Automatic Cross-Device Task Handoff Using User Gaze Detection

Solution Overview

Problem

Existing cross-device task handoff technologies are inefficient and require manual operations, which can be cumbersome and inconvenient, especially when users are unable to perform manual actions.

Innovation Solution

A task handoff method utilizing gaze perception technology to seamlessly transfer tasks between devices by detecting user gaze, allowing tasks to be automatically handed off when the user switches their focus without requiring manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If manual operations are used for cross-device task handoff, then task handoff can be performed, but the operation process becomes cumbersome and inconvenient

Engineering Contradiction:

Improvetask handoff operationVSAvoidtask handoff time

Core Design Contradiction:

Ease of operationVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical operations with gaze-based detection. The system uses gaze perception technology to automatically detect when a user looks at a different device, triggering task handoff without requiring manual buttons, clicks, or gestures. This substitutes the mechanical interaction system with an optical detection system, resolving the contradiction by making task handoff both easier and faster.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs task handoff automatically based on gaze detection, without requiring user initiation or confirmation. The devices self-monitor gaze patterns and self-execute the handoff process when conditions are met, eliminating the need for manual intervention and significantly reducing operation time while improving ease of use.

Inventive Principle:

Principle #25Self-service

2Ease of operation

If manual operations are required for task handoff, then task transfer can be controlled, but user convenience deteriorates especially when manual actions are difficult

Engineering Contradiction:

Improvetask handoff operationVSAvoidtask handoff automation

Core Design Contradiction:

Ease of operationVSExtent of automation

Solution Approach 1:

The patent replaces manual mechanical operations with gaze-based detection. The system uses gaze perception technology to automatically detect when a user looks at a different device, triggering task handoff without requiring manual buttons, clicks, or gestures. This substitutes the mechanical interaction system with an optical detection system, resolving the contradiction by making task handoff both easier and faster.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The system performs task handoff automatically based on gaze detection, without requiring user initiation or confirmation. The devices self-monitor gaze patterns and self-execute the handoff process when conditions are met, eliminating the need for manual intervention and significantly reducing operation time while improving ease of use.

Inventive Principle:

Principle #25Self-service

Data Source

PatentEP4632535A1Task handoff method, apparatus, electronic device and storage medium

Publication Date: 2025.10.15 BEIJING XIAOMI MOBILE SOFTWARE CO LTD

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AI summary

A task handoff method includes: displaying a target task, where the target task is a task that is running in a foreground and can be handed off on a first device; and in response to detection that a device at which a target user is gazing is switched from the first device to a second device, handing off the target task from the first device to the second device, so as to display the target task on the second device; where the first device is associated with at least one third device, and the second device is any one of the at least one third device.