Waveguide for shaping sound waves
First Claim
Patent Images
1. An acoustic waveguide for shaping waves comprising:
- walls defining a chamber having an input end and an output end with the chamber defined therebetween;
an opening at the input end for receiving sound waves from an acoustic transducer;
an opening at the output end for outputting sound waves;
the chamber opening in a first direction from the input end to the output end, the first direction being transverse to a path from the input end to the output end, the chamber defining a first inner face and a second inner face opposing and facing the first inner face;
a plurality of projections provided on the first inner face and projecting outwardly therefrom; and
at least two vanes disposed on the first inner face of the chamber, the vanes extending from proximate the opening at the input end and generally toward the output end.
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Accused Products
Abstract
An acoustic waveguide includes a plurality of projections to redirect sound waves to obtain a desired wave front, such as a flat plane wave front or an asymmetric curved wave front. The waveguide includes two waveguide members that are mirror images of each other. The waveguide members have corresponding vanes and projections. The waveguide includes an essentially circular input opening for alignment with a compression driver and provides a substantially rectangular output opening from the waveguide.
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Citations
17 Claims
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1. An acoustic waveguide for shaping waves comprising:
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walls defining a chamber having an input end and an output end with the chamber defined therebetween; an opening at the input end for receiving sound waves from an acoustic transducer; an opening at the output end for outputting sound waves; the chamber opening in a first direction from the input end to the output end, the first direction being transverse to a path from the input end to the output end, the chamber defining a first inner face and a second inner face opposing and facing the first inner face; a plurality of projections provided on the first inner face and projecting outwardly therefrom; and at least two vanes disposed on the first inner face of the chamber, the vanes extending from proximate the opening at the input end and generally toward the output end. - View Dependent Claims (2, 3, 4, 7, 9, 10, 11, 12, 13)
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5. An acoustic waveguide for shaping waves comprising:
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walls defining a chamber having an input end and an output end with the chamber defined therebetween; an opening at the input end for receiving sound waves from an acoustic transducer; an opening at the output end for outputting sound waves; the chamber opening in a first direction from the input end to the output end, the first direction being transverse to a path from the input end to the output end, the chamber defining a first inner face and a second inner face opposing and facing the first inner face; a plurality of projections provided on the first inner face and projecting outwardly therefrom; at least two vanes disposed on the first inner face of the chamber, the vanes extending from proximate the opening at the input end and generally toward the output end; a plurality of projections provided on the second inner face and projecting outwardly therefrom, the projections on the second inner face being in alignment with the projections on the first inner face; and at least two vanes disposed on the second inner face of the chamber, the vanes on the second inner face of the chamber being in alignment with the vanes on the first face of the chamber, wherein the waveguide comprises two waveguide members that are mirror images of each other, wherein the first inner face is associated with a first one of the waveguide members and the second inner face is associated with a second one of the waveguide members. - View Dependent Claims (6, 8)
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14. An acoustic waveguide for shaping waves comprising:
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walls defining a chamber having an input end and an output end with a chamber defined therebetween; an opening at the input end for receiving sound waves from an acoustic transducer; a substantially rectangular opening at the output end for outputting sound waves; the chamber opening in a first direction from the input end to the output end, the first direction being transverse to a path from the input end to the output end, the chamber defining a first inner face and a second inner face opposing and facing the first inner face, and the opening chamber in the first direction defining the height of the rectangular opening at the output end; a plurality of projections provided on the first inner face and projecting outwardly therefrom; and at least one vane disposed on the first inner face of the chamber, the vane extending from proximate the opening at the input end and generally toward the output end. - View Dependent Claims (15, 16, 17)
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Specification