Input Device Pressing Amount Determination Using Regional Thresholds
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Solution Overview
Problem
The diversification of manipulation panels and input methods in electronic devices leads to a need for improved manipulation performance, as users may inadvertently perform erroneous inputs due to variations in device pose and holding states, which existing technologies fail to address effectively.
Innovation Solution
An input device with a pressing-amount determination unit that uses multiple thresholds for different regions of the manipulation panel, combined with a motion detector, pose detector, and determination threshold controller to adjust thresholds based on the device's pose and holding state, preventing erroneous inputs by accurately determining pressing amounts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single determination threshold is used for the manipulation panel, then the device structure is simple, but erroneous inputs occur due to variations in device pose and holding states
Solution Approach 1:
The manipulation panel is divided into multiple regions (center region and peripheral regions), and each region is assigned a different determination threshold. This segmentation allows the system to account for variations in pressing force distribution across different areas of the panel, improving input accuracy without requiring complex pose detection mechanisms.
Solution Approach 2:
Different determination thresholds are applied to different regions of the manipulation panel based on local characteristics. The center region uses one threshold while peripheral regions use different thresholds, reflecting the local quality principle where each part of the system is optimized for its specific function and position.
2Reliability
If multiple determination thresholds are used for different regions of the manipulation panel, then input accuracy is improved, but the device complexity increases
Solution Approach 1:
The determination threshold is made dynamic by adjusting it according to the detected pose of the apparatus. The pose detector identifies different holding states (e.g., one-handed vs. two-handed holding), and the controller selectively applies appropriate thresholds from a set of predetermined thresholds. This dynamic adjustment maintains high input accuracy while avoiding the need for complex manual configuration.
Solution Approach 2:
The system automatically selects and applies the appropriate determination threshold based on the detected pose without requiring user intervention or complex external configuration. The pose detector and controller work together to self-adjust the threshold settings, making the system adaptive to different usage scenarios autonomously.
3Reliability
If the determination threshold is fixed, then the control logic is simple, but erroneous inputs occur when the same force is applied with varying device poses
Solution Approach 1:
The system implements a feedback mechanism where the pose detector continuously monitors the device orientation and holding state, and this information is fed back to the controller to adjust the determination threshold accordingly. This closed-loop feedback ensures that the threshold always matches the current usage context, preventing erroneous inputs while maintaining relatively simple control logic through automated adaptation.
Data Source
AI summary
An input device is provided to improve manipulation performance of a manipulation panel of an electronic apparatus. The input device includes a manipulation panel and a pressing-amount determination unit. The pressing-amount determination unit determines a pressing amount due to an input manipulation performed on the manipulation panel, using a plurality of different determination thresholds corresponding to respective regions of the manipulation panel.