Digital computer having an error correction code (ECC) system with comparator integrated into re-encoder
US5598422A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1995 |
| Grant date | Jan 28, 1997 |
| Priority date | — |
| Expiry date | Sep 7, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/20
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A digital computer system has an error correction code (ECC) syndrome encoder for generating initial ECC syndromes from digital words input to the system which are received together with their corresponding ECC syndromes, in the system receiving circuitry. The system has an ECC syndrome re-encoder for generating second ECC syndromes from the digital words as they are removed from the receiving circuitry. A comparison circuit then compares the originally encoded syndrome with the re-encoded syndrome as it is being generated, to detect whether there is a difference and therefore an error in the digital word or an error in the syndrome. The comparison circuit is integrated into and is a part of the ECC re-encoder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.