RFID Chip Reading Process Inhibitor for Unauthorized Access Prevention
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Solution Overview
Problem
RFID chip devices face security concerns such as wireless identity theft and RFID skimming due to automatic response to unintended readers, and conventional solutions like RFID blocking sleeves are inconvenient for users.
Innovation Solution
An RFID chip device with a reading process inhibitor that includes a touch point, which, when operated by the user, activates an electric field to interrupt or interfere with the RFID signal transmission to the reader, ensuring the device can only be read with user consent, using a combination of charging coils and inhibitor circuits to control signal emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the RFID chip device automatically responds to readers, then the device is convenient for use, but security risks increase due to unauthorized reading
Solution Approach 1:
The patent applies preliminary action by activating the inhibitor circuit before the RFID chip can be read. When the device enters a reader's range, the inhibitor circuit is activated first to block unauthorized reading. The user must then perform a touch operation to deactivate the inhibitor and enable legitimate reading, thus preparing the security mechanism in advance while maintaining convenience for authorized use.
Solution Approach 2:
The inhibitor circuit serves as an intermediary between the RFID chip and external readers. It mediates the interaction by blocking signals from unauthorized readers while allowing authorized reading after user confirmation. This intermediary layer resolves the contradiction by filtering harmful interactions while preserving necessary communication.
2Object-affected harmful factors
If a protector is used to isolate the RFID chip device, then security is improved, but ease of operation deteriorates due to the need to remove the protector
Solution Approach 1:
The patent extracts the security function from the physical protector (RFID blocking sleeve) and integrates it directly into the RFID chip device through the inhibitor circuit. This eliminates the need for separate protective accessories while maintaining security, as the inhibitor circuit provides the same isolation function internally without requiring external removal or attachment.
Solution Approach 2:
The security function previously provided by external protectors is merged with the RFID chip device itself. The inhibitor circuit is integrated into the device architecture, combining the RFID functionality and security protection into a single unified system, thereby eliminating the need for separate protectors and improving ease of operation.
3Object-affected harmful factors
If the reading process inhibitor is activated early, then security is improved by blocking unauthorized reading, but the device complexity increases
Solution Approach 1:
The inhibitor circuit performs multiple functions: it blocks unauthorized RFID signals, detects user touch operations through the touch point, and controls the activation/deactivation of the RFID chip. By consolidating these security and control functions into a single circuit, the patent avoids the need for separate complex security mechanisms while effectively preventing unauthorized reading.
4Productivity
If the RFID chip transmits signals automatically, then productivity is improved, but the risk of identity theft increases
Solution Approach 1:
The patent applies dynamics by making the RFID signal transmission dynamic rather than static. The inhibitor circuit dynamically controls the RFID chip's transmission state based on user touch operations. When the device enters a reader's range, transmission is automatically blocked until the user touches the touch point, at which point transmission is enabled. This dynamic control maintains productivity for authorized transactions while preventing identity theft during unauthorized approaches.
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 and reduces the risk of identity theft and credit card fraud by requiring user intervention to enable RFID signal transmission, enhancing security and user control.
Implementation Method 1
The charging coil is configured to generate electricity that is induced by the electromagnetic field generated by the RFID reader
Implementation Method 2
The reading process inhibitor is configured to establish an electric field at the touch point, and to, when the electric field thus established is varied due to operation performed upon the touch point by the user
Data Source
AI summary
A Radio Frequency Identification (RFID) chip device includes a carrier, and an RFID chip and a reading process inhibitor disposed on the carrier. The RFID chip is charged by a reader and transmits, when activated, an RFID signal to the reader. The reading process inhibitor includes a touch point arranged on a surface of the carrier. Charged by the reader, the reading process inhibitor is activated not later than activation of the RFID chip so as to emit an RFID disturbing signal for interfering with the RFID signal. The reading process inhibitor stops emitting the RFID disturbing signal when an electric field established thereby at the touch point is varied due to operation performed upon the touch point by the user.