VR Headset Eye and Device Rotation Sensors Reduce Neck Strain

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Solution Overview

Problem

Current virtual reality devices require significant head and neck rotation, leading to user discomfort due to the need for extensive head movement, which burdens the user over time.

Innovation Solution

A virtual reality device equipped with a first sensor to detect the rotation amplitude of the device and a second sensor to detect the user's eye rotation amplitude, a processor generates a panoramic image and adjusts the display picture accordingly, allowing the user to rotate the device and eyes simultaneously to reduce head and neck strain.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the user rotates their head to view different parts of a panoramic image in a virtual reality device, then the user can see different directions in the panoramic image, but the user's head and neck become burdened and uncomfortable after long periods of use

Engineering Contradiction:

Improveviewing capabilityVSAvoidhead and neck strain

Core Design Contradiction:

Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical head rotation system with an optical/electronic system. Instead of requiring physical head movement to change viewing direction, the system uses sensors to detect eye rotation and automatically adjusts the displayed panoramic image accordingly, substituting mechanical action with electronic control

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system enables self-service by detecting the user's eye movement and automatically adjusting the display without requiring external input or conscious effort from the user. The device monitors eye rotation through sensors and autonomously changes the displayed view to match the user's natural eye movement

Inventive Principle:

Principle #25Self-service

2Device complexity

If the virtual reality device uses only a first sensor to detect device rotation, then the system structure is simpler, but the user still needs to rotate their head significantly to view the entire panoramic image

Engineering Contradiction:

Improvesensor systemVSAvoidhead rotation requirement

Core Design Contradiction:

Device complexityVSEase of operation

Solution Approach 1:

The patent merges the functionality of device rotation detection with eye rotation detection by combining data from both the first sensor (detecting device rotation) and the second sensor (detecting eye rotation). This combined approach allows the system to compensate for head movement and reduce the实际需要 head rotation, while maintaining a relatively simple dual-sensor structure

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS10444863B2Virtual reality devices and display picture generation methods

Publication Date: 2019.10.15 QUANTA COMPUTER INC

AI summary

A virtual reality device, including a first sensor, a second sensor, a processor, and a display screen, is provided. The first sensor senses a first rotation-amplitude corresponding to the virtual reality device, and outputs a first sensing signal corresponding to the first rotation-amplitude. The second sensor senses a second rotation-amplitude corresponding to the user's eyes, and outputs a second sensing signal corresponding to the second rotation-amplitude. The processor generates a panoramic image, and obtains an initial display picture. The display screen displays the initial display picture. The processor further outputs a first display picture according to the first sensing signal and the second sensing signal, and the display screen displays the first display picture.