Signal transfer method and apparatus
US7907130B2 · kind B2 · utility
17Cited by
160References
30Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 5, 2003 |
| Grant date | Mar 15, 2011 |
| Priority date | — |
| Expiry date | May 6, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/03545
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An x-y digitising system is described which operates with a resonant stylus. The x-y digitising system includes an excitation winding for energising the resonant stylus and a number of sensor windings for receiving a signal re-radiated by the resonant stylus when energised. At least one of the excitation winding and the sensor winding is arranged to have its effective magnetic axis non-othogonal to the working area of the x-y digitising system. With this arrangement, improved energy transfer between the x-y digitising system and the resonant stylus can be achieved and/or improved position measurement accuracy can be obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.