FR786027A - Improvements to powerful speaker installations - Google Patents

Improvements to powerful speaker installations

Info

Publication number
FR786027A
FR786027A FR786027DA FR786027A FR 786027 A FR786027 A FR 786027A FR 786027D A FR786027D A FR 786027DA FR 786027 A FR786027 A FR 786027A
Authority
FR
France
Prior art keywords
powerful speaker
speaker installations
installations
powerful
speaker
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.)
Telefunken AG
Original Assignee
Telefunken AG
Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH
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 Telefunken AG, Telefunken Gesellschaft fuer Drahtlose Telegraphie mbH filed Critical Telefunken AG
Application granted granted Critical
Publication of FR786027A publication Critical patent/FR786027A/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
    • H04R1/345—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 for loudspeakers

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Circuit For Audible Band Transducer (AREA)
FR786027D 1934-03-09 1935-02-22 Improvements to powerful speaker installations Expired FR786027A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE439009X 1934-03-09

Publications (1)

Publication Number Publication Date
FR786027A true FR786027A (en) 1935-08-24

Family

ID=6507242

Family Applications (1)

Application Number Title Priority Date Filing Date
FR786027D Expired FR786027A (en) 1934-03-09 1935-02-22 Improvements to powerful speaker installations

Country Status (2)

Country Link
FR (1) FR786027A (en)
GB (1) GB439009A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3463845A (en) * 1967-04-06 1969-08-26 Union Camp Corp Injection molding apparatus for making composite paper-plastic lids and method
US4063387A (en) * 1976-12-27 1977-12-20 Mitchell Thomas R Hanging planter pot speaker enclosure
DE3204702A1 (en) * 1982-02-11 1983-08-18 Herwig 4905 Spenge Rabeneck Exponential horn for loudspeaker systems
DE102007019450A1 (en) * 2007-04-10 2008-10-16 Michael Schwahn Omnidirectional radiating and receiving horn has two volume bodies mounted one above other at distance from each other, where lower volume body has tubular horn neck

Also Published As

Publication number Publication date
GB439009A (en) 1935-11-27

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