Alignment detection by full and partial FEC decoding
US11601216B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 30, 2021 |
| Grant date | Mar 7, 2023 |
| Priority date | — |
| Expiry date | Nov 30, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L7/04
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A forward error correction (FEC) decoder is configured to find an alignment of a code block in a data stream by attempting to fully or partially decode one or more data windows of a predetermined size in the data stream. The predetermined size is a size of each codeword. The FEC decoder selects a first data window of the predetermined size, attempts to decode the first data window based on a particular error control coding method, and determines whether a valid codeword can be identified by attempting to decode the first data window. In response to determining that a valid codeword can be identified, the FEC decoder determines that an alignment of the codeword with the first data window is found. Otherwise, the FEC decoder selects a second data window of the predetermined size and attempts to decode the second data window.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.