Optical Finger Navigator Joystick Resolves Thickness Accuracy Trade-off
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Solution Overview
Problem
Traditional game joysticks have low accuracy and a bulky design due to protruding analog sticks, making them inconvenient to operate.
Innovation Solution
A game joystick using an optical finger navigator with a body, main circuit board, operation interfaces, and detective control units that capture fingerprint information to generate operation commands, replacing traditional analog sticks for improved accuracy and reduced size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional analog sticks are projected beyond the top face of the body, then the joystick can be operated mechanically, but the thickness and bulk of the joystick increase
Solution Approach 1:
The patent replaces the traditional mechanical analog stick system with an optical detection system. The detective control unit uses light-emitting components and photosensitive modules to detect finger movements on the operation interface, eliminating the need for protruding mechanical analog sticks while maintaining operation capability. This substitution directly resolves the contradiction by removing the mechanical projection that increases thickness.
Solution Approach 2:
The invention transitions from three-dimensional mechanical analog sticks protruding from the surface to a two-dimensional flat operation interface. The optical detection system detects finger movements on the planar operation interface without requiring vertical projection, thereby reducing the joystick's thickness while preserving operational functionality.
2Device complexity
If traditional analog sticks are used, then the joystick structure is simple, but the operation accuracy is low
Solution Approach 1:
The patent replaces the mechanical analog stick with an optical detection system comprising light-emitting components, photosensitive modules, and a detective control unit. This optical system provides higher measurement precision for detecting finger movements and determining operation directions, directly addressing the accuracy limitation of traditional mechanical analog sticks.
Solution Approach 2:
The invention uses optical imaging to create a digital representation of finger position and movement on the operation interface. The photosensitive modules capture light patterns that correspond to finger movements, converting physical movements into precise digital signals for accurate operation control, thereby enhancing measurement precision.
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
The optical finger navigator design enhances accuracy and reduces the joystick's thickness, resulting in a more compact and user-friendly gaming experience.
Implementation Method 1
The detective control unit emits light to the bottom of the operation interface and further captures fingerprint information through the operation interface under the action of the light
Data Source
AI summary
A game joystick adapted for being operated by optical finger navigator includes a body, a main circuit board assembled inside the body, at least one operation interface mounted in the top of the body and exposed through a top face of the body to be substantially flush with the top face of the body, and at least one detective control unit mounted on the main circuit board inside the body and electrically connected to the main circuit board. The operation interface is located over the detective control unit. The detective control unit emits light to the bottom of the operation interface and further captures fingerprint information through the operation interface under the action of the light while moving a finger on the operation interface. The fingerprint information is further processed and converted into operation commands by the detective control unit and then the operation commands are sent out.