Abstract: A touch sensing method adapted for an electronic apparatus including a touch panel is provided. The touch sensing method includes the following steps: driving the touch panel by a mutual capacitance mode and a self capacitance mode; sensing a gesture applied on the touch panel, wherein the gesture forms at least one touch area on the touch panel; determining at least one geometric center of the at least one touch area based on self-mode data obtained in the self capacitance mode; and determining at least one touch location associated with the gesture on the touch panel based on the at least one geometric center of the at least one touch area. Furthermore, an electronic apparatus to which the foregoing touch sensing method is applied is also provided.

Abstract: A touch sensing method adapted for a touch panel is provided. The touch sensing method includes following steps. An average value of touch values generated by a touch object on the touch panel is calculated during a first frame period. An amplitude value of the touch values generated by the touch object on the touch panel is calculated based on the average value during a second frame period. Whether the touch object is a target to be sensed is determined based on the amplitude value. Furthermore, a touch sensing apparatus is also provided.

Abstract: A method and an apparatus for detecting a touch point movement are provided. In the present method, a touch panel is detected to obtain the positions of m previous touch points Pi during a frame period and the positions of n current touch points Pj? during another frame period. Distances D(i,j) between the previous touch points Pi and the current touch points Pj? are calculated, and a minimum distance among valid ones of the distances D(i,j) is found out. If a distance D(a,b) among the distances D(i,j) is the minimum distance, the current touch point Pb? is defined as a touch point moved from the previous touch point Pa, and the distances D(a,1)-D(a,n) and the distances D(1,b)-D(m,b) are defined as invalid values.

Abstract: A positioning method and a driving apparatus for a touch panel having a plurality of sense electrodes in an axis direction are disclosed. The driving apparatus detects the sense electrodes to obtain a plurality of sensed values. The driving apparatus counts the number of multiple candidate electrodes, wherein the candidate electrode is an electrode having a sensed value larger than a first threshold value. The first threshold value is increased and the number of the candidate electrodes is counted again if the number of the candidate electrodes is larger than a second threshold value. At least one electrode is selected as a positioning electrode from the candidate electrodes if the number of the candidate electrode is not larger than the second threshold value. A position of a touch point on the touch panel in the axis direction is calculated based on the position and sensed value of the positioning electrode.