Patent ID: 9423911
Filing Date: 2016-08-23
CPC Classification: G06F

Claim Text:
1. A touch point correction method, comprising: sensing a sensing point by an electromagnetic touch panel in response to a touch action, wherein the electromagnetic touch device comprises a plurality of longitudinal electrodes; detecting a first longitudinal base line of the longitudinal electrodes having a first maximal energy; detecting a right-side number of the longitudinal electrodes located in a right side of the first longitudinal base line and sensing energy; detecting a left-side number of the longitudinal electrodes located in a left side of the first longitudinal base line and sensing energy; using a side corresponding to the largest of the right-side number and the left-side number as a first inclined side, and defining a direction from the first longitudinal base line towards the first inclined side as a first inclined direction; detecting a second longitudinal base line of the longitudinal electrodes located in first inclined side and having a first sub-maximal energy; and correcting a position of the sensing point by a first correction towards a reverse direction of the first inclined direction according to a ratio of the first sub-maximal energy to the first maximal energy.