Proximity Detection Touch Panel Dynamic Threshold Adjustment
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Solution Overview
Problem
The existing proximity detection type touch panels require the user's hand to be very close to detect hover operations accurately, limiting operability due to a fixed small threshold value for proximity distance, which results in incorrect detection of hover operations when the hand is farther away.
Innovation Solution
An information processing apparatus that adjusts the detectable proximity distance based on the target object, determining the validity of input operations using a combination of proximity distance and target object characteristics, allowing for valid operations even at longer distances for larger targets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a fixed small threshold value is used for proximity distance, then detection precision is improved, but ease of operation deteriorates
Solution Approach 1:
The patent applies dynamics by making the threshold value changeable rather than fixed. The threshold is dynamically adjusted based on the size of the target object displayed on the screen. When the target object is large, the threshold is increased to allow rough operations from a distance; when the target object is small, the threshold is decreased to ensure precise detection. This resolves the contradiction by adapting the detection criteria to the operational context.
Solution Approach 2:
The patent changes the parameter of threshold value based on the size of the target object. By establishing a relationship between target object size and threshold value, the system transitions from a static parameter to a dynamic one that adapts to different operational scenarios. This allows the system to maintain high detection precision for small targets while enabling easy operation for large targets.
2Measurement precision
If a fixed small threshold value is used for proximity distance, then detection accuracy is improved, but operability deteriorates
Solution Approach 1:
The system dynamically adjusts the threshold value according to the target object size, enabling the proximity detection function to adapt to different operational requirements. This dynamic adjustment makes the system versatile enough to handle both precise operations on small targets and rough operations on large targets, thereby improving overall operability while maintaining detection accuracy.
Solution Approach 2:
By changing the threshold parameter based on target object characteristics, the system becomes adaptable to various operational contexts. The threshold is not a fixed value but varies according to the size of the target, allowing the system to maintain high detection accuracy across different scenarios while improving user operability.
Data Source
AI summary
There is provided an information processing apparatus including a determination section for determining whether or not an input operation is valid on the basis of a proximity distance and a target object, and a process execution section for executing a process according to the input operation when it is determined that the input operation is valid. The proximity distance is a distance between a proximity detection type operation unit and an operating body performing the input operation using the proximity detection type operation unit. The target object is a target of the input operation.