IC Card Sensor Abnormality Detection and Authentication List Update

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Solution Overview

Problem

Conventional portable electronic devices, such as IC cards, fail to perform authentication processes when there is an abnormality in the sensor, leading to disruptions in user authentication.

Innovation Solution

The IC card system includes a processor that determines sensor abnormalities and updates an authentication list to switch to alternative authentication methods, ensuring continuous authentication processes even if the primary sensor fails.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the IC card uses a sensor for authentication, then authentication security is improved, but authentication reliability deteriorates when sensor abnormality occurs

Engineering Contradiction:

Improveauthentication reliabilityVSAvoidauthentication method adaptability

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The authentication list is dynamically updated based on sensor abnormality detection results. The processor automatically adjusts the authentication method sequence, moving alternative methods (password, pattern, iris, face recognition) from lower priority to higher priority positions when sensor failure is detected, enabling the system to adapt to changing operational conditions

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

Multiple authentication methods are pre-configured in the authentication list before sensor failure occurs. The system prepares alternative authentication paths in advance (password, pattern, iris, face recognition), so when sensor abnormality is detected, the transition to alternative methods is immediate and seamless without requiring user reconfiguration

Inventive Principle:

Principle #10Preliminary action

2Reliability

If the IC card relies on a single authentication method, then device complexity is reduced, but authentication reliability deteriorates when that method fails

Engineering Contradiction:

Improveauthentication reliabilityVSAvoidauthentication system complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The IC card incorporates multiple authentication functionalities within a single device, supporting both sensor-based authentication (fingerprint, iris, face recognition) and traditional authentication methods (password, pattern). The processor selectively activates appropriate authentication methods based on sensor status, making the single IC card universally capable of handling various authentication scenarios without requiring additional external devices

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

Multiple authentication methods are merged into a unified authentication system managed by a single processor. The authentication list integrates different authentication types (sensor-based and non-sensor-based) into one coordinated framework, allowing the system to combine resources and switch between methods seamlessly, reducing the need for separate authentication systems

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentEP3657368B1IC card, portable electronic device, IC card processing method and program

Publication Date: 2023.07.26 KK TOSHIBA

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AI summary

According to an embodiment, an IC card comprises a sensor, a storage, and a processor. The sensor obtains information for authentication. The storage stores an authentication list showing one or more authentication methods which use information from the sensor. The processor determines whether if there is an abnormality exists in the sensor. If it determines that the sensor is indeed abnormal, it updates the authentication list accordingly.