BE585265A - Noise reduction microphone set. - Google Patents

Noise reduction microphone set.

Info

Publication number
BE585265A
BE585265A BE585265A BE585265A BE585265A BE 585265 A BE585265 A BE 585265A BE 585265 A BE585265 A BE 585265A BE 585265 A BE585265 A BE 585265A BE 585265 A BE585265 A BE 585265A
Authority
BE
Belgium
Prior art keywords
noise reduction
microphone set
reduction microphone
noise
reduction
Prior art date
Application number
BE585265A
Other languages
French (fr)
Inventor
Harold Andrew Hart
Original Assignee
Chance Vought Aircraft Inc
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 Chance Vought Aircraft Inc filed Critical Chance Vought Aircraft Inc
Publication of BE585265A publication Critical patent/BE585265A/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
    • H04R1/32—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/406—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/405—Arrangements for obtaining a desired directivity characteristic by combining a plurality of transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
BE585265A 1958-12-22 1959-12-02 Noise reduction microphone set. BE585265A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US781988A US3004103A (en) 1958-12-22 1958-12-22 Noise-reducing microphone assembly

Publications (1)

Publication Number Publication Date
BE585265A true BE585265A (en) 1960-04-01

Family

ID=25124572

Family Applications (1)

Application Number Title Priority Date Filing Date
BE585265A BE585265A (en) 1958-12-22 1959-12-02 Noise reduction microphone set.

Country Status (4)

Country Link
US (1) US3004103A (en)
BE (1) BE585265A (en)
DE (1) DE1114539B (en)
FR (1) FR1248166A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3197574A (en) * 1962-04-16 1965-07-27 Edgar C Zane Noise suppression system
DE3843034A1 (en) * 1988-12-21 1990-06-28 Messerschmitt Boelkow Blohm MICROPHONE SYSTEM FOR DETERMINING THE DIRECTION AND POSITION OF A SOUND SOURCE
US5239578A (en) * 1990-05-15 1993-08-24 Plantronics, Inc. Noise cancelling apparatus for a telephone handset
AU645136B2 (en) * 1990-09-06 1994-01-06 British Telecommunications Public Limited Company Noise-cancelling handset
US5969838A (en) * 1995-12-05 1999-10-19 Phone Or Ltd. System for attenuation of noise
EP0777404B1 (en) * 1995-12-07 2001-09-12 Phone-Or Limited System for attenuation of noise

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2485405A (en) * 1944-04-21 1949-10-18 Stromberg Carlson Co Dipole microphone
US2393318A (en) * 1945-01-23 1946-01-22 Charles E Fraser Microphone
US2835735A (en) * 1953-12-04 1958-05-20 Electro Voice Anti-shock transducer

Also Published As

Publication number Publication date
DE1114539B (en) 1961-10-05
FR1248166A (en) 1960-12-09
US3004103A (en) 1961-10-10

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