FR651744A - Amplificateur de sons comprenant plusieurs unités productrices de son - Google Patents

Amplificateur de sons comprenant plusieurs unités productrices de son

Info

Publication number
FR651744A
FR651744A FR651744DA FR651744A FR 651744 A FR651744 A FR 651744A FR 651744D A FR651744D A FR 651744DA FR 651744 A FR651744 A FR 651744A
Authority
FR
France
Prior art keywords
sound
producing units
several
amplifier
sound producing
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)
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.)
Victor Talking Machine Co
Original Assignee
Victor Talking Machine 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 Victor Talking Machine Co filed Critical Victor Talking Machine Co
Application granted granted Critical
Publication of FR651744A publication Critical patent/FR651744A/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
    • H04R1/40—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers
    • H04R1/403—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only by combining a number of identical transducers loud-speakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Building Environments (AREA)
FR651744D 1927-04-06 1928-03-24 Amplificateur de sons comprenant plusieurs unités productrices de son Expired FR651744A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US531407XA 1927-04-06 1927-04-06

Publications (1)

Publication Number Publication Date
FR651744A true FR651744A (fr) 1929-02-27

Family

ID=21982190

Family Applications (1)

Application Number Title Priority Date Filing Date
FR651744D Expired FR651744A (fr) 1927-04-06 1928-03-24 Amplificateur de sons comprenant plusieurs unités productrices de son

Country Status (2)

Country Link
DE (1) DE531407C (de)
FR (1) FR651744A (de)

Also Published As

Publication number Publication date
DE531407C (de) 1931-08-10

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