Adaptive VR Content Transmission for Latency Reduction

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Solution Overview

Problem

Virtual reality systems face latency issues and lack user-friendliness due to large data volumes and complex computations, leading to a mismatch between virtual reality content and user needs.

Innovation Solution

A virtual reality system with a head-mounted display device and a host that adaptively control the transmission of virtual reality content based on sensing signals, such as user movements or physiological states, to adjust parameters like frame rate, resolution, and vector complexity, reducing latency and enhancing user experience.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a large volume of data is transmitted or complicated computation is performed to achieve high-quality virtual reality content, then the quality of virtual reality content is improved, but latency increases and immediacy requirement cannot be achieved

Engineering Contradiction:
Improvequality of virtual reality contentVSAvoidlatency
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The system dynamically adjusts the quality parameters of virtual reality content based on real-time sensing signals. The host device modifies resolution, frame rate, and other quality metrics adaptively according to user movement state, allowing the system to optimize between quality and latency continuously rather than using fixed parameters

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes key parameters of virtual reality content transmission including resolution, frame rate, and data compression level based on sensing feedback. When user movement is detected, the system adjusts these parameters to reduce data volume and computation complexity, thereby reducing latency while maintaining acceptable quality

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If the virtual reality content transmission is optimized for high quality, then the content quality is improved, but the content may not match the user's instant needs reducing user friendliness

Engineering Contradiction:
Improvevirtual reality content qualityVSAvoiduser friendliness
Core Design Contradiction:
Manufacturing precisionVSEase of operation

Solution Approach 1:

The system implements a feedback loop where sensing signals from the user's head movements and physiological state are continuously monitored and fed back to the host device. This feedback enables the system to automatically adjust content transmission parameters to match the user's instant needs, making the system more responsive and user-friendly

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The virtual reality system performs self-adjustment of content quality parameters based on sensing data without requiring manual user intervention. The system autonomously determines the appropriate level of content detail and transmission rate based on user state, providing a more intuitive and user-friendly experience

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS10657720B2Virtual reality system having adaptive controlling function and controlling method thereof
Publication Date: 2020.05.19 ACER INC
  • US10657720B2 patent drawing
  • US10657720B2 patent drawing
  • US10657720B2 patent drawing

AI summary

A virtual reality system having adaptive controlling function and a controlling method thereof. The controlling method of a virtual reality system includes the following steps: A sensing signal is obtained by a head-mounted display device. A procedure of transmitting a virtual reality content to the head-mounted display device is adaptively controlled by a host according to the sensing signal.