Wearable Input Threshold Control for Out-of-View Displays
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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
A wearable device equipped with sensors to detect wearing and inertial information adjusts the input determination threshold based on the display's orientation relative to the user's field of view, changing the threshold value when the display is outside the viewable range to prevent false inputs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the input determination threshold is set to a low value to capture all user inputs, then input responsiveness is improved, but false inputs are increased when the display is outside the user's field of view
Solution Approach 1:
The patent applies dynamics by making the input determination threshold adjustable rather than fixed. The threshold dynamically changes based on the display's orientation relative to the user's field of view. When the display is detected to be outside the field of view, the threshold increases to prevent false inputs; when the display is within the field of view, the threshold decreases to improve input responsiveness. This dynamic adjustment resolves the contradiction between capturing all valid inputs and preventing false inputs.
Solution Approach 2:
The patent changes the parameter of the input determination threshold based on the display orientation parameter. By monitoring the angular relationship between the display and the user's field of view, the system adjusts the threshold parameter to appropriate levels. This parameter change strategy allows the system to adapt to different usage scenarios, maintaining high input accuracy while preserving responsiveness when needed.
2Reliability
If the input determination threshold is set to a high value to prevent false inputs, then input accuracy is improved, but input responsiveness deteriorates
Solution Approach 1:
The system dynamically adjusts the threshold based on real-time detection of display orientation. Rather than using a constantly high threshold that would reduce responsiveness, the threshold is high only when necessary (when the display is outside the field of view) and low when the display is properly positioned for user interaction. This dynamic behavior resolves the contradiction by applying high thresholds contextually rather than universally.
Solution Approach 2:
The threshold parameter is changed based on the angular parameter of display orientation. When the angle indicates the display is outside the field of view, the threshold parameter increases to prevent false inputs. When the angle indicates proper positioning, the threshold parameter decreases to maintain responsiveness. This conditional parameter change resolves the contradiction between accuracy and responsiveness.
3Reliability
If the wearable device continuously monitors display orientation to adjust input thresholds, then input accuracy is improved, but energy consumption increases
Solution Approach 1:
The system employs periodic action by monitoring display orientation at specific intervals or triggered by orientation changes rather than continuously. The inertial sensor detects orientation changes, and the threshold adjustment is triggered when the display transitions in or out of the field of view. This periodic/trigger-based monitoring approach maintains input recognition accuracy while significantly reducing energy consumption compared to continuous monitoring.
Solution Approach 2:
The system uses preliminary action by detecting orientation changes before they affect input validity. The inertial sensor continuously monitors orientation, and when a change that would move the display in or out of the field of view is detected, the threshold is proactively adjusted in advance. This preliminary detection and adjustment prevents false inputs while minimizing the duration of high-threshold states, thereby reducing overall energy consumption.
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.