FR2234729B1 - - Google Patents

Info

Publication number
FR2234729B1
FR2234729B1 FR7421309A FR7421309A FR2234729B1 FR 2234729 B1 FR2234729 B1 FR 2234729B1 FR 7421309 A FR7421309 A FR 7421309A FR 7421309 A FR7421309 A FR 7421309A FR 2234729 B1 FR2234729 B1 FR 2234729B1
Authority
FR
France
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
Application number
FR7421309A
Other versions
FR2234729A1 (fr
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.)
AKG Acoustics GmbH
Original Assignee
AKG Akustische und Kino Geraete 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 AKG Akustische und Kino Geraete GmbH filed Critical AKG Akustische und Kino Geraete GmbH
Publication of FR2234729A1 publication Critical patent/FR2234729A1/fr
Application granted granted Critical
Publication of FR2234729B1 publication Critical patent/FR2234729B1/fr
Expired 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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/24—Structural combinations of separate transducers or of two parts of the same transducer and responsive respectively to two or more frequency ranges
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers
FR7421309A 1973-06-19 1974-06-19 Expired FR2234729B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT540673A AT323823B (de) 1973-06-19 1973-06-19 Schallsender nach dem zweinegsystem, insbesondere für kopphörer

Publications (2)

Publication Number Publication Date
FR2234729A1 FR2234729A1 (fr) 1975-01-17
FR2234729B1 true FR2234729B1 (fr) 1982-07-09

Family

ID=3575453

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7421309A Expired FR2234729B1 (fr) 1973-06-19 1974-06-19

Country Status (8)

