Wearable Gaze Tracking With External Device Handover
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Solution Overview
Problem
Existing wearable devices struggle to maintain continuous tracking and communication with external objects that move out of the user's field of view, leading to disruptions in augmented reality experiences.
Innovation Solution
A wearable device equipped with sensors, a camera, and communication circuitry that tracks user gaze and object motion, establishes communication links with external devices, and continues information sharing by transitioning to alternative devices when the object moves out of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wearable device relies solely on the user's field of view for tracking external objects, then the device complexity is reduced, but the tracking continuity is broken when objects move out of view
Solution Approach 1:
The patent introduces external electronic devices as intermediaries to extend the wearable device's tracking capability. When an external object moves out of the user's field of view, the system establishes communication links with external devices that continue tracking the object, thereby maintaining tracking continuity without requiring the wearable device to have omnidirectional sensors.
Solution Approach 2:
The system transitions from a single-device tracking approach to a multi-device distributed tracking architecture. By leveraging external electronic devices in the environment, the system expands the effective tracking space beyond the user's field of view, enabling continuous tracking of objects moving in three-dimensional space.
2Reliability
If the wearable device establishes communication links with multiple external devices to maintain tracking, then the tracking reliability is improved, but the communication management complexity increases
Solution Approach 1:
The system continuously monitors the positions of external objects and the user's gaze direction to dynamically manage communication links with external devices. When an object re-enters the user's field of view or when gaze direction changes, the system adjusts which external devices remain connected, optimizing information availability while reducing unnecessary communication overhead.
Solution Approach 2:
The communication links with external devices are not static but dynamically adjusted based on real-time conditions. The system establishes, maintains, or terminates connections with external devices according to the current tracking needs, object positions, and user attention, creating a flexible communication management strategy.
Data Source
AI summary
A wearable device, can display a first visual object corresponding to an external object on a display. The wearable device can: identify, based on the direction of a gaze toward the first visual object, indicated by sensor data of a sensor, a motion of the external object using a camera; establish a communication link with at least one external electronic device capable of tracking the external object identified based on the motion; and acquire information about the external object from the at least one external electronic device through the communication link based on identifying that the display of the first visual object is stopped after the communication link is established, and display, on the display based on the acquired information, a second visual object related to the external object.