Display Processor Stroke Sorting for Handwriting Input
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Solution Overview
Problem
Current electronic devices with touch screen displays struggle to efficiently assist users in inputting character strings through handwriting, as they often require significant user effort and do not effectively utilize the history of inputted character strings for predictive suggestions.
Innovation Solution
An electronic apparatus that stores handwritten strokes as sequential information, allowing for the display of candidate character strings based on input strokes, sorted by similarity and workload, to assist users in completing character input with reduced effort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If candidate character strings are displayed in order of similarity, then matching accuracy is improved, but user effort increases for complex characters
Solution Approach 1:
The patent changes the sorting parameter from similarity alone to a composite parameter that includes both similarity and stroke count. This allows the system to balance matching accuracy with user effort by prioritizing simpler characters (fewer strokes) among those with similar match scores, thereby reducing the effort required to find and select the correct character.
Solution Approach 2:
The patent dynamically adjusts the display order based on multiple factors including similarity degree and stroke count. Rather than using a static sorting method, the system evaluates multiple parameters and adjusts the presentation order to optimize both accuracy and ease of use, making the interface adaptive to different input scenarios.
2Quantity of substance
If all candidate character strings are displayed, then completeness is improved, but information overload increases
Solution Approach 1:
The patent applies parameter-based filtering and sorting to manage the display of candidate character strings. By using similarity degree as a primary filter and stroke count as a secondary sorting criterion, the system presents a manageable subset of the most relevant candidates, avoiding information overload while maintaining completeness of useful options.
Solution Approach 2:
The patent applies different quality criteria to different positions in the candidate list. High-similarity candidates are prioritized, and among those, candidates with fewer strokes are displayed first. This local differentiation in presentation quality helps users quickly identify the most likely intended character without being overwhelmed by all possible candidates.
3Productivity
If predictive input assistance is provided, then input speed is improved, but system complexity increases
Solution Approach 1:
The patent implements a self-service predictive input system that automatically analyzes the user's handwriting strokes and provides candidate character suggestions without requiring manual intervention. The system retrieves stroke information, calculates similarity degrees, and generates candidate lists automatically, thereby improving input speed while keeping the user interface simple.
Solution Approach 2:
The patent performs preliminary processing of handwriting strokes to generate predictive candidate character strings before the user completes the full input. By pre-calculating similarity degrees and preparing candidate lists based on partial stroke information, the system provides timely suggestions that speed up input without requiring complex real-time processing during the actual character selection phase.
Data Source
AI summary
According to one embodiment, an electronic apparatus includes a display processor. The display processor is configured to display one or more first strokes on a screen. The display processor is configured to display a plurality of candidates each indicative of one or more handwritten characters in a handwritten document, the plurality of candidates retrieved from the handwritten document by using the one or more first strokes, and is configured to arrange the plurality of candidates in an order determined by using number of strokes of each of the plurality of candidates and to display the plurality of arranged candidates.