Directivity pattern control waveguide for a speaker, and speaker including a directivity pattern control waveguide
AssigneePerlisten Audio LLC
InventorsDan Roemer, Erik Wiederholtz
Life of this patent
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Abstract
A speaker having a continuous waveguide on one side of the speaker. The speaker includes a plurality of drivers that are superimposed to project sound into the continuous waveguide. The continuous waveguide is acoustically continuous in multiple dimensions.
Claims20
A directivity pattern control (DPC) waveguide for a speaker, the DPC waveguide defining a first axis, a second axis orthogonal to the first axis, and a third axis orthogonal to the second axis and orthogonal to the first axis, the DPC waveguide comprising:
- a waveguide body having a body surface, the waveguide body comprising:
- a first driver aperture formed by the waveguide body;
- and
- a second driver aperture formed by the waveguide body;
- a first driver coupled to the waveguide body and to propagate sound toward the first driver aperture;
- a second driver coupled to the waveguide body and substantially adjacent to the second driver aperture and to propagate sound toward the second driver aperture;
- and
- a driver cover coupled to the waveguide body and to receive sound from the first driver, the driver cover having an exterior surface, and the body surface and the exterior surface being contiguous to further an acoustically continuous waveguide surface on a side of the DPC waveguide for the second driver.
A speaker defining a first axis, a second axis orthogonal to the first axis, and a third axis orthogonal to the second axis and orthogonal to the first axis, the speaker comprising:
- a housing;
- a waveguide body coupled to the housing and comprising:
- a mouth and a throat defined by the waveguide body;
- a body surface coupling the mouth to the throat;
- and
- a first driver aperture and a second driver aperture formed in the body surface,
- wherein the mouth is in a placement plane defined by the second axis and the third axis, and the first axis is orthogonal to the placement plane,
- a first driver coupled to the waveguide body and to propagate sound toward the first driver aperture along a propagation axis parallel to the first axis;
- a second driver coupled to the waveguide body and substantially adjacent to the second driver aperture, the second driver to propagate sound toward the second driver aperture along a major axis of propagation offset from the first axis, the major axis of propagation being in or substantially near a plane defined by the first axis and the third axis;
- and
- a driver cover coupled to the waveguide body and to receive sound from the first driver, the driver cover having an exterior surface, and the body surface and the exterior surface being contiguous to further an acoustically continuous waveguide surface for the second driver.
Dependencies are inferred from the claim text.