Wearable Device Skin Gesture Input via Body Surface
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Solution Overview
Problem
Portable electronic devices, especially wearable devices like smartwatches, face limitations in user interaction due to their small size, making it difficult to replicate rich input experiences from traditional devices without adding bulk or complexity through additional hardware.
Innovation Solution
A wearable electronic device equipped with sensors such as accelerometers, gyroscopes, and microphones that detect gestures on the user's body, allowing for input commands like taps and swipes on the skin, enabling a richer interaction experience without external hardware.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If additional hardware such as wearable keyboards or body sensors is used to expand interaction capabilities, then the variety of human interactions is increased, but the bulk and complexity of the wearable device increases
Solution Approach 1:
The wearable device utilizes the user's own body as the input surface, eliminating the need for external keyboards or sensors. The body naturally serves as the interaction interface through gestures performed on skin surfaces, converting the user into part of the input system rather than requiring separate hardware components
Solution Approach 2:
The existing sensors (accelerometer, gyroscope, microphone) are repurposed to detect gestures on various body surfaces. The same sensor suite that detects device movement and environmental sound is now used to detect taps, swipes, and other gestures on the user's hand, forearm, or other body parts, making the sensors serve multiple functions
2Adaptability or versatility
If the screen size is increased to improve interaction richness, then more gestures can be reproduced, but the wearable device becomes less portable and more bulky
Solution Approach 1:
The interaction surface is extended from the two-dimensional screen to the three-dimensional body surface. By detecting gestures on the hand, forearm, and other body parts, the system creates additional spatial dimensions for interaction without increasing device volume. The body becomes an extended input interface that provides ample space for diverse gestures
Solution Approach 2:
The body acts as an intermediary between the user's intent and the device. Instead of directly interacting with the small screen, users perform gestures on their body which are then detected by sensors and translated into device commands. This intermediary layer allows rich interaction without requiring a larger display
3Ease of operation
If traditional input technologies from personal computing devices are replicated, then familiar interaction patterns are provided, but the small form factor of wearable devices makes replication difficult
Solution Approach 1:
The interaction system is segmented into multiple independent zones on the body surface. Different body parts (hand, forearm, wrist) can be tapped or swiped independently, creating multiple input regions that function like separate buttons or input areas. This segmentation provides diverse interaction options without requiring a large continuous surface
Solution Approach 2:
Instead of placing the input surface on the device (screen), the input surface is inverted and placed on the user's body. The device becomes the receiver of gestures rather than the provider of the input surface. This inversion allows the body to provide the interaction area while the device remains small
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
Enables enhanced user interaction on wearable devices by allowing direct skin-to-skin contact gestures, providing a more intuitive and convenient input method that enhances usability without adding bulk, allowing for distinct commands and feedback.
Implementation Method 1
The plurality of sensors may include an accelerometer, a gyroscope, and a microphone. The receiving one or more first input signals may include receiving an acceleration signal from the accelerometer
Implementation Method 2
The plurality of sensors may include an accelerometer, a gyroscope, and a microphone. The receiving one or more first input signals may include receiving a rotational movement signal from the gyroscope
Implementation Method 3
The plurality of sensors may include an accelerometer, a gyroscope, and a microphone. The receiving one or more first input signals may include receiving an acoustic waveform signal from the microphone
Data Source
AI summary
A portable electronic device including: a plurality of sensors configured to generate, in response to a first contact with a body of a user in a vicinity of the portable electronic device, one or more first input signals; a microprocessor; and a memory having stored thereon instructions that, when executed by the microprocessor, control the microprocessor to execute, in response to an analysis of the one or more first input signals indicating that the first contact corresponds to a first gesture, and by the microprocessor, a first command corresponding to the first gesture.