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Antenna unit and card processing system

  • US 20040155796A1
  • Filed: 01/21/2004
  • Published: 08/12/2004
  • Est. Priority Date: 01/21/2003
  • Status: Active Grant
First Claim
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1. An antenna unit installed on a roadside portion of a lane where a processing regarding use of a toll road is performed for a vehicle passing through the toll road, the antenna unit comprising:

  • an antenna retaining portion retaining in a tip portion thereof an antenna coil configured to perform wireless communication with an IC card through an electromagnetic coupling; and

    a drive mechanism configured to freely move said antenna retaining portion backward and forward between a position where said antenna retaining portion protrudes above the lane and a position where said antenna retaining portion is retracted in said unit.

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