System for correcting errors in data frames having horizontal and vertical parity codes
US6032283A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 1997 |
| Grant date | Feb 29, 2000 |
| Priority date | — |
| Expiry date | Jul 15, 2017 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03M13/152
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention relates to a method for correcting errors in a data frame including horizontal parity data enabling correction of errors in the rows of the frame based on horizontal syndromes calculated on the rows, and vertical parity data enabling correction of errors in the columns of the frame based on vertical syndromes calculated on the columns. The method includes the steps of calculating, on the fly, the horizontal and vertical syndromes of a current frame on the data of the current frame being received in a slow memory, storing these syndromes in a fast memory area, and, as the data of the next frame are being received in the slow memory, finding the values and positions of the errors of the current frame based on the syndromes stored in the fast memory area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.