Card Display Masking for Unauthorized Viewer Detection
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Solution Overview
Problem
Existing systems fail to protect confidential information on cards from unauthorized viewers, particularly when the card is misplaced or stolen, or when unauthorized individuals are in proximity to the card.
Innovation Solution
A system integrated with sensors and a processor that detects anomalies such as deviation from a baseline environment or proximity to unauthorized viewers, dynamically masking information and disabling data communications on the card device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If confidential information is displayed on the card device for user access, then ease of operation is improved, but security against unauthorized viewing deteriorates
Solution Approach 1:
The patent applies dynamics by making the display state changeable based on environmental conditions. The system dynamically switches between displaying confidential information and masking it with anomaly indicators, allowing the card device to adapt its security level according to the detected environment rather than being static.
Solution Approach 2:
The patent uses visual changes in the display to indicate security states. The display field shows different visual representations - confidential information when safe, and anomaly indicators (such as colored overlays or patterns) when threats are detected, using visual transformation to communicate security status.
2Ease of operation
If the card device displays user information openly, then ease of operation is improved, but reliability deteriorates
Solution Approach 1:
The system implements feedback by continuously monitoring environmental data through sensors and using this information to adjust the display state. The processor receives sensor data, compares it against baseline profiles, and automatically responds by masking or unmasking information, creating a closed-loop security system.
Solution Approach 2:
The patent applies preliminary action by establishing baseline environment data profiles in advance that define safe contexts for displaying information. The system pre-configures security parameters and anomaly detection thresholds before actual use, enabling automatic security responses without real-time human intervention.
3Reliability
If sensors and processing are added to detect anomalies, then security is improved, but device complexity increases
Solution Approach 1:
The patent applies universality by designing a card device that performs multiple functions: it serves as a standard information display card while simultaneously functioning as a security monitoring system with sensors, processors, and anomaly detection capabilities. This multi-functionality reduces the need for separate dedicated security devices.
Solution Approach 2:
The system implements self-service by enabling the card device to autonomously detect anomalies, assess security risks, and mask information without external intervention. The embedded processor and sensors work together to automatically protect confidential information, making the device self-protecting rather than relying on external security systems.
Data Source
AI summary
A card device receives a first sensor data from sensors associated with the card device and extracts a set of user features from the first sensor data, where the user features indicate physical attributes of the user. The card device receives a second sensor data from the sensors. The card device extracts a set of viewer features from the second sensor data, where the viewer features indicate physical attributes of the viewer. The card device compares at least one of the user features with a counterpart feature from among the viewer features. The card device determines that the user is not the viewer. The card device determines a distance between the viewer and the card device. The card device determines that the distance between the viewer and the card device is less than a threshold distance. In response, the card device dynamically masks the information displayed on the card device.