OMNIDIRECTIONAL SOUND SOURCE

Jean-Dominique Polack (Inventor)

    Research output: Patent

    Abstract

    A sound source comprising a loudspeaker (6) and a hollow coupler (4) with an open inlet which communicates with and is closed by the loudspeaker (6) and an open outlet, said coupler (4) comprising rigid walls which cannot respond to the sound pressures produced by the loudspeaker (6). According to the invention the loudspeaker (6) comprises a cabinet (8) being narrowed down in the rearward direction. In this manner it is avoided that the cabinet (8) gives a shade from the radiation in the rearward direction, whereby a substantially omnidirectional characteristics is obtained within a relatively large frequency range.
    Original languageDanish
    Patent numberWO1996011558
    Filing date18/04/1996
    CountryInternational Bureau of the World Intellectual Property Organization (WIPO)
    Publication statusPublished - 1996

    Bibliographical note

    Licensed to Brüel & Kjær A/S in Sept. 1994

    Cite this

    Polack, J-D. (1996). OMNIDIRECTIONAL SOUND SOURCE. (Patent No. WO1996011558).
    Polack, Jean-Dominique (Inventor). / OMNIDIRECTIONAL SOUND SOURCE. Patent No.: WO1996011558. Apr 18, 1996.
    @misc{fe09fdbeace949e7bc90a172c96a84e4,
    title = "OMNIDIRECTIONAL SOUND SOURCE",
    abstract = "A sound source comprising a loudspeaker (6) and a hollow coupler (4) with an open inlet which communicates with and is closed by the loudspeaker (6) and an open outlet, said coupler (4) comprising rigid walls which cannot respond to the sound pressures produced by the loudspeaker (6). According to the invention the loudspeaker (6) comprises a cabinet (8) being narrowed down in the rearward direction. In this manner it is avoided that the cabinet (8) gives a shade from the radiation in the rearward direction, whereby a substantially omnidirectional characteristics is obtained within a relatively large frequency range.",
    author = "Jean-Dominique Polack",
    note = "Licensed to Br{\"u}el & Kj{\ae}r A/S in Sept. 1994; WO1996011558",
    year = "1996",
    language = "Dansk",
    type = "Patent",

    }

    Polack, J-D Apr. 18 1996, OMNIDIRECTIONAL SOUND SOURCE, Patent No. WO1996011558.

    OMNIDIRECTIONAL SOUND SOURCE. / Polack, Jean-Dominique (Inventor).

    Patent No.: WO1996011558. Apr 18, 1996.

    Research output: Patent

    TY - PAT

    T1 - OMNIDIRECTIONAL SOUND SOURCE

    AU - Polack, Jean-Dominique

    N1 - Licensed to Brüel & Kjær A/S in Sept. 1994

    PY - 1996

    Y1 - 1996

    N2 - A sound source comprising a loudspeaker (6) and a hollow coupler (4) with an open inlet which communicates with and is closed by the loudspeaker (6) and an open outlet, said coupler (4) comprising rigid walls which cannot respond to the sound pressures produced by the loudspeaker (6). According to the invention the loudspeaker (6) comprises a cabinet (8) being narrowed down in the rearward direction. In this manner it is avoided that the cabinet (8) gives a shade from the radiation in the rearward direction, whereby a substantially omnidirectional characteristics is obtained within a relatively large frequency range.

    AB - A sound source comprising a loudspeaker (6) and a hollow coupler (4) with an open inlet which communicates with and is closed by the loudspeaker (6) and an open outlet, said coupler (4) comprising rigid walls which cannot respond to the sound pressures produced by the loudspeaker (6). According to the invention the loudspeaker (6) comprises a cabinet (8) being narrowed down in the rearward direction. In this manner it is avoided that the cabinet (8) gives a shade from the radiation in the rearward direction, whereby a substantially omnidirectional characteristics is obtained within a relatively large frequency range.

    M3 - Patent

    M1 - WO1996011558

    Y2 - 1996/04/18

    ER -

    Polack J-D, inventor. OMNIDIRECTIONAL SOUND SOURCE. WO1996011558. 1996.