System and method of locating the center of a track on a magnetic storage disk
US4485418A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 12, 1982 |
| Grant date | Nov 27, 1984 |
| Priority date | — |
| Expiry date | Aug 12, 2002 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/59627
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A system and method of accurately locating the center of a previously recorded magnetic track on a rotating magnetic storage disk and moving a transducer to the center of the track. The system measures in increments the amplitude of the feedback signal as the transducer is moved to each side of the recorded track and compares the signal amplitude measured with a predetermined reference level. Through the use of an offset measuring system connected to a computer processor the number of increments moved in each direction is recorded and a simple calculation is made to determine the center of the magnetic track. The transducer for recording and replaying information on the disk is then moved to the center of the track.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.