LDPC encoder and method thereof
US7072417B1 · kind B1 · utility
54Cited by
23References
42Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2000 |
| Grant date | Jul 4, 2006 |
| Priority date | — |
| Expiry date | Jun 6, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/118
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention directed to a method and apparatus to perform low-density parity-check code encoding of user data u of length Nu, by inserting parity data p of length Np into output data c of length N in accordance with a parity matrix H such that H·c=0, comprising the steps of: (a) receiving the user data of block length Nu; (b) decomposing H·c into a first component Hu·u corresponding to the user data and a second component Hp·p corresponding to the parity data such that Hu·u+Hp·p=0; (c) calculating a vector u=Hu·u; and (d) calculating p=Hp−1·u.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.