Fingerprint-Based Lexicon Selection for Input Efficiency
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Solution Overview
Problem
Current text input methods require users to manually log in to their accounts each time they use a text input application, leading to low input efficiency and potential privacy leaks due to confusion between different users' lexicons.
Innovation Solution
Implementing a fingerprint authentication system that automatically invokes a user's personal lexicon based on their fingerprint, allowing the electronic device to determine candidate words without user awareness, thereby simplifying the login process and enhancing input efficiency while reducing privacy risks.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual login is required for each user to access personal lexicon, then user privacy is protected through account authentication, but input efficiency decreases and operation complexity increases
Solution Approach 1:
The system automatically identifies the current user through fingerprint recognition and activates the corresponding personal lexicon without requiring manual login. The text input application serves itself by autonomously managing user identification and lexicon selection based on the detected fingerprint, eliminating the need for users to manually authenticate.
Solution Approach 2:
The patent replaces the manual mechanical login process with an automated fingerprint recognition system. Instead of requiring users to manually enter credentials, the system uses biometric fingerprint data to automatically identify users and retrieve their personal lexicons, substituting manual authentication with automated biometric verification.
2Productivity
If manual login is required to switch between users, then correct personal lexicon is ensured, but time is lost during authentication process
Solution Approach 1:
The system performs user identification in advance by recognizing the fingerprint before the user actually needs to input text. The fingerprint is captured and processed preliminarily, allowing the corresponding personal lexicon to be activated before the typing task begins, thus eliminating login delays during the actual input process.
Solution Approach 2:
The text input application automatically manages the user identification and lexicon activation process without requiring user intervention. The system serves itself by detecting the fingerprint, identifying the user, and activating the appropriate lexicon autonomously, thereby eliminating the time users would otherwise spend on manual login procedures.
3Adaptability or versatility
If personal lexicon is stored per user account, then user-specific input habits are preserved, but system complexity increases due to account management requirements
Solution Approach 1:
The patent introduces fingerprint data as an intermediary that links users to their personal lexicons. Instead of requiring complex account management systems, the fingerprint serves as a simple biometric key that automatically identifies the user and retrieves the corresponding lexicon from storage, simplifying the interaction between multiple users and their personalized data.
Solution Approach 2:
The system creates a mapping copy between fingerprint data and user accounts/lexicons. By storing the correspondence between fingerprint identifiers and personal lexicon locations, the system enables quick automatic retrieval without requiring users to manually manage accounts or remember credentials, thus reducing operational complexity while maintaining personalization.
Data Source
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AI summary
Embodiments of this application provide an input method. The input method may be implemented in an electronic device that has a fingerprint collection device, and the method includes: when a text input application runs, obtaining, by the electronic device, a fingerprint of a user on a touchscreen; determining, by the electronic device when the fingerprint is a prestored registered fingerprint, a target lexicon associated with the fingerprint; and providing, by the electronic device by using the target lexicon, at least one candidate word corresponding to a current input event.