Magnetic calibration array
US7133793B2 · kind B2 · utility
102Cited by
156References
68Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 23, 2004 |
| Grant date | Nov 7, 2006 |
| Priority date | — |
| Expiry date | Apr 28, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A calibration system is provided for use in generating calibration data for calibrating an X-Y digitiser. The calibration system uses an alignment head having an array of magnetic field generators which are for alignment with the X-Y digitiser. Each of the magnetic field generators is individually drivable so that calibration data can be obtained for different positions on the X-Y digitiser corresponding to the positions of the magnetic field generators in the array. The resulting calibration data is then used to generate a correction map which is stored in the X-Y digitiser
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.