Patent ID: 8352982
Filing Date: 2013-01-08
Classification: H04H,H04L,H04N,H04W

Abstract:
1. A method comprising: deriving a substitution table that specifies one or more service substitutions to be performed for content and that specifies particular geographic locations to perform at least one said service substitution, for the at least one said service substitution, the substitution table specifies a service from a substitution collection that is to be displayed in one said particular geographic location in place of a nominal service, the substitution collection is a set of services, each service in the substitution collection corresponding to a different television channel that may be substituted, one for another; deriving a compressed substitution table from the substitution table, the compressed substitution table comprising the particular geographic locations for which the nominal service is not specified; and forming one or more communications, to be streamed over a packet-switched network to a client device that is to perform the at least one said service substitution, which includes the compressed substitution table and the content that corresponds to the at least one said service substitution.