Method for correcting coordinates of portable electronic device using electronic pen
US9262028B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 15, 2014 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Jul 23, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F3/0442
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for correcting coordinates of an electronic pen having a pen contact and a coil which are spaced apart by a predetermined distance and an electronic pen by using a portable electronic device is provided. The method includes calculating a coordinate correction angle, calculating a coordinate correction distance from an electromagnetic induction point on a display unit of the portable electronic device, on which an electromagnetic field generated by electromagnetic induction between the coil and a sensor board of the portable electronic device is measured, to a contact point of the pen contact with respect to the display unit, and determining a coordinate of the electronic based on the calculated coordinate correction angle and the calculated correction distance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.