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    • 2. 发明授权
    • Optical transmission system, fec multiplexer, fec multiplexer/separator, and error correction method
    • 光传输系统,fec多路复用器,fec多路复用器/分离器和纠错方法
    • US07043162B2
    • 2006-05-09
    • US10031235
    • 2001-05-16
    • Kazuo KuboHideo YoshidaHiroshi Ichibangase
    • Kazuo KuboHideo YoshidaHiroshi Ichibangase
    • H04B10/00
    • H03M13/29H03M13/03H03M13/15H03M13/1515H03M13/2909H04L1/0041H04L1/005H04L1/0057H04L1/0066H04L1/0071
    • An FEC multiplexing circuit (2) has a configuration in which a first memory circuit (15) is arranged on the input stage of a first RS encoding circuit (16), a second memory circuit (17) is arranged on the input stage of a second RS encoding circuit (18), error correction encoding is performed by a combination of different data having two directions, and thereafter, error correction codes are multiplexed to generate an FEC frame. On the other hand, an FEC demultiplexing circuit (6) has a configuration in which a third memory circuit (42) is arranged on the output stage of a first RS decoding circuit (41), a fourth memory circuit (44) is arranged on the output stage of a second RS decoding circuit (43), error correction is performed by a combination of different data having two directions, and, thereafter, parallel data read from the fourth memory circuit (44) are multiplexed to reproduce original information data.
    • FEC复用电路(2)具有第一存储器电路(15)布置在第一RS编码电路(16)的输入级上的配置,第二存储器电路(17)布置在输入级 第二RS编码电路(18),通过具有两个方向的不同数据的组合来执行纠错编码,然后对纠错码进行多路复用以产生FEC帧。 另一方面,FEC解复用电路(6)具有第三存储电路(42)配置在第一RS解码电路(41)的输出级上的结构,第四存储电路(44)配置在 通过具有两个方向的不同数据的组合来执行第二RS解码电路(43)的输出级,然后对从第四存储器电路(44)读取的并行数据进行多路复用以再现原始信息数据。