FR1081073A - Microphone development - Google Patents

Microphone development

Info

Publication number
FR1081073A
FR1081073A FR1081073DA FR1081073A FR 1081073 A FR1081073 A FR 1081073A FR 1081073D A FR1081073D A FR 1081073DA FR 1081073 A FR1081073 A FR 1081073A
Authority
FR
France
Prior art keywords
microphone
development
microphone development
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Maurice Bonnafous
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
APP ET D EXPL DES ETABLISSEMEN
Original Assignee
APP ET D EXPL DES ETABLISSEMEN
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 APP ET D EXPL DES ETABLISSEMEN filed Critical APP ET D EXPL DES ETABLISSEMEN
Application granted granted Critical
Publication of FR1081073A publication Critical patent/FR1081073A/en
Expired legal-status Critical Current

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
    • H04R1/34—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means
    • H04R1/38—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by using a single transducer with sound reflecting, diffracting, directing or guiding means in which sound waves act upon both sides of a diaphragm and incorporating acoustic phase-shifting means, e.g. pressure-gradient microphone

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR1081073D 1953-07-10 1953-07-10 Microphone development Expired FR1081073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1081073T 1953-07-10

Publications (1)

Publication Number Publication Date
FR1081073A true FR1081073A (en) 1954-12-15

Family

ID=9609887

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1081073D Expired FR1081073A (en) 1953-07-10 1953-07-10 Microphone development

Country Status (1)

Country Link
FR (1) FR1081073A (en)

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