Apparatus for generating and checking the error correction codes of messages in a message switching system
US5467359A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 1, 1993 |
| Grant date | Nov 14, 1995 |
| Priority date | — |
| Expiry date | Mar 1, 2013 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2001/0094
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
An error correction apparatus includes an error control circuit which computes for each burst of a message (for a destination unit) an error correction code as a function of an initial error correction code at the first burst of the message or of the error correction code of the previous burst and of the data bytes of the burst. The burst error correction code is sent on a medium which is separate from the data transport medium as a companion of the burst. Also, the error control circuit receives the burst error correction code from an origin unit and generates the burst error correction code to be compared with the received burst error correction code. If a mismatch is detected, the burst found in error is flagged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.