Patent ID: 8559465
Filing Date: 2013-10-15
Classification: H04L,H04N

Abstract:
1. In a data delivery network, a method of providing a plurality of variable rate program streams having at least primary and secondary data therein to a plurality of users having a client device coupled to said network, said method comprising: receiving at a node of said data delivery network, a plurality of first constant bitrate streams, said first constant bitrate streams comprising: removing at least a portion of said null data from said plurality of first constant bitrate streams to produce one or more second variable bitrate streams; selectively inserting a third variable amount of secondary data into said one or more second variable bitrate streams, said amount inserted comprising an amount necessary to generate one or more third constant bitrate streams; and transmitting said one or more third constant bitrate streams to at least one client device associated to at least one of said plurality of users; wherein said act of selectively inserting is performed in response to said at least one user selecting said secondary data for download.