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Digital program mapping

  • US 20060291460A1
  • Filed: 05/12/2005
  • Published: 12/28/2006
  • Est. Priority Date: 05/12/2005
  • Status: Active Grant
First Claim
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1. A method for manipulating programs within one or more transport streams, said method comprising the steps of:

  • assigning a first program to a first program entry (PE 1), said first program having a first input program map table (PMT 1) identifying a first service ID and a plurality of first PIDs associated with a first plurality of elementary streams of said first program;

    assigning a second program to a second program entry (PE 2), said second program having a second input program map table (PMT 2) identifying a second service ID and a plurality of second PIDs associated with a second plurality of elementary streams of said second program;

    providing an alternate program to said first program, said alternate program having a third input program map table (PMT 3) identifying a third service ID and a plurality of third PIDs associated with a third plurality of elementary streams of said alternate program;

    discarding said first plurality of elementary streams of said first program and said plurality of first PIDs associated with said first program; and

    remapping said alternate program such that said alternate program includes an output PMT identifying said first service ID of said first program and having said plurality of third PIDS referencing said third plurality of elementary streams of said alternate program.

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