Gaze-Directed Cross-Device Focus Switching Without Manual Reconnection
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Solution Overview
Problem
Users face complex operations when switching the focus of an input device between multiple electronic devices, leading to a poor user experience.
Innovation Solution
A cross-device focus switching method and system that allows the focus of an input device to be seamlessly transferred between electronic devices by detecting the user's gaze and sending indication information to switch the input focus based on the user's line of sight, reducing manual intervention.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the user manually disconnects the connection relationship between one electronic device and the input device and establishes a connection with another electronic device, then the focus switching between devices is achieved, but the operations become complex and user experience deteriorates
Solution Approach 1:
The system automatically detects user gaze direction and initiates focus switching without requiring manual disconnection or connection establishment. The electronic devices self-manage the connection state based on detected user intent, eliminating complex manual operations.
Solution Approach 2:
The patent replaces manual mechanical operations (pressing buttons, disconnecting/connecting cables) with optical detection (gaze tracking). The system uses camera-based gaze detection to automatically trigger focus switching, substituting physical manual control with optical sensing and automated processing.
2Ease of operation
If the user manually switches the connection switching button on the input device to use another electronic device, then device switching is achieved, but the operations remain complex and user experience is poor
Solution Approach 1:
The system continuously monitors user gaze direction in advance, detecting intent to switch focus before the user actually needs to switch. When the gaze detects the target electronic device, the system proactively prepares for and executes the focus switch, eliminating the need for manual button pressing and reducing switching time.
Solution Approach 2:
The input device and electronic devices automatically manage focus switching based on detected gaze direction. The system self-services the switching operation by detecting user intent and executing the focus change without requiring manual intervention, thereby reducing both operational complexity and time loss.
3Ease of operation
If the system detects user gaze and automatically switches focus, then ease of operation is improved, but power consumption increases due to continuous detection
Solution Approach 1:
Instead of continuous gaze detection, the system uses periodic or event-triggered detection. The gaze detection is activated only when switching conditions are met (e.g., when multiple devices are connected, when the user looks away from the current device for a threshold period), reducing power consumption while maintaining automatic switching capability.
Solution Approach 2:
The system changes the detection parameter from continuous to conditional/periodic based on operational context. Gaze detection intensity and frequency are adjusted according to the current state (e.g., active vs. standby, number of connected devices), optimizing the balance between user experience and power consumption.
Data Source
AI summary
Embodiments of this application provide a cross-device focus switching method, a device, and a system. The method is applied to a system including two devices and an input device. The input device is connected to one of the devices, and the two devices are connected to a same account and/or the same account is logged in to the two devices. The method includes: When a focus of the input device is on the device connected to the input device, a user gazes at the other device, and the other device displays an input box, the device sends indication information to the other device; and after receiving the indication information, the other device displays the focus of the input device in the input box of the other device or outputs prompt information.