Curved line array loudspeaker

Details Curved line array loudspeaker Curved line array loudspeaker

2005-10-05

2009-10-20

Ensey, Brian (Department: 2614)

Electrical audio signal processing systems and devices

Having non-electrical feature

And loudspeaker

C381S337000, C381S343000, C381S345000

Reexamination Certificate

active

07606383

ABSTRACT:
A loudspeaker system consisting of a plurality of direct-radiating electro-acoustical drivers arrayed along a curved line. While in one embodiment the curved line array may be a spiral array, in another embodiment it may be any curved line array (such as an arcuate array). The acoustical drivers are directly coupled to an acoustical waveguide without use of adapters or a throat section. The waveguide and the acoustical drivers may thus be oriented along the curved line so as to produce controlled vertical and horizontal angular coverage with improved phase coherence and reduced distortion. A plurality of phase plugs may be interspersed between the plurality of acoustical drivers to assist in equalizing the sound path to achieve uniform phase at the mouth of the waveguide.

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International Search Report and Written Opinion, Aug. 8, 2007.

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