FR751401A - Amplificateur de sons perfectionné - Google Patents

Amplificateur de sons perfectionné

Info

Publication number
FR751401A
FR751401A FR751401DA FR751401A FR 751401 A FR751401 A FR 751401A FR 751401D A FR751401D A FR 751401DA FR 751401 A FR751401 A FR 751401A
Authority
FR
France
Prior art keywords
sound amplifier
advanced sound
advanced
amplifier
sound
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)
Inventor
Helene Kanders
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 filed Critical
Application granted granted Critical
Publication of FR751401A publication Critical patent/FR751401A/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

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR751401D 1932-05-26 1932-05-26 Amplificateur de sons perfectionné Expired FR751401A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR751401T 1932-05-26

Publications (1)

Publication Number Publication Date
FR751401A true FR751401A (fr) 1933-09-04

Family

ID=9154853

Family Applications (1)

Application Number Title Priority Date Filing Date
FR751401D Expired FR751401A (fr) 1932-05-26 1932-05-26 Amplificateur de sons perfectionné

Country Status (1)

Country Link
FR (1) FR751401A (fr)

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