×

Information distribution system, information distribution device, information receiving device, information distribution method, information distribution program, recording medium recording the information distribution program, information receiving method, information receiving program, and recording medium recording the information receiving program

  • US 7,428,512 B2
  • Filed: 11/27/2001
  • Issued: 09/23/2008
  • Est. Priority Date: 05/31/2000
  • Status: Expired due to Fees
First Claim
Patent Images

1. An information distribution system which distributes contents data via a communications network, the contents data being provided by an information source provider, comprising:

  • a distribution device for distributing distribution data containing the contents data; and

    a receiving device for receiving and storing the distribution data,wherein;

    the distribution data further contains use limitation information of the distribution data, andthe receiving device rewrites the use limitation information of the stored distribution data upon receipt of permission by the distribution device, wherein;

    the receiving device receives from the distribution device a reuse information key indicative of details of changes made in the use limitation information and rewrites use limitation information of the distribution data stored in the receiving device based on the reuse information key.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×