CH591197A5 - - Google Patents

Info

Publication number
CH591197A5
CH591197A5 CH1059075A CH1059075A CH591197A5 CH 591197 A5 CH591197 A5 CH 591197A5 CH 1059075 A CH1059075 A CH 1059075A CH 1059075 A CH1059075 A CH 1059075A CH 591197 A5 CH591197 A5 CH 591197A5
Authority
CH
Switzerland
Application number
CH1059075A
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
Publication of CH591197A5 publication Critical patent/CH591197A5/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
    • 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)
CH1059075A 1974-08-19 1975-08-14 CH591197A5 (el)

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
CH591197A5 true CH591197A5 (el) 1977-09-15

Family

ID=25767572

Family Applications (1)

Application Number Title Priority Date Filing Date
CH1059075A CH591197A5 (el) 1974-08-19 1975-08-14

Country Status (9)

Country Link
AR (1) AR203525A1 (el)
AT (1) AT338896B (el)
BR (1) BR7505266A (el)
CH (1) CH591197A5 (el)
FI (1) FI752160A (el)
FR (1) FR2282766A1 (el)
GB (1) GB1510870A (el)
IT (1) IT1040482B (el)
SE (1) SE409538B (el)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
AR203525A1 (es) 1975-09-15
ATA550075A (de) 1977-01-15
AT338896B (de) 1977-09-26
GB1510870A (en) 1978-05-17
FI752160A (el) 1976-02-20
IT1040482B (it) 1979-12-20
BR7505266A (pt) 1976-08-03
FR2282766A1 (fr) 1976-03-19
SE409538B (sv) 1979-08-20
SE7509277L (sv) 1976-02-20

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Legal Events

Date Code Title Description
PL Patent ceased