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Data communication apparatus, data communication method, and data communication packet

  • US 8,903,423 B2
  • Filed: 02/24/2006
  • Issued: 12/02/2014
  • Est. Priority Date: 03/31/2005
  • Status: Expired due to Fees
First Claim
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1. A first data communication apparatus comprising:

  • obtaining apparatus for receiving, by the first apparatus, information in a broadcast signal identifying a motion status of a distant second data communication apparatus;

    motion determination apparatus for determining, by the first apparatus, the motion of the distant second apparatus based on the information identifying the motion status received by the obtaining apparatus, wherein the motion of the second apparatus determined by the motion determination apparatus is representative of a static state, a moving state, being manually operated, walking, jogging, or movement of a vehicle;

    communication determination apparatus for determining, by the first apparatus, whether or not data communication is to be established with the distant second apparatus based on a motion determination of at least the distant second apparatus that is output by the motion determination apparatus; and

    communication apparatus for initiating the data communication with the distant second apparatus responsive to the communication determination apparatus determining that the data communication is to be established with the distant second apparatus.

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