Patent ID: 7333786

Claim:
A relaying apparatus for relaying wireless communication of an electro-magnetic coupling system, mediated by a carrier wave of a preset frequency, between an information read/write device and a non-contact information medium, said relaying apparatus comprising a first antenna coil electro-magnetically coupled to an antenna coil of said information read/write device; a second antenna coil, connected in series with said first antenna coil and electro-magnetically coupled with an antenna coil of said non-contact information medium; the first antenna coil being positioned within the second antenna coil; and a tuning capacitor connected to said first antenna coil and said second antenna coil; said first antenna coil, second antenna coil and the tuning capacitor forming a resonance circuit resonated at the resonance frequency which is the same as the resonance frequency of a resonance circuit of said read/write device and the resonance frequency of a resonance circuit of said non-contact information medium.