Curved Biometric Reader for Newborns Using Frustrated Total Internal Reflection
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Solution Overview
Problem
Current newborn identification systems are inadequate, as they lack the ability to effectively capture and record high-resolution biometric data for newborns and their mothers, leading to vulnerabilities in child trafficking and organ trafficking, and existing biometric systems are not designed to handle the unique challenges of neonatal identification.
Innovation Solution
A high-resolution portable biometric reader with a curved, ergonomic design and a resolution of 1450 ppi over an 18×36 mm capture area, using frustrated total internal reflection with a prism, allowing for simultaneous registration of fingerprints, palm prints, and footprints of newborns and their mothers, ensuring accurate and secure identification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If commercially available biometric systems are used for adults, then identification capability is provided, but they cannot capture high-resolution images of newborns' smaller fingerprints
Solution Approach 1:
The patent applies local quality by creating a specialized biometric capture surface with specific optical properties tailored for newborn fingerprints. The curved surface with specific radius of curvature and the frustrated total internal reflection optical system are locally optimized to enhance resolution for the smaller newborn fingerprint patterns, rather than using a generic adult-oriented system.
Solution Approach 2:
The patent changes key parameters including the optical resolution (achieving greater than 29 lp/mm), the capture surface curvature radius (between 10mm to 50mm), and the capture area dimensions (greater than 18×36 mm) to specifically accommodate newborn biometric characteristics, which are fundamentally different from adult parameters.
2Measurement precision
If high-resolution capture is achieved, then identification accuracy improves, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical focusing and adjustment mechanisms with an optical approach based on frustrated total internal reflection. The curved capture surface and prism work together to achieve high resolution through optical principles rather than mechanical complexity, simplifying the overall device structure while maintaining superior image quality.
3Area of stationary object
If the capture area is enlarged to accommodate newborns' hands and feet, then more biometric data can be collected, but the device becomes less portable
Solution Approach 1:
The patent employs a curved capture surface with a specific radius of curvature (between 10mm to 50mm) that allows the device to maintain a compact, portable form factor while providing an enlarged effective capture area. The curvature enables the optical system to capture high-resolution images across a larger surface area without increasing the device's physical footprint, maintaining portability while expanding biometric data collection capability.
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
The biometric reader provides a secure and efficient method for linking newborns to their mothers, preventing kidnapping and exchange, while enabling accurate medical registration and follow-up, with a design that minimizes user strain and ensures high-quality image capture, addressing the limitations of existing systems.
Implementation Method 1
using the frustrated total internal reflection technique with a prism as an optical system
Data Source
AI summary
The present patent of invention describes a high-resolution portable biometric reader for newborns that, according to the characteristics thereof, provides for the creation of a biometric reader for newborns (1) in a curved portable structure of electronic type and based on a frame and a comfortable handle enabling the operator to hold the reader in a single hand and arrange the capture surface area according to the newborn's position thus enabling the fingerprints of the newborn and those of the mother to be digitally captured using the frustrated total internal reflection technique with a prism as an optical system (4) having a resolution greater than 29 lp/mm (1450 ppi) over the entire capture area of more than 18×36 mm, so as to provide full optimization in the capturing procedures for fingerprint, palm-print and footprint imaging of newborn babies and the fingerprints of the respective mothers, i.e., the simultaneous registration of the fingerprints of both the baby and the mother and the subsequent inclusion in a medical register system to improve record tracking.