×

CLIENT-SIDE PROTECTION OF BROADCAST OR MULTICAST CONTENT FOR NON-REAL-TIME PLAYBACK

  • US 20110170688A1
  • Filed: 03/21/2011
  • Published: 07/14/2011
  • Est. Priority Date: 12/15/2006
  • Status: Abandoned Application
First Claim
Patent Images

1. A method for providing client-side protection of multicast multimedia content for non-real-time playback comprising:

  • receiving a record request for content;

    receiving the content over a network interface from a multicast network;

    decrypting the content;

    determining if non real-time playback of the content is restricted;

    sending a request to a licensing server if non real-time playback is restricted;

    receiving a record policy for the content identifying non real-time playback restrictions in response to the request;

    receiving a unique encryption key for the content;

    re-encrypting the content into a file using the encryption key, the file including a content ID, a set-top-box function ID, and a reference to a policy server; and

    sending the file to a remote system.

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