Mobile Device Screen Timeout Adjustment via Acceleration Sensors
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Solution Overview
Problem
Existing mobile device security measures, such as screen timeouts, often balance convenience and security, but fail to adapt dynamically to the user's location and risk of theft, leading to either frequent password entries or increased security risks.
Innovation Solution
A method that adjusts the screen timeout interval of mobile devices based on ambient wireless signals, geographic location, and risk assessments, using sensors like GPS, accelerometers, and RFID tags, to automatically adjust security settings according to the environment, such as shortening timeouts in high-risk areas and lengthening them in low-risk areas.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the timeout interval is set to be relatively long to reduce password entry frequency, then user convenience is improved, but security risk increases
Solution Approach 1:
The patent implements dynamic timeout adjustment by continuously monitoring acceleration sensor data to detect device movement patterns. The timeout interval automatically extends when the device is determined to be in secure conditions (e.g., on a stable surface in a trusted location) and shortens when movement or potential theft risk is detected, thus adapting security parameters in real-time based on environmental context rather than using a fixed timeout value
Solution Approach 2:
The system incorporates feedback loops where acceleration data is continuously collected and analyzed to assess device stability and location security. This feedback mechanism allows the system to automatically adjust timeout settings based on real-time conditions, creating a closed-loop control system that balances security and convenience dynamically rather than relying on static predetermined values
2Reliability
If the timeout interval is set to be relatively short to enhance security, then security risk is reduced, but user convenience deteriorates
Solution Approach 1:
The system dynamically adjusts timeout intervals based on real-time acceleration data analysis. When the device is detected to be in secure conditions (stable, stationary in trusted locations), the timeout interval is automatically extended to provide user convenience. When potential theft risk is detected through movement patterns, the timeout shortens to enhance security, thus adapting to contextual conditions rather than maintaining a fixed short interval
Solution Approach 2:
The patent changes the timeout parameter dynamically based on environmental conditions detected through acceleration sensors. The system monitors device stability, location context, and movement patterns to adjust the timeout interval parameter in real-time, transitioning between short and long timeout values based on assessed security risk rather than using a static parameter value
3Reliability
If standard minimum timeout interval is enforced for all devices to reduce security risk, then security is improved, but adaptability to different user needs and locations deteriorates
Solution Approach 1:
The patent applies local quality by implementing location-aware security policies where different timeout intervals are enforced based on the device's current location and environmental context. The system analyzes acceleration data to determine if the device is in a trusted location (e.g., home, office) versus a public or potentially risky environment, and adjusts timeout settings accordingly, allowing longer timeouts in secure locations and shorter timeouts in public spaces
Solution Approach 2:
The system dynamically adapts timeout settings based on real-time analysis of device usage patterns and environmental context from acceleration sensors. Rather than enforcing a uniform minimum timeout, the system continuously adjusts the interval based on detected conditions such as device stability, location context, and movement patterns, providing adaptability to different user needs and locations
Data Source
AI summary
Methods, devices, and systems are disclosed for altering a mobile electronic device's screen timeout based on an acceleration event. A ringtone can be altered in addition to the password timeout time. Historical accelerations may be recognized and the time out can be adjusted based on the determined risk associated acceleration.