TW353849B - Electric-to-mechanical-to-acoustic converter and portable terminal unit - Google Patents

Electric-to-mechanical-to-acoustic converter and portable terminal unit

Info

Publication number
TW353849B
TW353849B TW086117709A TW86117709A TW353849B TW 353849 B TW353849 B TW 353849B TW 086117709 A TW086117709 A TW 086117709A TW 86117709 A TW86117709 A TW 86117709A TW 353849 B TW353849 B TW 353849B
Authority
TW
Taiwan
Prior art keywords
mechanical
electric
diaphragm
portable terminal
terminal unit
Prior art date
Application number
TW086117709A
Other languages
English (en)
Inventor
Shuji Saiki
Sawako Usuki
Mitsukazu Kuze
Original Assignee
Matsushita Electric Ind 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 Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Application granted granted Critical
Publication of TW353849B publication Critical patent/TW353849B/zh

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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/02—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • 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
    • H04M—TELEPHONIC COMMUNICATION
    • H04M19/00—Current supply arrangements for telephone systems
    • H04M19/02—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone
    • H04M19/04—Current supply arrangements for telephone systems providing ringing current or supervisory tones, e.g. dialling tone or busy tone the ringing-current being generated at the substations
    • H04M19/047—Vibrating means for incoming calls
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/03—Transducers capable of generating both sound as well as tactile vibration, e.g. as used in cellular phones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2400/00—Loudspeakers
    • H04R2400/07—Suspension between moving magnetic core and housing

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Electromagnetism (AREA)
  • Multimedia (AREA)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
  • Details Of Audible-Bandwidth Transducers (AREA)
TW086117709A 1996-11-29 1997-11-25 Electric-to-mechanical-to-acoustic converter and portable terminal unit TW353849B (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP31896696 1996-11-29
JP15411797 1997-06-11
JP15630497 1997-06-13

Publications (1)

Publication Number Publication Date
TW353849B true TW353849B (en) 1999-03-01

Family

ID=27320601

Family Applications (1)

Application Number Title Priority Date Filing Date
TW086117709A TW353849B (en) 1996-11-29 1997-11-25 Electric-to-mechanical-to-acoustic converter and portable terminal unit

Country Status (7)

Country Link
US (1) US6208237B1 (zh)
EP (1) EP0845920B1 (zh)
KR (1) KR100272305B1 (zh)
CN (2) CN1144499C (zh)
DE (1) DE69736051T2 (zh)
HK (2) HK1015603A1 (zh)
TW (1) TW353849B (zh)

