Patent ID: 7604094

Claim:
An acoustic scatterer, comprising: a. at least one acoustic scatterer element, wherein said at least one acoustic scatterer element comprises: i. at least one first curved surface, wherein at least a portion of said at least one first curved surface is curved about a first axis; and ii. at least one second curved surface, wherein at least a portion of said at least one second curved surface is curved about a second axis, said at least one second surface is continuous with said at least one first surface across a boundary therebetween, said at least one first curved surface is asymmetric with respect to said at least one second curved surface relative to said boundary between said at least one first curved surface and said at least one second curved surface, said acoustic scatterer element is adapted to be located on at least one reference surface, at least a portion of said at least one reference surface comprises or is proximate to a boundary of a region of an acoustic space, said first and second axes are in different directions, and at least one of said first and second axes is either oblique or orthogonal to said at least one reference surface.