Document Reading Device Spectral Authentication Molecular Layer
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Solution Overview
Problem
Existing authentication methods for documents, such as identification and bank notes, rely on digital encryption protocols that can be decrypted by powerful computers like quantum computers, and require a processor or microchip, increasing production costs and vulnerability to counterfeiting.
Innovation Solution
A document reading device that uses a molecular layer on the authentication document, which generates a stimulation field in response to an electrical voltage, and is illuminated with light of a specific spectrum, allowing for authentication through spectral changes detected by a processor, eliminating the need for a processor in the document.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If digital encryption protocols are used for authentication, then authentication security is improved, but vulnerability to quantum computer decryption increases
Solution Approach 1:
The patent replaces digital electronic encryption systems with a physical/optical authentication system. Instead of using processors and digital encryption protocols that can be broken by quantum computers, the invention uses a molecular layer that interacts with light to produce authentication patterns. The communication interface applies voltage to generate a stimulation field that modifies the molecular layer's optical properties, creating a physical authentication mechanism immune to computational decryption.
2Ease of operation
If a processor or microchip is included in the authentication document, then authentication functionality is improved, but production costs increase
Solution Approach 1:
The patent extracts the processing functionality from the authentication document itself and relocates it to the external communication interface device. The document contains only passive components (molecular layer, carrier layer, electrodes) without any active processing elements. All authentication processing is performed externally by applying voltage and analyzing the optical response, eliminating the need for expensive processors or microchips in the document.
Solution Approach 2:
The patent replaces expensive, complex electronic processing components with inexpensive, simple material layers that can be manufactured at low cost. The molecular layer and carrier layer structure uses basic materials and fabrication techniques, making the authentication document significantly cheaper to produce while maintaining security functionality through the physical-optical authentication mechanism.
3Reliability
If a molecular layer with stimulation field generation is used, then forgery resistance is improved, but device complexity increases
Solution Approach 1:
The communication interface device is designed to perform multiple functions: it applies voltage to generate the stimulation field, detects the optical response from the molecular layer, processes the authentication information, and communicates the result. By consolidating these functions into a single multi-functional device, the patent avoids the need for separate complex systems for each function, thereby reducing overall system complexity while maintaining high forgery resistance through the unique molecular layer response.
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
This method provides a secure and cost-effective authentication process that is resistant to forgery, as the spectral changes depend on the molecular layer's structure and applied voltage, forming a unique and difficult-to-copy absorption spectrum.
Implementation Method 1
the molecular layer 105 placed in an excited state, with a communication interface 107, which can be electrically connected to the authentication document 101 and is designed to apply the electrical voltage to the authentication document 101 to generate the stimulation field
Implementation Method 2
the authentication document 101 is also designed to generate a stimulation field in response to an electrical voltage, which the molecular layer 105 placed in an excited state
Implementation Method 3
the illumination light 111-1 being able to be reflected on the carrier layer 103, a light sensor 113 which is designed to detect the illumination light 111-2 reflected on the carrier layer 103
Data Source
Figure 1
Figure 2a~2b
Figure 3
AI summary
The invention relates to a document reading device (100) for an authentication document (101), wherein the authentication document (101) has a carrier layer (103) and a molecular layer (105) arranged on the carrier layer (103), wherein the authentication document (101) is further configured to generate a stimulation field in response to an electrical voltage, which puts the molecular layer (105) into an excited state. The document reading device (100) comprises a communication interface (107) which is electrically connectable to the authentication document (101) and configured to apply the electrical voltage to the authentication document (101) to generate the stimulation field, and an illumination device (109) which is configured to illuminate the molecular layer (105) of the authentication document (101) with illumination light (111-1), wherein the illumination light (111-1) has a first light spectrum.wherein the illumination light (111-1) is reflectable at the carrier layer (103), a light sensor (113) configured to detect the illumination light (111-2) reflected at the carrier layer (103), wherein the reflected illumination light (111-2) has a second light spectrum which differs from the first light spectrum, and a processor (115) configured to authenticate the authentication document (101) on the basis of a comparison of the first light spectrum with the second light spectrum.