Head-Wearable Touch-Gaze Feedback for Accurate Intent Validation

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Solution Overview

Problem

Existing wearable devices struggle to accurately provide feedback on touch inputs due to the lack of integration with gaze tracking, leading to potential misinterpretation and inefficiency in user interactions.

Innovation Solution

A wearable device equipped with a touch sensor and camera system that identifies touch inputs on one surface and gaze positions on another, providing feedback only when the gaze position is within a specified distance from the touch input, enhancing accuracy and user interaction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If feedback is provided for all touch inputs, then user interaction responsiveness is improved, but interaction accuracy deteriorates due to potential misinterpretation of user intent

Engineering Contradiction:

Improveinteraction responsivenessVSAvoiduser intent accuracy

Core Design Contradiction:

ProductivityVSMeasurement precision

Solution Approach 1:

The system provides feedback for touch inputs only when gaze position is within a specified distance from the touch position, creating conditional feedback that improves accuracy while maintaining responsiveness. The processor determines whether to provide feedback by comparing the distance between touch position and gaze position against a threshold value.

Inventive Principle:

Principle #23Feedback

2Measurement precision

If gaze tracking is integrated with touch input recognition, then interaction accuracy is improved, but device complexity increases

Engineering Contradiction:

Improveinteraction accuracyVSAvoidsystem complexity

Core Design Contradiction:

Measurement precisionVSDevice complexity

Solution Approach 1:

The patent combines touch sensor data and camera-based gaze tracking data into a unified interaction recognition system. The processor integrates both input modalities by comparing their spatial relationship to determine user intent, merging two separate sensing systems into a coordinated feedback mechanism.

Inventive Principle:

Principle #5Merging (Combining)

3Speed

If feedback is provided without gaze validation, then interaction speed is improved, but reliability deteriorates due to potential misinterpretation

Engineering Contradiction:

Improveinteraction speedVSAvoiduser intent validation

Core Design Contradiction:

SpeedVSReliability

Solution Approach 1:

The system performs preliminary gaze validation before providing feedback for touch inputs. The processor calculates the distance between touch position and gaze position in advance to determine whether feedback should be provided, ensuring reliable intent recognition before executing the feedback action.

Inventive Principle:

Principle #10Preliminary action

Data Source

PatentUS12353627B2Head-wearable electronic, method, and non-transitory computer readable storage medium for executing function based on identification of contact point and gaze point

Publication Date: 2025.07.08 SAMSUNG ELECTRONICS CO LTD

AI summary

According to an embodiment, a wearable device may display, based on contact on a second surface identified using a touch sensor, a visual object indicating a first position of the touch input on the second surface in a screen through a display. The wearable device may identify, in response to the touch input, a second position in the screen of a gaze identified based on an image obtained through a camera exposed outside at a portion of a first surface. The wearable device may provide, in response to the second position identified within a specified distance from the first position of the visual object, feedback with respect to the touch input. The wearable device may cease to provide the feedback in response to the second position identified outside from the first position by the specified distance.