Wearable Device Touch Input Error Detection Using Multi-Sensor Context
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Solution Overview
Problem
Wearable devices often incorrectly interpret user touch inputs as intentional commands when they are actually unintentional adjustments, leading to user inconvenience.
Innovation Solution
A wearable device equipped with multiple sensors, including touch, proximity, motion, and pressure sensors, uses a processor to determine whether a touch input is erroneous by analyzing sensing values and context information, and performs operations only if the input is deemed intentional.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the wearable device responds to all touch inputs, then user convenience is improved through quick response, but erroneous touches cause inconvenience and incorrect operations
Solution Approach 1:
The patent introduces multiple sensors (proximity sensor, motion sensor, pressure sensor) as intermediaries between the touch sensor and the control system. These sensors provide additional context information that helps distinguish intentional touches from erroneous touches, thereby improving touch input accuracy while maintaining user convenience
Solution Approach 2:
The system implements feedback by continuously monitoring multiple sensing values (proximity, motion, pressure) alongside touch inputs. Based on this feedback, the processor dynamically determines whether to execute the touch command, improving reliability without sacrificing response speed for legitimate touches
2Reliability
If multiple sensors are added to distinguish touch types, then touch input accuracy is improved, but device complexity increases
Solution Approach 1:
The patent makes existing sensors (proximity sensor, motion sensor, pressure sensor) serve a dual purpose: their original functions plus the new function of distinguishing touch types. This approach improves touch input accuracy without significantly increasing device complexity, as these sensors were already part of the wearable device
Data Source
AI summary
A wearable device includes a plurality of sensors including a touch sensor; and a processor configured to: acquire a touch input using the touch sensor; while the touch input is acquired, acquire a sensing value from at least one sensor other than the touch sensor among the plurality of sensors; determine, based on the sensing value, whether the touch input is an erroneous touch; and based on a result of the determination, perform an operation corresponding to the touch input.