×

Noncontact communication apparatus and noncontact communication method

  • US 20100328045A1
  • Filed: 06/03/2010
  • Published: 12/30/2010
  • Est. Priority Date: 06/29/2009
  • Status: Active Grant
First Claim
Patent Images

1. A noncontact communication apparatus comprising:

  • an antenna resonance circuit configured to have a coil for communicating with an opposite party through electromagnetic coupling;

    changing means for changing a Q-factor of said antenna resonance circuit; and

    control means for controlling said antenna resonance circuit to transmit and receive data to and from said opposite party at one of a plurality of communication speeds prepared beforehand, said control means further controlling said changing means to reduce said Q-factor the higher the communication speed in use.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×