Forward error correction CODEC
US8136020B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 29, 2007 |
| Grant date | Mar 13, 2012 |
| Priority date | — |
| Expiry date | Jan 11, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/155
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A present invention discloses a method for performing forward error correction (FEC) in long-haul submarine transmission systems. Data is encoded at a transmitter by serially concatenated, binary Bose-Ray-Chaudhuri-Hocquenghem (BCH) error correcting codes. The invention encodes a stream of data employing a plurality of serially concatenated, binary Bose-Ray-Chaudhuri-Hocquenghem (BCH) error correcting codes, arranging data into a frame of parallel data blocks (the outer frame) with redundancy bits appended by a BCH(3896, 3824) code; the outer frame is then interleaved to produce a frame of serial data blocks (the intermediate frame); and the final frame (the inner frame) is produced by appending the redundancy bits of the BCH(2040, 1952) code to the intermediate frame. The data, once encoded, is transmitted across a datapath and decoded at the receiver.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.