Wearable Input Threshold Switching by Display Orientation
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Solution Overview
Problem
Wearable devices face challenges in accurately determining user inputs when the display is outside the user's field of view, leading to potential misinterpretation of commands.
Innovation Solution
The wearable device includes sensors to detect wearing and inertial information, adjusting the input determination threshold based on the display's orientation relative to the user's field of view, ensuring accurate input recognition only when the display is within the viewable range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the input determination threshold is set to a low value to detect user inputs, then input detection sensitivity is improved, but false inputs are generated when the display is outside the user's field of view
Solution Approach 1:
The input determination threshold is dynamically adjusted based on the display orientation detected by inertial sensors. When the display is determined to be outside the user's field of view, the threshold is increased to prevent false inputs. When the display is within the field of view, the threshold returns to a lower value for sensitive input detection. This dynamic adjustment resolves the contradiction between detection sensitivity and false input prevention.
Solution Approach 2:
The system changes the threshold parameter based on the display orientation state. By detecting whether the display is within or outside the user's field of view using inertial information, the system adjusts the input determination threshold between a first threshold value (for normal operation) and a second threshold value (for preventing false inputs). This parameter change strategy allows the system to adapt to different operational contexts.
2Reliability
If the input determination threshold is set to a high value to prevent false inputs, then false input rate is reduced, but legitimate user inputs are missed
Solution Approach 1:
The threshold is not fixed but dynamically adjusted based on display orientation. During periods when the display is outside the field of view, a higher threshold prevents false inputs. When the display returns to the field of view, the threshold decreases to restore sensitive input detection. This dynamic behavior resolves the contradiction by applying different threshold levels at different times.
Solution Approach 2:
The system performs preliminary detection of display orientation using inertial sensors before determining whether to apply a restrictive threshold. By anticipating the display position and proactively adjusting the threshold before false inputs can occur, the system prevents the contradiction from manifesting while maintaining input detection capability when appropriate.
3Measurement precision
If the system continuously monitors display orientation to adjust input thresholds, then input accuracy is improved, but device complexity increases
Solution Approach 1:
The inertial sensors serve as an intermediary mechanism that provides display orientation information to the input control system. Rather than implementing complex vision-based or gesture-based field-of-view detection, the system uses readily available inertial sensor data as a mediator to determine display orientation and adjust thresholds accordingly. This approach achieves high input accuracy without significantly increasing device complexity.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances the accuracy of input detection by preventing false inputs when the display is outside the user's field of view, improving user interaction with wearable devices.
Implementation Method 1
a first sensor configured to detect wearing information about the wearable device
Implementation Method 2
a second sensor configured to detect inertial information about the wearable device
Data Source
AI summary
A wearable device, a sensing information-based input control method of a wearable device, and a recording medium are provided. A wearable device includes an input interface, a first sensor, a second sensor, a display, and at least one processor configured to identify a direction and an angle in which the display faces, determine that the direction in which the display faces corresponds to an outside of a field-of-view range of a user when the identified direction and angle is outside a pre-configured range, configure an input determination threshold value of the input interface to be changed from a configured first threshold value to a second threshold value when determining that the direction in which the display faces corresponds to an outside of the field-of-view range of the user, and perform an operation corresponding to an input when a value greater than the input determination threshold value is input through the input interface.