发明名称 |
TRANSMISSION OF VIDEO USING VARIABLE RATE MODULATION |
摘要 |
<p>A system and method for transmitting encoded video signals using a variable rate modulation scheme. In one embodiment a transmitter is provided comprising a system for partitioning the video into a plurality of streams; a system for determining a priority for each of a plurality of streams of encoded video data; and a system for assigning a different modulation rate to each stream of encoded video data based on the determined priority. Specifically, a lower, more robust, modulation is preferably used for higher priority streams, and a higher, less robust, modulation is preferably used for lower priority streams in such a way that an average rate is maintained.</p> |
申请公布号 |
EP1438859(A1) |
申请公布日期 |
2004.07.21 |
申请号 |
EP20020801446 |
申请日期 |
2002.10.01 |
申请人 |
KONINKLIJKE PHILIPS ELECTRONICS N.V. |
发明人 |
KRISHNAMACHARI, SANTHANA;MEEHAN, JOSEPH, P.;COHEN, ROBERT, A. |
分类号 |
H04N7/32;H04N21/2343;H04N21/2383;H04N21/2385;H04N21/438;H04N21/63;(IPC1-7):H04N7/24 |
主分类号 |
H04N7/32 |
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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