Waveguide electroacoustical transducing

Details Waveguide electroacoustical transducing Waveguide electroacoustical transducing

2004-06-11

2009-11-24

Briney, III, Walter F (Department: 2614)

Electrical audio signal processing systems and devices

Electro-acoustic audio transducer

Having acoustic wave modifying structure

C381S340000

Reexamination Certificate

active

07623670

ABSTRACT:
A waveguide system for radiating sound waves. The system includes a low loss waveguide for transmitting sound waves, having walls are tapered so that said cross-sectional area of the exit end is less than the cross-sectional area of the inlet end. In a second aspect of the invention, a waveguide for radiating sound waves, has segments of length approximately equal toA⁡(y)=Ainlet⁡[1-2⁢YB+(yB)2]where l is the effective length of said waveguide and n is a positive integer. The product of a first set of alternating segments is greater than the product of a second set of alternating segments, in one embodiment, by a factor of three. In a third aspect of the invention, the first two aspects are combined.

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