发明名称 |
VARIABLE BIT RATE TRANSMISSION OF AV SIGNAL IN PACKET NETWORK |
摘要 |
<p>Sample packets (S1-Sn) are formed from an input signal (1), there being a sample period (P1-Pn) related to each sample packet. The sample packets are inserted into a packet network (4) and transmitted to a recipient. The information content of the input signal per time unit (BR) is monitored and the information content of each sample packet (S1-Sn) is kept substantially constant on the basis of this information by controlling the duration of the sample period (P1-Pn) of the sample packets. Information on the duration of the sample period (P1-Pn) is transmitted to the recipient in the packet network packet. The packets (4) are received in the receiver and sample packets (S1-Sn) are separated from them and supplied to a decoder (7). Information on the duration of the sample period (P1-Pn) is also separated and supplied to the decoder (7), which uses it as the playing time of the restored output signal (8).</p> |
申请公布号 |
EP1074126(B1) |
申请公布日期 |
2004.11.03 |
申请号 |
EP19990952137 |
申请日期 |
1999.05.18 |
申请人 |
NOKIA CORPORATION |
发明人 |
KAARESOJA, TOPI;BERGENWALL, MARTIN |
分类号 |
H04N7/26;G10L19/00;H04L12/56;H04L29/06;H04Q7/38;H04Q11/04;(IPC1-7):H04L12/56 |
主分类号 |
H04N7/26 |
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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