CGR Rendering Task Offloading Across Distributed Compute Nodes

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Solution Overview

Problem

Delivering a great computer-generated reality (CGR) experience requires significant hardware and software resources, which often operate within limited constraints, leading to issues like jitter and latency, making it difficult for users to interact seamlessly within immersive environments.

Innovation Solution

A display device dynamically discovers and offloads tasks to available computing devices, considering factors such as compute resources, energy budgets, network bandwidth, and security to enhance the user experience by leveraging nearby tablets, laptops, and cloud-based services for additional processing power.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If more hardware and software resources are allocated to deliver high-quality CGR experience, then user experience quality improves, but system complexity and resource constraints worsen

Engineering Contradiction:
ImproveCGR experience qualityVSAvoidsystem complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent segments the CGR processing workload into multiple independent tasks that can be distributed across different computing devices. The display device divides rendering tasks, physics calculations, and other computationally intensive operations into separate units that can be executed by different nodes in the network, thereby improving overall system reliability without requiring a single complex device to handle everything

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent creates a universal computing architecture where multiple devices (display device, compute devices, cloud services) can perform multiple functions. Each device in the network can serve as both a consumer and provider of computing resources, allowing the system to adapt to different scenarios and reducing the need for specialized hardware for each function

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Speed

If computing tasks are processed locally on the display device, then response time is faster, but available processing power is limited

Engineering Contradiction:
Improveprocessing speedVSAvoidprocessing power
Core Design Contradiction:
SpeedVSPower

Solution Approach 1:

The patent transitions from a single-device processing model to a multi-dimensional distributed computing architecture. By adding the network dimension, the system can leverage computing power from multiple devices simultaneously while maintaining fast response times through intelligent task routing and local execution of time-critical operations

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The patent introduces a task distribution mechanism that acts as an intermediary between the display device and remote compute devices. This intermediary intelligently routes tasks based on their urgency and resource requirements, ensuring that time-critical tasks are processed locally while less urgent tasks are offloaded to remote devices with greater processing power

Inventive Principle:
Principle #24Intermediary (Mediator)

3Power

If tasks are offloaded to remote compute devices, then processing power increases, but network bandwidth requirements increase

Engineering Contradiction:
Improveprocessing powerVSAvoidnetwork bandwidth
Core Design Contradiction:
PowerVSQuantity of substance

Solution Approach 1:

The patent implements partial offloading of tasks rather than complete remote processing. By keeping critical path operations and time-sensitive tasks on the display device while offloading only non-critical computationally intensive operations to remote devices, the system gains access to additional processing power without requiring excessive network bandwidth for data transmission

Inventive Principle:
Principle #16Partial or excessive action

Data Source

PatentUS20250342642A1Distributed processing in computer generated reality system
Publication Date: 2025.11.06 APPLE INC
  • US20250342642A1 patent drawing
  • US20250342642A1 patent drawing
  • US20250342642A1 patent drawing

AI summary

Techniques are disclosed relating to display devices. In some embodiments, a display device includes a display system configured to display three-dimensional content to a user. The display device is configured to discover, via a network interface, one or more compute nodes operable to facilitate rendering the three-dimensional content and receive information identifying abilities of the one or more compute nodes to facilitate the rendering. Based on the received information, the display device evaluates a set of tasks to identify one or more of the tasks to offload to the one or more compute nodes for facilitating the rendering and distributes, via the network interface, the identified one or more tasks to the one or more compute nodes for processing by the one or more compute nodes.