Security Document Light Pattern Feedback Circuit
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Solution Overview
Problem
Existing value or security documents, such as ID cards, face challenges in providing a user-friendly and cost-effective interface for feedback after user interactions, often requiring expensive components with high energy consumption.
Innovation Solution
A value or security document equipped with an electronic circuit and sensors that generates a light pattern for optical feedback using individually controllable light sources, allowing for visual verification of user interactions without external electronic communication, utilizing biometric sensors and energy-efficient semiconductor-based illuminants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If expensive electronic components with high energy consumption are used for feedback, then the feedback functionality is available, but the cost and energy consumption increase
Solution Approach 1:
The patent replaces complex electronic feedback systems with a simple optical feedback mechanism using light sources that can be controlled individually. This substitution reduces energy consumption while maintaining the feedback functionality, as the optical system requires minimal power compared to traditional electronic displays or communication interfaces.
Solution Approach 2:
The invention uses simple, inexpensive light sources instead of expensive electronic components. These light sources are designed to be cost-effective and energy-efficient, providing the necessary feedback functionality without requiring high-power consumption or complex circuitry.
2Ease of operation
If complex electronic components are used for feedback, then the feedback functionality is available, but the device complexity increases
Solution Approach 1:
The patent replaces complex electronic feedback systems with a simple optical feedback mechanism using light sources that can be controlled individually. This substitution reduces device complexity while maintaining the feedback functionality, as the optical system requires minimal power compared to traditional electronic displays or communication interfaces.
Solution Approach 2:
The invention extracts the essential feedback functionality from complex electronic systems and implements it through simple controllable light sources. By taking out only the necessary elements for feedback (light emission and control), the system achieves simplicity without sacrificing functionality.
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 secure and energy-efficient visual feedback on user interactions, enhancing security and usability by providing clear optical signals for identity verification and reducing the need for complex electronic components.
Implementation Method 1
at least two individually controllable light sources (5) for generating a light pattern (20) which can be visually detected via an upper side (6) and an underside (7) of the document body (2)
Data Source
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AI summary
The invention relates to a security or valuable document (1) comprising a document body (2) with a top surface (6) and a bottom surface opposite the top surface (6), an electronic circuit (7), and at least one sensor (3) for detecting at least one user interaction. The document body (2) has two light sources (5, 5.1-x, 5.2-x) that are visually detectable via the top surface (6) and/or the bottom surface, are connected to the electronic circuit (7), and can be individually controlled by the circuit for generating a light pattern (20). The electronic circuit (7) is configured to evaluate the at least one user interaction, to provide a signal pattern based on the evaluated user interaction, and to output the light pattern (20) on the at least two individually controllable light sources (5, 5.1-x, 5.2-x) based on the signal pattern. The invention further relates to an associated method.