Families Citing this family (112)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6618487B1 (en) 1996-09-03 2003-09-09 New Transducers Limited Electro-dynamic exciter
DE69804199T2 (de) 1997-01-09 2002-07-18 New Transducers Ltd Lautsprecher
US6259935B1 (en) * 1997-06-24 2001-07-10 Matsushita Electrical Industrial Co., Ltd. Electro-mechanical-acoustic transducing device
JP3680562B2 (ja) * 1997-10-30 2005-08-10 松下電器産業株式会社 電気−機械−音響変換器及びその製造法
ID25920A (id) * 1998-01-08 2000-11-09 Sanyo Electric Co Peralatan peringatan dan sistem komunikasi tanpa kabel yang mengandungnya
CN1277625C (zh) * 1998-02-06 2006-10-04 并木精密宝石株式会社 电磁式驱动器及其安装构造
KR100594674B1 (ko) * 1998-06-29 2006-06-30 마츠시타 덴끼 산교 가부시키가이샤 전기-기계/음향 변환기 및 이것을 이용한 전기-기계/음향 변환 장치
JP4276315B2 (ja) * 1998-11-17 2009-06-10 シチズン電子株式会社 電磁型発音体
TW475315B (en) * 1999-04-13 2002-02-01 Tokin Corp Vibration actuator having three vibration modes
DE60040763D1 (de) * 1999-04-14 2008-12-18 Matsushita Electric Ind Co Ltd Elektromechanischer akustischer Wandler
TW472494B (en) * 1999-05-14 2002-01-11 Matsushita Electric Ind Co Ltd Electromagnetic transducer and portable communication device
JP3344385B2 (ja) * 1999-10-22 2002-11-11 ヤマハ株式会社 振動源駆動装置
US6487300B1 (en) * 1999-12-17 2002-11-26 Samsung Electro-Mechanics Co., Ltd. Vibration speaker
JP2001218296A (ja) * 2000-02-04 2001-08-10 Star Micronics Co Ltd 電磁音響変換器
JP2001353471A (ja) * 2000-04-14 2001-12-25 Tokin Corp 多機能振動アクチュエータ
JP4630957B2 (ja) * 2000-06-16 2011-02-09 並木精密宝石株式会社 電磁誘導型アクチュエータ装置並びに携帯用通信機器
JP2002119912A (ja) * 2000-10-12 2002-04-23 Nec Saitama Ltd 複合音響アクチュエータ駆動回路及び携帯情報端末
JP3830022B2 (ja) * 2000-12-15 2006-10-04 シチズン電子株式会社 多機能型発音体
US6560347B2 (en) * 2000-12-19 2003-05-06 Samsung Electro-Mechanics Co., Ltd. Multi actuator
US7019621B2 (en) * 2001-01-02 2006-03-28 Stanley E. Woodard Methods and apparatus to increase sound quality of piezoelectric devices
JP2002345084A (ja) * 2001-05-16 2002-11-29 Citizen Electronics Co Ltd スピーカ
JP2002361174A (ja) * 2001-06-11 2002-12-17 Namiki Precision Jewel Co Ltd 振動アクチュエータ装置
EP1271998B1 (en) * 2001-06-28 2008-04-16 Matsushita Electric Industrial Co., Ltd. Speaker system, mobile terminal device, and electronic device
US7194287B2 (en) * 2001-07-25 2007-03-20 Matsushita Electric Industrial Co., Ltd. Electric-mechanical-acoustic-transducer and portable communication device including the same
FI20020283A (fi) * 2001-08-17 2003-02-18 Samsung Electro Mech Monitoimielin
KR100419161B1 (ko) * 2001-08-22 2004-02-18 삼성전기주식회사 다기능 액츄에이터
JP3997280B2 (ja) * 2001-11-16 2007-10-24 株式会社ケンウッド 光音響変換装置の振動板構造
WO2003057375A1 (en) * 2001-12-28 2003-07-17 Namiki Seimitsu Houseki Kabushiki Kaisha Multi-functional vibrating actuator
DE10201232A1 (de) * 2002-01-09 2003-07-17 Valeo Schalter & Sensoren Gmbh Tongeber
KR100497084B1 (ko) * 2002-05-10 2005-07-01 (주)에스더블유피신우전자 다기능 전자음향변환기
WO2004006620A1 (ja) * 2002-07-04 2004-01-15 Nec Tokin Corporation 電気音響変換器
EP1543702A2 (en) * 2002-09-26 2005-06-22 Seiko Epson Corporation Drive mechanism
AU2003272919A1 (en) * 2002-10-25 2004-05-13 Matsushita Electric Industrial Co., Ltd. Suspension and electro-acoustic transducer using the suspension
CN2595101Y (zh) * 2002-12-03 2003-12-24 李金传 防背景噪音的免持听筒结构
JP4630958B2 (ja) * 2003-02-27 2011-02-09 並木精密宝石株式会社 多機能型アクチュエータ及び携帯端末機器
US7841533B2 (en) 2003-11-13 2010-11-30 Metrologic Instruments, Inc. Method of capturing and processing digital images of an object within the field of view (FOV) of a hand-supportable digitial image capture and processing system
JP4475993B2 (ja) * 2004-03-22 2010-06-09 並木精密宝石株式会社 多機能型振動アクチュエータ及び携帯端末機器
