Dynamic Input Area Sizing for PIN Entry Accuracy
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Solution Overview
Problem
Existing information processing systems face challenges in preventing erroneous inputs when input targets are not clearly identifiable on the screen, leading to difficulties in maintaining user focus and accuracy.
Innovation Solution
The system employs a display and operation mechanism where input areas corresponding to targets are dynamically adjusted in size and arrangement, making the current input target easier to select while obscuring its identity on the screen, and reducing adjacent input areas to prevent accidental selections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If input targets are displayed clearly on the screen, then user can identify the current input target, but erroneous inputs increase due to visible target positions
Solution Approach 1:
The patent applies local quality by making the input area visually distinct from other areas through enlargement, creating a localized visual cue that guides user input without revealing the target identity. The enlarged input area has different visual properties (size) compared to other areas, providing directional guidance while maintaining secrecy of the actual target position.
Solution Approach 2:
The patent introduces an intermediary visual element (the enlarged input area indicator) that mediates between the user and the actual input target. This intermediary provides directional information without directly revealing the target, acting as a buffer that guides input while preventing target identification.
2Device complexity
If all input areas are displayed with equal size, then screen layout is simple, but user cannot easily identify which area to input
Solution Approach 1:
The patent applies dynamics by dynamically changing the visual size of the input area based on the current input state. The input area is enlarged when it is the active input target, creating a dynamic visual feedback system that guides users to the correct input area without requiring complex static display designs.
3Reliability
If adjacent input areas are large, then easy to select by mistake, but reducing them makes correct input area harder to reach
Solution Approach 1:
The patent applies local quality by creating a localized enlargement effect specifically at the input area, while keeping adjacent areas at normal size. This localized visual enhancement provides clear directional guidance to the input area without increasing the physical size of adjacent areas, thus preventing accidental selections while maintaining accessibility.
Data Source
AI summary
A non-limiting example game system that functions as a non-limiting example information processing system includes a game apparatus, and an input device and a television are connected to this game apparatus. When inputting a personal identification number (Pin) in an input screen displayed on the television using an analog stick in a state not showing input contents, sizes of input areas that are set corresponding to respective directions of the analog stick are changed according to whether a numeral of a correct answer is an odd number or an even number. When the numeral of the correct answer is an odd number, the input areas to which the odd numbers are assigned are made large, and when the numeral of the correct answer is an even number, the input areas to which the even numbers are assigned are made large.