FR2463562B1 - - Google Patents

Info

Publication number
FR2463562B1
FR2463562B1 FR8017861A FR8017861A FR2463562B1 FR 2463562 B1 FR2463562 B1 FR 2463562B1 FR 8017861 A FR8017861 A FR 8017861A FR 8017861 A FR8017861 A FR 8017861A FR 2463562 B1 FR2463562 B1 FR 2463562B1
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
FR8017861A
Other languages
French (fr)
Other versions
FR2463562A1 (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.)
Seikosha KK
Original Assignee
Seikosha KK
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 Seikosha KK filed Critical Seikosha KK
Publication of FR2463562A1 publication Critical patent/FR2463562A1/fr
Application granted granted Critical
Publication of FR2463562B1 publication Critical patent/FR2463562B1/fr
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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
FR8017861A 1979-08-16 1980-08-13 Haut-parleur piezo-electrique Granted FR2463562A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP54104438A JPS5911237B2 (ja) 1979-08-16 1979-08-16 圧電スピ−カ

Publications (2)

Publication Number Publication Date
FR2463562A1 FR2463562A1 (fr) 1981-02-20
FR2463562B1 true FR2463562B1 (enExample) 1983-11-25

Family

ID=14380661

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8017861A Granted FR2463562A1 (fr) 1979-08-16 1980-08-13 Haut-parleur piezo-electrique

Country Status (7)

Country Link
US (1) US4386241A (enExample)
JP (1) JPS5911237B2 (enExample)
DE (1) DE3029422C2 (enExample)
FR (1) FR2463562A1 (enExample)
GB (1) GB2057225B (enExample)
HK (1) HK56685A (enExample)
SG (1) SG33485G (enExample)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4373119A (en) * 1980-12-05 1983-02-08 Motorola, Inc. Adjustable transducer
JPS57178795U (enExample) * 1981-05-07 1982-11-12
US4414436A (en) * 1982-04-19 1983-11-08 Pioneer Speaker Components, Inc. Narrow-frequency band acoustic transducer
DE3335431A1 (de) * 1983-03-18 1984-09-20 Siemens AG, 1000 Berlin und 8000 München Wandlerplatte fuer piezoelektrische wandler und vorrichtung zu deren herstellung
FR2579053B1 (fr) * 1985-03-15 1988-04-08 Elno Exploit Groupe Transducteur acousto-electrique, notamment pour microphones differentiels
DE3620557A1 (de) * 1986-06-19 1987-12-23 Reinhardt Fischer Elektroakustischer wandler
JP2701279B2 (ja) * 1987-12-28 1998-01-21 ヤマハ株式会社 音響装置
JP2605321B2 (ja) * 1987-12-28 1997-04-30 ヤマハ株式会社 音響装置
JPH0220997U (enExample) * 1988-07-26 1990-02-13
US5062139A (en) * 1989-06-05 1991-10-29 Christensen Eugene J Coaxial loud speaker system
US5181019A (en) * 1991-07-02 1993-01-19 Designtech International, Inc. Weighted transducer and driving circuit with feedback
FR2734685B1 (fr) * 1995-05-23 1997-08-14 Silec Liaisons Elec Haut-parleur piezoelectrique
US5938404A (en) * 1997-06-05 1999-08-17 Mcdonnell Douglas Helicopter Company Oscillating air jets on aerodynamic surfaces
US6543719B1 (en) 1997-06-05 2003-04-08 Mcdonnell Douglas Helicopter Co. Oscillating air jets for implementing blade variable twist, enhancing engine and blade efficiency, and reducing drag, vibration, download and ir signature
TW431113B (en) * 1998-04-22 2001-04-21 Hokuriku Elect Ind Piezoelectric acoustic device
AT411558B (de) * 1999-11-05 2004-02-25 Akg Acoustics Gmbh Elektroakustischer wandler
US6478541B1 (en) 2001-08-16 2002-11-12 The Boeing Company Tapered/segmented flaps for rotor blade-vortex interaction (BVI) noise and vibration reduction
EP1471768A4 (en) * 2002-01-30 2008-06-25 Matsushita Electric Industrial Co Ltd SPEAKER FOR PLAYBACK IN THE SUPER HIGH FREQUENCY RANGE
CA2748252C (en) * 2008-12-26 2014-05-27 Panasonic Electric Works Co., Ltd. Piezoelectric speaker, piezoelectric audio device employing piezoelectric speaker, and sensor with alert device attached
EP2661102A4 (en) * 2010-12-28 2017-11-01 NEC Corporation Vibration device and electronic apparatus
WO2012157691A1 (ja) * 2011-05-17 2012-11-22 株式会社村田製作所 平面型スピーカおよびａｖ機器
US9226078B2 (en) * 2013-03-15 2015-12-29 Emo Labs, Inc. Acoustic transducers
DE102017108594A1 (de) * 2017-04-21 2018-10-25 USound GmbH Lautsprechereinheit mit einem elektrodynamischen und einem MEMS-Lautsprecher
KR102775780B1 (ko) 2022-03-17 2025-03-06 썬전 샥 컴퍼니, 리미티드 음향출력장치

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2477596A (en) * 1947-08-29 1949-08-02 Brush Dev Co Electromechanical transducer device
US2607858A (en) * 1948-06-19 1952-08-19 Bell Telephone Labor Inc Electromechanical transducer
DE848206C (de) * 1951-01-14 1952-09-15 Telefunken Gmbh Kristallautsprechersystem
BE518496A (enExample) * 1952-03-18
US2910545A (en) * 1954-08-30 1959-10-27 Gen Electric Transducer
US3166730A (en) * 1959-09-29 1965-01-19 Jr James R Brown Annular electrostrictive transducer
US3588381A (en) * 1967-08-28 1971-06-28 Motorola Inc Transducer having spaced apart oppositely flexing piezoelectric members
US3721840A (en) * 1971-09-14 1973-03-20 Nittan Co Ltd Sound generator
US3786202A (en) * 1972-04-10 1974-01-15 Motorola Inc Acoustic transducer including piezoelectric driving element
GB2018548B (en) * 1978-04-07 1982-06-16 Matsushita Electric Industrial Co Ltd Piezoelectric speaker

Also Published As

Publication number Publication date
SG33485G (en) 1986-05-02
DE3029422C2 (de) 1986-04-03
DE3029422A1 (de) 1981-03-26
GB2057225B (en) 1983-10-12
GB2057225A (en) 1981-03-25
JPS5911237B2 (ja) 1984-03-14
JPS5628600A (en) 1981-03-20
FR2463562A1 (fr) 1981-02-20
HK56685A (en) 1985-08-09
US4386241A (en) 1983-05-31

Similar Documents

Publication Publication Date Title
FR2448339B1 (enExample)
FR2463562B1 (enExample)
BR8002583A (enExample)
FR2447401B1 (enExample)
BR8006808A (enExample)
FR2447768B1 (enExample)
FR2446005B1 (enExample)
FR2446105B1 (enExample)
FR2450674B3 (enExample)
FR2447413B1 (enExample)
FR2448589B1 (enExample)
FR2449991B3 (enExample)
FR2448871B1 (enExample)
FR2421217B3 (enExample)
FR2448915B1 (enExample)
FR2448605B1 (enExample)
FR2446410B3 (enExample)
FR2449219B1 (enExample)
AU79826S (enExample)
AU79918S (enExample)
BR5901094U (enExample)
AU79558S (enExample)
AU79950S (enExample)
AU80228S (enExample)
BG44801A1 (enExample)

Legal Events

Date Code Title Description
ST Notification of lapse