NL176992C - ELECTRO ACOUSTIC CONVERTER. - Google Patents

ELECTRO ACOUSTIC CONVERTER.

Info

Publication number
NL176992C
NL176992C NL7703582A NL7703582A NL176992C NL 176992 C NL176992 C NL 176992C NL 7703582 A NL7703582 A NL 7703582A NL 7703582 A NL7703582 A NL 7703582A NL 176992 C NL176992 C NL 176992C
Authority
NL
Netherlands
Prior art keywords
acoustic converter
electro acoustic
electro
converter
acoustic
Prior art date
Application number
NL7703582A
Other languages
Dutch (nl)
Other versions
NL7703582A (en
NL176992B (en
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
Priority claimed from JP3766076A external-priority patent/JPS52120820A/en
Priority claimed from JP1976080460U external-priority patent/JPS553760Y2/ja
Priority claimed from JP10860876A external-priority patent/JPS5333613A/en
Priority claimed from JP1976137541U external-priority patent/JPS5411860Y2/ja
Priority claimed from JP13075176A external-priority patent/JPS5355113A/en
Priority claimed from JP1976145964U external-priority patent/JPS5411861Y2/ja
Priority claimed from JP16366976U external-priority patent/JPS5380437U/ja
Priority claimed from JP167877A external-priority patent/JPS5387215A/en
Application filed by Matsushita Electric Ind Co Ltd filed Critical Matsushita Electric Ind Co Ltd
Publication of NL7703582A publication Critical patent/NL7703582A/en
Publication of NL176992B publication Critical patent/NL176992B/en
Publication of NL176992C publication Critical patent/NL176992C/en
Application granted granted Critical

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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H04R17/02—Microphones
    • H04R17/025—Microphones using a piezoelectric polymer
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/006—Interconnection of transducer parts
NL7703582A 1976-04-02 1977-04-01 ELECTRO ACOUSTIC CONVERTER. NL176992C (en)

Applications Claiming Priority (8)

Application Number Priority Date Filing Date Title
JP3766076A JPS52120820A (en) 1976-04-02 1976-04-02 Electroacoustic transducer
JP1976080460U JPS553760Y2 (en) 1976-06-18 1976-06-18
JP10860876A JPS5333613A (en) 1976-09-09 1976-09-09 Microphone and its manufacture
JP1976137541U JPS5411860Y2 (en) 1976-10-12 1976-10-12
JP13075176A JPS5355113A (en) 1976-10-29 1976-10-29 Microphone
JP1976145964U JPS5411861Y2 (en) 1976-10-29 1976-10-29
JP16366976U JPS5380437U (en) 1976-12-06 1976-12-06
JP167877A JPS5387215A (en) 1977-01-10 1977-01-10 Piezpo-electric microphone and its manufacture

Publications (3)

Publication Number Publication Date
NL7703582A NL7703582A (en) 1977-10-04
NL176992B NL176992B (en) 1985-02-01
NL176992C true NL176992C (en) 1985-07-01

Family

ID=27571446

Family Applications (1)

Application Number Title Priority Date Filing Date
NL7703582A NL176992C (en) 1976-04-02 1977-04-01 ELECTRO ACOUSTIC CONVERTER.

Country Status (3)

Country Link
DE (1) DE2714709C3 (en)
GB (1) GB1565860A (en)
NL (1) NL176992C (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5675686A (en) * 1979-11-26 1981-06-22 Kureha Chem Ind Co Ltd Ultrasonic video device
FR2511571A1 (en) * 1981-08-11 1983-02-18 Thomson Csf ELECTROACOUSTIC TRANSDUCER WITH CONDENSER WITH POLARIZED SOLID DIELECTRIC
FR2511570A1 (en) * 1981-08-11 1983-02-18 Thomson Csf ELECTROACOUSTIC TRANSDUCER WITH PIEZOELECTRIC POLYMER
FR2651633B1 (en) * 1989-09-01 1992-04-30 Thomson Consumer Electronics ELEMENT AND DEVICES FOR ELECTROACOUSTIC TRANSDUCERS WITH PIEZOELECTRIC POLYMER BIMORPH, IN PARTICULAR FOR THE PRODUCTION OF A SPEAKER WITH LINEAR RADIATION DIAGRAM.
CN104684485A (en) 2012-05-11 2015-06-03 3M创新有限公司 Bioacoustic sensor with noise vibration control
KR20210007733A (en) * 2019-07-12 2021-01-20 현대자동차주식회사 Microphone and manufacturing method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127950B (en) * 1960-01-12 1962-04-19 Sennheiser Electronic Electroacoustic transducer with a plate-shaped transducer element
DE1270115B (en) * 1964-01-08 1968-06-12 Standard Elektrik Lorenz Ag Electrodynamic converter in telecommunications, especially dynamic earphone capsule
JPS5745760Y2 (en) * 1974-02-18 1982-10-08
JPS5215972B2 (en) * 1974-02-28 1977-05-06

Also Published As

Publication number Publication date
DE2714709B2 (en) 1979-09-27
DE2714709C3 (en) 1984-10-18
NL7703582A (en) 1977-10-04
DE2714709A1 (en) 1977-10-06
GB1565860A (en) 1980-04-23
NL176992B (en) 1985-02-01

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Legal Events

Date Code Title Description
BC A request for examination has been filed
A85 Still pending on 85-01-01
V1 Lapsed because of non-payment of the annual fee