Integrated Biometric Proximity Sensor for Secure Access Control

The patent combines a biometric sensor and a proximity sensor into a single integrated input device. The biometric sensor captures fingerprint or palm vein data for authentication, while the proximity sensor detects the presence of the authenticated user's hand or finger near the device. This merging of sensor types creates a multi-factor authentication system that improves security without requiring separate complex access control mechanisms, as the sensors work together through a unified processing system.

The integrated sensor device serves multiple functions: the biometric sensor performs authentication by capturing and verifying biological characteristics, the proximity sensor performs presence detection to ensure the authenticated user is physically nearby, and together they provide both security verification and access control. This multi-functionality consolidates what would traditionally require separate devices into a single unit, improving security while managing complexity through functional integration.

The system performs preliminary authentication through the biometric sensor before enabling access. When a user places their finger or hand on the biometric sensor, the system pre-processes the biometric data and verifies it against stored credentials. Once authentication is confirmed, the proximity sensor immediately detects the user's presence and grants access without requiring additional steps. This preliminary action ensures security while minimizing the time and effort required for actual access.

The system uses feedback from both sensors to dynamically control access. The biometric sensor provides feedback on authentication status, and the proximity sensor provides feedback on user presence. The processing system continuously monitors both inputs and adjusts access control accordingly: if biometric authentication succeeds and proximity detection confirms user presence, access is enabled; if either condition fails, access is denied. This feedback mechanism ensures secure authentication while maintaining smooth, intuitive operation.

The patent segments the sensor functions into distinct biometric and proximity sensing components, each handling specific aspects of input detection. The biometric sensor processes biological characteristic data separately from the proximity sensor's presence detection. This segmentation allows each sensor type to be optimized for its specific function, improving overall signal quality while managing complexity through modular processing architecture where each segment can be independently tuned and processed.

The system applies different processing qualities to different sensor inputs based on their specific requirements. The biometric sensor receives high-precision processing for authentication verification, while the proximity sensor receives optimized processing for presence detection. The processing system dynamically adjusts processing intensity and algorithms based on the specific sensor being processed and the current operational context, ensuring optimal signal quality for each function without uniformly increasing complexity across the entire system.