Foldable Data Support with Contactless Chip Security
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Solution Overview
Problem
Existing foldable data supports with contactless chips face security concerns due to the possibility of unauthorized data reading, as current solutions provide only moderate protection against unauthorized access, which can be overcome by increasing electromagnetic power.
Innovation Solution
A foldable data support with a test device that verifies the geometrical configuration of the sheets using signals emitted by coupling elements, generating a signal to authorize or prohibit the activation of the exchange portion of the electronic circuit, ensuring secure exchanges with the external environment, regardless of the electromagnetic power radiated.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If contactless chip is integrated into foldable support for data exchange, then information exchange capability is improved, but security against unauthorized reading deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the antenna system configurable through the foldable structure. The antenna's electromagnetic coupling capability dynamically changes based on the geometrical configuration of the folded sheets. When folded in specific ways, the antenna tracks create constructive or destructive interference patterns, enabling or disabling data exchange capability on demand, thus providing security while maintaining functionality.
Solution Approach 2:
The patent implements parameter changes by utilizing the physical geometry parameters of the folded sheets to control antenna performance. The angular relationships and spatial positioning of antenna tracks on different sheets change electromagnetic field distribution, effectively changing the coupling parameter between the contactless chip and external readers, thereby controlling access to data.
2Ease of operation
If antenna is designed to enable exchange in open position, then ease of operation is improved, but security against unauthorized reading deteriorates
Solution Approach 1:
The patent applies segmentation by dividing the antenna system into multiple independent tracks distributed across different sheets. Each antenna track segment contributes to the overall electromagnetic coupling, but only specific geometric arrangements of these segments create the required coupling condition. This segmentation allows the system to require specific folding configurations for activation, enhancing security while maintaining ease of operation when properly configured.
3Adaptability or versatility
If electromagnetic coupling is enhanced for better data exchange, then information exchange capability is improved, but vulnerability to unauthorized reading increases
Solution Approach 1:
The patent uses the foldable sheet structure itself as an intermediary mechanism that mediates between the contactless chip and the external environment. The geometric configuration of folded sheets acts as a physical intermediary that can either facilitate or block electromagnetic coupling, providing a hardware-based security layer that controls access to the chip without requiring additional active components.
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 solution enhances the security of data exchanges by ensuring that the integrated circuit can only function when the data support is in a verified geometrical configuration, preventing unauthorized reading and improving the overall security of the exchange process.
Implementation Method 1
coupling elements connected to said electronic circuit distributed between the first and second sheets and adapted to be electromagnetically coupled to an external reading station
Data Source
AI summary
The invention relates to a flexible data support, comprising a support with at least first and second sheets (11, 12A, 12B, 12C) which can pivot relative to each other about an axis (P) along the edges of said sheets and a contactless chip housed in said support and comprising an electronic circuit (IC) and coupling elements (A1, A2) connected to said electronic circuit distributed about the first and second sheets which may be electromagnetically coupled to an external reading station. The electronic circuit comprises an information exchange section for exchange of information with the exterior, characterised in that said support is provided with a test device for verification by means of signals emitted by the coupling elements of a geometrical condition of the angular configuration of the first and second sheets and to generate, as function of the result of said test, a signal authorizing or preventing the activation of the exchange section of the electronic circuit.