Patent ID: 11863957
Assignee: HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 13:
14. An omnidirectional loudspeaker, comprising:
a lower horn member having a generally convex, upwardly-facing outer wall;
an upper horn member spaced from the lower horn member and having a generally convex, downwardly-facing outer wall; and
a compression driver connected to one of the lower or the upper horn members along a central axis and including
a motor assembly,
a dome diaphragm operably connected to the motor assembly and having a convex surface and a concave surface, and
a phasing plug having a bottom portion and a top portion, the bottom portion having a concave bottom surface adjacent the convex surface of the diaphragm and defining a compression chamber therebetween, the phasing plug includes a plurality of conduits extending through the bottom portion for sound waves to travel, the plurality of conduits converging to form an annular exit, the top portion including a plurality of radially-expanding channels acoustically connected to the annular exit, wherein actuation of the diaphragm by the motor assembly generates sound waves within the compression chamber which travel through the annular exit and the radially-expanding channels,

wherein the lower and the upper horn members are coupled via the compression driver in spaced relationship along the central axis to define a passageway for radiating sound waves generated by the compression driver in a generally horizontal 360° radiation pattern.