Multi-Point Input Detection for Touchscreen Operability
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Solution Overview
Problem
Existing user interfaces lack improved operability as they are limited by the ability to handle simultaneous input of multiple coordinate positions, which can lead to decreased accuracy and efficiency in interacting with information processing devices.
Innovation Solution
An information processing apparatus and method that includes a display controller and a detection unit, allowing for the performance of predetermined operations on displayed objects based on inputs received at both displayed and non-displayed positions, enhancing user interaction by enabling accurate selection and manipulation of objects with multiple fingers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multi-pointing devices are used to simultaneously input multiple coordinate positions, then the quantity of input positions is improved, but the measurement precision of each input position deteriorates
Solution Approach 1:
The input operation is segmented into two distinct phases: a selection phase where a first position is input to identify a target object, and an operation phase where a second position is input to execute the operation. This segmentation allows the system to process multi-point input by separating the selection function from the operation function, thereby maintaining precision for each input position while enabling multiple coordinate positions to be utilized simultaneously.
2Adaptability or versatility
If multiple objects are displayed on the user interface, then the versatility of the interface is improved, but the ease of operation deteriorates due to difficulty in selecting specific objects
Solution Approach 1:
The first position input acts as an intermediary mechanism between the user and the multiple displayed objects. By requiring a two-step process where the first position selects a target object and the second position executes the operation, the system provides a clear mediation layer that simplifies object selection even when many objects are displayed. This intermediary selection step resolves the ambiguity that would otherwise exist when multiple objects are present.
Data Source
AI summary
An information processing apparatus including: a display controller that controls a user interface to display a first object; and a detection unit that detects an input received at the user interface, wherein the display controller performs a predetermined operation corresponding to the displayed first object based on a first input detected at a first position at which the first object is displayed and a second input detected at a second position in which the object is not displayed.