Pointing Device UWB Magnetic Locators Virtual Object Selection
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Solution Overview
Problem
Current methods for capturing user actions in virtual spaces using sensors are inaccurate and inconvenient, especially when interacting with multiple virtual objects, leading to reduced immersion and precision in 3D virtual environments.
Innovation Solution
A pointing device with a first and second locator, utilizing ultra-wideband (UWB) technology, determines its position in a virtual space to specify virtual objects by calculating coordinates based on transmission delays, allowing precise pointing and switching between pointing and control modes for interaction.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sensors are used to capture user actions in virtual space, then user actions can be detected, but the accuracy is low and the use is very inconvenient
Solution Approach 1:
The patent replaces traditional mechanical sensors with a magnetic field-based detection system. A magnet is attached to the pointing device, and a magnetic sensor detects the magnetic field changes to determine the pointing direction. This substitution eliminates the need for complex sensor systems while improving both accuracy and convenience.
Solution Approach 2:
The patent introduces a magnet as an intermediary element between the pointing device and the detection system. The magnet creates a detectable magnetic field that serves as a mediator, allowing the system to accurately track the pointing device's position and orientation without requiring complex sensors in the device itself.
2Adaptability or versatility
If sensors are used for capturing user actions, then interaction with virtual objects is possible, but it is difficult to choose one virtual object for interactive operation when there are many virtual objects
Solution Approach 1:
The patent replaces imprecise sensor-based detection with magnetic field detection to achieve precise pointing direction determination. The magnetic sensor accurately tracks the magnet's position and orientation, enabling precise selection of specific virtual objects even when multiple objects are present in the virtual space.
3Ease of operation
If hovering operation is used, then overall operation on smart apparatus can be achieved, but it may not precisely point to a certain link or application in the screen from a great distance
Solution Approach 1:
The patent introduces a magnet as an intermediary that creates a detectable magnetic field signature. This allows the magnetic sensor to precisely determine the pointing device's orientation and position from a distance, enabling precise pointing to specific links or applications on the screen while maintaining hovering operation capabilities.
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
Enhances precision and immersion in virtual environments by enabling accurate selection and interaction with virtual objects from a distance, improving user experience in 3D virtual spaces.
Implementation Method 1
The locating device may include a ultra wideband (UWB) receiver or a UWB chip, wherein both of the first locator and the second locator may include a UWB transmitter
Implementation Method 2
the moving direction of SpenTM may be determined through magnetic induction
Data Source
AI summary
A method for specifying an object, includes: determining whether a pointing device is in a pointing mode or a control mode; determining a first position of a first locator and a second position of a second locator in the pointing device in a virtual space, when the pointing device is in the pointing mode; determining a pointing of the pointing device based on the first position of the first locator and the second position of the second locator; and determining a specified virtual object based on the pointing of the pointing device.