Patent ID: 7509430

Claim:
A networked video delivery system for displaying data content and video content referenced by the data content, comprising: a data content server for providing said data content over a network; a video streaming server for streaming encoded video content referenced by the data content; and a receiver for receiving the data content provided by the data content server and the encoded video content streamed from the video streaming server; and an authentication server for issuing over the network a first site certificate to the video streaming server, a second site certificate to the data content server, and a root site certificate; said first site certificate containing a public key; the first site certificate, the second site certificate, and the root site certificate being previously stored in the receiver; wherein said video streaming server issues permission information to said data content server permitting reference to the video content in response to a request from the data content server; wherein said receiver requests and checks the first site certificate from the video streaming server, the second site certificate from the data content server, and the root site certificate from the authentication server based on the previously stored first site certificate, second site certificate, and root site certificate; wherein the data content server provides the data content and the permission information received from the video streaming server to the receiver; wherein the receiver requests permission from the video streaming server to decode the encoded video content by sending the permission information provided with the data content; wherein the video streaming server judges warrantability of the permission information from the receiver and transmits a judging result to the receiver, wherein the judging of the warrantability of the permission information includes a determination whether the permission information includes predetermined data held by the video streaming server; wherein the receiver decodes the encoded video content upon receipt of the judging result and displays the data content and the video content referenced by the data content.