发明授权
- 专利标题： Forward error correction system for packet based real time media
- 专利标题（中）： 用于基于分组的实时媒体的前向纠错系统
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申请号： US989483申请日： 1997-12-12
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公开(公告)号： US5870412A公开(公告)日： 1999-02-09
- 发明人: Guido M. Schuster , Jerry Mahler , Ikhlaq Sidhu , Michael Borella
- 申请人： Guido M. Schuster , Jerry Mahler , Ikhlaq Sidhu , Michael Borella
- 申请人地址： CA Santa Clara
- 专利权人： 3Com Corporation
- 当前专利权人： 3Com Corporation
- 当前专利权人地址： CA Santa Clara
- 主分类号： G06F11/00
- IPC分类号： G06F11/00 ; H03M13/00 ; H03M13/27
摘要：
A computationally simple yet powerful forward error correction code scheme for transmission of real-time media signals, such as digitized voice, video or audio, in a packet switched network, such as the Internet. The invention appends to each of a series of payload packets a single forward error correction code that is defined by taking the XOR sum of a preceding specified number of payload packets. The invention thereby enables correction from the loss of multiple packets in a row, without significantly increasing the data rate or otherwise delaying transmission.
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