Wireless Projection Resolution Control for Low-Latency Display

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Solution Overview

Problem

Current wireless projection technologies experience significant delays ranging from 100 ms to 2000 ms, which adversely affect user experience, particularly in applications requiring real-time interaction like gaming, due to inefficient management of network quality and image resolution.

Innovation Solution

A method that adjusts the target resolution of projected images based on real-time network status, reducing data transmission by lowering resolution when network quality is poor, and utilizing super-resolution on the projection device to enhance image quality.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If image data is transmitted at fixed high resolution, then projection image quality is improved, but projection delay increases significantly

Engineering Contradiction:
Improveprojection image qualityVSAvoidprojection delay
Core Design Contradiction:
Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent implements dynamic resolution adjustment where the terminal device changes the resolution of projected images in real-time based on network status. When network quality is good, higher resolution is used; when network quality deteriorates, resolution is reduced to maintain smooth projection and minimize delay, thus dynamically balancing image quality and projection delay

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent changes the resolution parameter of projected images according to network conditions. By adjusting this key parameter based on real-time network status monitoring, the system optimizes the balance between transmission data volume and image quality, reducing projection delay while maintaining acceptable visual quality

Inventive Principle:
Principle #35Parameter changes

2Loss of time

If network status is monitored and resolution is dynamically adjusted, then projection delay is reduced, but system complexity increases

Engineering Contradiction:
Improveprojection delayVSAvoidsystem complexity
Core Design Contradiction:
Loss of timeVSDevice complexity

Solution Approach 1:

The patent implements a feedback mechanism where the terminal device continuously monitors network status (such as signal strength, bandwidth availability) and uses this feedback to adjust the resolution of projected images. This closed-loop control system automatically adapts to changing network conditions, reducing projection delay without requiring complex manual intervention

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system performs self-adjustment of projection resolution based on autonomous network status monitoring. The terminal device independently determines appropriate resolution levels without external control, simplifying the overall system architecture while achieving dynamic optimization of projection performance

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS12626332B2Projection data processing method and apparatus
Publication Date: 2026.05.12 HUAWEI TECH CO LTD
  • US12626332B2 patent drawing
  • US12626332B2 patent drawing
  • US12626332B2 patent drawing

AI summary

Embodiments of this application disclose a projection data processing method, to reduce a delay in a wireless projection process. In the embodiments of this application, the method includes: A projection transmit end obtains network status information, and determines a target resolution of an image to be projected based on the network status information; and then determines a to-be-synthesized layer based on whether the image is in a full-screen scenario. Therefore, an amount of data to be sent during projection can be reduced, and a projection delay can be reduced. In addition, a projection receive end can perform super-resolution on the image, to avoid image quality damage caused by reducing the amount of data sent by the transmit end. This solution reduces the projection delay and ensures projection image quality to improve user experience.