Integrated Keypad System Using Fingerprint Recognition
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Solution Overview
Problem
Miniaturization of electronic devices is hindered by the need for human interaction input methods, as standard keypads are insufficient for quick and easy text and function entry, and voice recognition technologies face limitations in accuracy and usability, especially in noisy environments and with small displays.
Innovation Solution
A fingerprint detection device that recognizes pattern differences in fingers to enable character and function input, combining with voice recognition to enhance accuracy and ease of use, allowing for secure and efficient operation of portable devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If a standard telephone keypad is used for text and function input, then the device can be miniaturized, but the input process becomes time-consuming and complex
Solution Approach 1:
The invention divides the input process into two independent segments: voice recognition for character identification and keypad presses for function selection and confirmation. This segmentation allows the voice recognition system to handle complex text input without requiring multiple keypad presses, thereby maintaining fast input speed while enabling device miniaturization.
Solution Approach 2:
The system combines multiple input methods (voice recognition and keypad input) into a unified interface that can handle both text and function input. This multi-functional approach allows the miniaturized device to provide comprehensive input capabilities without requiring a full-sized keyboard, resolving the contradiction between device size and input efficiency.
2Device complexity
If multiple key presses are required to select letters or symbols on a telephone keypad, then device complexity is reduced, but user frustration and input time increase
Solution Approach 1:
The invention replaces the mechanical multiple-press system with a voice recognition system that identifies characters through acoustic signals. Users speak the desired letter or symbol, and the system recognizes it directly, eliminating the need for multiple sequential key presses and significantly improving ease of operation while maintaining simple device structure.
Solution Approach 2:
The voice recognition system acts as an intermediary between the user and the keypad system. Instead of directly pressing multiple keys to select a character, the user speaks to the voice recognition system, which then translates the speech into the corresponding character or function, making the interaction more natural and convenient.
3Productivity
If voice recognition technology is used alone for input, then input speed improves, but accuracy decreases in noisy environments
Solution Approach 1:
The system incorporates feedback mechanisms where the voice recognition results are displayed to the user for confirmation. Users can verify recognized characters and correct errors by pressing corresponding keypad keys, creating a feedback loop that improves recognition accuracy while maintaining fast input speed through voice commands.
Solution Approach 2:
The invention merges voice recognition technology with traditional keypad input systems into a hybrid interface. The voice recognition handles character identification to maintain fast input speed, while the keypad provides confirmation and correction capabilities to improve recognition accuracy, especially in noisy environments where voice recognition alone may fail.
Data Source
AI summary
A data entry system using a number of different input signals provided by interacting with input means such as keys wherein to at least some of the different input signals a number of symbols including substantially all of the letters of the alphabet of one language are distributively assigned such that at least two of the letters are ambiguously assigned to at least one of the some input signals. The data entry system includes a database of words and uses a word predictive system such that in order to enter a word of the database the user provides a first input information consisting of providing the input signals corresponding to the characters, generally the letters, of the word, and an additional input information corresponding to at least one of the characters of the word and its corresponding input signal provided through the first input information, and wherein the system precisely recognizes the character among the ambiguous characters assigned to the input signal and provides a word of the dictionary that corresponds to the first and the additional input information.