Stylus Pen Authentication Interface for Differentiated Input Access

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Solution Overview

Problem

Existing electronic devices face challenges in securely and efficiently processing inputs from stylus pens, particularly in authenticating and managing multiple stylus pens for differentiated functionalities.

Innovation Solution

The electronic device incorporates a communication module, memory, and processor to receive identification information from a stylus pen, display an authentication screen, and provide content based on authentication, enabling secure and differentiated input management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If authentication is implemented for stylus pen input, then security is improved, but operation complexity increases

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

Solution Approach 1:

The system performs authentication in advance before allowing stylus pen input operations. The authentication screen is displayed and verified before the actual content input or modification can occur, ensuring security is established prior to operation.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

An authentication screen acts as an intermediary layer between the stylus pen input and the actual content processing. This intermediary requires verification of authentication information before allowing the stylus pen to interact with protected content, thus enhancing security without directly complicating the core input operation.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If multiple stylus pens are supported with differentiated functionalities, then versatility is improved, but device complexity increases

Engineering Contradiction:
ImproveversatilityVSAvoiddevice complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The system segments stylus pen management by assigning unique identification information to each stylus pen. Each pen can be associated with different authentication levels or user profiles, allowing differentiated functionalities while maintaining individualized control and simplifying the overall management structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The electronic device is designed to universally support multiple stylus pens with the same basic interface and communication protocol. The authentication mechanism and identification system provide a universal framework that accommodates various pen types and user scenarios without requiring separate complex systems for each pen.

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

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 approach enhances security and efficiency in processing stylus pen inputs by authenticating and managing multiple pens, allowing for differentiated content provision based on authentication.

Implementation Method 1

The electronic device may detect magnetic fields produced from the stylus pen using electro magnetic resonance (hereinafter, referred to as EMR)

Methodology Applied
Scientific EffectElectromagnetic resonance (EMR): Resonance

Implementation Method 2

An electronic device may identify the position of a stylus pen based on an electromotive force generated by a magnetic field per channel

Methodology Applied
Scientific EffectElectromagnetic induction: Electromagnetic Induction

Implementation Method 3

The stylus pen may be connected with the electronic device via short-range communication (e.g., Bluetooth low energy (BLE))

Methodology Applied
Scientific EffectShort-range communication (Bluetooth low energy):

Data Source

PatentEP4679247A1Electronic device for processing input of stylus pen, and operating method thereof
Publication Date: 2026.01.14 SAMSUNG ELECTRONICS CO LTD
  • EP4679247A1 patent drawingFigure 1
  • EP4679247A1 patent drawingFigure 2
  • EP4679247A1 patent drawingFigure 3

AI summary

According to an embodiment, an electronic device includes a communication module, a memory, a display, and at least one processor electrically connected to the communication module, the memory, and the display, wherein the at least one processor may: receive, from a stylus pen through the communication module, identification information related to the stylus pen; in response to a first input of the stylus pen, display an authentication screen for authenticating the stylus pen on the basis of authentication information that corresponds to the identification information and is stored in the memory; receive a second input of the stylus pen through the authentication screen; and on the basis that authentication is satisfied on the basis of the authentication information and the second input, provide content corresponding to the authentication information.