Controller Insert for Joystick Range Limitation
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Solution Overview
Problem
Users with mobility issues, such as finger joint mobility issues, face challenges in using handheld controllers with joysticks due to limited range of motion, leading to difficulties in controlling games, and existing accessible controllers can be expensive and impractical for widespread use.
Innovation Solution
An insert for a controller is designed to limit the range of motion of the joystick, allowing users to adapt the sensitivity and control by installing it between the joystick stem and the controller casing, using deformable or non-deformable materials that restrict the displacement, enabling more precise control for users with mobility issues.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the joystick is designed with a full range of motion to provide continuous electrical output, then the control precision for users with full mobility is improved, but the usability for users with limited thumb range of motion deteriorates
Solution Approach 1:
The solution segments the joystick system into two independent components: the insert component that limits range of motion and the base component that contains the sensing mechanism. This segmentation allows the insert to restrict displacement to a usable range while the base continues to provide continuous electrical output proportional to the limited displacement, resolving the contradiction between full range of motion and limited range usability.
Solution Approach 2:
The insert acts as an intermediary component between the user's thumb and the joystick base. It mediates the interaction by mechanically limiting the displacement range while still allowing the joystick to function, thereby adapting the full-range joystick for users with limited mobility without requiring a completely different controller design.
2Ease of operation
If dedicated accessible controllers are designed with limited range of motion for users with mobility issues, then the ease of operation is improved, but the device complexity and manufacturing cost increase
Solution Approach 1:
The insert component is designed to be universally compatible with standard joysticks and controller platforms. Rather than creating dedicated accessible controllers, the insert can be added to any standard controller, making it a multi-functional solution that adapts existing devices for users with mobility issues without requiring separate controller designs.
Solution Approach 2:
The system allows dynamic adaptation of the joystick range of motion by changing or replacing the insert component. Users can adjust the level of restriction by selecting different inserts, enabling the same base controller to serve multiple user needs and reducing the need for multiple specialized controller designs.
3Ease of operation
If the insert restricts the range of motion significantly, then the usability for users with limited mobility is improved, but the control precision for users with full mobility deteriorates
Solution Approach 1:
The insert changes the physical parameter of displacement range while maintaining the proportional relationship between displacement and electrical output. By altering the range parameter rather than the sensitivity parameter, the system preserves control precision for users with full mobility who may remove the insert, while providing enhanced usability for users with limited mobility who keep the insert in place.
Data Source
AI summary
A controller, an insert for a controller, an entertainment system, a method for receiving data from a controller, and a computer program. The controller comprises a joystick and a casing at least partially surrounding the joystick. The insert comprises a first surface and a second surface, wherein at least one of: the first surface has shape that is complementary with a shape of at least part of a stem of the joystick, and the second surface has a shape which is complementary with a shape of at least part of the casing. The insert is configured, when installed between the stem and the casing, to limit a range of motion of the stem.