Method and apparatus for recovering data
US5189566A · kind A · utility
32Cited by
3References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 15, 1990 |
| Grant date | Feb 23, 1993 |
| Priority date | — |
| Expiry date | Mar 15, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B2020/183
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a method for recovering data from a portion of a magnetic surface that contained a read error. After a read error is encountered a magnetic transducer undergoes a head state change. The head state change is accomplished by either writing to a reserve area of the magnetic surface and or reading a portion of the magnetic surface and then rewriting to that portion of the magnetic surface. After the magnetic transducer undergoes a head state change, the portion of the magnetic surface that contained the read error is reread.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.