发明名称 |
Method and system for controlling an encoding rate in a variable rate communication system |
摘要 |
<p>A method and system for controlling an encoding rate in a communication system utilizes feedforward rate information (48) and/or rate desirability information (50) sent from each of a plurality of variable rate vocoders (34) to a communication link output controller (24), such as a network arbitor. The communication link output controller (24) then sends a feedback control signal (32) to a selected variable rate vocoder to change the encoding rate of the selected variable rate vocoder to facilitate re-encoding of the speech packet when a bottleneck is detected. In another embodiment, the network arbitor (134) may additionally and independently modify speech packet data when it determines that a bottleneck may occur. The network arbitor (134) also communicates a packet modification control signal (132) for the variable rate vocoder that generated the dropped packet so that the corresponding variable rate vocoder can adjust its filter states to maintain convergence.</p> |
申请公布号 |
EP1008244(B1) |
申请公布日期 |
2005.12.14 |
申请号 |
EP19980920367 |
申请日期 |
1998.05.08 |
申请人 |
MOTOROLA, INC. |
发明人 |
PROCTOR, LEE, MICHAEL;ASHLEY, JAMES, PATRICK |
分类号 |
H04B7/26;H04B14/04;H04J3/16;H04L29/08;H04Q11/04;H04W28/22;H04W88/18;(IPC1-7):H04J3/14;H04J13/00 |
主分类号 |
H04B7/26 |
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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