Mobile Terminal Touch Input Categorization via Area Thresholds
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Solution Overview
Problem
Existing mobile terminals with touch panels face limitations in user interface functionality due to the limited number of distinct touch inputs available for operating complex functions, making it inconvenient to perform various operations without peripheral devices like keyboards or mice.
Innovation Solution
A mobile terminal configuration that differentiates between 'palm touch' and 'finger touch' inputs based on pre-set area thresholds, allowing for distinct modes of operation such as palm touch mode and finger touch mode, which enable different functions and interactions by tracking touched areas, movement distances, directions, and holding times.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If a touch panel is used instead of peripheral devices, then portability is improved, but the number of distinct touch inputs is limited
Solution Approach 1:
The patent applies parameter changes by analyzing multiple characteristics of touch inputs including touched area, movement distance, movement direction, and holding time. By varying these parameters, the system can distinguish between different input types (palm touch vs. finger touch) and execute different functions, thereby increasing the versatility of the touch panel without adding physical peripherals.
2Adaptability or versatility
If multiple functions are added to a mobile terminal, then functionality is improved, but device complexity increases
Solution Approach 1:
The patent segments touch inputs into different categories based on their characteristics: palm touch inputs (larger touched area) and finger touch inputs (smaller touched area). Each category can trigger different functions or modes, allowing multiple functions to be accessed through a unified touch interface without increasing physical device complexity.
Solution Approach 2:
The system dynamically adjusts its behavior based on the detected touch characteristics. By monitoring parameters such as touched area, movement distance, direction, and holding time in real-time, the system can adaptively execute different operations, enabling complex functionality through dynamic response to varying input patterns.
Data Source
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AI summary
A mobile terminal having a touch screen and a method of operating a user interface in the mobile terminal. The method includes: detecting a touch input, determining a touched area corresponding to the touch input; and executing different functions according to whether the touched area is equal to or greater than a pre-set area threshold. The touch inputs may be categorised according to their properties including touched area, movement, movement distance and movement direction.