Touchscreen Handwriting Input Area Determination via Initial Point Detection
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Solution Overview
Problem
Conventional handwriting input on touch screens is inefficient, requiring separate steps for locating the input target, editing, and correcting errors, which can be cumbersome and time-consuming, especially for complex languages like Chinese and Japanese.
Innovation Solution
A method and device that allow direct handwriting input on a touch screen, where the initial point of input determines the input area and operation, enabling automatic recognition and correction of characters without the need for explicit target location or deletion, by combining new inputs with existing strokes to form corrected characters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the user follows the conventional operation of locating the input target before inputting, then the input can be made at the correct position, but the operation becomes complex and time-consuming with multiple separate steps
Solution Approach 1:
The patent merges the target location step and the input step into a single unified operation. When the user performs handwriting input, the system automatically determines the input target based on the initial position of the handwriting, eliminating the need for separate location and input actions. This combines what were previously two distinct steps into one fluid operation.
Solution Approach 2:
The system performs automatic target identification based on the handwriting's initial position without requiring the user to explicitly select or locate the target first. The device serves itself by automatically determining where the input should be applied based on the natural starting point of the user's handwriting gesture.
2Measurement precision
If the user follows the conventional correction process of locating the error, deleting it, and inputting the correct character, then the correction can be made accurately, but the correction process becomes cumbersome with three separate steps
Solution Approach 1:
The patent merges the error location, deletion, and correction input steps into a single unified correction operation. When the user performs handwriting input, the system automatically identifies whether it's a correction operation based on the initial position, automatically handles the deletion of the erroneous character, and inputs the correct character in one continuous action.
Solution Approach 2:
The system automatically performs the deletion and correction operations without requiring the user to explicitly delete the wrong character first. Based on the initial position of the handwriting and context analysis, the system self-services by automatically removing the error and inserting the correct character.
3Measurement precision
If the system requires explicit target location before input, then the input can be made at the precise intended position, but the overall input efficiency decreases due to the additional locating step
Solution Approach 1:
The patent merges the target location function with the input execution function. The system determines the input target position automatically from the initial position of the handwriting input, combining what were previously separate location and input operations into a single efficient action that maintains positional accuracy while improving speed.
Data Source
AI summary
A method and an electronic device for inputting handwriting character are provided. The electronic device comprises a touch screen, a memory, and a processor. The processor is configured to perform the functions of the method. The method comprises steps of: adding a handwriting input on the touch screen; detecting a position of an initial point of the handwriting input; determining an input area for the handwriting input among the plurality of input areas of the touch screen based on the position of the initial point of the handwriting input; determining an operation of the handwriting input based on the position of the initial point of the handwriting input and performing the determined operation; and upon completion of the handwriting input, recognizing the input as a character and displaying the recognized character in the determined input area on the touch screen.