CH310658A - Microphone with a screen and at least one tube acoustically coupled to the screen. - Google Patents

Microphone with a screen and at least one tube acoustically coupled to the screen.

Info

Publication number
CH310658A
CH310658A CH310658DA CH310658A CH 310658 A CH310658 A CH 310658A CH 310658D A CH310658D A CH 310658DA CH 310658 A CH310658 A CH 310658A
Authority
CH
Switzerland
Prior art keywords
screen
microphone
acoustically coupled
tube acoustically
tube
Prior art date
Application number
Other languages
German (de)
Inventor
Gloeilampenfabrieken N Philips
Original Assignee
Philips Nv
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 Philips Nv filed Critical Philips Nv
Publication of CH310658A publication Critical patent/CH310658A/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
    • H04R1/22—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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S411/00—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener
    • Y10S411/999—Expanded, threaded, driven, headed, tool-deformed, or locked-threaded fastener with retainer, e.g. tether

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
CH310658D 1952-03-20 1953-03-18 Microphone with a screen and at least one tube acoustically coupled to the screen. CH310658A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL310658X 1952-03-20

Publications (1)

Publication Number Publication Date
CH310658A true CH310658A (en) 1955-10-31

Family

ID=19783626

Family Applications (1)

Application Number Title Priority Date Filing Date
CH310658D CH310658A (en) 1952-03-20 1953-03-18 Microphone with a screen and at least one tube acoustically coupled to the screen.

Country Status (6)

Country Link
US (1) US2720934A (en)
BE (1) BE518558A (en)
CH (1) CH310658A (en)
DE (1) DE916955C (en)
FR (1) FR1073068A (en)
GB (1) GB724566A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1205149B (en) * 1959-09-07 1965-11-18 Sony Corp Tube microphone
US3517390A (en) * 1968-02-29 1970-06-23 Layne Whitehead High power acoustic radiator
US3895688A (en) * 1972-07-31 1975-07-22 Hyroacoustics Inc Acoustic transmitter

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR541251A (en) * 1920-04-03 1922-07-25 Signal Gmbh Device for the suppression of disturbances in acoustic reception
US2363686A (en) * 1943-10-29 1944-11-28 Harry F. Olson Acoustic Stethoscope

Also Published As

Publication number Publication date
GB724566A (en) 1955-02-23
FR1073068A (en) 1954-09-20
DE916955C (en) 1954-08-23
US2720934A (en) 1955-10-18
BE518558A (en)

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