Wearable Phone EMG Sensor Ring for Keyless Input
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Solution Overview
Problem
Conventional mobile phones with multiple input keys face challenges in miniaturization and design, making it difficult to create a wearable device that meets user satisfaction for high-quality operation.
Innovation Solution
A wearable mobile phone utilizing electromyography (EMG) sensors to detect hand motion, allowing users to input information without physical keys, comprising an EMG measuring unit, transferring unit, determining unit, and a mobile phone functioning unit with an antenna and sound device, enabling keyless operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If multiple input keys are provided on the front surface of the mobile phone, then the operability and information input capability are improved, but the size of the mobile phone increases and design flexibility is limited
Solution Approach 1:
The patent replaces the mechanical keyboard input system with an EMG-based bio-signal detection system. The EMG sensors detect electrical signals from hand muscle movements, converting mechanical hand motions into digital input signals without requiring physical keys. This substitution eliminates the need for a keyboard while maintaining input capability.
Solution Approach 2:
The patent introduces EMG sensors as an intermediary between the user's hand movements and the phone's input processing system. The sensors act as a mediator that captures biological signals from hand muscles and converts them into actionable input data, enabling keyless operation through muscle signal detection.
2Adaptability or versatility
If standardized input keys are provided to receive required information, then the information input capability is improved, but the device cannot be easily made wearable and portable
Solution Approach 1:
The patent makes the EMG sensor ring adaptable to various hand sizes and wear scenarios. The ring-shaped design can be worn on different wrists and the system can detect various hand motions (pinch, thumb movement, finger curvature) to provide multiple input functions. This universal design enables the device to be both wearable and functionally versatile.
Solution Approach 2:
The patent transitions from two-dimensional keyboard input to three-dimensional hand motion detection. By capturing EMG signals from multiple hand muscles and analyzing their spatial activation patterns, the system converts complex 3D hand gestures into digital input signals, enabling natural wearable operation.
3Reliability
If physical input keys are used, then the input method is simple and reliable, but the mobile phone cannot be miniaturized and carried easily
Solution Approach 1:
The patent replaces the mechanical keyboard with an electronic EMG detection system that uses electrical sensors to detect muscle signals. This substitution eliminates the need for physical keys while maintaining reliable input through sophisticated signal processing that filters noise and identifies hand motion patterns.
Solution Approach 2:
The patent changes the detection parameter from mechanical contact (key presses) to electrical/biological signals (EMG). By monitoring changes in electrical muscle signals rather than physical key positions, the system achieves reliable input detection without requiring any physical input hardware, enabling device miniaturization.
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 miniaturization and easy carrying of mobile phones by allowing users to input information through hand motion detection, eliminating the need for physical keys and enhancing user experience.
Implementation Method 1
an EMG measuring unit having a plurality of EMG measuring sensors for detecting the EMG changed by hand motion of a user
Data Source
AI summary
Disclosed are a wearable mobile phone capable of detecting EMG changed by hand motion of a user and a control method of an input unit of the wearable mobile phone. The wearable mobile phone includes an EMG measuring unit 10 having a plurality of EMG measuring sensors 11 for detecting the EMG changed by hand motion of a user, and made in a ring shape to be worn on a wrist of the user, an EMG transferring unit 20 connected to the EMG measuring unit 10 for transferring the EMG measured by the EMG measuring unit, an EMG determining unit 30 mounted to one side of the EMG transferring unit 20 for receiving EMG from the EMG transferring unit to determine the hand motion and extract an input signal for the mobile phone corresponding to the hand motion, and a mobile phone functioning unit 40 receiving the input signal from the EMG determining unit for functioning the mobile function and having an antenna and a sound transferring device. The wearable mobile phone allows the user to input wanted information related to operation of the mobile phone, without using input keys, which can miniaturize the mobile phone and easily carry the mobile phone.