Wearable Touch Input Segmentation for Posture-Based False Touch Control
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Solution Overview
Problem
Wearable devices often mistakenly interpret unintended external objects as touch inputs, leading to unintended actions and reduced usability.
Innovation Solution
The wearable device identifies a first partial area along the periphery and a second partial area surrounded by it based on its posture, refraining from recognizing unintended touches on the first area and providing data for intended touches on the second area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wearable device recognizes all touch inputs on the display panel, then the touch responsiveness is improved, but false touch inputs from external objects cause unintended actions
Solution Approach 1:
The display panel area is segmented into multiple regions including a first partial area, second partial area, and third partial area. Different touch recognition strategies are applied to each region based on the device posture, allowing selective recognition to avoid false inputs while maintaining responsiveness in valid input zones.
Solution Approach 2:
The touch recognition behavior is made dynamic by changing which areas are recognized based on the detected device posture. When the device is in a reference posture, all areas are recognized; when in a non-reference posture, only specific partial areas are recognized, adapting the recognition behavior to the current state.
2Reliability
If the wearable device restricts touch input recognition to certain areas, then false touches are reduced, but the usability for intended touches is degraded
Solution Approach 1:
The restricted recognition areas are not fixed but dynamically adjusted based on device posture. In reference posture, the entire display is recognized; in non-reference postures, specific partial areas are selectively recognized, optimizing the balance between avoiding false inputs and maintaining usability for each scenario.
Data Source
AI summary
A control circuit of a wearable device can be configured to: acquire information indicating the position of the wearable device through at least one sensor of the wearable device; identify, based on the information indicating the position differing from a reference position, in a region in which a touch input can be received through a touch sensor of the wearable device, a first partial region located along the periphery of the region and a second partial region surrounded by the first partial region; restrain provision, to at least one processor of the wearable device, in response to identification of points of contact in the first partial region through the touch sensor, of data for identifying, as a touch input, at least some points of contact in the first partial region; and provide, to at least one processor, in response to identification of the points of contact in the second partial region through the touch sensor, the data for identifying, as a touch input, at least some points of contact in the second partial region.