发明名称 Context-sensitive information delivery service
摘要 <p>Viewer interaction is allowed during a broadcast (11,31). A broadcast signal (16) originating at a broadcast station (10,30) is received. Also received is notification concerning additional interaction that is available to a viewer of a first program within the broadcast (11,31) signal. Information (82,83) is overlayed on a signal (11,31) for the first program. The overlayed information (82,83) provides to the viewer notification of availability of additional interaction associated with the first program. The signal (11) for the first program with the overlayed information (82,83) is output for display (81) on a viewing device. <IMAGE></p>
申请公布号 EP1189441(A3) 申请公布日期 2003.06.25
申请号 EP20010307778 申请日期 2001.09.12
申请人 HEWLETT-PACKARD COMPANY 发明人 WILHELMI, WILLIAM J.;SMITH, DONALD X.;LINDLEY, MARTYN
分类号 G06F13/00;H04H20/38;H04H20/76;H04N5/445;H04N5/765;(IPC1-7):H04N7/173 主分类号 G06F13/00
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