Error detection and correction
US6941502B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 31, 2001 |
| Grant date | Sep 6, 2005 |
| Priority date | — |
| Expiry date | Oct 25, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/3738
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
Data are detected and corrected with first and second error detecting and correcting stages. The first stage error detection and correction capabilities are determined by the number of errors it can detect and correct in a predetermined length data stream. The first stage determines the number of known and unknown data stream errors, corrects errors within its capability, and outputs to the second stage error states relative to the data stream. One state indicates no known data stream errors or first stage data stream correction being attained with less than first stage capability. Another state indicates the number of data stream errors exceeds the predetermined capability, resulting in failure to make the correction. A third state indicates correction of all data stream errors using all the first stage capability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.