BE623747A - - Google Patents

Info

Publication number
BE623747A
BE623747A BE623747DA BE623747A BE 623747 A BE623747 A BE 623747A BE 623747D A BE623747D A BE 623747DA BE 623747 A BE623747 A BE 623747A
Authority
BE
Belgium
Application number
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.)
Publication of BE623747A publication Critical patent/BE623747A/xx

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
    • H04R1/40—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)
  • Details Of Audible-Bandwidth Transducers (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
BE623747D 1962-10-17 BE623747A (ko)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3720161A GB1030869A (en) 1962-10-17 1962-10-17 Improvements relating to loud-speakers

Publications (1)

Publication Number Publication Date
BE623747A true BE623747A (ko)

Family

ID=10394608

Family Applications (1)

Application Number Title Priority Date Filing Date
BE623747D BE623747A (ko) 1962-10-17

Country Status (2)

Country Link
BE (1) BE623747A (ko)
GB (1) GB1030869A (ko)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4042778A (en) * 1976-04-01 1977-08-16 Clinton Henry H Collapsible speaker assembly
JP2945983B2 (ja) * 1987-03-25 1999-09-06 久次 中村 スピーカ装置

Also Published As

Publication number Publication date
GB1030869A (en) 1966-05-25

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