Patent ID: 7945925

Claim:
A method of processing copy protection in a host coupled to a cable card in a cable broadcast receiver, the method comprising the steps of: receiving multi-streams conveying multiple simultaneous programs; multiplexing the multi-streams by appending local stream identifiers to each stream of the received multi-streams, the local stream identifiers being generated by the host, wherein each of the local stream identifiers is a local transport stream identifier (LTSID) assigned by the host in order to identify each stream of the multiplexed multi-streams, and the LTSID is assigned to each of the multi-streams not to be duplicated; transmitting the multiplexed multi-streams to the cable card; receiving copy control information corresponding to the appended local stream identifiers for each stream of the transmitted multi-streams from the cable card; and controlling copy of each stream of the multi-streams based on the copy control information corresponding to each of the local stream identifiers, wherein the copy control information includes an encryption mode indicator indicating copy permissions for digital copy, an analog protection system indicating copy permissions for analog output, and a constrained image trigger indicating image constraint for analog component output.