Cinder block modular diffusor
AssigneeRPG Diffusor Systems, Inc.
InventorsPeter D'Antonio, John H. Konnert
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Abstract
The present invention relates to an acoustical diffusor device which is made up of a plurality of specially designed and shaped cinder or concrete blocks which may be assembled together through the use of mortar to provide a diffusor of desired shape and configuration. Each diffusor includes a plurality of wells, the depths of which are determined through the use of number theory sequences, such as the quadratic-residue sequence developed by Karl Frederick Gauss. These surface irregularities are unique in that they provide a flat power spectrum and constant scattered energy in the diffraction directions.
Claims3
An improved acoustical diffusor comprising:
- (a) a low frequency diffusor including a first plurality of wells, said wells being of particular depths with respect to one another which are determined by use of a quadratic-residue number theory sequence, wherein each consecutive well is given a number of 0 to n, where n equals one less than a total number of wells, and wherein a depth of any particular well is determined by squaring said number for said particular well and dividing said squared number by a chosen modulus number resulting in a remainder, the remainder after said dividing being multiplied by a chosen constant to arrive at said depth of said particular well;
- and
- (b) a plurality of high frequency diffusors corresponding in number to the number of wells of said low frequency diffusor, said high frequency diffusors each having a second plurality of wells and each being mounted in a respective one of said wells of said low frequency diffusor, said improved acoustical diffusor having characteristics of a fractal structure.
Dependencies are inferred from the claim text.