BG20417A4 - Елктроакустичен преобразовател, по-специално микрофон за телефонни уредби - Google Patents

Елктроакустичен преобразовател, по-специално микрофон за телефонни уредби

Info

Publication number
BG20417A4
BG20417A4 BG020269A BG2026972A BG20417A4 BG 20417 A4 BG20417 A4 BG 20417A4 BG 020269 A BG020269 A BG 020269A BG 2026972 A BG2026972 A BG 2026972A BG 20417 A4 BG20417 A4 BG 20417A4
Authority
BG
Bulgaria
Prior art keywords
electroacoustic transducer
telephone devices
particular microphones
microphones
telephone
Prior art date
Application number
BG020269A
Other languages
Bulgarian (bg)
English (en)
Inventor
Erwin Martin
Franz Beil
Original Assignee
Siemens Aktiengesellschaft
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 Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Publication of BG20417A4 publication Critical patent/BG20417A4/xx

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)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Piezo-Electric Transducers For Audible Bands (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
BG020269A 1971-04-23 1972-04-20 Елктроакустичен преобразовател, по-специално микрофон за телефонни уредби BG20417A4 (bg)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2119911A DE2119911B2 (de) 1971-04-23 1971-04-23 Elektroakustischer Wandler, insbe sondere Mikrofon fur Fernsprechanlagen

Publications (1)

Publication Number Publication Date
BG20417A4 true BG20417A4 (bg) 1975-11-05

Family

ID=5805699

Family Applications (1)

Application Number Title Priority Date Filing Date
BG020269A BG20417A4 (bg) 1971-04-23 1972-04-20 Елктроакустичен преобразовател, по-специално микрофон за телефонни уредби

Country Status (10)

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

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 (de) * 1979-09-19 1981-04-09 Siemens AG, 1000 Berlin und 8000 München Piezoelektrischer wandler
WO2014061584A1 (ja) * 2012-10-15 2014-04-24 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 電気音響変換器、その製造方法、及びその電気音響変換器を用いた電子機器

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE88657C (enrdf_load_stackoverflow) *
US1757938A (en) * 1925-04-13 1930-05-06 Harvey C Hayes Acoustic instrument
FR1084139A (fr) * 1952-10-06 1955-01-17 Microphone à condensateur pour réception directionnelle
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 (de) * 1965-03-22 1966-10-13 Siemens Ag Elektroakustischer Wandler
BE759888A (fr) * 1969-12-05 1971-06-04 Siemens Ag Transducteur electro-acoustique, notamment microphone pour installations telephoniques

Also Published As

Publication number Publication date
LU65209A1 (enrdf_load_stackoverflow) 1972-07-13
FR2134023A2 (enrdf_load_stackoverflow) 1972-12-01
US3798392A (en) 1974-03-19
BE782498R (fr) 1972-10-23
DE2119911B2 (de) 1973-11-15
GB1350023A (en) 1974-04-18
SE367752B (enrdf_load_stackoverflow) 1974-06-04
DE2119911A1 (de) 1972-11-02
FR2134023B2 (enrdf_load_stackoverflow) 1978-03-03
IT1018506B (it) 1977-10-20
ZA722575B (en) 1973-01-31

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