Controller Finger Detection Using Multi-Position Electrostatic Sensors
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Solution Overview
Problem
The detection of finger bending and extending states in controller apparatuses for video game consoles is challenging due to varying hand sizes and improper fitting, leading to inconsistent sensor readings.
Innovation Solution
A controller apparatus with first sensors arranged on the grip unit to detect finger contact and second sensors on buttons to detect spatial displacement, allowing for accurate detection of finger positions and movements, regardless of hand size, using electrostatic sensors and sensor circuits to output corresponding signals.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a single type of sensor is used to detect finger state, then the device complexity is low, but the measurement precision of finger bending and extending states deteriorates due to varying hand sizes and improper fitting
Solution Approach 1:
The sensor system is segmented into multiple types: first sensors arranged on the controller body to detect finger contact positions, and second sensors arranged on buttons to detect button press states. This segmentation allows each sensor type to specialize in detecting specific aspects of finger state, improving overall measurement precision while managing complexity through functional division
Solution Approach 2:
The patent adds spatial dimension to sensor arrangement by placing sensors at multiple positions (on controller body and on buttons) and detecting displacement in spatial position. This multi-dimensional sensor layout captures finger state from different spatial perspectives, enabling accurate detection regardless of hand size variations
2Adaptability or versatility
If sensors are arranged to accommodate all hand sizes, then the adaptability improves, but the device complexity increases due to multiple sensor types and positions
Solution Approach 1:
The controller apparatus is designed with universal adaptability through strategic sensor placement. The first sensors on the controller body detect finger contact across different hand sizes, while second sensors on buttons detect press states. This multi-functional sensor system serves multiple detection purposes (contact position, press state, spatial displacement) within a single unified device structure
Solution Approach 2:
The system detects changes in spatial position parameters of fingers relative to sensors. By monitoring displacement in spatial position rather than relying on fixed geometric relationships, the system adapts to varying hand sizes through parameter-based detection that scales with different user anatomies
3Measurement precision
If multiple sensors are used to detect finger positions accurately, then the measurement precision improves, but the device complexity and manufacturing cost increase
Solution Approach 1:
The manufacturing process is segmented into standard化的 sensor placement procedures. First sensors are arranged at predetermined positions on the controller body, and second sensors are arranged on buttons. This segmentation into modular assembly steps simplifies manufacturing despite the presence of multiple sensors
Solution Approach 2:
The patent detects finger position through changes in spatial displacement parameters rather than requiring complex absolute positioning systems. This parameter-based approach allows for simpler sensor implementation that measures relative movement rather than absolute coordinates, reducing manufacturing complexity
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables reliable detection of finger bending and extending states, ensuring accurate operation and user input recognition, even with varying hand sizes and proper fitting, by using a combination of sensors to monitor finger positions and movements.
Implementation Method 1
the first sensors configured to detect displacement in spatial position between the plurality of fingers of the user and the first sensors, buttons that are arranged at positions where fingertips of the user reach and that is operated by corresponding fingers, and a plurality of second sensors arranged between the first sensors and the buttons
Data Source
AI summary
Provided is a controller apparatus mounted on a hand of a user, the controller apparatus including a controller body, first sensors arranged at positions on the controller body where a plurality of fingers of the user comes into contact when the user grasps the controller body, the first sensors configured to detect displacement in spatial position between the plurality of fingers of the user and the first sensors; buttons that are arranged at positions where fingertips of the user reach and that is operated by corresponding fingers, and a plurality of second sensors arranged between the first sensors and the buttons and on surfaces of the buttons, the second sensors configured to detect displacement in spatial position between the plurality of fingers of the user and the second sensors.