Patent ID: 7548565
Filing Date: 2009-06-16
Classification: G06F,G06T,G11B

Abstract:
1. A method of providing metadata service, comprising: supplying a broadcast stream from a broadcaster to a metadata service provider and a user's receiving device, said broadcast stream comprising TV and audio programs and system times in a System Time Table (STT) for Advanced Television System Committee broadcasts or a Time Data Table (TDT) for Digital Video Broadcasting broadcasts; at the metadata service provider, extracting said system time from either said STT or said TDT; transcoding said broadcast stream while associating each frame of said transcoded stream with said system times; and analyzing said transcoded stream to generate metadata associated with said stream, said metadata having one or more timestamps; and delivering said metadata having said timestamps to the user's receiving device, whereby said timestamps are represented in said system times in STT or TDT to identify one or more particular locations corresponding to said timestamps in said received broadcast stream to which said metadata is applicable.