Removable Tracking Device for Handheld Controller Precision
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Solution Overview
Problem
Existing input devices for computer systems, such as those used in virtual reality and touch-sensitive displays, often lack adequate location tracking, convenience, and provide inadequate feedback, making them cumbersome or uncomfortable for users.
Innovation Solution
A system comprising a head-mounted device and a handheld input device with a removable tracking device that enhances precision and includes expandable housing, visual markers, and haptic output to provide improved tracking and input capabilities, allowing for precise interaction with virtual content and real-world environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a handheld input device is used for controlling an electronic device, then the device can be operated, but the location tracking precision is inadequate
Solution Approach 1:
A separate tracking device is introduced as an intermediary component that couples to the handheld input device. This tracking device contains visual markers that are tracked by the head-mounted device's cameras, providing precise location tracking without requiring the handheld device itself to be complex. The tracking device acts as a mediator between the handheld controller and the tracking system.
2Measurement precision
If the tracking device has larger dimensions to improve tracking precision, then the tracking precision increases, but the device becomes cumbersome and uncomfortable
Solution Approach 1:
The system is segmented into separate functional components: the handheld input device for user interaction and the tracking device for precision tracking. The tracking device can be detached and replaced with different configurations (e.g., different sized visual markers) depending on the application, allowing optimization of tracking precision without permanently increasing the size of the handheld device itself.
3Measurement precision
If visual markers with larger dimensions are used on the tracking device, then the tracking precision is improved, but the device complexity increases
Solution Approach 1:
The tracking device is designed as a universal component that can couple to different types of handheld input devices. The visual markers are designed to be tracked by the head-mounted device's camera system, providing a standardized interface that works across different configurations. This universality reduces overall system complexity despite the presence of larger visual markers.
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 system provides enhanced precision and convenience by improving location tracking and feedback, enabling more intuitive and comfortable user interaction with virtual and mixed reality environments.
Implementation Method 1
Visual markers on the tracking device may include infrared light-emitting diodes, geometric surface features, or other optical tracking features.
Implementation Method 2
The tracking device may have a recess for receiving a shaft of the input device and may have magnets or other attachment structures for attaching the tracking device to the input device.
Data Source
AI summary
A system may include an electronic device such as a head-mounted device and a handheld input device for controlling the electronic device. A tracking device may be removably coupled to the handheld input device to increase the precision with which the head-mounted device tracks the handheld input device. The tracking device may have larger dimensions than the handheld input device and/or may have an expandable housing that expands and retracts. Visual markers on the tracking device may include infrared light-emitting diodes, geometric surface features, or other optical tracking features. The tracking device may serve as a secondary input device for the head-mounted device when the tracking device is decoupled from the input device. The tracking device may have a recess for receiving a shaft of the input device and may have magnets or other attachment structures for attaching the tracking device to the input device.