Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Richard Janis Drysdale0
Stephen Frederick Schell0
Date of Patent
December 29, 2009
Patent Application Number
11366912
Date Filed
March 2, 2006
Patent Primary Examiner
Patent abstract
An apparatus acoustic loading of a diaphragm is disclosed. The apparatus comprises a rear face having a shape corresponding to a shape of a compression side of the diaphragm, a front face opposite to the rear face along an axis of symmetry, and a plurality of voids formed between the rear face and the front face. The plurality of voids are arranged so that their intersection with rear face forms a plurality of inlets, the plurality of inlets defining a higher compression ratio in the proximity of a voice coil compared to a compression ratio defined in at least a portion of the remaining area of the diaphragm.
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