Country Link
US (1) US3943304A (fr)
JP (1) JPS5628439B2 (fr)
AT (1) AT323823B (fr)
CA (1) CA998162A (fr)
DE (1) DE2428933C2 (fr)
FR (1) FR2234729B1 (fr)
GB (1) GB1426142A (fr)
IT (1) IT1015147B (fr)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4379951A (en) * 1977-04-20 1983-04-12 Gabr Saad Z M Electro-acoustic transducer means
DE3024777C2 (de) * 1979-06-30 1982-11-04 Pioneer Electronic Corp., Tokyo Koaxiale Mehrwegelautsprecheranlage mit planarer Membran
AT366862B (de) * 1980-07-28 1982-05-10 Akg Akustische Kino Geraete Elektroakustischer wandler nach dem zweiwegprinzip
CH642504A5 (en) * 1981-06-01 1984-04-13 Asulab Sa Hybrid electroacoustic transducer
US4418248A (en) * 1981-12-11 1983-11-29 Koss Corporation Dual element headphone
US4511768A (en) * 1982-10-29 1985-04-16 Motorola, Inc. Mounting arrangement for altering a microphone's frequency response
US4554414A (en) * 1983-04-28 1985-11-19 Harman International Industries Incorporated Multi-driver loudspeaker
US4644505A (en) * 1984-06-11 1987-02-17 The United States Of America As Represented By The Secretary Of The Navy Broadband matching network
US4764690A (en) * 1986-06-18 1988-08-16 Lectret S.A. Electret transducing
US4981194A (en) * 1987-10-30 1991-01-01 Sony Corporation Electro-acoustic transducer
US4965836A (en) * 1989-01-19 1990-10-23 Koss Corporation Stereo headphone
JPH04102394U (ja) * 1991-01-30 1992-09-03 株式会社ホンダアクセス 自動２輪車用通信装置のマイク
US7006638B1 (en) * 1994-08-30 2006-02-28 Bang & Olufsen Technology A/S Electronic stethoscope
GB2305063A (en) * 1995-09-07 1997-03-26 Noise Cancellation Tech Headset with means to limit cushion compression
US6356644B1 (en) * 1998-02-20 2002-03-12 Sony Corporation Earphone (surround sound) speaker
US6263085B1 (en) * 1999-07-01 2001-07-17 Sergio W. Weffer Surround sound headphones
DE20001526U1 (de) * 2000-01-28 2001-06-13 Koenig Florian M Aufwertung des Höhen-Klangbildes bei Kopfhörern
JP4281937B2 (ja) * 2000-02-02 2009-06-17 パナソニック株式会社 ヘッドホンシステム
US7065224B2 (en) * 2001-09-28 2006-06-20 Sonionmicrotronic Nederland B.V. Microphone for a hearing aid or listening device with improved internal damping and foreign material protection
US7155025B1 (en) 2002-08-30 2006-12-26 Weffer Sergio W Surround sound headphone system
US7289641B2 (en) * 2004-03-22 2007-10-30 Cotron Corporation Multiple channel earphone
CN1816219B (zh) * 2005-02-04 2011-11-23 固昌通讯股份有限公司 多声道耳机
DE102005005759A1 (de) * 2005-02-07 2006-08-17 Ultrasone Ag Raumklang-Kopfhörer mit Hörhöchstfrequenzanhebung
US7925307B2 (en) * 2006-10-31 2011-04-12 Palm, Inc. Audio output using multiple speakers
US8300871B2 (en) * 2007-11-05 2012-10-30 Mwm Acoustics, Llc Earphone for wideband communication
US20090136052A1 (en) * 2007-11-27 2009-05-28 David Clark Company Incorporated Active Noise Cancellation Using a Predictive Approach
CN101888583B (zh) * 2009-05-12 2013-03-20 志丰电子股份有限公司 具有电容性致动器的耳机
TW201216725A (en) * 2010-10-06 2012-04-16 Cotron Corp Earphone
GB2486688A (en) * 2010-12-22 2012-06-27 Wolfson Microelectronics Plc Speaker system using several low-frequency loudspeakers around a high-frequency loudspeaker
US20120308067A1 (en) * 2011-06-01 2012-12-06 Wai Hung Ip Headphone 3D Hearing technology
WO2014089719A1 (fr) * 2012-12-10 2014-06-19 Teng Ko-Chung Structure améliorée d'écouteur
DE102013222231A1 (de) * 2013-10-31 2015-04-30 Sennheiser Electronic Gmbh & Co. Kg Hörer
TWM482225U (zh) * 2014-03-28 2014-07-11 Verisonix Corp 整合式靜電耳機單體模組之結構改良
US20170142520A1 (en) * 2014-08-17 2017-05-18 Verisonix Corporation Hybrid electrostatic headphone module
TWM499720U (zh) * 2014-10-31 2015-04-21 Jetvox Acoustic Corp 壓電陶瓷雙頻耳機結構
WO2016127119A1 (fr) * 2015-02-06 2016-08-11 Clean Energy Labs, Llc Haut-parleur doté de transducteurs à membrane électroconductrice
CN104967958B (zh) * 2015-05-08 2018-08-10 东莞泉声电子有限公司 高音质压电式扬声器
US10687148B2 (en) 2016-01-28 2020-06-16 Sonion Nederland B.V. Assembly comprising an electrostatic sound generator and a transformer
US11012788B2 (en) * 2018-03-27 2021-05-18 Sony Corporation Loudspeaker system
WO2020014734A1 (fr) * 2018-07-17 2020-01-23 Blueprint Acoustics Pty Ltd Filtre acoustique pour transducteur électro-acoustique coaxial
TWM610874U (zh) * 2020-12-14 2021-04-21 茂宇科技股份有限公司 同軸駐極體揚聲器

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615994A (en) * 1948-12-14 1952-10-28 Lindenberg Theodore Diaphragm for electrostatic loud-speakers
US3008013A (en) * 1954-07-20 1961-11-07 Ferranti Ltd Electrostatic loudspeakers
US2922851A (en) * 1957-05-10 1960-01-26 Gen Dynamics Corp Loudspeakers
AT224180B (de) * 1961-04-28 1962-11-12 Akg Akustische Kino Geraete Dynamischer Kopfhörer nach dem Zweiwegsystem
US3632903A (en) * 1970-10-28 1972-01-04 Koss Electronics Inc Electrostatic headphone
CH528197A (de) * 1971-12-20 1972-09-15 Ibm Gehäuseanordnung mit einem elektro-akustischen Wandler, und Verwendung derselben in einem Telefonapparat einer Nachrichtenübertragungsanlage mit PCM-Codierung

Also Published As

Publication number Publication date
DE2428933C2 (de) 1982-12-16
CA998162A (en) 1976-10-05
IT1015147B (it) 1977-05-10
JPS5628439B2 (fr) 1981-07-01
GB1426142A (en) 1976-02-25
AT323823B (de) 1975-07-25
US3943304A (en) 1976-03-09
FR2234729A1 (fr) 1975-01-17
JPS5037423A (fr) 1975-04-08
DE2428933A1 (de) 1975-01-23

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Legal Events

Date Code Title Description
ST Notification of lapse