Servo burst pattern for removing offset caused by magnetic distortion and method associated therewith
US5523902A · kind A · utility
93Cited by
25References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 26, 1994 |
| Grant date | Jun 4, 1996 |
| Priority date | — |
| Expiry date | Oct 26, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/596
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An alternating "A/B" servo burst pattern for measuring and compensating for offset of the track centerline due to differential magnetic influence to the servo pattern, and a switching network to alternate the output of the servo system demodulators between the inverting and non-inverting terminals of a differential amplifier so that electrical distortion is minimized.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.