 2021-06-28 2023-04-11 Oppo广东移动通信有限公司 Electroacoustic device and electronic apparatus

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5422318B2 (en) * 1974-09-09 1979-08-06
US4243839A (en) * 1977-12-14 1981-01-06 Matsushita Electric Industrial Co., Ltd. Transducer with flux sensing coils
JPS5482228A (en) * 1977-12-14 1979-06-30 Matsushita Electric Ind Co Ltd Converter
US4586192A (en) * 1984-01-27 1986-04-29 Robert B. Welch Soundstage boundary expansion system
JPH0270197A (en) * 1988-09-06 1990-03-09 Mitsubishi Electric Corp Magnetic circuit for acoustic transformer
US4836293A (en) * 1988-11-21 1989-06-06 Eastman Kodak Company Shielding method for use with electromagnetic balance
JPH02237393A (en) * 1989-03-10 1990-09-19 Mitsubishi Electric Corp Magnetic circuit for acoustic device
GB8918975D0 (en) * 1989-08-21 1989-10-04 Birt David R Improvements in moving coil loudspeakers
DE4041858A1 (en) * 1990-12-24 1992-07-02 Nokia Unterhaltungselektronik DRIVE SYSTEM FOR LONG-HUBBED LOW SPEAKER
DE9313631U1 (en) * 1993-09-09 1994-01-13 Radio Lua Helmut Lua Loudspeaker magnet with stray field correction and stroke limitation

Also Published As

Publication number Publication date
GB2278251A (en) 1994-11-23
JPH07123494A (en) 1995-05-12
DE4413945A1 (en) 1994-11-17
FR2705184A1 (en) 1994-11-18
GB9407916D0 (en) 1994-06-15
DE4413945C2 (en) 1995-09-21
GB2278251B (en) 1997-04-02

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Legal Events

Date Code Title Description
ER Errata listed in the french official journal (bopi)

Free format text: 46/94

ST Notification of lapse

Effective date: 20061230