公开(公告)号：US20060044162A1

公开(公告)日：2006-03-02

申请号：US10353305

申请日：2003-01-29

申请人： Sebastian Fenn ,  Allard Van Der Horst ,  Francisco Alcala ,  Peter Sweeney ,  Nicholas Weiner

发明人： Sebastian Fenn ,  Allard Van Der Horst ,  Francisco Alcala ,  Peter Sweeney ,  Nicholas Weiner

IPC分类号： H03M7/00

CPC分类号： H04L1/0065 ,  H03M13/151 ,  H03M13/19 ,  H03M13/29 ,  H03M13/2909 ,  H04B10/516 ,  H04L1/0041 ,  H04L1/0057

摘要： An encoder and an encoding method are suitable for use in an optical communication system. A concatenated coding scheme is used, in which the source data are encoded by means of an outer encoder to produce outer encoded data, and the outer encoded data are encoded by means of an inner encoder to produce inner encoded data, which are transmitted over a communications medium, such as an optical fibre. The inner encoder acts to produce inner encoded data in a format which occupies the space occupied one or more (for example, two) frames as defined in a standard, in this case the ITU-T G.709 standard. The inner encoder forms a product code from two sets of codewords, for example Extended Hamming codes. More particularly, at least one of the two sets of codewords is a shortened code, in order that the inner encoded data exactly occupies a plurality of frames as defined in the standard.

摘要翻译： 编码器和编码方法适用于光通信系统。 使用级联编码方案，其中源数据通过外部编码器编码以产生外部编码数据，并且外部编码数据通过内部编码器编码以产生内部编码数据，其通过 通信介质，如光纤。 内部编码器用于以占用占用标准中定义的一个或多个（例如两个）帧的格式的格式产生内部编码数据，在这种情况下为ITU-T G.709标准。 内部编码器形成来自两组码字的产品代码，例如扩展汉明码。 更具体地，两组码字中的至少一个是缩短的代码，以便内部编码数据恰好占据标准中定义的多个帧。