Patent ID: 7650003

Claim:
A flat panel speaker comprising: a conductor configured to convey current representative of an audio signal from an audio source; at least one signal oscillation radiator signally coupled to said conductor such that said at least one radiator is responsive to said current, said at least one radiator comprises a first radiator configured to oscillate at a first frequency range in response to said current, said first radiator comprising: a magnet defining a magnetic field axis thereby; a coil former defining a magnet-engaging portion; and a coil winding signally coupled to said conductor and wrapped around said coil former in a manner such that a plurality of sub-windings are defined thereby, said sub-windings spaced relative to one another to define a clamshell shape around said coil former such that a first of said sub-windings defines an upper clamshell and a second of said sub-windings defines a lower clamshell, both said upper and lower clamshells angularly disposed relative to said magnetic axis such that a magnetic field induced by current flowing through said sub-windings induces an oscillatory force between said magnet and said coil former; a panel acoustically coupled to said at least one radiator such that oscillatory motion induced into said at least one radiator in response to receipt of said current is imparted to said panel to cause vibration thereof; a frame to support said panel; and a surround disposed intermediate said frame and said panel and configured to at least partially decouple vibrations therebetween.