Identification Document Antenna Security Portion for Portrait Tamper Detection
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Solution Overview
Problem
Forgers manipulate identification documents by altering the main portrait from the backside of the substrate, which is not easily detectable, compromising the document's authenticity.
Innovation Solution
Embed an antenna in the substrate with a security portion positioned between the portrait portion and the backside, such that any attempt to alter the main portrait damages the antenna, disabling wireless communication and alerting authorities to manipulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the backside of the substrate is left accessible for manufacturing or design purposes, then manufacturing ease and design flexibility are improved, but security against forgery deteriorates because forgers can access and alter the main portrait from the backside
Solution Approach 1:
The antenna is positioned and embedded in the substrate during manufacturing before the document is completed. This preliminary placement creates a security barrier that will protect the portrait portion throughout the document's lifecycle, preventing future forgery attempts from the backside while maintaining manufacturing feasibility
Solution Approach 2:
The antenna serves as an intermediary security element between the portrait portion and the backside of the substrate. It acts as a protective barrier that forgers must compromise to alter the portrait, thereby mediating between the need for backside accessibility and the need for security
2Adaptability or versatility
If an antenna is embedded in the substrate to enable wireless communication, then communication functionality is improved, but device complexity increases due to additional embedding and positioning requirements
Solution Approach 1:
The antenna is designed to serve dual functions: enabling wireless communication between the integrated circuit and reader devices, and simultaneously acting as a security feature that protects the portrait portion from forgery. This multi-functionality reduces overall system complexity by combining security and communication functions in a single component
Solution Approach 2:
The security function and communication function are merged into a single antenna component. The antenna is both the communication element and the security barrier, eliminating the need for separate security features and reducing manufacturing and design complexity
3Object-affected harmful factors
If the antenna security portion overlaps with the portrait portion, then security against forgery is improved by damaging the antenna during alteration attempts, but manufacturing precision requirements increase due to precise positioning needs
Solution Approach 1:
The antenna is designed with different functional portions: a communication portion for wireless communication and a security portion that overlaps with the portrait portion. This local differentiation allows the security portion to be precisely positioned over the portrait while the rest of the antenna maintains optimal communication characteristics, reducing overall manufacturing precision requirements
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 embedded antenna acts as a security mechanism, ensuring the integrity of the main portrait is maintained by disabling communication upon attempted manipulation, allowing for quick detection of tampering.
Implementation Method 1
the antenna is configured to allow wireless communication between the integrated circuit and associated (external) reader devices
Data Source
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AI summary
An identification document such as a passport or an identity card, the identification document having a substrate (1), a portrait portion (15), and an antenna (20). The substrate (1) has a front side (FS) and a backside (BS) opposite to the front side (FS) in a thickness direction (d) of the substrate (1). The portrait portion (15) has a main portrait of the identification document's holder. The antenna (20) is embedded in the substrate (1). A security portion (19) of the antenna (20) is positioned between the portrait portion (15) and the backside (BS) of the substrate (1) and overlaps with the portrait portion (15).