Wireless VR Device Blockage Prediction Encoding

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Solution Overview

Problem

Existing VR systems with millimeter waveband wireless communication face significant quality degradation and user experience issues due to temporary blockages of communication paths, leading to video quality deterioration and increased transmission delays, even with obstacle detection and beam forming techniques.

Innovation Solution

An information processing device and method that predicts blockage periods of communication paths based on obstacle movement, allowing for proactive control of wireless communication, encoding, and processing to mitigate these issues by switching communication paths and adjusting encoding methods.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If millimeter waveband wireless communication with beam forming is used to increase communication distance, then transmission rate is improved, but communication path blockage by obstacles causes video quality deterioration and transmission delay increase

Engineering Contradiction:
Improvetransmission rateVSAvoidvideo quality
Core Design Contradiction:
SpeedVSReliability

Solution Approach 1:

The system performs preliminary detection of obstacle positions using camera information and predicts future blockage of communication paths. Based on these predictions, the system proactively switches to alternative communication paths or adjusts encoding parameters before actual blockage occurs, preventing video quality deterioration and transmission delays rather than reacting after the problem arises.

Inventive Principle:
Principle #10Preliminary action

2Reliability

If obstacle detection and communication path selection are performed in real-time, then transmission error is suppressed, but temporary degradation in communication environment still occurs when blockage happens

Engineering Contradiction:
Improvetransmission error suppressionVSAvoidcommunication degradation period
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The system detects obstacle positions and predicts communication path blockage in advance using camera information and blockage prediction period information. By identifying potential blockages before they occur, the system can pre-select alternative communication paths or adjust encoding parameters proactively, eliminating the temporary degradation period that occurs with reactive real-time path selection.

Inventive Principle:
Principle #10Preliminary action

3Reliability

If communication path switching is performed reactively after blockage detection, then transmission reliability is improved, but video quality deterioration and transmission delay still occur during the blockage period

Engineering Contradiction:
Improvetransmission reliabilityVSAvoidvideo quality
Core Design Contradiction:
ReliabilityVSManufacturing precision

Solution Approach 1:

The system uses blockage prediction period information to identify future communication path blockages before they occur. Based on these predictions, the system proactively switches to alternative communication paths or adjusts encoding parameters in advance, preventing video quality deterioration and transmission delays rather than reacting after blockage occurs.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system continuously monitors communication environment using camera information and receives feedback on blockage prediction period information. This feedback loop enables the system to dynamically adjust communication paths and encoding parameters based on predicted obstacle positions, maintaining video quality and transmission reliability by adapting to changing conditions proactively.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS11563477B2Information processing device and method
Publication Date: 2023.01.24 SONY GROUP CORP
  • US11563477B2 patent drawing
  • US11563477B2 patent drawing
  • US11563477B2 patent drawing

AI summary

The present technology relates to an information processing device and method capable of suppressing lowering in the quality of user experience. An information processing device includes: a wireless communication unit that sends transmission information to another information processing device through wireless communication; and a control unit that controls at least one of the wireless communication performed by the wireless communication unit, encoding of the transmission information, or a processing process on the transmission information on the basis of blockage prediction period information indicating a prediction result on blockage of a communication path to the another information processing device. The present technology can be applied to a content playback system.