JPS4912598Y1 - - Google Patents

Info

Publication number
JPS4912598Y1
JPS4912598Y1 JP1970069759U JP6975970U JPS4912598Y1 JP S4912598 Y1 JPS4912598 Y1 JP S4912598Y1 JP 1970069759 U JP1970069759 U JP 1970069759U JP 6975970 U JP6975970 U JP 6975970U JP S4912598 Y1 JPS4912598 Y1 JP S4912598Y1
Authority
JP
Japan
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
JP1970069759U
Other languages
Japanese (ja)
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 filed Critical
Priority to JP1970069759U priority Critical patent/JPS4912598Y1/ja
Priority to DE2134706A priority patent/DE2134706B2/de
Priority to FR7125768A priority patent/FR2100906B1/fr
Priority to CA118,040A priority patent/CA953017A/en
Priority to GB3313871A priority patent/GB1352407A/en
Priority to US00373816A priority patent/US3821492A/en
Publication of JPS4912598Y1 publication Critical patent/JPS4912598Y1/ja
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
    • H04R19/00—Electrostatic transducers
    • H04R19/01—Electrostatic transducers characterised by the use of electrets
    • H04R19/013—Electrostatic transducers characterised by the use of electrets for loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R19/00—Electrostatic transducers
    • H04R19/02—Loudspeakers
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
JP1970069759U 1970-07-14 1970-07-14 Expired JPS4912598Y1 (da)

Priority Applications (6)

Application Number Priority Date Filing Date Title
JP1970069759U JPS4912598Y1 (da) 1970-07-14 1970-07-14
DE2134706A DE2134706B2 (de) 1970-07-14 1971-07-12 Elektrostatisch-elektroakustischer Wandler mit einer in Teile mit unterschiedlichen Eigenresonanzen unterteilten Membran
FR7125768A FR2100906B1 (da) 1970-07-14 1971-07-13
CA118,040A CA953017A (en) 1970-07-14 1971-07-13 Electrostatic electroacoustic transducer
GB3313871A GB1352407A (en) 1970-07-14 1971-07-14 Electrostatic electroacoustic transducer
US00373816A US3821492A (en) 1970-07-14 1973-06-26 Electret transducer having two diaphragms

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1970069759U JPS4912598Y1 (da) 1970-07-14 1970-07-14

Publications (1)

Publication Number Publication Date
JPS4912598Y1 true JPS4912598Y1 (da) 1974-03-28

Family

ID=13412034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1970069759U Expired JPS4912598Y1 (da) 1970-07-14 1970-07-14

Country Status (6)

Country Link
US (1) US3821492A (da)
JP (1) JPS4912598Y1 (da)
CA (1) CA953017A (da)
DE (1) DE2134706B2 (da)
FR (1) FR2100906B1 (da)
GB (1) GB1352407A (da)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA989514A (en) * 1972-09-08 1976-05-18 Loh-Yi Chang Electromechanical transducer and method of making same
US3980838A (en) * 1974-02-20 1976-09-14 Tokyo Shibaura Electric Co., Ltd. Plural electret electroacoustic transducer
US3894243A (en) * 1974-06-06 1975-07-08 Us Navy Polymeric transducer array
US3970862A (en) * 1974-06-25 1976-07-20 The United States Of America As Represented By The Secretary Of The Navy Polymeric sensor of vibration and dynamic pressure
CA1025994A (en) * 1975-07-08 1978-02-07 Uniroyal Ltd. Electromechanical transducer
US4379951A (en) * 1977-04-20 1983-04-12 Gabr Saad Z M Electro-acoustic transducer means
NL7802688A (nl) * 1978-03-13 1979-09-17 Philips Nv Inrichting voor het omzetten van akoestische in elektrische trillingen en omgekeerd, voor- zien van tenminste een kondensator elektreet- element aangesloten op een elektronische schakeling.
US4207442A (en) * 1978-05-15 1980-06-10 Freeman Miller L Driver circuit for electrostatic transducers
DE3003178C2 (de) * 1980-01-30 1983-08-04 Sennheiser Electronic Kg, 3002 Wedemark Elektroakustischer Wandler nach dem elektrostatischem Prinzip
CH642504A5 (en) * 1981-06-01 1984-04-13 Asulab Sa Hybrid electroacoustic transducer
DK572483A (da) * 1983-08-19 1985-02-20 Lectret Sa Akustisk transor og fremgangsmaade til fremstilling af denne
US4872148A (en) * 1984-03-08 1989-10-03 Polaroid Corporation Ultrasonic transducer for use in a corrosive/abrasive environment
US5054081B1 (en) * 1985-04-02 1994-06-28 Roger A West Electrostatic transducer with improved bass response utilizing distributed bass resonance energy
CA1284837C (en) * 1987-06-18 1991-06-11 Highwood Audio Inc. Audio transducer
WO1995014362A1 (de) * 1993-11-14 1995-05-26 Koenig Florian Meinhard Mehrkanalkopfhörer mit gesteuerter abstrahlcharakteristik
US20060082158A1 (en) * 2004-10-15 2006-04-20 Schrader Jeffrey L Method and device for supplying power from acoustic energy
TWM344699U (en) * 2008-05-08 2008-11-11 Jetvox Acoustic Corp Dual band coaxial earphone
US8855350B2 (en) * 2009-04-28 2014-10-07 Cochlear Limited Patterned implantable electret microphone
EP2553944A4 (en) * 2010-03-30 2016-03-23 Cochlear Ltd ELECTRIC MICROPHONE WITH LOW NOISE DEVELOPMENT
TWI483623B (zh) * 2012-09-14 2015-05-01 Fortune Grand Technology Inc 揚聲器單體
CN106028228B (zh) * 2016-07-25 2021-06-11 山东共达电声股份有限公司 一种振膜及具有该振膜的音响设备
USD1000422S1 (en) * 2021-04-14 2023-10-03 Crestron Electronics, Inc. Loudspeaker grille

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR34837E (da) * 1927-10-21
DE494221C (de) * 1926-06-05 1930-03-20 Vogt Hans Einrichtung zur Umsetzung akustischer Schwingungen in elektrische und umgekehrt vermittels elektrostatischer Felder

Also Published As

Publication number Publication date
DE2134706A1 (de) 1972-01-20
DE2134706B2 (de) 1974-04-18
CA953017A (en) 1974-08-13
GB1352407A (en) 1974-05-08
FR2100906B1 (da) 1975-10-10
US3821492A (en) 1974-06-28
FR2100906A1 (da) 1972-03-24

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