KR100550903B1 (ko) * 2004-06-23 2006-02-13 삼성전기주식회사 판 스프링을 구비하는 선형 진동모터 및 상기 판 스프링의공진주파수 보정 방법
US10158337B2 (en) 2004-08-10 2018-12-18 Bongiovi Acoustics Llc System and method for digital signal processing
US11431312B2 (en) 2004-08-10 2022-08-30 Bongiovi Acoustics Llc System and method for digital signal processing
US8284955B2 (en) 2006-02-07 2012-10-09 Bongiovi Acoustics Llc System and method for digital signal processing
US10848118B2 (en) 2004-08-10 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
KR100661921B1 (ko) * 2005-04-15 2006-12-27 삼성전기주식회사 진동 및 음향 발생장치와 이에 사용되는 요크
JP4592088B2 (ja) * 2005-05-30 2010-12-01 シチズン電子株式会社 振動体
DE102005025671B3 (de) * 2005-06-03 2006-12-21 Siemens Ag Verfahren und Vorrichtung zur Messung der spezifischen Dichte eines gasförmigen oder flüssigen Mediums
JP2007194907A (ja) * 2006-01-19 2007-08-02 Citizen Electronics Co Ltd 電気振動変換器
JP4551448B2 (ja) * 2006-01-24 2010-09-29 日本電信電話株式会社 加速度発生装置及び擬似力覚発生装置
US10069471B2 (en) 2006-02-07 2018-09-04 Bongiovi Acoustics Llc System and method for digital signal processing
US10701505B2 (en) 2006-02-07 2020-06-30 Bongiovi Acoustics Llc. System, method, and apparatus for generating and digitally processing a head related audio transfer function
US11202161B2 (en) 2006-02-07 2021-12-14 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
US9615189B2 (en) 2014-08-08 2017-04-04 Bongiovi Acoustics Llc Artificial ear apparatus and associated methods for generating a head related audio transfer function
US10848867B2 (en) 2006-02-07 2020-11-24 Bongiovi Acoustics Llc System and method for digital signal processing
EP1841278B1 (en) * 2006-03-27 2008-12-10 Jui-Chen Huang Loudspeaker with low-frequency oscillation
JP4784398B2 (ja) * 2006-05-29 2011-10-05 パナソニック株式会社 音響加振器およびこれを用いたスピーカ
CN200947673Y (zh) * 2006-09-13 2007-09-12 山西太微电声科技有限公司 一种肤触式电容振动拾音器
JP2008107374A (ja) * 2006-10-23 2008-05-08 Citizen Electronics Co Ltd 振動体
KR100726325B1 (ko) * 2006-11-28 2007-06-08 최성식 진동 스피커 및 그에 사용되는 페이스 플레이트 및 이를구비한 휴대 단말기
WO2008093728A1 (ja) * 2007-02-02 2008-08-07 Namiki Seimitsu Houseki Kabushikikaisha 多機能型振動アクチュエータ
KR100842093B1 (ko) * 2007-03-14 2008-06-30 주식회사 예일전자 감각 신호 출력 장치
JP4486134B2 (ja) * 2008-01-11 2010-06-23 株式会社アイ信 体感音響装置用電気−機械振動変換器
KR101009112B1 (ko) * 2009-05-04 2011-01-18 삼성전기주식회사 선형 진동 장치
EP2432252B1 (en) 2009-05-12 2016-05-25 Panasonic Intellectual Property Management Co., Ltd. Speaker and portable electronic device
CN101931843A (zh) * 2009-06-25 2010-12-29 幻响神州（北京）科技有限公司 音频振动装置
EP2355544A1 (en) * 2009-12-21 2011-08-10 Nxp B.V. Suspension member for a vibration actuator
EP2387251B1 (en) * 2010-05-11 2013-07-17 Nxp B.V. Sound reproduction and detection
JP2012060505A (ja) 2010-09-10 2012-03-22 On Semiconductor Trading Ltd 振動スピーカの駆動制御回路
JP2014504108A (ja) 2010-12-23 2014-02-13 ニーデルマン，ポール 薄型スピーカー
CN102026074A (zh) * 2010-12-29 2011-04-20 瑞声声学科技(深圳)有限公司 微型换能器件
TWI442788B (zh) 2011-01-19 2014-06-21 Speaker structure improvement
US8890375B2 (en) * 2012-07-05 2014-11-18 Aac Acoustic Technologies (Shenzhen) Co., Ltd. Multi-function vibrating device
EP2996208A4 (en) 2013-05-08 2016-04-20 Sumitomo Wiring Systems INTERCONNECTS
US9883318B2 (en) 2013-06-12 2018-01-30 Bongiovi Acoustics Llc System and method for stereo field enhancement in two-channel audio systems
US9264004B2 (en) 2013-06-12 2016-02-16 Bongiovi Acoustics Llc System and method for narrow bandwidth digital signal processing
US9906858B2 (en) 2013-10-22 2018-02-27 Bongiovi Acoustics Llc System and method for digital signal processing
