| US 7,580,523 B2 | ||
| Distribution of video content using client to host pairing of integrated receivers/decoders | ||
| Raynold M. Kahn, Los Angeles, Calif. (US); Gregory J. Gagnon, Torrance, Calif. (US); Christopher P. Curren, Brentwood, Calif. (US); and Thomas H. James, Pacific Palisades, Calif. (US) | ||
| Assigned to The DIRECTV Group, Inc., El Segundo, Calif. (US) | ||
| Filed on Jan. 16, 2004, as Appl. No. 10/758,865. | ||
| Prior Publication US 2008/0019529 A1, Jan. 24, 2008 | ||
| Int. Cl. H04N 7/167 (2006.01); H04L 9/00 (2006.01) | ||
| U.S. Cl. 380—240 [380/239; 380/242; 380/281; 380/284; 380/212; 713/176; 726/27; 726/20] | 22 Claims |
| 1. A method of operatively pairing a host receiver and a client receiver in a broadcast system, comprising:
(a) receiving encrypted program materials, generated by a service provider, at one or more subscriber receiving stations,
at least one of the subscriber receiving stations being comprised of a plurality of networked receivers, wherein the networked
receivers include at least one host receiver and at least one client receiver;
(b) decrypting the received program materials at the host receiver;
(c) re-encrypting the decrypted program materials at the host receiver using a copy protection key;
(d) encrypting the copy protection key at the host receiver using a host-client pairing key generated by the service provider
and shared between the host receiver and client receiver in order to share the program materials between the host receiver
and client receiver, wherein the service provider establishes the host-client pairing key for a particular combination of
the host and client receivers;
(e) transferring the re-encrypted program materials and the encrypted copy protection key from the host receiver to the client
receiver;
(f) decrypting the transferred copy protection key at the client receiver using the host-client pairing key; and
(g) decrypting the transferred program materials at the client receiver using the decrypted copy protection key.
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