Patent ID: 8948441
Filing Date: 2015-02-03
Classification: H04R

Abstract:
1. A planar speaker system comprising: a bottom frame having a cavity, where the bottom frame is substantially circular in shape and has an outer diameter and an inner diameter, and where the cavity of the bottom frame is substantially circular in shape; a plurality of magnets disposed in the cavity of the bottom frame, the plurality of magnets circumferentially spaced to form a substantially circular pattern. the circular pattern coaxially aligned with a central axis of the planar speaker system, wherein the plurality of magnets are each substantially trapezoidal in shape; a top frame connected to the bottom frame, where the plurality of magnets are located between the bottom frame and the top frame where the top frame is formed to include a plurality of openings arranged in a substantially circular pattern around a central axis of the top frame; a diaphragm which is substantially circular in shape and has an outer diameter and an inner diameter, the diaphragm having a plurality of circumferentially spaced electrically conductive traces formed thereon, each conductive trace having a central region without conductive traces, the diaphragm extending across the cavity of the bottom frame; an annular ring connected to the outer diameter of the bottom frame and the outer diameter of the diaphragm, where the annular ring is located between the outer diameter of the bottom frame and the outer diameter of the diaphragm to couple the outer diameter of the bottom frame to the outer diameter of the diaphragm; and a pole piece connected to the inner diameter of the bottom frame and the inner diameter of the diaphragm.