Interactive video distribution systems – Satellite video distribution system
Reexamination Certificate
2007-05-29
2007-05-29
Nguyen, Simon (Department: 2685)
Interactive video distribution systems
Satellite video distribution system
C455S003020, C725S025000
Reexamination Certificate
active
10302414
ABSTRACT:
A method and apparatus for receiving conditional access information (CAI) on one or more of a plurality of tuners while the user is selecting different channels is disclosed. The method comprises the steps of receiving the CAI on a first tuner tuned to a first channel; identifying the first tuner as the tuner receiving the CAI; and commanding the second tuner to receive the CAI after receiving a command to retune the first tuner from the first channel to a second channel.
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Gagnon Gregory J.
Ha David D.
Kahn Raynold M.
Klauss Peter M.
Grunebach Georgann S.
Nguyen Simon
The DirecTV Group, Inc.
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