JPS5765092A - Microphone in common use with speaker - Google Patents

Microphone in common use with speaker

Info

Publication number
JPS5765092A
JPS5765092A JP14127680A JP14127680A JPS5765092A JP S5765092 A JPS5765092 A JP S5765092A JP 14127680 A JP14127680 A JP 14127680A JP 14127680 A JP14127680 A JP 14127680A JP S5765092 A JPS5765092 A JP S5765092A
Authority
JP
Japan
Prior art keywords
film
microphone
speaker
diaphragm plate
piezoelectric film
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.)
Granted
Application number
JP14127680A
Other languages
Japanese (ja)
Other versions
JPS6161759B2 (en
Inventor
Hironoshin Mori
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.)
Seiko Instruments Inc
Original Assignee
Seiko Instruments Inc
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 Seiko Instruments Inc filed Critical Seiko Instruments Inc
Priority to JP14127680A priority Critical patent/JPS5765092A/en
Publication of JPS5765092A publication Critical patent/JPS5765092A/en
Publication of JPS6161759B2 publication Critical patent/JPS6161759B2/ja
Granted 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
    • H04R23/00—Transducers other than those covered by groups H04R9/00 - H04R21/00
    • H04R23/02—Transducers using more than one principle simultaneously

Abstract

PURPOSE:To make easy the design of a small-sized acoustic device without lowering the performance, by using high polymer piezoelectric element for diaphragm plate and giving a function as the diaphragm plate for a microphone, in electromagnetic or drnamic type elector-acoustic converter with sound discharging construction using double diaphragm plates. CONSTITUTION:A magnet 14 which is formed by winding a coil 15 on a magnetic core 16 under a supporting frame 17 of cylindrical type is fitted by turning it upside. A diaphragm plate 12 having a moving iron 13 with a specified size on the upper side is provided by opposing to the magnet 14, a piezoelectric film 9 is covered on it and a speaker frame 18 is provided on the supporting frame 17 including it. With this constitution, as a piezoelectric film 9, a high polymer piezoelectric film having a resonance point at high frequencies is used. When it is used as a microphone, the film is functioned as a diaphragm plate and when it is used as a speaker, it is used as a sound dissipating plate. If the resonance frequency is too low only with the film, plastic or metallic base is sticked to the film. Thus, the elasticity is controlled for the microphone and the inertia is done for the speaker.
JP14127680A 1980-10-09 1980-10-09 Microphone in common use with speaker Granted JPS5765092A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14127680A JPS5765092A (en) 1980-10-09 1980-10-09 Microphone in common use with speaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14127680A JPS5765092A (en) 1980-10-09 1980-10-09 Microphone in common use with speaker

Publications (2)

Publication Number Publication Date
JPS5765092A true JPS5765092A (en) 1982-04-20
JPS6161759B2 JPS6161759B2 (en) 1986-12-26

Family

ID=15288119

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14127680A Granted JPS5765092A (en) 1980-10-09 1980-10-09 Microphone in common use with speaker

Country Status (1)

Country Link
JP (1) JPS5765092A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5430803A (en) * 1992-03-31 1995-07-04 Soei Electric Co., Ltd. Bifunctional earphone set
US6028752A (en) * 1992-06-22 2000-02-22 Texas Instruments Incorporated Miniature device for receiving and playing back sound with piezoelectric component as combination microphone/loud speaker
WO2000060900A3 (en) * 1999-04-07 2001-02-15 Ericsson Inc Hearing aid compatible piezoelectric speaker
US7036605B2 (en) 2000-03-16 2006-05-02 Makita Corporation Power tools
WO2017126114A1 (en) * 2016-01-22 2017-07-27 株式会社パトライト Buzzer unit and signal indicator light

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5430803A (en) * 1992-03-31 1995-07-04 Soei Electric Co., Ltd. Bifunctional earphone set
US6028752A (en) * 1992-06-22 2000-02-22 Texas Instruments Incorporated Miniature device for receiving and playing back sound with piezoelectric component as combination microphone/loud speaker
WO2000060900A3 (en) * 1999-04-07 2001-02-15 Ericsson Inc Hearing aid compatible piezoelectric speaker
US6658126B1 (en) 1999-04-07 2003-12-02 Ericsson Inc. Hearing aid compatible piezoelectric speaker
US7036605B2 (en) 2000-03-16 2006-05-02 Makita Corporation Power tools
US7896098B2 (en) 2000-03-16 2011-03-01 Makita Corporation Power tools
US8210275B2 (en) 2000-03-16 2012-07-03 Makita Corporation Power tools
WO2017126114A1 (en) * 2016-01-22 2017-07-27 株式会社パトライト Buzzer unit and signal indicator light
US10297243B2 (en) 2016-01-22 2019-05-21 Patlite Corporation Buzzer unit and signal indicator light

Also Published As

Publication number Publication date
JPS6161759B2 (en) 1986-12-26

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