Fingerprint Sensor Input Device for Compact Touch Screen Key Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Mobile terminals with touch screens face challenges in rapidly selecting frequently used operation modes due to small key sizes on the soft keyboard, leading to inaccuracies and a conflict between functionality and design compactness.
Innovation Solution
A user input device and method utilizing a fingerprint recognition sensor to detect fingerprint patterns and directions, allowing for the display of input patterns specific to selected operation modes, thereby reducing the size of the touch screen input panel and enhancing key input accuracy by dividing the soft keyboard into sections and using fingerprint direction for navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a soft keyboard with all keys is displayed on a small touch screen, then complete input functionality is provided, but key size becomes too small for accurate input and display area is reduced
Solution Approach 1:
The soft keyboard is divided into multiple sections, with only the necessary section displayed at a time. This segmentation allows keys to be displayed at optimal sizes for accurate input while maintaining access to all input functions through section navigation.
Solution Approach 2:
The keyboard display is made dynamic by switching between different sections based on input needs. The system adapts the displayed keyboard section according to the current input context, allowing key sizes to be optimized for accuracy while providing access to the full keyboard functionality when needed.
2Adaptability or versatility
If operation mode selection is implemented through multiple key inputs on a soft keyboard, then mode selection capability is provided, but input time increases and user convenience decreases
Solution Approach 1:
Different fingerprint patterns are pre-assigned to different operation modes. When a user places their finger on the sensor, the system immediately recognizes the fingerprint pattern and activates the corresponding pre-configured operation mode, eliminating the need for multiple key inputs to select modes.
Solution Approach 2:
The mechanical key input system is replaced with a biometric recognition system. Instead of requiring users to physically press multiple keys to select operation modes, the system uses fingerprint pattern recognition to automatically determine and activate the desired mode, significantly reducing selection time.
3Adaptability or versatility
If a full soft keyboard is displayed to provide all input functions, then complete character/number/symbol input capability is achieved, but the display area for inputted data is reduced
Solution Approach 1:
The keyboard is segmented into functional sections (characters, numbers, symbols, etc.), and only the relevant section is displayed at any given time. This allows the data display area to be maximized while maintaining access to the complete input character set through section switching.
Solution Approach 2:
The keyboard display dynamically adjusts to show only the section needed for current input requirements. This dynamic behavior allows the system to provide complete input functionality while maximizing the data display area by eliminating unnecessary keyboard sections from the visible screen.
Data Source
AI summary
Disclosed are a user input device and a method for rapidly selecting an operation mode in a mobile terminal having a touch screen input panel and a fingerprint recognition sensor. The user input method includes setting operation modes for at least one fingerprint data and input pattern, each comprised of keys necessary to implement a corresponding operation mode; detecting fingerprint data inputted from the fingerprint recognition sensor, and confirming an operation mode set for the inputted fingerprint data; and displaying an input pattern corresponding to the confirmed operation mode on the touch screen input panel.