IC Card Electromagnetic Inhibiting Element for Secure Wireless Communication

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Solution Overview

Problem

Existing integrated circuit (IC) cards face challenges in protecting wireless communications from remote interceptions and ensuring data security during transmission and transport, with prior solutions being cumbersome or inefficient.

Innovation Solution

A security system comprising an integrated circuit with an antenna and an electromagnetic inhibiting element, which can be temporarily deactivated using a coupling element with an electromagnetic extension to allow secure communication with a transceiver/transponder circuit, incorporating interfering or shielding elements to prevent illegitimate data access.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If an electromagnetic inhibiting element is added to protect IC card data from unauthorized access, then data security is improved, but device complexity increases

Engineering Contradiction:
Improvedata securityVSAvoiddevice complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The electromagnetic inhibiting element is integrated within the IC card structure, nested alongside the integrated circuit and antenna. This nesting approach allows the security function to be embedded in the existing device architecture without requiring a completely separate external system, thereby improving data security while limiting the increase in overall device complexity.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The electromagnetic inhibiting element acts as an intermediary between the antenna and the external environment. It mediates electromagnetic interactions by creating interference that blocks unauthorized access to the IC card data, while allowing legitimate communications to pass through when properly activated, thus improving security without requiring complex authentication mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a coupling element with electromagnetic extension is used to temporarily deactivate the inhibiting element for communication, then secure wireless communication capability is improved, but device complexity increases

Engineering Contradiction:
Improvesecure wireless communication capabilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The electromagnetic inhibiting element is designed to be dynamically controllable through the coupling element. The system transitions from a static security mechanism to a dynamic one that can switch between inhibiting (security mode) and non-inhibiting (communication mode) states. This dynamic control enables secure wireless communication capability while managing device complexity through temporal separation of functions.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The coupling element activates the electromagnetic extension periodically or temporarily to deactivate the inhibiting element only when communication is needed. This periodic activation pattern allows the system to maintain security most of the time while enabling communication at specific intervals, improving adaptability without requiring the complex security mechanism to be continuously active.

Inventive Principle:
Principle #19Periodic action

3Reliability

If electromagnetic interference is created to prevent illegitimate data access, then data protection is improved, but communication efficiency may deteriorate

Engineering Contradiction:
Improvedata protectionVSAvoidcommunication efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The electromagnetic inhibiting element creates localized electromagnetic interference in specific regions around the antenna, rather than blocking all electromagnetic communications globally. This local quality approach allows the interference to be concentrated where needed (around the IC card antenna) while maintaining communication efficiency in other areas, thus improving data protection without excessively impacting overall communication efficiency.

Inventive Principle:
Principle #3Local quality

Solution Approach 2:

The system maintains continuous electromagnetic field presence through the antenna, and the inhibiting element operates continuously to provide protection. The coupling element temporarily modifies this continuous action only when communication is required. This continuity of useful action ensures data protection is always active while minimizing disruptions to communication efficiency during authorized transmission periods.

Inventive Principle:
Principle #20Continuity of useful action

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 system effectively protects IC card data from unauthorized access by creating electromagnetic interference, ensuring secure wireless communications while maintaining a compact and easy-to-manufacture design.

Implementation Method 1

The system effectively protects IC card data from unauthorized access by creating electromagnetic interference

Methodology Applied
Scientific EffectElectromagnetic interference: Interference

Implementation Method 2

The electromagnetic transmission between the integrated circuit and the transceiver/transponder circuit is obtained through at least two antennas

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Data Source

PatentUS8976010B2Security system for at least an integrated circuit, secure integrated circuit card, and method of secure wireless communications
Publication Date: 2015.03.10 STMICROELECTRONICS SRL
  • US8976010B2 patent drawing
  • US8976010B2 patent drawing
  • US8976010B2 patent drawing

AI summary

A security system includes an integrated circuit and a transceiver/transponder circuit. The integrated circuit includes an antenna for communicating with the transceiver/transponder circuit. An inhibiting element is associated with the integrated circuit for inhibiting communications with the transceiver/transponder circuit and for securing the data contained in the integrated circuit. The inhibiting element is an electromagnetic inhibiting element. The security system further includes a coupling element associated with the antenna of the integrated circuit for temporarily deactivating the electromagnetic inhibiting element to allow communications between the integrated circuit and the transceiver/transponder circuit.