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Methods and apparatus for processing multimedia broadcasts

  • US 6,549,241 B2
  • Filed: 05/22/2001
  • Issued: 04/15/2003
  • Est. Priority Date: 12/11/1998
  • Status: Expired due to Fees
First Claim
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1. A method of processing a digital transport stream including a plurality of multiplexed data streams, said plurality of multiplexed data steams including an audio data stream and a broadcast data stream, the method comprising the steps of:

  • receiving said digital transport stream;

    demultiplexing the received transport stream into said audio stream and said broadcast data stream, the broadcast data stream including data payloads and headers, a first plurality of said headers including category information and location information, a second plurality of said headers including category information and a filename, the broadcast data stream further including at least one data payload corresponding to each header in the second plurality of headers;

    examining the category information included in each of the first and second plurality of received headers to determine if said category information matches a category of interest;

    for each received header in the first and second plurality of received headers whose category information is determined to match a category of interest;

    storing received header information as an entry in a table, the stored header information included in each table entry including at least one of a filename having a corresponding data payload associated therewith and a location; and

    for each table entry including a filename having a corresponding data payload associated therewith, storing the corresponding data payload.

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