FR2665045B3 - ELECTROACOUSTIC TRANSDUCER WITH PIEZOELECTRIC DISC, TELEPHONE HANDSET INCORPORATING SUCH A TRANSDUCER AND METHOD FOR MANUFACTURING SUCH A HANDSET. - Google Patents

ELECTROACOUSTIC TRANSDUCER WITH PIEZOELECTRIC DISC, TELEPHONE HANDSET INCORPORATING SUCH A TRANSDUCER AND METHOD FOR MANUFACTURING SUCH A HANDSET.

Info

Publication number
FR2665045B3
FR2665045B3 FR9009242A FR9009242A FR2665045B3 FR 2665045 B3 FR2665045 B3 FR 2665045B3 FR 9009242 A FR9009242 A FR 9009242A FR 9009242 A FR9009242 A FR 9009242A FR 2665045 B3 FR2665045 B3 FR 2665045B3
Authority
FR
France
Prior art keywords
transducer
handset
manufacturing
incorporating
piezoelectric disc
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
FR9009242A
Other languages
French (fr)
Other versions
FR2665045A1 (en
Inventor
Jean-Francis Dolidet
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.)
Nortel Networks France SAS
Original Assignee
Matra Communication SA
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 Matra Communication SA filed Critical Matra Communication SA
Priority to FR9009242A priority Critical patent/FR2665045B3/en
Priority to DE9108544U priority patent/DE9108544U1/en
Publication of FR2665045A1 publication Critical patent/FR2665045A1/en
Application granted granted Critical
Publication of FR2665045B3 publication Critical patent/FR2665045B3/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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
FR9009242A 1990-07-19 1990-07-19 ELECTROACOUSTIC TRANSDUCER WITH PIEZOELECTRIC DISC, TELEPHONE HANDSET INCORPORATING SUCH A TRANSDUCER AND METHOD FOR MANUFACTURING SUCH A HANDSET. Expired - Lifetime FR2665045B3 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR9009242A FR2665045B3 (en) 1990-07-19 1990-07-19 ELECTROACOUSTIC TRANSDUCER WITH PIEZOELECTRIC DISC, TELEPHONE HANDSET INCORPORATING SUCH A TRANSDUCER AND METHOD FOR MANUFACTURING SUCH A HANDSET.
DE9108544U DE9108544U1 (en) 1990-07-19 1991-07-11 Electro-acoustic transducer with piezo-electric disc

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR9009242A FR2665045B3 (en) 1990-07-19 1990-07-19 ELECTROACOUSTIC TRANSDUCER WITH PIEZOELECTRIC DISC, TELEPHONE HANDSET INCORPORATING SUCH A TRANSDUCER AND METHOD FOR MANUFACTURING SUCH A HANDSET.

Publications (2)

Publication Number Publication Date
FR2665045A1 FR2665045A1 (en) 1992-01-24
FR2665045B3 true FR2665045B3 (en) 1992-12-18

Family

ID=9398906

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9009242A Expired - Lifetime FR2665045B3 (en) 1990-07-19 1990-07-19 ELECTROACOUSTIC TRANSDUCER WITH PIEZOELECTRIC DISC, TELEPHONE HANDSET INCORPORATING SUCH A TRANSDUCER AND METHOD FOR MANUFACTURING SUCH A HANDSET.

Country Status (2)

Country Link
DE (1) DE9108544U1 (en)
FR (1) FR2665045B3 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69333058T2 (en) * 1992-10-27 2003-12-24 Tdk Corp Piezoelectric converter
FR2755813B1 (en) * 1996-11-14 1998-12-11 Alsthom Cge Alcatel HANDSET
GB0213732D0 (en) 2002-06-14 2002-07-24 Mitel Knowledge Corp Audio earpiece for wideband telephone handsets

Also Published As

Publication number Publication date
FR2665045A1 (en) 1992-01-24
DE9108544U1 (en) 1991-09-05

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