FR897298A - Récepteur électro-acoustique - Google Patents

Récepteur électro-acoustique

Info

Publication number
FR897298A
FR897298A FR897298DA FR897298A FR 897298 A FR897298 A FR 897298A FR 897298D A FR897298D A FR 897298DA FR 897298 A FR897298 A FR 897298A
Authority
FR
France
Prior art keywords
electro
acoustic receiver
acoustic
receiver
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
English (en)
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.)
Henry Radio Heinrich & Co
Original Assignee
Henry Radio Heinrich & Co
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 Henry Radio Heinrich & Co filed Critical Henry Radio Heinrich & Co
Application granted granted Critical
Publication of FR897298A publication Critical patent/FR897298A/fr
Expired legal-status Critical Current

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
    • H04R1/20—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)
FR897298D 1942-08-18 1943-08-17 Récepteur électro-acoustique Expired FR897298A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE897298X 1942-08-18

Publications (1)

Publication Number Publication Date
FR897298A true FR897298A (fr) 1945-03-16

Family

ID=6848635

Family Applications (1)

Application Number Title Priority Date Filing Date
FR897298D Expired FR897298A (fr) 1942-08-18 1943-08-17 Récepteur électro-acoustique

Country Status (1)

Country Link
FR (1) FR897298A (fr)

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