Touchscreen Virtual Scroll Wheels for Multi-Language Data Entry
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing data entry systems for languages that use logograms, such as Chinese, are inefficient on small touchscreen devices due to the large screen area required by virtual keyboards and the difficulty of selecting small virtual keys.
Innovation Solution
A touchscreen-based data entry system using virtual scroll wheels to select character strings in a first language, with a mapping database to convert them into corresponding logograph characters, allowing users to scroll through and select characters for context-based entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a virtual keyboard is used for data entry on touchscreen devices, then character input capability is provided, but screen area is consumed and key selection accuracy deteriorates on small displays
Solution Approach 1:
The patent extracts the character selection function from the traditional keyboard layout and implements it through virtual scroll wheels. Instead of displaying all characters simultaneously as keys, the system extracts only the currently selected character for display while allowing scrolling through the entire character set sequentially, thereby eliminating the need for large keyboard grids on screen.
Solution Approach 2:
The patent transitions from a two-dimensional keyboard grid layout to a one-dimensional scrollable list. Characters are arranged in sequential order that can be scrolled through vertically or horizontally, converting the spatial arrangement problem into a temporal sequence problem where characters are accessed one at a time through scrolling rather than simultaneously displayed.
2Ease of operation
If a virtual keyboard is used for data entry, then character input is enabled, but key selection precision deteriorates due to small key size on touchscreens
Solution Approach 1:
The system extracts the character selection process into a sequential scrolling mechanism where only one character is highlighted for selection at any given moment. This eliminates the need for users to precisely target small keys among many, as the currently selected character is clearly distinguished and can be confirmed with a simple touch action.
Solution Approach 2:
The virtual scroll wheels automatically present characters in a predetermined sequence (such as alphabetical or pinyin order), allowing the character set to self-organize and self-present to the user. The system handles the complex task of character arrangement and navigation automatically, requiring minimal precise user intervention beyond simple scrolling and confirmation gestures.
3Adaptability or versatility
If traditional Pinyin input method is used, then Chinese character conversion is achieved, but data entry efficiency decreases due to multiple steps required
Solution Approach 1:
The patent merges the character selection and confirmation functions into a single integrated scrolling and selecting operation. Instead of requiring separate steps for character selection, menu navigation, and confirmation, the virtual scroll wheels combine these functions so that scrolling to the desired character and touching to confirm are unified into one continuous interaction flow.
Solution Approach 2:
The system performs preliminary organization of characters according to predetermined sequences (such as pinyin alphabetical order) before user interaction begins. Characters are pre-arranged and pre-positioned in the scrollable list, so when the user starts scrolling, the characters are already in the optimal sequence for quick selection, eliminating the need for users to search or navigate through disorganized character sets.
Data Source
AI summary
A touchscreen-based system for data entry using a language conversion is provided. The system may access a mapping database including mappings between character strings in a first language (e.g., English alphabet characters) and character objects in a second language (e.g., Chinese logograph characters). A touchscreen may display a user interface including (a) virtual input scroll wheels that display first language characters and which can be virtually scrolled by touch input to select a string of first language characters, and (b) a virtual results scroll wheel that displays second language character objects mapped to the user-selected string of first language characters, and allows the user to select (by scrolling) a particular second language character object. The selected second language character object may then be entered, e.g., by a touch-based command, into a displayed string of second language characters or into memory or to a related data processing system for further processing.