IT1040482B - Capsula microfonica a carbone protetta dall umidita - Google Patents

Capsula microfonica a carbone protetta dall umidita

Info

Publication number
IT1040482B
IT1040482B IT26110/75A IT2611075A IT1040482B IT 1040482 B IT1040482 B IT 1040482B IT 26110/75 A IT26110/75 A IT 26110/75A IT 2611075 A IT2611075 A IT 2611075A IT 1040482 B IT1040482 B IT 1040482B
Authority
IT
Italy
Prior art keywords
charcoal
humidity
microphone capsule
capsule protected
protected
Prior art date
Application number
IT26110/75A
Other languages
English (en)
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
Priority claimed from DE19742439688 external-priority patent/DE2439688C2/de
Priority claimed from DE19742439720 external-priority patent/DE2439720C2/de
Application filed by Siemens Ag filed Critical Siemens Ag
Application granted granted Critical
Publication of IT1040482B publication Critical patent/IT1040482B/it

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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/021—Microphones with granular resistance material
    • 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
    • H04R1/44—Special adaptations for subaqueous use, e.g. for hydrophone

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
IT26110/75A 1974-08-19 1975-08-05 Capsula microfonica a carbone protetta dall umidita IT1040482B (it)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19742439688 DE2439688C2 (de) 1974-08-19 1974-08-19 Feuchtigkeitsgeschuetze kohlemikrofonkapsel
DE19742439720 DE2439720C2 (de) 1974-08-19 1974-08-19 Feuchtigkeitsgeschuetzte kohlemikrofonkapsel

Publications (1)

Publication Number Publication Date
IT1040482B true IT1040482B (it) 1979-12-20

Family

ID=25767572

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26110/75A IT1040482B (it) 1974-08-19 1975-08-05 Capsula microfonica a carbone protetta dall umidita

Country Status (9)

Country Link
AR (1) AR203525A1 (enrdf_load_stackoverflow)
AT (1) AT338896B (enrdf_load_stackoverflow)
BR (1) BR7505266A (enrdf_load_stackoverflow)
CH (1) CH591197A5 (enrdf_load_stackoverflow)
FI (1) FI752160A7 (enrdf_load_stackoverflow)
FR (1) FR2282766A1 (enrdf_load_stackoverflow)
GB (1) GB1510870A (enrdf_load_stackoverflow)
IT (1) IT1040482B (enrdf_load_stackoverflow)
SE (1) SE409538B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108574917A (zh) * 2018-05-28 2018-09-25 歌尔股份有限公司 电子设备

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108574917A (zh) * 2018-05-28 2018-09-25 歌尔股份有限公司 电子设备
CN108574917B (zh) * 2018-05-28 2021-03-02 歌尔股份有限公司 电子设备

Also Published As

Publication number Publication date
FI752160A7 (enrdf_load_stackoverflow) 1976-02-20
FR2282766A1 (fr) 1976-03-19
AT338896B (de) 1977-09-26
BR7505266A (pt) 1976-08-03
AR203525A1 (es) 1975-09-15
GB1510870A (en) 1978-05-17
SE7509277L (sv) 1976-02-20
ATA550075A (de) 1977-01-15
SE409538B (sv) 1979-08-20
CH591197A5 (enrdf_load_stackoverflow) 1977-09-15

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