Abstract: A touch control method of a capacitive and electromagnetic dual-mode touch screen and handheld electronic device are disclosed. The method includes receiving a touch instruction generated on the touch screen; judging whether the touch instruction is a capacitive induction instruction or an electromagnetic induction instruction; processing the touch instruction according to a handwriting input mode if the touch instruction is a capacitive induction instruction, or processing the touch instruction according to a touch control mode if the touch instruction is an electromagnetic induction instruction. By the above method, the invention can fulfill the demand for presenting original handwriting by a user, as well as the requirement for a simple and convenient operation.

Abstract: The present invention provides a method and device for implementing original handwriting trace, and an electronic device. The method comprises: continuously sampling handwriting trace in time order, and detecting location information and the actual stroke widths at the sampling points; for every two adjacent sampling points, determining the former point as the starting sampling point, determining the latter point as the ending sampling point, using a line connecting the two points as the center line of the stroke between the two sampling points, obtaining location information of and the corresponding longitudinal stroke width at each point on the center line, and determining, according to the location information of and the corresponding longitudinal stroke width at each point on the center line, the fill gray value of each pixel in the stroke; and filling, according to the fill gray values, the corresponding pixels, and displaying the pixels.

Abstract: Provided are a method and device for implementing the original calligraphy of handwriting. The method comprises: carrying out a real time sampling of a contact to obtain position information about the sampling point and the pen width at the sampling point; determining a central line of the stroke determined by adjacent sampling points; determining position information about a key point of the corresponding stroke according to the central line and the pen width at the sampling point; dividing the key point of the stroke into groups to determine the type thereof; generating a calligraphy outline of the corresponding stroke by drawing an arc and/or a line according to the type of the key point and the position information about the same; and finally filling the outline for displaying. The displayed handwriting trace has the same calligraphy of handwriting as characters written on paper.

Abstract: Disclosed are a system and method for recording and querying an original handwriting trace and an electronic device.