Multi-key Terminal Character Input via Adjacent Key Distance Detection
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Solution Overview
Problem
Current character input methods in multi-key terminals are inefficient, leading to decreased input speed and lack of guidance for users, particularly in transitioning between input modes and selecting characters from a limited keypad.
Innovation Solution
A method and apparatus that utilize multi-keys on keypads, where pressing an additional key while the multi-key is pressed determines the character input based on the distance between the multi-keys, allowing for efficient character input by displaying distinct areas on a touch keypad or mechanical keypad, enabling users to input specific characters by selecting the appropriate area or key press distance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional character input methods are used in multi-key terminals, then all languages can be supported, but character input speed decreases
Solution Approach 1:
The invention segments the character input process into two distinct phases: first pressing a multi-key to select a character group, then pressing another key to select the specific character from that group. This segmentation allows the system to support multiple languages while maintaining faster input speed by reducing the number of key presses needed compared to traditional methods.
2Productivity
If the same key is pressed multiple times to input one character in multi-key terminals, then character input can be achieved, but input speed decreases
Solution Approach 1:
The invention implements preliminary action by having the user first press a multi-key to pre-select a character group before finalizing the character selection. This preliminary selection reduces the total time required for character input by organizing characters into accessible groups, thereby reducing the number of sequential key presses needed and minimizing time loss.
3Ease of operation
If conventional input mode transition methods are used, then different input modes can be switched, but user guidance is lacking and operation becomes complex
Solution Approach 1:
The invention implements feedback by providing visual display of the selected character group after the first key press and showing guidance information that helps users understand which key to press next. This feedback mechanism simplifies the operation by making the input process transparent and guiding users through the two-phase input method without requiring them to remember complex mode transition sequences.
Data Source
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Figure 3A~3C
AI summary
A method and apparatus for inputting a character in a terminal are provided, in which a key input portion has at least one multi-key for use in inputting a plurality of characters, and when an other key is pressed while one of the at least one multi-key is pressed, a controller determines that one of characters following a first character among a plurality of characters mapped to the pressed multi-key has been input according to the distance between the pressed multi-key and the pressed other key.