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Vehicle communication system

  • US 7,355,525 B2
  • Filed: 12/22/2005
  • Issued: 04/08/2008
  • Est. Priority Date: 12/22/2005
  • Status: Expired due to Fees
First Claim
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1. A vehicle communication system comprising:

  • a host vehicle two way communication device configured to conduct short range communications in a host vehicle broadcast area surrounding a host vehicle equipped with the vehicle communication system;

    an omni-directional antenna operatively coupled to the host vehicle two way communication device to conduct short range communications in the host vehicle broadcast area surrounding the host vehicle;

    a bi-directional antenna operatively coupled to the host vehicle two way communication device to conduct short range communications in the broadcast area surrounding the host vehicle;

    a vehicle positioning component configured to determine a host vehicle position of the host vehicle;

    a vehicle map component including road data with roads being classified by at least one of a road segment attribute; and

    a vehicle broadcast power modulating component configured to selectively vary broadcast power of the omni-directional antenna and broadcast power of the bi-directional antenna based on the road segment attribute of a road on which the host vehicle is traveling on as determined by the vehicle positioning component.

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