发明名称 |
System for dynamic real-time television channel expansion |
摘要 |
A system is provided by which a single active video signal, along with a plurality of audio and data streams can be made to represent a number of different screens of information at a cable TV set. The system uses essentially only the bandwidth of a single video channel to provide a viewer with a plurality of screens, one or more of which include the same active video picture, simultaneously with other screens which display only audio and text/graphics. This multiple-screen capability is provided by a mapping function which creates an effective plurality of channels that are dynamically and seamlessly switched.
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申请公布号 |
US5534941(A) |
申请公布日期 |
1996.07.09 |
申请号 |
US19940245596 |
申请日期 |
1994.05.20 |
申请人 |
ENCORE MEDIA CORPORATION |
发明人 |
SIE, JOHN J.;BASAWAPATNA, GANESH R. |
分类号 |
H04N5/44;H04N5/45;H04N7/08;H04N7/16;(IPC1-7):H04N7/16 |
主分类号 |
H04N5/44 |
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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