File control system and file control device
US7624324B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 2005 |
| Grant date | Nov 24, 2009 |
| Priority date | — |
| Expiry date | Mar 5, 2027 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L1/0082
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A file control system performing DMA (direct memory access) transfer is provided. The file control system includes file control devices, and each of the file control devices is provided between a host computer and an external storage device. A first file control device among the file control devices checks for errors in the data read from a memory, changes the error detection code added to the read data from a first error detection code to a second error detection code, changes at least a part of the data when an error is detected, and executes DMA-transfer of the data, which is changed or is not changed, to a second file control device of the transfer destination.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.