Dynamic Sensing Resolution Control for Biometric Sensors
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Solution Overview
Problem
Existing electronic devices lack a simple configuration that can effectively provide both high-security biometric authentication and accurate biometric signal measurement functions, particularly in health management applications, with limited control over sensing resolution.
Innovation Solution
An electronic device with a display panel featuring a panel driving circuit and sensing circuit, controlled by a processor to vary sensing resolution based on selected modes, allowing for high-security biometric authentication and improved biometric signal measurement accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the same photo sensors are used for both biometric authentication and biometric signal measurement, then device complexity is reduced, but sensing resolution cannot be optimized for different functions
Solution Approach 1:
The patent implements dynamic sensing resolution control where the sensing circuit can switch between high-resolution mode (for biometric authentication) and low-resolution mode (for biometric signal measurement). The processor dynamically adjusts the sensing parameters based on the selected function, allowing the same photo sensors to be optimized for different measurement requirements without requiring separate sensor arrays.
2Reliability
If high sensing resolution is used for biometric authentication, then security level is improved, but power consumption and processing load increase
Solution Approach 1:
The system dynamically adjusts sensing resolution based on the operational mode. When performing biometric authentication, high-resolution sensing is activated to capture detailed biometric data. When performing biometric signal measurement, the system switches to low-resolution mode, reducing power consumption and processing requirements while maintaining adequate measurement accuracy.
3Measurement precision
If separate sensor arrays are used for biometric authentication and biometric signal measurement, then measurement precision for each function is improved, but device complexity and manufacturing cost increase
Solution Approach 1:
The patent designs a universal sensing system where the same photo sensors serve multiple functions. By implementing dynamic resolution control and mode switching, the system achieves both biometric authentication and biometric signal measurement capabilities with a single sensor array, eliminating the need for separate sensor arrays while maintaining measurement precision for each function.
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
Enables both high-resolution biometric authentication and low-resolution biometric signal measurement using the same photo sensors, enhancing the device's capability in health management applications by adapting sensing resolution according to user needs.
Implementation Method 1
each of which including a light emitting element and at least one photo sensor including a light receiving element
Implementation Method 2
at least one photo sensor including a light receiving element
Data Source
AI summary
Provided herein may be an electronic device including a processor configured to control, in a selected first mode, one unit pixel among the plurality of unit pixels to emit light, and control the one unit pixel to be sensed, and configured to control, in a selected second mode, one unit pixel among the plurality of unit pixels to emit light, and control another unit pixel that does not emit light among the plurality of unit pixels to be sensed. The electronic device and a method of driving the electronic device in accordance with embodiments may provide a biometric authentication function and a biometric signal sensing function.