Head Mounted Display Bypassing Router for Reduced Latency

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Solution Overview

Problem

Head-mounted systems for gaming experience latency due to multiple network hops, which slow down game data transmission and cause delays in graphics rendering.

Innovation Solution

Bypassing the router between the head-mounted display and the network to directly stream media data from a game cloud system, reducing the number of hops and latency by processing and decoding interactive media directly on the head-mounted display.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If media data is streamed through a router to a head mounted display, then network connectivity and data routing are established, but the number of hops increases causing latency and slowing game data transmission

Engineering Contradiction:
Improvenetwork connectivityVSAvoidlatency
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent extracts the router from the data transmission path between the head mounted display and the game cloud system. By establishing a direct peer-to-peer connection, the router is removed from the signal path, eliminating the additional hop and associated latency while maintaining network connectivity through alternative direct networking protocols

Inventive Principle:
Principle #2Taking out (Extraction)

2Ease of operation

If a router is used to route game data to the head mounted display, then data routing and network management are provided, but the number of hops increases causing delays in graphics rendering

Engineering Contradiction:
Improvedata routingVSAvoidgraphics rendering speed
Core Design Contradiction:
Ease of operationVSProductivity

Solution Approach 1:

The patent introduces a peer-to-peer communication protocol as an intermediary mechanism that enables direct data transmission between the game cloud system and head mounted display without traditional router mediation. This alternative mediator maintains the necessary data routing functionality while eliminating the performance penalty of router-based hops

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If multiple network devices are placed between the head mounted display and the network, then network infrastructure and data forwarding are established, but the number of hops increases reducing transmission speed

Engineering Contradiction:
Improvenetwork infrastructureVSAvoiddata transmission speed
Core Design Contradiction:
ReliabilityVSSpeed

Solution Approach 1:

The patent segments the network communication into direct peer-to-peer channels, dividing the traditional multi-hop router-based path into a single direct connection. This segmentation eliminates intermediate network devices from the critical data path while maintaining robust network infrastructure through redundant connection protocols

Inventive Principle:
Principle #1Segmentation

Data Source

PatentEP4142254B1Systems and methods for reducing hops associated with a head mounted system
Publication Date: 2024.04.24 SONY INTERACTIVE ENTERTAINMENT LLC
  • EP4142254B1 patent drawingFigure 1A
  • EP4142254B1 patent drawingFigure 1B
  • EP4142254B1 patent drawingFigure 1C

AI summary

Systems and methods for reducing hops associated with a head mounted display are described. The head mounted display includes a communications circuit for receiving and transmitting interactive media associated with a game program via a network. The interactive media is processed by the game cloud system and streamed directly to the communications circuit of the head mounted display. The head mounted display further includes a user input circuit for receiving an action from a user to generate an input, which includes position and motion detected by the user input circuit. The head mounted display includes a game processing circuit for decoding the interactive media received from the network. The game processing circuit drives a portion of interactivity associated with the game program. The portion of interactivity is generated based on the input.