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TELECOMMUNICATIONS APPARATUS AND METHOD, STORAGE MEDIUM, AND PROGRAM

  • US 20090290506A1
  • Filed: 07/31/2009
  • Published: 11/26/2009
  • Est. Priority Date: 12/26/2002
  • Status: Active Grant
First Claim
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1. A data transmitting apparatus comprising:

  • a transmitting unit configured to transmit a sending-message including transmission information to a receiving apparatus using a User Datagram Protocol (UDP);

    a control unit configured to receive a response message to said sending-message from said data receiving apparatus, said response message including acknowledgement information based on shared data shared with said data receiving apparatus and the transmission information included in said sending-message;

    a validating unit configured to validate said acknowledgement information by using said shared data;

    a first judging unit configured to judge whether a response time of the acknowledgement message is less than a predetermined time; and

    a second judging unit configured to judge whether said receiving apparatus is near said transmitting apparatus in network by the results of said validating unit and first judging unit,and in the case said receiving apparatus is judged by the second judging unit to be near said transmitting apparatus in the network, said transmitting unit is further configured to transmit content data to said receiving apparatus.

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