Electromagnetic induction system with single-induction-loop multi-induction-loop
US6882339B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 8, 2003 |
| Grant date | Apr 19, 2005 |
| Priority date | — |
| Expiry date | Sep 26, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/046
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A plurality of single-induction-loops are inserted in an electromagnetic induction system in which multi-induction-loop is deployed. Deployment of a multi-induction-loop layout is constituted by induction loops with sawtooth-shaped areas and close-like areas formed by -type sections of same and opposite phases for reducing the number of switch in use, completely deploying induction loops of X axis and Y axis on a same common contact, effectively reducing area demand of electromagnetic induction system, and thus increasing effective area of panel board in use. Moreover, in order to further enhance ability of interference immunity of electromagnetic induction system, a plurality of single-induction-loops are inserted around multi-induction-loop for isolating interference of noise to multi-induction-loop and thus relatively increasing linearity and efficiency of electromagnetic induction system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.