Patent ID: 7558531

Claim:
A secure wireless communication system comprising: a first portion comprising a first inductor having a first end and a second end, said first portion having substantially continuous inductive windings from said first end to said second end; a second portion comprising a second inductor having a third end and a fourth end, said second portion having substantially continuous inductive windings from said third end to said fourth end, wherein said first portion and said second portion define a gap therebetween, and wireless communication is achieved across said gap through mutual inductance between said first inductor and said second inductor by aligning said first end with said third end, and said second end with said fourth end, wherein said first inductor is of semicircular shape, and said second inductor is one of rectilinear and arcuate shape, wherein upon alignment said first and second inductors are configured to form a dual-gap toroidal core, electromagnetic energy radiating from each of said gaps having opposing polarities, and wherein attenuation of a combined electromagnetic field resulting from said gaps is inversely proportional to a distance from said gaps raised to a third power.