XR Haptic Actuation for Realistic Touch and Texture Rendering
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Solution Overview
Problem
Haptic devices currently lack the ability to provide detailed sensory information such as material, surface texture, form factor, and force approximation, leading to a disconnect between users and virtual environments, which hinders immersive experiences in metaverse sessions.
Innovation Solution
A system and method utilizing electromagnetic actuators, smart nanotech materials, and neural network models to simulate the sense of touch and feel of virtual objects, incorporating haptic floors and wearable devices to provide nuanced tactile feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If conventional haptic devices are used, then basic tactile feedback is provided, but detailed sensory information (material, surface texture, form factor, force approximation) is lost
Solution Approach 1:
The haptic feedback is segmented into multiple independent electromagnetic actuators distributed across the haptic surface, each capable of providing localized tactile feedback. This segmentation allows different regions to convey different sensory information simultaneously, preserving material, texture, and force information without requiring a single complex device
Solution Approach 2:
The patent transitions from traditional mechanical haptic devices to electromagnetic actuation, adding a new dimensional approach to haptic feedback. By using electromagnetic fields instead of mechanical linkages, the system can independently control multiple degrees of freedom and provide rich sensory information without proportional increases in mechanical complexity
2Adaptability or versatility
If haptic feedback provides basic tactile information, then device complexity remains low, but user immersion and connection to virtual environment deteriorates
Solution Approach 1:
The haptic feedback system dynamically adjusts the characteristics of electromagnetic actuators based on virtual object properties and user interactions. The system continuously adapts feedback parameters such as force magnitude, vibration frequency, and actuator activation patterns to match the virtual environment context, providing versatile user experiences through software-controlled adaptability rather than hardware reconfiguration
Solution Approach 2:
The patent utilizes parameter changes in electromagnetic actuation to convey different sensory information. By varying current magnitude, frequency, and phase across multiple actuators, the system can represent different material properties, surface textures, and force characteristics, achieving high adaptability through controlled parameter variation rather than physical transformation
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 user immersion by simulating texture, material properties, and weight of virtual objects, offering adaptable and realistic haptic experiences that synchronize with user interactions and environmental context.
Implementation Method 1
determine control information comprising Electromagnetic Force (EMF) information associated with the virtual object and physical attributes associated with the virtual object
Data Source
AI summary
A system and method for rendering touch and feel sensations in an XR session, is provided. The system acquires immersive content associated with an XR session that is active on the XR device. The immersive content includes a virtual object that is representative of a real-world object. The system further detects an interaction between the virtual object and the user of the XR device. The system further determines control information comprising Electromagnetic Force (EMF) information associated with the virtual object and physical attributes associated with the virtual object, based on the interaction. The system further determines a plurality of electric current values corresponding to the plurality of EM actuators, based on the control information. The system further controls actuation of the plurality of EM actuators based on the plurality of electric current values.