DK530077A - MICROPHONE DEVICE FOR USE UNDER UNORMAL PRESSURE CONDITIONS ISAER FOR USE FOR DIVERS - Google Patents

MICROPHONE DEVICE FOR USE UNDER UNORMAL PRESSURE CONDITIONS ISAER FOR USE FOR DIVERS

Info

Publication number
DK530077A
DK530077A DK530077A DK530077A DK530077A DK 530077 A DK530077 A DK 530077A DK 530077 A DK530077 A DK 530077A DK 530077 A DK530077 A DK 530077A DK 530077 A DK530077 A DK 530077A
Authority
DK
Denmark
Prior art keywords
unormal
isaer
divers
pressure conditions
microphone device
Prior art date
Application number
DK530077A
Other languages
Danish (da)
Inventor
J G M Larsen
Original Assignee
J G M Larsen
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 J G M Larsen filed Critical J G M Larsen
Publication of DK530077A publication Critical patent/DK530077A/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/08—Mouthpieces; Microphones; Attachments therefor
    • H04R1/083—Special constructions of mouthpieces
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; 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)
  • Telephone Set Structure (AREA)
  • Measuring Fluid Pressure (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Transducers For Ultrasonic Waves (AREA)
DK530077A 1976-12-02 1977-11-30 MICROPHONE DEVICE FOR USE UNDER UNORMAL PRESSURE CONDITIONS ISAER FOR USE FOR DIVERS DK530077A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5026876 1976-12-02

Publications (1)

Publication Number Publication Date
DK530077A true DK530077A (en) 1978-06-03

Family

ID=10455301

Family Applications (1)

Application Number Title Priority Date Filing Date
DK530077A DK530077A (en) 1976-12-02 1977-11-30 MICROPHONE DEVICE FOR USE UNDER UNORMAL PRESSURE CONDITIONS ISAER FOR USE FOR DIVERS

Country Status (5)

Country Link
JP (1) JPS5394919A (en)
DE (1) DE2753848A1 (en)
DK (1) DK530077A (en)
NO (1) NO774102L (en)
SE (1) SE7713661L (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2581037B2 (en) * 1986-06-09 1997-02-12 ソニー株式会社 Waterproof earphones
JPH0510442Y2 (en) * 1989-12-14 1993-03-15
FR2738442B1 (en) * 1995-09-01 1997-11-28 Degreane Ets COMPENSATED ELECTRODYNAMIC TRANSDUCER

Also Published As

Publication number Publication date
JPS5394919A (en) 1978-08-19
NO774102L (en) 1978-06-05
DE2753848A1 (en) 1978-06-08
SE7713661L (en) 1978-06-03

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