CN103747399B (zh) * 2013-12-31 2018-02-16 瑞声声学科技(深圳)有限公司 多功能电声器件
CN104954934A (zh) * 2014-03-24 2015-09-30 联想(北京)有限公司 一种音频播放方法及电子设备
US10060881B2 (en) * 2014-04-16 2018-08-28 Texas Instruments Incorporated Surface sensing method for corrosion sensing via magnetic modulation
US10639000B2 (en) 2014-04-16 2020-05-05 Bongiovi Acoustics Llc Device for wide-band auscultation
US9615813B2 (en) 2014-04-16 2017-04-11 Bongiovi Acoustics Llc. Device for wide-band auscultation
US10820883B2 (en) 2014-04-16 2020-11-03 Bongiovi Acoustics Llc Noise reduction assembly for auscultation of a body
WO2015191047A1 (en) 2014-06-10 2015-12-17 The Regents Of The University Of Michigan Mechanical amplifier for energy harvester
US9861905B2 (en) 2014-07-16 2018-01-09 Traxxas Lp On-board audio system for a model vehicle
US9564146B2 (en) 2014-08-01 2017-02-07 Bongiovi Acoustics Llc System and method for digital signal processing in deep diving environment
USD834111S1 (en) 2014-10-01 2018-11-20 Traxxas Lp Transducer mount
US10009693B2 (en) * 2015-01-30 2018-06-26 Sonion Nederland B.V. Receiver having a suspended motor assembly
US9638672B2 (en) 2015-03-06 2017-05-02 Bongiovi Acoustics Llc System and method for acquiring acoustic information from a resonating body
CN204733374U (zh) * 2015-06-23 2015-10-28 瑞声光电科技(常州)有限公司 扬声器
CN204741558U (zh) * 2015-06-23 2015-11-04 瑞声光电科技(常州)有限公司 扬声器
WO2017087495A1 (en) * 2015-11-16 2017-05-26 Bongiovi Acoustics Llc Surface acoustic transducer
US9621994B1 (en) * 2015-11-16 2017-04-11 Bongiovi Acoustics Llc Surface acoustic transducer
US9998820B2 (en) * 2016-01-19 2018-06-12 Donald Pierce Bearden Acoustic resonator for audio headphones
KR20170114471A (ko) 2016-04-05 2017-10-16 엘지디스플레이 주식회사 유기발광 표시 장치
US10219079B2 (en) 2016-03-28 2019-02-26 Lg Display Co., Ltd. Display device for generating sound by vibrating panel
KR102663406B1 (ko) * 2016-04-04 2024-05-14 엘지디스플레이 주식회사 패널 진동형 음향 발생 액츄에이터 및 그를 포함하는 양면 표시 장치
KR101704517B1 (ko) 2016-03-28 2017-02-09 엘지디스플레이 주식회사 패널 진동형 음향 발생 표시 장치
DE102016108690A1 (de) * 2016-05-11 2017-11-16 Lofelt Gmbh Vibrierender Aktor
CN207369288U (zh) * 2017-08-31 2018-05-15 深圳市爱的声音响科技有限公司 一种一体化设计的骨传导驱动器
US10462560B2 (en) * 2018-01-08 2019-10-29 Skullcandy, Inc. Driver assemblies, headphones including driver assemblies, and related methods
JP2021521700A (ja) 2018-04-11 2021-08-26 ボンジョビ アコースティックス リミテッド ライアビリティー カンパニー オーディオ強化聴力保護システム
US20190379982A1 (en) * 2018-06-11 2019-12-12 Innovation Sound Technology Co., Ltd. Resonant loudspeaker for preventing dropping
US10959035B2 (en) 2018-08-02 2021-03-23 Bongiovi Acoustics Llc System, method, and apparatus for generating and digitally processing a head related audio transfer function
KR102080213B1 (ko) * 2018-11-02 2020-04-13 엘지디스플레이 주식회사 표시장치
US10848875B2 (en) 2018-11-30 2020-11-24 Google Llc Reinforced actuators for distributed mode loudspeakers
US10462574B1 (en) * 2018-11-30 2019-10-29 Google Llc Reinforced actuators for distributed mode loudspeakers
WO2020186488A1 (zh) * 2019-03-20 2020-09-24 深圳市集名科技有限公司 一种超薄发声震动驱动器、其u铁固定部件及线圈部件
CN210120658U (zh) * 2019-03-29 2020-02-28 瑞声光电科技(常州)有限公司 发声器件
WO2021000143A1 (zh) * 2019-06-30 2021-01-07 瑞声声学科技(深圳)有限公司 振动激励器
EP4005238A1 (en) 2019-07-31 2022-06-01 Google LLC Actuator module with improved damage resistance
US11843912B2 (en) * 2019-08-30 2023-12-12 Google Llc Suspension for moving magnet actuator
WO2021210699A1 (ko) * 2020-04-14 2021-10-21 주식회사 엠플러스 진동 및 음향 발생 장치를 포함하는 휴대 단말
KR102596461B1 (ko) * 2023-03-23 2023-10-31 아이모스시스템 주식회사 스피커와 진동기가 복합적으로 구현되는 액추에이터
CN116799485B (zh) * 2023-06-09 2024-02-20 武汉理工大学 一种超低频天线***

