Patent ID: 8184952
Filing Date: 2012-05-22
Classification: H04N

Abstract:
1. A method of identifying segment boundaries for a sequence of segments forming a programming event transported within a transport stream, the method comprising: embedding segment messages within each segment of the transport stream used to transport the programming event; wherein at least two messages, defined as boundary marker messages, are embedded within each segment to identify segment boundaries, a first one of the boundary marker messages identifying a beginning of the segment and a second one of the boundary marker messages identifying an ending of the segment; wherein at least one message, defined as a decoy message, is embedded within each segment to obfuscate at least one of the boundary markers; and embedding data within at least a portion of the boundary markers and the decoys, the data embedded in the boundary markers identifying an actual ending or beginning of the segment and the data embedded with the decoys identifying a decoy ending or beginning of the segment, the decoy ending or beginning being different from the actual ending or beginning.