Patent ID: 6996101
Filing Date: 2006-02-07
Classification: H04L,H04N

Abstract:
1. A method for re-mapping packet identifier (PID) values provided in transport packets associated with multiple transport streams to be multiplexed onto a single shared transport channel, said method comprising: providing at least one PID re-map table having re-map values indexed by n possible PID values of transport packets associated with at least one transport stream of the multiple transport streams, wherein n is less than all possible PID values of transport packets within said multiple transport streams; comparing PID values of transport packets associated with said at least one transport stream with said n possible PID values of said at least one PID re-map table, and when a match is found, indexing said at least one PID re-map table using said matching PID value, generating therefrom a re-map value, and replacing said matching PID value by said re-map value; wherein when a non-matching PID value is found, performing at least one of: replacing said non-matching PID value with a null value, meaning that the associated transport packet is to be discarded; or performing clock recovery on the at least one transport stream and discarding the transport packet associated with said non-matching PID value; and wherein said single shared transport channel couples to a transport demultiplexor, and wherein said transport demultiplexor can handle x PID values, and n≦x, and wherein said n possible PID values equals 32 possible PID values.