FR2651633B1 - ELEMENT AND DEVICES FOR ELECTROACOUSTIC TRANSDUCERS WITH PIEZOELECTRIC POLYMER BIMORPH, IN PARTICULAR FOR THE PRODUCTION OF A SPEAKER WITH LINEAR RADIATION DIAGRAM. - Google Patents

ELEMENT AND DEVICES FOR ELECTROACOUSTIC TRANSDUCERS WITH PIEZOELECTRIC POLYMER BIMORPH, IN PARTICULAR FOR THE PRODUCTION OF A SPEAKER WITH LINEAR RADIATION DIAGRAM.

Info

Publication number
FR2651633B1
FR2651633B1 FR8911494A FR8911494A FR2651633B1 FR 2651633 B1 FR2651633 B1 FR 2651633B1 FR 8911494 A FR8911494 A FR 8911494A FR 8911494 A FR8911494 A FR 8911494A FR 2651633 B1 FR2651633 B1 FR 2651633B1
Authority
FR
France
Prior art keywords
speaker
production
devices
piezoelectric polymer
electroacoustic transducers
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.)
Expired - Lifetime
Application number
FR8911494A
Other languages
French (fr)
Other versions
FR2651633A1 (en
Inventor
Micheron Francois
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.)
Technicolor USA Inc
Original Assignee
Thomson Consumer Electronics 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 Thomson Consumer Electronics Inc filed Critical Thomson Consumer Electronics Inc
Priority to FR8911494A priority Critical patent/FR2651633B1/en
Publication of FR2651633A1 publication Critical patent/FR2651633A1/en
Application granted granted Critical
Publication of FR2651633B1 publication Critical patent/FR2651633B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • H04R17/005—Piezoelectric transducers; Electrostrictive transducers using a piezoelectric polymer

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
FR8911494A 1989-09-01 1989-09-01 ELEMENT AND DEVICES FOR ELECTROACOUSTIC TRANSDUCERS WITH PIEZOELECTRIC POLYMER BIMORPH, IN PARTICULAR FOR THE PRODUCTION OF A SPEAKER WITH LINEAR RADIATION DIAGRAM. Expired - Lifetime FR2651633B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR8911494A FR2651633B1 (en) 1989-09-01 1989-09-01 ELEMENT AND DEVICES FOR ELECTROACOUSTIC TRANSDUCERS WITH PIEZOELECTRIC POLYMER BIMORPH, IN PARTICULAR FOR THE PRODUCTION OF A SPEAKER WITH LINEAR RADIATION DIAGRAM.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8911494A FR2651633B1 (en) 1989-09-01 1989-09-01 ELEMENT AND DEVICES FOR ELECTROACOUSTIC TRANSDUCERS WITH PIEZOELECTRIC POLYMER BIMORPH, IN PARTICULAR FOR THE PRODUCTION OF A SPEAKER WITH LINEAR RADIATION DIAGRAM.

Publications (2)

Publication Number Publication Date
FR2651633A1 FR2651633A1 (en) 1991-03-08
FR2651633B1 true FR2651633B1 (en) 1992-04-30

Family

ID=9385078

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8911494A Expired - Lifetime FR2651633B1 (en) 1989-09-01 1989-09-01 ELEMENT AND DEVICES FOR ELECTROACOUSTIC TRANSDUCERS WITH PIEZOELECTRIC POLYMER BIMORPH, IN PARTICULAR FOR THE PRODUCTION OF A SPEAKER WITH LINEAR RADIATION DIAGRAM.

Country Status (1)

Country Link
FR (1) FR2651633B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7039206B2 (en) * 2001-06-28 2006-05-02 Nokia Corporation Dual diaphragm speaker
AT523735B1 (en) 2020-11-10 2021-11-15 Ac2T Res Gmbh Highly effective acoustic shielding device for aerosols with regard to respiratory and skin protection

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1902849C3 (en) * 1968-01-25 1978-06-29 Pioneer Electronic Corp., Tokio Mechanical-electrical or electrical-mechanical converter
JPS4829420A (en) * 1971-08-20 1973-04-19
US3947664A (en) * 1974-01-02 1976-03-30 Texaco Inc. Highly accurate odometer
GB1565860A (en) * 1976-04-02 1980-04-23 Matsushita Electric Ind Co Ltd Microphone utilizing high-polymer piezoelectric membrane
FR2521380B2 (en) * 1980-02-22 1987-11-27 Lectret Sa ACOUSTIC TRANSDUCER
US4401857A (en) * 1981-11-19 1983-08-30 Sanyo Electric Co., Ltd. Multiple speaker

Also Published As

Publication number Publication date
FR2651633A1 (en) 1991-03-08

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Legal Events

Date Code Title Description
ST Notification of lapse