DE60120100D1 - Elektromagnetischer wandler sowie tragbares kommunikationsgerät - Google Patents

Elektromagnetischer wandler sowie tragbares kommunikationsgerät

Info

Publication number
DE60120100D1
DE60120100D1 DE60120100T DE60120100T DE60120100D1 DE 60120100 D1 DE60120100 D1 DE 60120100D1 DE 60120100 T DE60120100 T DE 60120100T DE 60120100 T DE60120100 T DE 60120100T DE 60120100 D1 DE60120100 D1 DE 60120100D1
Authority
DE
Germany
Prior art keywords
communication device
portable communication
electromagnetic converter
converter
electromagnetic
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
DE60120100T
Other languages
English (en)
Other versions
DE60120100T2 (de
Inventor
Sawako Usuki
Shuji Saiki
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial 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
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of DE60120100D1 publication Critical patent/DE60120100D1/de
Application granted granted Critical
Publication of DE60120100T2 publication Critical patent/DE60120100T2/de
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
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • H04R13/02—Telephone receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Telephone Set Structure (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
DE60120100T 2000-05-22 2001-04-16 Elektromagnetischer wandler sowie tragbares kommunikationsgerät Expired - Lifetime DE60120100T2 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2000149353 2000-05-22
JP2000149353 2000-05-22
PCT/JP2001/003256 WO2001091514A1 (en) 2000-05-22 2001-04-16 Electromagnetic transducer and portable communication device

Publications (2)

Publication Number Publication Date
DE60120100D1 true DE60120100D1 (de) 2006-07-06
DE60120100T2 DE60120100T2 (de) 2006-09-21

Family

ID=18655222

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60120100T Expired - Lifetime DE60120100T2 (de) 2000-05-22 2001-04-16 Elektromagnetischer wandler sowie tragbares kommunikationsgerät

Country Status (6)

Country Link
US (1) US6920230B2 (de)
EP (1) EP1224838B1 (de)
CN (1) CN1165202C (de)
DE (1) DE60120100T2 (de)
TW (1) TW573436B (de)
WO (1) WO2001091514A1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1179285B1 (de) * 1999-05-14 2004-04-07 Matsushita Electric Industrial Co., Ltd. Elektromagnetischer wandler und tragbares kommunikationsgerät
CN1943270B (zh) * 2004-04-05 2012-08-29 松下电器产业株式会社 扬声器装置
US7418106B2 (en) * 2004-06-21 2008-08-26 Nokia Corporation Apparatus and methods for increasing magnetic field in an audio device
US7577269B2 (en) * 2006-08-28 2009-08-18 Technology Properties Limited Acoustic transducer
WO2008038759A1 (fr) * 2006-09-29 2008-04-03 Panasonic Corporation Haut-parleur
CN101204700B (zh) * 2006-12-19 2012-08-08 重庆融海超声医学工程研究中心有限公司 电磁式超声换能器及其阵列
EP2007167A3 (de) * 2007-06-21 2013-01-23 Funai Electric Advanced Applied Technology Research Institute Inc. Spracheingabe-/Ausgabevorrichtung und Kommunikationsvorrichtung
JP5084445B2 (ja) * 2007-10-26 2012-11-28 三菱電機エンジニアリング株式会社 電磁変換器
CN201839419U (zh) * 2010-05-10 2011-05-18 瑞声声学科技(深圳)有限公司 多功能振动器件
US20110293120A1 (en) * 2010-05-25 2011-12-01 Timothy Val Kolton Earphone transducer
US8831248B2 (en) * 2010-08-04 2014-09-09 Nokia Corporation Apparatus with directivity pattern
US9197965B2 (en) 2013-03-15 2015-11-24 James J. Croft, III Planar-magnetic transducer with improved electro-magnetic circuit
RU2739733C1 (ru) * 2017-10-25 2020-12-28 Пс Аудио Дизайн Ой Преобразователь
CN112041090B (zh) * 2018-06-11 2021-09-07 华为技术有限公司 电子设备用磁铁激励器以及包括所述磁铁激励器的电子设备
CN113262972B (zh) * 2021-05-17 2022-03-11 湖南大学 一种电磁结构及电磁换能器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4976732A (de) 1972-11-27 1974-07-24
JPS58171198A (ja) * 1982-04-01 1983-10-07 Seiko Instr & Electronics Ltd 電磁形スピ−カ
NL8501650A (nl) * 1985-06-07 1987-01-02 Philips Nv Elektrodynamische omzetter met een tweedelig membraan.
KR920002929Y1 (ko) * 1990-02-17 1992-05-08 이정기 스피커
US5218337A (en) * 1992-02-10 1993-06-08 Atoma International Inc. Automotive vehicle tone generator
JPH0879890A (ja) 1994-09-08 1996-03-22 Fuji Elelctrochem Co Ltd 可動鉄片型スピーカ
KR100343303B1 (ko) * 1998-11-04 2002-07-15 모리시타 요이찌 전자형 전기 음향 변환기
EP1179285B1 (de) * 1999-05-14 2004-04-07 Matsushita Electric Industrial Co., Ltd. Elektromagnetischer wandler und tragbares kommunikationsgerät
JP2001078295A (ja) * 1999-09-07 2001-03-23 Matsushita Electric Ind Co Ltd 電磁型電気音響変換器
US6449376B1 (en) * 1999-09-20 2002-09-10 Boston Acoustics, Inc. Planar-type loudspeaker with at least two diaphragms
CN1391779A (zh) * 1999-12-02 2003-01-15 Nec东金株式会社 具有一个在悬挂板与磁路装置之间的弹性件的振动致动器

Also Published As

Publication number Publication date
CN1165202C (zh) 2004-09-01
WO2001091514A9 (en) 2002-05-23
WO2001091514A1 (en) 2001-11-29
TW573436B (en) 2004-01-21
EP1224838A4 (de) 2005-10-05
CN1372781A (zh) 2002-10-02
US20020136424A1 (en) 2002-09-26
DE60120100T2 (de) 2006-09-21
EP1224838B1 (de) 2006-05-31
EP1224838A1 (de) 2002-07-24
US6920230B2 (en) 2005-07-19

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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: PANASONIC CORP., KADOMA, OSAKA, JP