Touch Screen Chinese Input Gesture Recognition
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Solution Overview
Problem
Chinese language input on touch screens is inefficient due to the need for sequential selection of pinyin 'initials' and 'finals', which can lead to increased time and error in character input, especially on devices with size constraints.
Innovation Solution
A method and device that display 'initials' on a touch screen, allowing continuous touch input to transition to 'finals' and optionally tones, enabling users to select 'finals' by sliding their finger and 'tones' through specific regions, thereby reducing input time and improving accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sequential selection of pinyin initials and finals is used on touch screens, then input accuracy can be maintained, but input time increases significantly
Solution Approach 1:
The patent combines the selection of pinyin initials and finals into a single continuous gesture operation. Instead of requiring separate selection steps for initials and finals, the system allows users to perform both selections in one continuous motion, thereby reducing input time while maintaining accuracy through the structured gesture recognition process.
Solution Approach 2:
The system displays all available pinyin initials and finals in advance on the touch screen before the user begins input. This preliminary presentation allows users to plan and execute their selection in a single gesture without intermediate delays for loading or transitioning between different selection screens, thus reducing overall input time.
2Adaptability or versatility
If multiple successive screens are used to capture input on devices with size constraints, then all input options can be displayed, but user operation becomes more complex
Solution Approach 1:
The patent transitions from a temporal sequence of multiple screens to a spatial arrangement where all pinyin options are displayed simultaneously on a single screen. Users navigate through the options using spatial gestures (swiping motions) rather than navigating through multiple temporal screens, thereby reducing operational complexity while maintaining complete display of all input options.
Solution Approach 2:
The touch screen interface is designed to serve multiple functions simultaneously: displaying all pinyin initials and finals, recognizing gesture directions, and determining character selections all within a single unified interaction framework. This multi-functionality eliminates the need for separate screens for each function, simplifying the overall user operation.
3Adaptability or versatility
If traditional multi-step Chinese input method is used, then comprehensive character selection is possible, but productivity decreases
Solution Approach 1:
The patent implements a continuous gesture-based input method where users can select multiple pinyin components and characters in one unbroken motion. This continuity eliminates the stop-and-start nature of traditional multi-step input methods, maintaining comprehensive character selection capability while significantly improving input efficiency through uninterrupted user action.
Data Source
AI summary
Disclosed are methods and devices for Chinese language input to a touch screen. A method can include displaying pinyin “initials” on the touch screen and sensing a touch input at a first position of the touch screen. If the touch input is continuously sensed at the first position for a predetermined period of time, the method can include determining a pinyin “initial” and then discontinuing displaying the pinyin “initials” and displaying pinyin “finals” on the touch screen. By sensing a removal of the touch input from the touch screen at a second position, a selected “final” is determined. The method can also include displaying at least one Chinese character on the touch screen based upon the selected “initial” and the selected “final.”