IT1018506B - ELECTROACOUSTIC TRANSDUCER ESPECIALLY MICROPHONE FOR TELEPHONE SYSTEMS - Google Patents

ELECTROACOUSTIC TRANSDUCER ESPECIALLY MICROPHONE FOR TELEPHONE SYSTEMS

Info

Publication number
IT1018506B
IT1018506B IT7322/72A IT732272A IT1018506B IT 1018506 B IT1018506 B IT 1018506B IT 7322/72 A IT7322/72 A IT 7322/72A IT 732272 A IT732272 A IT 732272A IT 1018506 B IT1018506 B IT 1018506B
Authority
IT
Italy
Prior art keywords
electroacoustic transducer
telephone systems
transducer especially
especially microphone
microphone
Prior art date
Application number
IT7322/72A
Other languages
Italian (it)
Original Assignee
Siemens Ag
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 Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of IT1018506B publication Critical patent/IT1018506B/en

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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/222—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only  for microphones
    • 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
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Multimedia (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
IT7322/72A 1971-04-23 1972-04-21 ELECTROACOUSTIC TRANSDUCER ESPECIALLY MICROPHONE FOR TELEPHONE SYSTEMS IT1018506B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2119911A DE2119911B2 (en) 1971-04-23 1971-04-23 Electroacoustic converter, in particular microphone for telephone systems

Publications (1)

Publication Number Publication Date
IT1018506B true IT1018506B (en) 1977-10-20

Family

ID=5805699

Family Applications (1)

Application Number Title Priority Date Filing Date
IT7322/72A IT1018506B (en) 1971-04-23 1972-04-21 ELECTROACOUSTIC TRANSDUCER ESPECIALLY MICROPHONE FOR TELEPHONE SYSTEMS

Country Status (10)

Country Link
US (1) US3798392A (en)
BE (1) BE782498R (en)
BG (1) BG20417A4 (en)
DE (1) DE2119911B2 (en)
FR (1) FR2134023B2 (en)
GB (1) GB1350023A (en)
IT (1) IT1018506B (en)
LU (1) LU65209A1 (en)
SE (1) SE367752B (en)
ZA (1) ZA722575B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1032479A (en) * 1974-09-16 1978-06-06 Rudolf Gorike Headphone
US4337640A (en) 1979-04-10 1982-07-06 Nissan Motor Co., Ltd. Knocking sensor
DE2937922A1 (en) * 1979-09-19 1981-04-09 Siemens AG, 1000 Berlin und 8000 München PIEZOELECTRIC CONVERTER
US9338556B2 (en) * 2012-10-15 2016-05-10 Nec Corporation Electroacoustic transducer, manufacturing method thereof, and electronic device utilizing same

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE88657C (en) *
US1757938A (en) * 1925-04-13 1930-05-06 Harvey C Hayes Acoustic instrument
FR1084139A (en) * 1952-10-06 1955-01-17 Condenser microphone for directional reception
US2921993A (en) * 1955-10-04 1960-01-19 Electro Voice Pressure gradient noise canceling microphone
US3206558A (en) * 1961-09-22 1965-09-14 Erie Technological Prod Inc Microphone
DE1226647B (en) * 1965-03-22 1966-10-13 Siemens Ag Electroacoustic converter
BE759888A (en) * 1969-12-05 1971-06-04 Siemens Ag ELECTRO-ACOUSTIC TRANSDUCER, ESPECIALLY MICROPHONE FOR TELEPHONE SYSTEMS

Also Published As

Publication number Publication date
BG20417A4 (en) 1975-11-05
SE367752B (en) 1974-06-04
FR2134023B2 (en) 1978-03-03
DE2119911B2 (en) 1973-11-15
ZA722575B (en) 1973-01-31
DE2119911A1 (en) 1972-11-02
US3798392A (en) 1974-03-19
LU65209A1 (en) 1972-07-13
FR2134023A2 (en) 1972-12-01
GB1350023A (en) 1974-04-18
BE782498R (en) 1972-10-23

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