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Road antenna controlled on the basis of receiving rate

  • US 20040041715A1
  • Filed: 09/15/2003
  • Published: 03/04/2004
  • Est. Priority Date: 06/29/1999
  • Status: Abandoned Application
First Claim
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1. A road antenna apparatus comprising:

  • a road antenna disposed above a road and establishing radio communication with an on-vehicle radio device mounted in a vehicle;

    a receiver disposed within a communication area on the road;

    a controller which controls an operation of the antenna based on a detection of the receiver.

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