RFID Shielding in Cellular Phones for Secure Transactions
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Solution Overview
Problem
RFID tags in electronic devices such as passports and credit cards can be read without consent, leading to security concerns like identity theft, as existing technologies lack effective shielding to prevent unauthorized access to the information stored in these tags.
Innovation Solution
Incorporating radio frequency shielding materials into containers and devices that house RFID tags, allowing the tags to be shielded from detection when closed and readable only when intentionally exposed, using materials like metal-coated elastomers and conductive plastics, and employing switchable RFID tags with remotely controlled switches to manage data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If RFID tags are made readable and accessible in electronic devices, then convenience and functionality are improved, but security and privacy are worsened due to unauthorized reading
Solution Approach 1:
The patent applies preliminary anti-action by incorporating shielding materials into the device housing that are positioned to block RFID signals by default. The shielding is pre-configured to prevent unauthorized reading before any access attempt occurs, and only moves away from the RFID tag when intentional user action (such as opening a compartment or pressing a button) triggers its repositioning.
2Reliability
If shielding materials are added to block RFID signals, then security is improved, but device complexity and manufacturing difficulty are worsened
Solution Approach 1:
The patent employs flexible shielding materials such as conductive fabrics, metal-coated elastomers, or thin metallic films that can be integrated into device housings or compartments. These flexible shielding elements can be positioned to block signals when needed and moved or reconfigured when access is required, providing security without requiring complex rigid structures or multiple discrete 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
The solution effectively prevents unauthorized reading of RFID tags by reducing signal power and attenuating signals, ensuring that the tags can only be read when intentionally exposed, thereby enhancing security and privacy of the information stored on these devices.
Implementation Method 1
Incorporating radio frequency shielding materials into containers and devices that house RFID tags, allowing the tags to be shielded from detection when closed
Data Source
AI summary
Various switchable devices, e.g., cellular telephones, including inductive antennas are disclosed. These switchable devices may include one or more switches and a biometric sensor. Some of these one or more switches are optionally wireless and/or manual. In various embodiments, the switchable devices include are included within cellular phones, security devices, identity devices, financial devices, remote controls, and the like. The switchable devices are optionally configured to perform financial transactions.