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CONTENT TRANSMITTING DEVICE, CONTENT RECEIVING DEVICE AND CONTENT TRANSMITTING METHOD

  • US 20100106960A1
  • Filed: 01/05/2010
  • Published: 04/29/2010
  • Est. Priority Date: 06/10/2003
  • Status: Active Grant
First Claim
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1. A content transmitting device comprising:

  • network communication process means for transmitting and receiving data via a network;

    send-content generating means for supplying said network communication device with a content to be transmitted to a content receiving device connected via said network;

    authenticating means for receiving an authentication request from said content receiving device and authenticating said authentication request, and issuing in return an authentication request to said content receiving device;

    encrypting means for generating key information by key information generated based on information obtained by performing an authentication process by said authenticating means, and carrying out an encryption process of a content to be transmitted to said content receiving device, by using said key information;

    timer means for measuring a time from transmission of an authentication request to said content receiving device or a time from transmission of a response to said authentication request from said content receiving device until arrival of acknowledgement of receipt from said content receiving device,wherein when a measured result by said timer means is larger than a predetermined value, the content is not transmitted to said content receiving device.

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