Electronic Pen Color Authentication for Secure Access

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Solution Overview

Problem

Conventional authentication systems face challenges in providing secure and convenient access to portable devices, as password-based methods are cumbersome and biological authentication methods require specialized devices, increasing cost and inconvenience.

Innovation Solution

An authentication system using an electronic pen that picks up color or image information from a surface and transmits it to an electronic apparatus for comparison with stored reference information, allowing secure access by simply pressing the pen against a colored area.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a password code with many digits and mixed characters is used, then security is improved, but operation becomes troublesome and users may forget the password

Engineering Contradiction:
ImprovesecurityVSAvoidoperation convenience
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The patent uses color information as authentication data instead of complex password codes. The pickup unit captures color information from a specific area, and this color data is used for authentication. This approach maintains security through unique color patterns while greatly simplifying user operation, as users only need to press the pen against a colored area rather than memorize and input long passwords.

Inventive Principle:
Principle #32Color changes

2Ease of operation

If biological information such as fingerprints or irises is used for authentication, then operation becomes easier and password memorization is eliminated, but specialized devices are needed, increasing system scale, processing load, and cost

Engineering Contradiction:
Improveoperation convenienceVSAvoidsystem complexity
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The electronic pen serves multiple functions: it acts as both a position input device for touch screens and an authentication device with color pickup capability. By integrating the pickup unit into the electronic pen, the system eliminates the need for separate specialized authentication devices, reducing system complexity while maintaining ease of operation through simple color-based authentication.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Reliability

If biological information authentication is used, then only the registered person can access the system, but this also means no other person can use the PC or portable apparatus, causing inconvenience

Engineering Contradiction:
ImprovesecurityVSAvoidflexibility
Core Design Contradiction:
ReliabilityVSAdaptability or versatility

Solution Approach 1:

The system uses color information as authentication data, which can be flexibly assigned and changed. Unlike fixed biological characteristics, color authentication patterns can be reassigned to different users or purposes, providing both security through unique color identification and flexibility in access management. The color information stored in the electronic apparatus can be configured to allow appropriate access control while maintaining versatility.

Inventive Principle:
Principle #32Color changes

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 provides a secure and user-friendly authentication method that is easy to operate, reducing the risk of forgotten passwords and eliminating the need for specialized devices, while maintaining robust security through color or image matching.

Implementation Method 1

The pickup unit picks up color information or image information of a part when a first portion of the electronic pen is pressed against the part

Methodology Applied
Scientific EffectOptical reflection: Reflection

Data Source

PatentUS11416597B2Authentication system and electronic pen
Publication Date: 2022.08.16 WACOM CO LTD
  • US11416597B2 patent drawing
  • US11416597B2 patent drawing
  • US11416597B2 patent drawing

AI summary

An authentication system includes an electronic pen and an electronic apparatus. The electronic pen includes: a pickup unit in a first end portion configured to pick up color or image information of a part when the first end portion is pressed against the part; and a transmitter configured to transmit the picked-up color or image information to the electronic apparatus. The electronic apparatus includes: a receiver configured to receive the color or image information transmitted from the electronic pen; an authentication reference information storage device configured to store color or image authentication reference information; an authentication success or failure determining circuit configured to determine a success or a failure of authentication by comparing the color or image information with the color or image authentication reference information; and a control circuit configured to remove security protection of an authentication target when it is determined that the authentication succeeds.