IT216578Z2 - Capsula piezoceramica per apparecchi telefonici. - Google Patents

Capsula piezoceramica per apparecchi telefonici.

Info

Publication number
IT216578Z2
IT216578Z2 IT2107289U IT2107289U IT216578Z2 IT 216578 Z2 IT216578 Z2 IT 216578Z2 IT 2107289 U IT2107289 U IT 2107289U IT 2107289 U IT2107289 U IT 2107289U IT 216578 Z2 IT216578 Z2 IT 216578Z2
Authority
IT
Italy
Prior art keywords
telephone devices
piezoceramic
capsule
piezoceramic capsule
telephone
Prior art date
Application number
IT2107289U
Other languages
English (en)
Other versions
IT8921072V0 (it
Original Assignee
Face Standard Ind
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 Face Standard Ind filed Critical Face Standard Ind
Priority to IT2107289U priority Critical patent/IT216578Z2/it
Publication of IT8921072V0 publication Critical patent/IT8921072V0/it
Priority to PCT/EP1990/000784 priority patent/WO1990014737A1/en
Priority to EG28991A priority patent/EG19327A/xx
Application granted granted Critical
Publication of IT216578Z2 publication Critical patent/IT216578Z2/it

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/03—Constructional features of telephone transmitters or receivers, e.g. telephone hand-sets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/06—Arranging circuit leads; Relieving strain on circuit leads
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Telephone Set Structure (AREA)
IT2107289U 1989-05-15 1989-05-15 Capsula piezoceramica per apparecchi telefonici. IT216578Z2 (it)

Priority Applications (3)

Application Number Priority Date Filing Date Title
IT2107289U IT216578Z2 (it) 1989-05-15 1989-05-15 Capsula piezoceramica per apparecchi telefonici.
PCT/EP1990/000784 WO1990014737A1 (en) 1989-05-15 1990-05-15 Piezoceramic transducer for telephone instruments
EG28991A EG19327A (en) 1989-05-15 1991-05-13 Piezoelectric transducer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2107289U IT216578Z2 (it) 1989-05-15 1989-05-15 Capsula piezoceramica per apparecchi telefonici.

Publications (2)

Publication Number Publication Date
IT8921072V0 IT8921072V0 (it) 1989-05-15
IT216578Z2 true IT216578Z2 (it) 1991-09-16

Family

ID=11176315

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2107289U IT216578Z2 (it) 1989-05-15 1989-05-15 Capsula piezoceramica per apparecchi telefonici.

Country Status (2)

Country Link
IT (1) IT216578Z2 (it)
WO (1) WO1990014737A1 (it)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK0456968T3 (da) * 1990-05-14 1995-03-13 Alcatel Dial Face Spa Piezoelektrisk transducer
EP0620696A1 (de) * 1993-04-09 1994-10-19 Molex Incorporated Piezo-elektrischer akustischer Wandler
JP2971018B2 (ja) * 1995-11-17 1999-11-02 スター精密株式会社 電気音響変換器
CN113219649B (zh) * 2021-04-30 2022-11-22 哈尔滨芯明天科技有限公司 一种航天应用的高可靠压电偏摆镜

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE623017A (it) * 1961-09-29
JPS60199298A (ja) * 1984-03-23 1985-10-08 Murata Mfg Co Ltd 圧電音響変換装置
DE3504011A1 (de) * 1985-02-06 1986-08-07 Siemens AG, 1000 Berlin und 8000 München Kontaktierung schwingender bauelemente mittels leitgummi
DE3609461A1 (de) * 1986-03-20 1987-09-24 Siemens Ag Elektroakustischer wandler
DE3630598A1 (de) * 1986-09-09 1988-03-10 Hagenuk Telecom Gmbh Elektroakustischer wandler
JPH06188699A (ja) * 1992-12-22 1994-07-08 Toshiba Corp 遅延回路

Also Published As

Publication number Publication date
IT8921072V0 (it) 1989-05-15
WO1990014737A1 (en) 1990-11-29

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