One-Button Password Input System for Compact Security Devices
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Solution Overview
Problem
Conventional password input systems, such as numeric keypads on security devices, are prone to key wear and tear, increasing the risk of password leakage and hindering device miniaturization.
Innovation Solution
A password input and identification system utilizing a one-button password input component that generates trigger signals in response to user inputs, with a controller counting these signals to determine digit values and compare them to a stored password, allowing for secure and compact password entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a numeric keypad is used for password input, then password entry functionality is provided, but key wear increases the risk of password leakage and the device size cannot be reduced
Solution Approach 1:
The patent merges multiple key functions into a single button. The one-button password input component integrates the functionality of multiple numeric keys into one physical button, eliminating key wear issues while maintaining password entry capability. The button can generate different digit signals through varying press patterns (continuous press vs. release-press sequences), effectively replacing an entire numeric keypad.
Solution Approach 2:
The single button performs multiple functions: it can input different digits (0-9) through different pressing patterns, serve as both the only input mechanism and the identification mechanism. The button is universally used for all password digit inputs, eliminating the need for multiple specialized keys and reducing device complexity.
2Adaptability or versatility
If multiple keys are provided for password input, then complete digit input capability is achieved, but key wear and tear increases over time
Solution Approach 1:
The patent combines multiple key functions into a single button that can generate all necessary digit inputs through different press patterns. This eliminates the wear and tear problem associated with multiple physical keys while maintaining complete digit input capability through temporal variation (different pressing sequences) rather than spatial variation (multiple keys).
3Ease of operation
If a numeric keypad is included in the security device, then password input is enabled, but it hinders downsizing of the device
Solution Approach 1:
The patent merges the functionality of an entire numeric keypad into a single button, dramatically reducing the space required for password input. The one-button component occupies minimal space compared to a traditional numeric keypad, enabling device downsizing while maintaining full password input functionality through intelligent signal processing of different press patterns.
Data Source
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AI summary
A password input and identification system (1) includes a one-button password input component (10) and a controller (30). The one-button password input component (10) generates a series of trigger signals in response to a series of triggers that correspond to a series of user-input digits. The controller (30) determines a value of each of the user-input digits by counting a number of the trigger signal(s) that correspond (s) to the user-input digit to serve as the value of the user-input digit. The controller (30) compares the user-input digits with the predetermined password after the input of the user-input digits is finished, and performs a predetermined action when the user-input digits match the predetermined password.