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WIRELESS IC TAG READER

  • US 20090079543A1
  • Filed: 09/08/2008
  • Published: 03/26/2009
  • Est. Priority Date: 09/25/2007
  • Status: Active Grant
First Claim
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1. A wireless IC tag reader comprising:

  • a receiving antenna with a maximum beam direction and a half-value angle;

    a transmitting antenna with a maximum beam direction and a half-value angle narrower than the half-value angle of the receiving antenna; and

    a maximum beam direction changing unit that changes the maximum beam direction of the transmitting antenna.

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