发明授权
- 专利标题: Dynamic forward error correction algorithm for internet telephone
- 专利标题(中): 互联网电话动态前向纠错算法
-
申请号: US907686申请日: 1997-08-08
-
公开(公告)号: US06167060A公开(公告)日: 2000-12-26
- 发明人: Mike Vargo , Jerry Chang
- 申请人: Mike Vargo , Jerry Chang
- 申请人地址: CA Redwood City
- 专利权人: Clarent Corporation
- 当前专利权人: Clarent Corporation
- 当前专利权人地址: CA Redwood City
- 主分类号: H03M13/03
- IPC分类号: H03M13/03 ; H03M13/35 ; H04L1/00 ; H04M3/12 ; H04M7/00 ; H04J3/22
摘要:
An Internet telephone system architecture having low latency and permitting voice communication between telephones and computers is disclosed. The architecture permits dynamic packet-to-packet change in various factors to adjust for Internet conditions. A forward error correction algorithm provides a variable level of redundancy from zero to three in the transmission of data packets. The level of error correction redundancy, the codec selection and other factors, are dynamically changeable by a voice port to replace lost packets without interpolation and to thereby maintain the highest voice quality and data compression ratio that is consistent with the quantity of packet loss.
公开/授权文献
信息查询
IPC分类: