发明名称 |
INCORPORATING GRAPHICS AND INTERACTIVE TRIGGERS IN A VIDEO STREAM |
摘要 |
Triggers for interactive television display are incorporated into a video stream in coordination with graphics associated with the triggers. Graphic sources such as channels (16, 18) of a character generator (21) supply graphics associated with the triggers to graphic signal inputs (26, 28) of a switch. When a channel supplies a graphic, a message denoting the associated trigger and associating the trigger with the channel is forwarded to a gateway computer (60). The gateway computer monitors connections between graphic signal inputs (26, 28) and the video output (32) of the switch, and forwards triggers associated with a particular channel to an inserter (40) only if such channel is connected to output (32).
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申请公布号 |
WO0160053(A9) |
申请公布日期 |
2003.01.16 |
申请号 |
WO2001US04436 |
申请日期 |
2001.02.09 |
申请人 |
CHYRON CORPORATION |
发明人 |
MARTINOLICH, JAMES;ALTEMOSE, JAMES;BYRNE, WILLIAM;HENDLER, WILLIAM, D. |
分类号 |
H04N7/088;H04N7/16;H04N7/173;H04N7/24;(IPC1-7):H04N5/00;H04N5/445 |
主分类号 |
H04N7/088 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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