Mobile communication terminal and method
During handwriting recognition input, when the user needs to input, e.g., a digit or a commonly used punctuation symbol (e.g. comma and period) into a text, she/he can simply make a single-click or a double-click on a corresponding “shortcut” sub-area on the touchpad under the existing input mode and the digit or punctuation symbol will be input. The “shortcuts” of the grid are advantageously arranged as the layout of the dial keys of telephones, which is easy to remember.
1 . A method of controlling a mobile communication terminal, said terminal comprising a control unit, a display and touch sensitive means that are configured to recognize handwriting via trace signals generated as a user writes within a hand writing recognition area on the touch sensitive means, said method comprising, while sensing and analyzing a trace signal comprising a sequence of position detections:
recognizing a tapping action at a detected action position,
selecting a specific symbol from a set of predetermined symbols, said selection being performed in dependence of the detected action position, and
providing the selected symbol for use in said control of the mobile communication terminal.
2 . The method of claim 1 wherein the symbols in said set of predetermined symbols are associated with a respective sub-area within the writing recognition area and wherein the selection is performed in dependence on within which sub-area the action position is.
3 . The method of claim 2 wherein said sub-areas are arranged in rows and columns within the writing recognition area.
4 . The method of claim 1 wherein the tapping action is a single-click action.
5 . The method of claim 1 wherein the tapping action is a double-click action.
6 . The method of claim 1 wherein the predetermined set of symbols comprises the sequence of digits 0 to 9.
7 . The method of claim 1 wherein the predetermined set of symbols comprises at least one punctuation symbol.
8 . The method of claim 1 wherein the control of the terminal comprises a text editing operation.
9 . A mobile communication terminal comprising a control unit, a display and touch sensitive means that are configured to recognize handwriting via trace signals generated as a user writes within a hand writing recognition area on the touch sensitive means, said terminal comprising:
control means for sensing and analyzing a trace signal comprising a sequence of position detections,
recognizing means for recognizing a tapping action at a detected action position,
selection means for selecting a specific symbol from a set of predetermined symbols, said selection being performed in dependence of the detected action position, and
provision means for providing the selected symbol for use in said control of the mobile communication terminal.
10 . The mobile communication terminal of claim 9 wherein the touch sensitive means are arranged in combination with the display thereby constituting a touch sensitive display.
11 . The mobile communication terminal of claim 9 wherein the touch sensitive means are arranged separately with respect to the display thereby constituting a touch sensitive pad.
12 . A computer program comprising software instructions that, when executed in a mobile communication terminal comprising a control unit, a display and touch sensitive means that are configured to recognize handwriting via trace signals generated as a user writes within a hand writing recognition area on the touch sensitive means, controls the terminal while sensing and analyzing a trace signal comprising a sequence of position detections by recognizing a tapping action at a detected action position, selecting a specific symbol from a set of predetermined symbols, said selection being performed in dependence of the detected action position, and providing the selected symbol for use in said control of the mobile communication terminal.