Method and apparatus for encoding and decoding data
US7203897B2 · kind B2 · utility
21Cited by
3References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 1, 2005 |
| Grant date | Apr 10, 2007 |
| Priority date | — |
| Expiry date | Nov 25, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/116
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
A base model matrix is defined for the largest code length of each code rate. The set of shifts {p(i,j)} in the base model matrix are used to determine the shift sizes for all other code lengths of the same code rate. Shift sizes {p(f; i, j)} for a code size corresponding to expansion factor zf are derived from {p(i,j)} by scaling p(i,j) proportionally, and a model matrix defined by {p(f,i,j)} is used to determine the parity-check bits for the f-th code.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.