Electronic Device with Gradual Inoperability for Security Documents
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Solution Overview
Problem
Existing security and value documents, such as smart cards and identification documents, lack effective mechanisms to ensure they become inoperable at the end of their validity period, allowing for unauthorized access and manipulation.
Innovation Solution
Incorporating a gradual physical and/or chemical process within the document's electronic device that renders it inoperable after a predetermined validity period, using materials and processes such as diffusion of substances, redox reactions, or changes in conductivity, to prevent further interaction with reading devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no validity expiration mechanism is implemented, then the document can be used indefinitely, but unauthorized access and manipulation become possible after validity expires
Solution Approach 1:
The patent applies preliminary action by pre-configuring the electronic device with a validity period and an expiration mechanism during manufacturing. The device is programmed with a predetermined time limit or usage count threshold that automatically triggers the inoperability state without requiring external intervention, thus ensuring security while maintaining relatively simple device architecture
Solution Approach 2:
The patent utilizes parameter changes by monitoring time or usage count parameters and transitioning the electronic device from a functional state to an inoperable state when predetermined thresholds are reached. This automatic parameter-based triggering ensures that documents become unusable after validity expires, preventing unauthorized access while using straightforward parameter monitoring rather than complex security systems
2Ease of operation
If a mechanical switch is used to activate/deactivate the RFID module, then the module can be manually controlled, but the switching process is not reproducible and manipulation is possible
Solution Approach 1:
The patent replaces the mechanical switch system with an electronic control mechanism. Instead of using physical switches that are prone to manipulation and lack reproducibility, the system uses electronic signals and programmed logic to automatically activate or deactivate the RFID module based on predetermined conditions such as validation status or usage limits, ensuring consistent and reproducible operation
Solution Approach 2:
The system applies self-service by enabling the electronic device to automatically manage its own activation and deactivation states based on internal parameters such as validity period or usage count. The device monitors its own operational status and transitions between functional and inoperable states without requiring external manual intervention, ensuring reproducible and secure operation
3Productivity
If the electronic device remains fully functional after validity expires, then access is maintained, but unauthorized reading and manipulation occur
Solution Approach 1:
The patent applies preliminary anti-action by pre-configuring the electronic device with an expiration mechanism that automatically prevents access after the validity period expires. The device is programmed to transition to an inoperable state at a predetermined time or usage threshold, proactively blocking unauthorized access before it can occur rather than reacting to attempted violations
4Reliability
If a gradual physical/chemical process is used to render the device inoperable, then automatic deactivation is achieved, but the process takes time and may not be immediate
Solution Approach 1:
The patent replaces gradual physical or chemical degradation processes with an electronic control mechanism that can immediately deactivate the device. By using electronic switches, transistors, or circuit breakers controlled by software or hardware logic, the system achieves automatic deactivation without the time delays inherent in physical or chemical processes, ensuring rapid and reliable security enforcement
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
Ensures that security and value documents cannot be processed or accessed automatically after their validity expires, preventing unauthorized reading and manipulation, while maintaining functionality until the validity period is reached.
Implementation Method 1
using materials and processes such as diffusion of substances
Implementation Method 2
using materials and processes such as diffusion of substances, redox reactions
Data Source
Figure 1
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AI summary
The invention relates to a document of predetermined validity which comprises an electronic device (102; 1302). Said device is configured in such a manner that it becomes inoperable approximately towards the end of validity due to a gradually proceeding physical and/or chemical process.