Mobile Device Security Lock Adaptive Unlocking
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Solution Overview
Problem
Current mobile electronic devices lack an effective unlocking sequence for security locks that distinguishes between user movement states, potentially allowing unauthorized access when the user is moving.
Innovation Solution
Incorporating an acceleration sensor to determine the user's movement state, allowing unlocking via biological information when stationary and prohibiting unlocking via non-biological inputs when in motion, while permitting unlocking via biological information only when moving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If unlocking is permitted via both non-biological and biological information input when the user is stationary, then ease of operation is improved, but security reliability deteriorates when the user is moving
Solution Approach 1:
The patent applies dynamics by making the unlocking system adaptive to the user's movement state. The controller dynamically adjusts which input methods are accepted based on acceleration sensor data: when movement is detected, only biological information input is permitted; when stationary, both biological and non-biological inputs are accepted. This dynamic adaptation resolves the contradiction by maintaining ease of operation during stationary use while ensuring security reliability during movement.
Solution Approach 2:
The patent changes the parameter of input method acceptance based on the movement state parameter detected by the acceleration sensor. The system transitions between two operational modes: a restricted mode (movement detected) allowing only biological information input, and a permissive mode (stationary) allowing both biological and non-biological information input. This parameter-based control resolves the contradiction by adapting system behavior to contextual conditions.
2Reliability
If unlocking is restricted to biological information only when the user is moving, then security reliability is improved, but ease of operation deteriorates
Solution Approach 1:
The system dynamically adjusts operational restrictions based on real-time movement detection. During movement, the system implements stricter controls (biological input only) to maintain security reliability, while during stationary periods, it relaxes controls to allow multiple input methods for improved ease of operation. This dynamic behavior resolves the contradiction by applying different operational constraints appropriate to each state.
Solution Approach 2:
The patent changes the acceptance parameter of input methods based on the detected movement state. When acceleration exceeds a threshold indicating movement, the system parameter changes to accept only biological information. When acceleration indicates stationary state, the parameter changes to accept both biological and non-biological information. This parameter switching resolves the contradiction between security and ease of operation.
3Ease of operation
If both non-biological and biological information inputs are accepted regardless of movement state, then ease of operation is maintained, but unauthorized access risk increases during movement
Solution Approach 1:
The patent applies preliminary anti-action by proactively preventing unauthorized access attempts during movement through acceleration detection. Before processing any unlock request, the system checks the movement state via the acceleration sensor and preemptively blocks non-biological information inputs when movement is detected. This preliminary preventive measure eliminates the harmful factor of unauthorized access during movement while maintaining ease of operation during stationary use.
Solution Approach 2:
The acceleration sensor serves as an intermediary that mediates between the user's physical state and the unlocking system's security policies. The sensor detects movement and communicates this state to the controller, which then adjusts input acceptance accordingly. This intermediary mechanism resolves the contradiction by providing objective, real-time data about user state to inform security decisions, preventing unauthorized access during movement while allowing convenient operation when stationary.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances security by preventing accidental or unauthorized unlocking when the user is moving, ensuring secure operation during transit or activity.
Implementation Method 1
an acceleration sensor configured to detect an acceleration value
Data Source
AI summary
A mobile electronic device includes an acceleration sensor configured to detect an acceleration value, a controller configured to determine, based on the acceleration value, movement state of user of the mobile electronic device, a first input unit configured to receive input of information enabling unlocking of a security lock state in which a security lock is effective, and a second input unit configured to receive input of biological information enabling unlocking of the security lock state.