发明名称 |
Memory Optimization Packet Loss Concealment in a Voice Over Packet Network |
摘要 |
A method to reduce memory requirements for a packet loss concealment algorithm in the event of packet loss in a receiver of pulse code modulated voice signals. A voice playout unit in the receiver shares its nominal delay buffer with a history buffer of a packet loss concealment algorithm up to a maximum limit described in a standard. This reduces or eliminates need to allocate memory for the history buffer. A history buffer can also be extended to retain an original portion of voice signal packets received prior to a packet loss as well as generated voice signals as they are generated. A scratch buffer is used as a working buffer and replaces the function of a pitch buffer.
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申请公布号 |
US2009310603(A1) |
申请公布日期 |
2009.12.17 |
申请号 |
US20090537715 |
申请日期 |
2009.08.24 |
申请人 |
TEXAS INSTRUMENTS INCORPORATED |
发明人 |
DOWDAL JOHN T.;ADLAKHA SACHIN;LI DUNLING |
分类号 |
H04L12/66 |
主分类号 |
H04L12/66 |
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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