Gaze Duration Control for Superimposed Display Objects
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Solution Overview
Problem
Existing electronic devices that use line-of-sight input struggle to accurately perform intended functions when selectable objects are superimposed, as they often activate functions unintentionally due to natural eye movements, leading to unintended operations.
Innovation Solution
An electronic device equipped with a receiving unit for line-of-sight input, a display control unit, and a control unit that differentiates between gaze durations to determine the desired function to perform, allowing specific actions only after predetermined trigger times, thereby preventing unintended activations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If line-of-sight input is used to select objects, then operation speed is improved, but accuracy deteriorates due to fixational eye movements causing unintended selections
Solution Approach 1:
The patent applies dynamics by making the selection criteria adaptive based on gaze duration. The system dynamically adjusts the selection state according to how long the user has been gazing at a position, transitioning from a non-selected state to a selected state only after a predetermined time threshold is exceeded. This dynamic adjustment resolves the contradiction by allowing quick glances without selection while enabling intentional selections after sustained gaze, thus maintaining both speed and accuracy.
2Quantity of substance
If superimposed display objects are used to show multiple functions, then information density is improved, but reliability deteriorates due to inability to distinguish intended selection target
Solution Approach 1:
The patent applies preliminary action by establishing a preliminary selection state based on gaze duration before executing the final function. When the user gazes at a superimposed position for the predetermined time, the system preliminarily determines this as the intended selection target and sets it as the selected object. This preliminary determination based on sustained gaze resolves the reliability issue by ensuring that only intentional selections (after sustained gaze) trigger functions, while accidental glances do not, thus maintaining high information density with reliable function execution.
Data Source
AI summary
An electronic device comprising a control unit performs control such that despite a predetermined trigger issued before a duration of a gaze state according to a line-of-sight input relative to a first region, in which the display item is displayed, reaches a first time, neither a first function nor a second function is performed, in response to the predetermined trigger issued in a state where the duration of the gaze state relative to the first region is at least the first time and less than a second time, a part of a display object based on an input position of the line-of-sight input is selected and the first function is performed, and in response to the predetermined trigger issued in a state where the duration is at least the second time, the display item is selected and the second function is performed.