Fast AtA-compatible drive interface with error detection and/or error correction
US5784390A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1995 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Jun 19, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F13/385
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An ATA-compatible drive interface with error correction and detection capabilities is disclosed. Being fully ATA backward compatible, this interface functions with the same physical cable and connectors as current ATA systems, employs bus drivers that are the same as or backward compatible with those provided by earlier versions of the ATA standard and uses signals with cable signal transitions no faster than those presently seen by current ATA devices. The error detection feature indicates when a data block is erroneously transferred between the device and host; the error correction feature identifies the words transmitted in error and corrects those words on the receiving side of the interface. So that ATA backward compatibility is maintained, the data integrity checking feature does not require additional words in a data transfer, and the data correction feature does not require new data transfer protocols or additional data transfer overhead. Also disclosed are interface circuitry and a new ATA-compatible transfer mode capable of transferring data at 40 MB/sec, the rate supported by local bus adapters for disk drives. Given the physical limits of the ATA cables and connectors, …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.