Patent ID: 8041048
Filing Date: 2011-10-18
Classification: H04R

Abstract:
1. An electromagnetically-countered speaker system for generating audible sounds based on at least one dynamic signal supplied to at least two electromagnets while minimizing irradiation of harmful electromagnetic waves onto an user of said system comprising: at least one drive member which is configured to include at least one first electromagnet and a mobile cone, wherein said mobile cone is configured to be fixedly coupled to said first electromagnet, and wherein said first electromagnet is configured to receive a first signal of a first amplitude therein in a first preset direction and to generate first dynamic magnetic fields therearound; and at least one counter member including at least one second electromagnet which is configured to be disposed in a preset relation to said first electromagnet and to receive a second signal having a second amplitude therein in a second preset direction and to generate second dynamic magnetic fields therearound, wherein said first and second magnetic fields are configured to generate one of repulsive and attractive forces therebetween primarily based upon said relation, amplitudes, and directions, wherein magnitudes of said forces are configured to be decided based upon a preset proportion to amplitudes of at least one of said first and second signals, wherein said drive member is configured to generate vibration of said cone primarily based on said forces, to convert said vibration of said cone into said sounds, and to transmit said sounds onto said user while irradiating said harmful waves, and wherein said counter member is configured to irradiate counter electromagnetic waves capable of canceling at least a portion of said harmful waves based upon said relation, amplitudes, and directions, thereby minimizing said irradiation.