초록 ▼

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. An encoder at the sending end derives p redundancy blocks from each group of a k payload

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. An encoder at the sending end derives p redundancy blocks from each group of a k payload blocks and concatenates the redundancy blocks, respectively, with payload blocks in the next group of k payload blocks. At the receiving end, a decoder may recover up to p missing packets in a group of k packets, provided with the p redundancy blocks carried by the next group of k 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.

대표청구항 ▼

[ We claim:] [1.] A method of encoding a sequence of payload blocks in a telecommunications network to enable recovery of lost payload blocks, said method comprising, in combination:deriving p redundancy blocks from each sequential group of k of said payload blocks; andcombining each of said p redun

[ We claim:] [1.] A method of encoding a sequence of payload blocks in a telecommunications network to enable recovery of lost payload blocks, said method comprising, in combination:deriving p redundancy blocks from each sequential group of k of said payload blocks; andcombining each of said p redundancy blocks, respectively, with a payload block in a subsequent sequential group of k of said payload blocks.