H - Electricity – 04 – K
Patent
H - Electricity
04
K
325/3
H04K 1/00 (2006.01) H04N 7/16 (2006.01) H04N 7/167 (2006.01)
Patent
CA 2010944
CONTROLLED AUTHORIZATION OF DESCRAMBLING OF SCRAMBLED PROGRAMS BROADCASTS BETWEEN DIFFERENT JURISDICTIONS ABSTRACT OF THE DISCLOSURE A control system and a corresponding method for controlling descrambling within a plurality of jurisdictions of scrambled programs broadcast from at least one of said jurisdictions. The control system includes a descrambler authorization system for each jurisdiction for providing authorization signals indicating whether descrambling of a predetermined program by descramblers located within the respective jurisdiction of the descrambler authorization system is authorized; means for distributing to a broadcast system the authorization signals pertaining to said predetermined program that are provided by the descrambler authorization systems for a plurality of said jurisdictions; a broadcast system for broadcasting a scrambled predetermined program and the distributed authorization signals pertaining to said predetermined program that are provided by the descrambler authorization systems for a plurality of said jurisdictions; and descramblers located in each jurisdiction for descrambling the scrambled predetermined program only when authorized by said broadcast authorization signals provided by the descrambler authorization system for the jurisdiction in which the descramblers are located. In order to enable a given jurisdiction to also regulate the export of scrambled programs by controlling the authorization of descramblers located in other jurisdictions for descrambling of programs broadcast from the given jurisdiction, the broadcast system includes means for also broadcasting a jurisdiction indication signal indicating the jurisdictions in which descrambling of the broadcast scrambled program is authorized; and the descramblers include means for processing the jurisdiction indication signal and for enabling descrambling of said predetermined program only when the jurisdiction indication signal indicates that descrambling of said program is authorized in the jurisdiction in which the descramblers are located.
General Instrument Corporation
Smart & Biggar
LandOfFree
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