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5914491A (ja) 1982-07-12 1984-01-25 株式会社山武 ロボツトハンド
JPS5994997A (ja) 1983-10-22 1984-05-31 Bodeisonitsuku Kk 電気−機械振動変換器
JPS60145778A (ja) 1984-01-07 1985-08-01 Casio Comput Co Ltd ドツトマトリクス液晶表示パネルの駆動回路
JPS6121699A (ja) 1984-07-10 1986-01-30 Pioneer Electronic Corp 体感音響振動装置
JPH03274832A (ja) 1990-03-23 1991-12-05 Murata Mfg Co Ltd ブザー・アラーム切換装置
US5172092A (en) 1990-04-26 1992-12-15 Motorola, Inc. Selective call receiver having audible and tactile alerts
JP2768545B2 (ja) 1990-09-20 1998-06-25 オリンパス光学工業株式会社 Ｘ線光源装置
JPH04145874A (ja) 1990-10-01 1992-05-19 Koji Toda 振動子型アクチュエータの駆動回路
WO1992019018A1 (en) 1991-04-17 1992-10-29 Motorola, Inc. Piezo-electric resonant vibrator for a selective call receiver
US5528697A (en) 1991-05-17 1996-06-18 Namiki Precision Jewel Co., Ltd. Integrated vibrating and sound producing device
JPH0558192A (ja) 1991-09-03 1993-03-09 Toyota Motor Corp 居眠り運転検出装置
DE69220342T2 (de) 1991-12-20 1997-11-20 Matsushita Electric Ind Co Ltd Lautsprecherapparat zur Basswiedergabe
JPH05206989A (ja) 1992-01-29 1993-08-13 Aiphone Co Ltd 通話装置
JPH0716277B2 (ja) 1992-06-11 1995-02-22 株式会社ユピテック 振動発生体の構造および音響装置
JP2905350B2 (ja) 1992-11-18 1999-06-14 スター精密 株式会社 電気音響変換器
JP2733814B2 (ja) 1992-12-25 1998-03-30 株式会社ユピテック 音響振動発生装置
US5554096A (en) 1993-07-01 1996-09-10 Symphonix Implantable electromagnetic hearing transducer
JPH0757159A (ja) 1993-08-11 1995-03-03 Sayama Precision Ind Co 携帯装置の為の無音警報用振動発生装置
JPH07140984A (ja) 1993-11-17 1995-06-02 Tdk Corp 発音装置
US5524061A (en) 1994-08-29 1996-06-04 Motorola, Inc. Dual mode transducer for a portable receiver
US5546069A (en) 1994-11-17 1996-08-13 Motorola, Inc. Taut armature resonant impulse transducer
JPH08206599A (ja) 1995-02-07 1996-08-13 Seiko Instr Inc 振動による信号報知装置
JP3614937B2 (ja) 1995-06-05 2005-01-26 アスモ株式会社 移動体通信端末の呼出装置
JP3366507B2 (ja) 1995-09-05 2003-01-14 松下電器産業株式会社 振動発生装置
JP3493592B2 (ja) 1996-02-20 2004-02-03 Ｎｅｃトーキン株式会社 ペイジャー用振動アクチュエータ

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CN1501737A (zh) 2004-06-02
CN1144499C (zh) 2004-03-31
KR19980042920A (ko) 1998-08-17
DE69736051T2 (de) 2007-01-04
HK1063705A1 (en) 2005-01-07
EP0845920A3 (en) 1999-05-26
DE69736051D1 (de) 2006-07-20
CN1198071A (zh) 1998-11-04
KR100272305B1 (ko) 2000-11-15
EP0845920B1 (en) 2006-06-07
EP0845920A2 (en) 1998-06-03
US6208237B1 (en) 2001-03-27
HK1015603A1 (en) 1999-10-15
CN1239044C (zh) 2006-01-25

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