Patent ID: 8966527
Filing Date: 2015-02-24
Classification: G06Q,H04N

Abstract:
1. A method of transmitting program material, comprising the steps of: receiving a signal from a signal distributor in the first tier of a distribution system, the signal having the program material including a first message and a first trigger delineating the first message; generating conditional access information, the conditional access information for providing conditional access to at least a portion of the program material; detecting the first trigger in the signal; inserting a second message in place of the first message according to the detected first trigger; determining that a third message is permitted to be inserted in place of the second message by a second tier of the distribution system: inserting a second trigger delineating the third message into the conditional access information; encrypting the conditional access information having the second trigger; and transmitting the program material and the encrypted conditional access information to a second tier of the distribution system.