FR763847A - Improvements to the sound emitting devices of talking machines, t. s. f., amplifiers and the like - Google Patents

Improvements to the sound emitting devices of talking machines, t. s. f., amplifiers and the like

Info

Publication number
FR763847A
FR763847A FR763847DA FR763847A FR 763847 A FR763847 A FR 763847A FR 763847D A FR763847D A FR 763847DA FR 763847 A FR763847 A FR 763847A
Authority
FR
France
Prior art keywords
amplifiers
emitting devices
sound emitting
talking machines
talking
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)
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.)
FOURIER MAGNIE REUNIS
LABERTE HUMBERT FRERES ETS
Original Assignee
FOURIER MAGNIE REUNIS
LABERTE HUMBERT FRERES ETS
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 FOURIER MAGNIE REUNIS, LABERTE HUMBERT FRERES ETS filed Critical FOURIER MAGNIE REUNIS
Application granted granted Critical
Publication of FR763847A publication Critical patent/FR763847A/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
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • H04R1/2838—Enclosures comprising vibrating or resonating arrangements of the bandpass type
    • H04R1/2842—Enclosures comprising vibrating or resonating arrangements of the bandpass type for loudspeaker transducers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR763847D 1933-02-01 1933-02-01 Improvements to the sound emitting devices of talking machines, t. s. f., amplifiers and the like Expired FR763847A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR763847T 1933-02-01

Publications (1)

Publication Number Publication Date
FR763847A true FR763847A (en) 1934-05-07

Family

ID=9181317

Family Applications (1)

Application Number Title Priority Date Filing Date
FR763847D Expired FR763847A (en) 1933-02-01 1933-02-01 Improvements to the sound emitting devices of talking machines, t. s. f., amplifiers and the like

Country Status (1)

Country Link
FR (1) FR763847A (en)

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