Position detecting method and system
US9195360B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 15, 2013 |
| Grant date | Nov 24, 2015 |
| Priority date | — |
| Expiry date | Mar 10, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/04166
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A position detecting method includes: transmitting to a position indicator a first excitation signal that has a variable frequency and then receiving a first response signal therefrom, via a target antenna unit including a target antenna; determining, based on the first response signal, a target frequency of the first excitation signal at which the first response signal has a maximum energy level; continuously transmitting to the position indicator a second excitation signal that has the target frequency and then receiving a second response signal from the position indicator, via a group of antenna units including the target antenna unit individually and successively; and obtaining position information corresponding to the position indicator based on the second response signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.