Gaze-Based Call Termination for Glove-Compatible Mobile Terminals
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Solution Overview
Problem
Users face inconvenience in operating capacitive touch screens on mobile communication terminals, especially when wearing gloves, as they require a fine current for input, leading to the need for additional devices like touch pens or conductive gloves.
Innovation Solution
A mobile communication terminal that detects a user's gaze movement frequency using a camera and processes it to control call termination, allowing users to answer or decline calls without physical touch input by displaying a gaze movement frequency detecting screen and performing Fourier transforms on the user's eyeball image.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If capacitive touch screen is used for mobile communication terminal operation, then the terminal can provide modern touch interface functionality, but users wearing gloves cannot operate the terminal because gloves block the fine current required for capacitive touch input
Solution Approach 1:
The patent replaces the mechanical/electrical touch input system with an optical detection system. The camera captures eye movement images, and the processor analyzes these images to detect gaze direction and control the terminal. This substitutes the capacitive touch mechanism (which requires electrical conductivity) with an optical-based gaze detection mechanism that works through gloves without requiring physical contact or electrical conductivity.
2Adaptability or versatility
If touch pens or conductive gloves are provided to enable glove-compatible touch operation, then users can operate the terminal while wearing gloves, but users must purchase additional products and face the risk of losing them
Solution Approach 1:
The terminal uses its existing camera apparatus (designed for other purposes like video calls or photos) to detect eye movements for control purposes. This allows the terminal to serve itself by utilizing its own built-in components rather than requiring external accessories. The gaze detection functionality is integrated into the terminal's existing hardware and software architecture.
Solution Approach 2:
The camera apparatus, originally designed for multimedia functions, is made multi-functional by also serving as the eye movement detection device. This universal use of existing hardware eliminates the need for dedicated control accessories while maintaining full functionality.
3Adaptability or versatility
If gaze movement frequency detection is implemented to control call termination, then users can answer or decline calls while wearing gloves without additional devices, but the system requires complex image processing including Fourier transform analysis
Solution Approach 1:
The patent replaces manual touch input with automated optical detection and signal processing. The camera captures eye movement, the processor performs Fourier transform analysis to extract gaze frequency patterns, and these patterns are translated into control commands. This automated optical control system eliminates the need for physical touch while providing reliable glove-compatible operation.
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 users to control call termination through gaze movement alone, eliminating the need for separate devices like touch pens or gloves, improving usability and reducing costs.
Implementation Method 1
an image detecting unit detecting a user's eyeball image moving according to the display of the gaze movement frequency detecting screen through a camera apparatus
Implementation Method 2
The gaze movement frequency detecting unit may perform the Fourier transform or the unequally spaced fast Fourier transform on the user's eyeball image moving according to the pointer of the call answer section or the call decline section to detect the user's gaze movement frequency
Data Source
AI summary
A mobile communication terminal for controlling call termination based on a user's gaze includes a call answer and decline judging unit configured to compare a user's gaze movement frequency with preset call answer and call decline frequencies and judge a call answer or a call decline according to frequencies coinciding with each other; and a call termination control processing unit configured to perform a call mode or a call refusal mode according to the judgment of the call answer and decline judging unit.