发明名称 System and method for merging interactive television data with closed caption data
摘要 A method and apparatus for delivering interactive television (ITV) data by using the same TV scan line that also carries closed caption data. The ITV data is inserted into the scan line with CC data by detecting a gap associated with a first CC data unit. If the gap is large enough to contain all of the group of ITV data units then electronically insert the entire group of ITV data units into the gap. If the gap is not large enough to contain the entire group of ITV data units, insert a subset of the entire group of the ITV data units into the gap and continue to the gaps associated with successive CC data units, inserting subsets of the ITV data into subsequent gaps until the entire ITV message has been inserted into the gaps between CC data units.
申请公布号 US2002129381(A1) 申请公布日期 2002.09.12
申请号 US20010840497 申请日期 2001.04.23
申请人 BARONE SAMUEL T.;SMITH DRAKE;DAVIS DAVID;STONE THOMAS 发明人 BARONE SAMUEL T.;SMITH DRAKE;DAVIS DAVID;STONE THOMAS
分类号 H04N5/44;H04N5/445;H04N7/088;H04N7/24;(IPC1-7):H04N7/16;H04N7/08;H04N7/00;H04N11/00;G09G5/00 主分类号 H04N5/44
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