ATE116788T1 - Elektroakustischer piezoelektrischer wandler. - Google Patents

Elektroakustischer piezoelektrischer wandler.

Info

Publication number
ATE116788T1
ATE116788T1 AT91114551T AT91114551T ATE116788T1 AT E116788 T1 ATE116788 T1 AT E116788T1 AT 91114551 T AT91114551 T AT 91114551T AT 91114551 T AT91114551 T AT 91114551T AT E116788 T1 ATE116788 T1 AT E116788T1
Authority
AT
Austria
Prior art keywords
diaphragm
piezoelectric transducer
housing
electroacoustic
electroacoustic piezoelectric
Prior art date
Application number
AT91114551T
Other languages
English (en)
Inventor
Helio T Bittencourt
Original Assignee
Leson S A
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 Leson S A filed Critical Leson S A
Application granted granted Critical
Publication of ATE116788T1 publication Critical patent/ATE116788T1/de

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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar 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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Transducers For Ultrasonic Waves (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
AT91114551T 1990-08-30 1991-08-29 Elektroakustischer piezoelektrischer wandler. ATE116788T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BR909004306A BR9004306A (pt) 1990-08-30 1990-08-30 Alto falante piezo-eletrico para altas frequencias aperfeicoado

Publications (1)

Publication Number Publication Date
ATE116788T1 true ATE116788T1 (de) 1995-01-15

Family

ID=4050213

Family Applications (1)

Application Number Title Priority Date Filing Date
AT91114551T ATE116788T1 (de) 1990-08-30 1991-08-29 Elektroakustischer piezoelektrischer wandler.

Country Status (6)

Country Link
US (1) US5245669A (de)
EP (1) EP0475208B1 (de)
JP (1) JPH0556497A (de)
AT (1) ATE116788T1 (de)
BR (1) BR9004306A (de)
DE (1) DE69106460D1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276513B (en) * 1993-03-25 1996-11-13 Charles William Turner Transducer for airborne ultrasound
US5444324A (en) * 1994-07-25 1995-08-22 Western Atlas International, Inc. Mechanically amplified piezoelectric acoustic transducer
US6658126B1 (en) * 1999-04-07 2003-12-02 Ericsson Inc. Hearing aid compatible piezoelectric speaker
JP2001119788A (ja) 1999-10-14 2001-04-27 Sony Corp スピーカ装置
GB0811015D0 (en) * 2008-06-17 2008-07-23 Deben Acoustics Improved acoustic device
US9887725B1 (en) 2016-10-06 2018-02-06 Vibes Audio Llc Water resistant wireless device speaker case and conference call module
US10863013B2 (en) 2016-10-06 2020-12-08 Vibes Audio Llc Portable device case for removably attaching accessories
USD835087S1 (en) 2016-11-04 2018-12-04 Vibes Audio Llc Phone case with attachable wireless communication module
USD869453S1 (en) 2016-11-04 2019-12-10 Vibes Audio Llc Portable device case with attachment accessory

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2566850A (en) * 1946-10-19 1951-09-04 Bell Telephone Labor Inc Electroacoustic transducer
GB2018548B (en) * 1978-04-07 1982-06-16 Matsushita Electric Ind Co Ltd Piezoelectric speaker
US4319098A (en) * 1980-04-30 1982-03-09 Motorola, Inc. Loudspeaker having a unitary mechanical-acoustic diaphragm termination
US4425482A (en) * 1982-03-08 1984-01-10 Western Electric Company Ring armature electroacoustic transducer
US4475014A (en) * 1982-09-13 1984-10-02 Harman-Motive Inc. Acoustical transducer
FR2628282B1 (fr) * 1988-03-01 1990-08-24 Horlogerie Photograph Fse Capsule electroacoustique a membrane piezoelectrique
US4996713A (en) * 1989-09-25 1991-02-26 S. Eletro-Acustica S.A. Electroacoustic piezoelectric transducer having a broad operating range

Also Published As

Publication number Publication date
BR9004306A (pt) 1992-03-24
JPH0556497A (ja) 1993-03-05
EP0475208A2 (de) 1992-03-18
EP0475208B1 (de) 1995-01-04
EP0475208A3 (en) 1992-10-14
US5245669A (en) 1993-09-14
DE69106460D1 (de) 1995-02-16

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Legal Events

Date Code Title Description
RER Ceased as to paragraph 5 lit. 3 law introducing patent treaties