Method and system of searching note items

A system of searching note items, wherein the system comprises:

• a touchscreen;
• a memory;
• a gesture detecting unit for detecting a gesture input from a touchscreen;
• a gesture saving unit for saving the gesture, which is detected by said gesture detecting unit or chosen from gestures having been input, and the corresponding relation between the gesture and a note item into the memory;
• and
• a searching unit for searching a matching gesture from the gestures saved in said memory according to the gesture detected by said gesture detecting unit, and if the matching gesture is found, displaying each note item corresponding to the matching gesture according to said corresponding relation,
• wherein said gesture contains the following information:
• pattern, handwritten speed of strokes making up the pattern, writing area and pressure of strokes making up the pattern, order and track of strokes making up the pattern, and
• wherein the following way is used by said searching unit to determine whether two gestures are matched:
• if the similarity of the patterns of two gestures exceeds a predetermined threshold, and the similarity of the handwritten speed of the strokes of the patterns of two gestures exceeds a predetermined threshold, and the similarity of the writing area and the pressure of the strokes of the patterns of two gestures exceeds a predetermined threshold, and the similarity of the order and the track of the strokes of the patterns of two gestures exceeds a predetermined threshold, conforming with the above detection, then determines that the two gestures are matched.