Improved signal security in a satellite signal distribution...

Details Improved signal security in a satellite signal distribution... Improved signal security in a satellite signal distribution...

H - Electricity

04

N

H04N 21/637 (2011.01) H04N 21/40 (2011.01) H04N 7/20 (2006.01)

Patent

CA 2688953

Certain embodiments provide a set top box, comprising: a processing entity configured to obtain data for a channel stacking switch, to obtain a security data element and to formulate a message for the channel stacking switch by combining the security data element with the data; a communications interface configured to send the message to channel stacking switch. Other embodiments provide a channel stacking switch, comprising: a communication interface configured to receive a message from a set top box; a processing entity configured to determine whether or not the message is legitimate and to take an action that depends on whether or not the message is legitimate. Still further embodiments provide a satellite signal receiving system comprising a channel stacking switch and at least one set top box in secure communication with the channel stacking switch.

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