Document Display Device Optical Data Modulation Security
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Solution Overview
Problem
Existing security and value documents with RFID functionality can be unauthorizedly accessed, lacking effective protection mechanisms for data privacy, particularly for sensitive information like biometrics.
Innovation Solution
Incorporating an integrated display device with an electronic memory that modulates data transmission optically, using techniques like intensity, color, or temporal modulation to convey secondary information securely, which is imperceptible to the naked eye, and employing a cryptographic protocol for protected access to sensitive data.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If RFID interface is integrated into security documents for data access, then communication functionality is improved, but vulnerability to unauthorized reading increases
Solution Approach 1:
The patent segments data into two categories: primary data for visual display and secondary data for optical transmission. This segmentation allows different access methods for different data types, with secondary data being protected through optical transmission that requires specific reading conditions, thereby reducing vulnerability to unauthorized reading while maintaining communication functionality.
Solution Approach 2:
The display device serves as an intermediary between the RFID interface and external readers. It optically transmits secondary data (such as cryptographic keys) only after authorized access, creating an additional security layer that prevents direct unauthorized access to sensitive information stored in the RFID interface.
2Loss of information
If optical modulation is used for secondary data transmission, then data privacy is improved, but device complexity increases
Solution Approach 1:
The patent merges the display device's visual output function with the data transmission function. The same display elements that show primary data to users are also used to optically transmit secondary data through modulation. This combining of functions avoids adding separate transmission hardware, thereby limiting the increase in device complexity while achieving improved data privacy.
Solution Approach 2:
The display device is designed with multi-functionality: it simultaneously displays primary information visually and transmits secondary information optically through modulation. This universal design allows a single component to serve multiple purposes, reducing the need for additional dedicated transmission devices and thereby controlling device complexity.
3Reliability
If cryptographic protocol is implemented for protected access, then security is improved, but ease of operation decreases
Solution Approach 1:
The system implements self-service security where the display device automatically manages the cryptographic protocol execution. When a reader requests secondary data, the display device autonomously handles the cryptographic verification and optical transmission processes without requiring manual user intervention, thereby maintaining high security while preserving ease of operation.
Solution Approach 2:
Cryptographic protocols and authentication mechanisms are pre-configured in the document's electronic circuitry. The system performs preliminary security setup during document issuance, so that during operation, the cryptographic verification happens automatically in the background, minimizing user burden while maintaining strong security protections.
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
Enhances data privacy by ensuring only authorized access to sensitive information, while maintaining the visual integrity of the primary data displayed on the document, thus protecting against unauthorized reading.
Implementation Method 1
the control means for controlling the display device are designed for a modulation in order to optically transmit the second data from the display device
Data Source
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Figure 3
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AI summary
The invention relates to a document comprising a built-in display device (102), an electronic memory (126) for storing first (106) and second (107) sets of data, and control means (122, 128, 131) for controlling the display device for reproducing the first set of data. The control means for controlling the display device are designed in such a way as to carry out a modulation for sending the second set of data.