NL28935C - - Google Patents

Info

Publication number
NL28935C
NL28935C NL28935DA NL28935C NL 28935 C NL28935 C NL 28935C NL 28935D A NL28935D A NL 28935DA NL 28935 C NL28935 C NL 28935C
Authority
NL
Netherlands
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 NL28935C publication Critical patent/NL28935C/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
    • H04R1/34—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
    • H04R1/342—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 microphones
    • 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
    • H04R1/323—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired directional characteristic only for loudspeakers

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)
NL28935D 1928-08-03 NL28935C (h)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US297218A US1866831A (en) 1928-08-03 1928-08-03 Auditorium loud speaker

Publications (1)

Publication Number Publication Date
NL28935C true NL28935C (h)

Family

ID=23145363

Family Applications (1)

Application Number Title Priority Date Filing Date
NL28935D NL28935C (h) 1928-08-03

Country Status (2)

Country Link
US (1) US1866831A (h)
NL (1) NL28935C (h)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE934353C (de) * 1948-10-02 1955-10-20 Telefunken Gmbh Anordnung zur zentralen breitbandigen Schallversorgung eines Luftraumes
DE915460C (de) * 1948-10-03 1954-07-22 Alexander Schaaf Lautsprecherkombination mit gleichmaessigem Schallfeld
DE928351C (de) * 1949-06-05 1955-05-31 Siemens Ag Lautsprecheranordnung mit mehreren, zur Erzielung einer Richtwirkung nach Art der geraden Strahlergruppe in einer Reihe angeordneten Einzellautsprechern
DE976894C (de) * 1949-08-28 1964-08-06 Telefunken Patent Anordnung zur zentralen breitbandigen Schallversorgung eines Luftraumes
US2888090A (en) * 1949-10-14 1959-05-26 Telefunken Gmbh Loudspeaker arrangement
DE969537C (de) * 1954-10-06 1958-06-12 Grammophon Ges Mit Beschraenkt Lautsprecheranordnung mit mehreren Lautsprechern
US3022377A (en) * 1956-10-29 1962-02-20 Philco Corp Sound reproducing system
US3578103A (en) * 1969-06-04 1971-05-11 John B Lennes Speaker enclosure
US4054750A (en) * 1976-06-18 1977-10-18 Ralph Montgomery Full range rotatable speaker housing with oppositely directed speakers
US4182429A (en) * 1977-12-29 1980-01-08 Kabushiki Kaisha Senzaki Seisakusho Loud-speaker system
US4554414A (en) * 1983-04-28 1985-11-19 Harman International Industries Incorporated Multi-driver loudspeaker
US5088574A (en) * 1990-04-16 1992-02-18 Kertesz Iii Emery Ceiling speaker system
US5602366A (en) * 1995-10-12 1997-02-11 Harman International Industries Incorporated Spaceframe with array element positioning
US5996728A (en) * 1999-04-13 1999-12-07 Eastern Acoustic Works, Inc. Modular speaker cabinet including an integral rigging system
US20020048379A1 (en) * 2000-10-23 2002-04-25 Gunnar Flentje Guitar amplifier with volume control
US6830275B2 (en) * 2002-11-27 2004-12-14 Brian J. Shea Speaker mounted in recreational vehicle
US7575095B2 (en) * 2005-12-28 2009-08-18 Lg Electronics Inc. Speaker

Also Published As

Publication number Publication date
US1866831A (en) 1932-07-12

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