Magnetic disk apparatus with head supporting structures of different proper oscillations
US5014142A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 1989 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Mar 22, 2009 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/5565
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A magnetic disk apparatus has a disk assembly including a single servo disk and a plurality of data disks, a servo-head supporting structure for supporting a servo head and data-head supporting structures for supporting data heads. These heads are so disposed as to cooperate with respective disks. The servo-head and data-head supporting structures are driven by an actuator to move the servo head and the data heads to the required positions on the corresponding disks. The servo-head supporting structure and each of the data-head supporting structures have different proper oscillations to prevent the occurrence of a resonance during a seek operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.