Transceiver User Recognition via Body Signal

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Solution Overview

Problem

Existing user authentication methods for mobile devices require specific user actions, such as facial recognition, fingerprint scanning, or code input, which can be inconvenient and vulnerable to misuse.

Innovation Solution

A method utilizing a transceiver device to transmit a pulsed electromagnetic signal, which is retransmitted by the user's body and compared to a reference signal for user recognition, allowing authentication without specific user actions.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional authentication methods (facial recognition, fingerprint scanning, code input) are used, then user identification can be achieved, but the system requires specific user actions and is vulnerable to misuse

Engineering Contradiction:

Improveauthentication securityVSAvoiduser action requirement

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The system performs authentication automatically without requiring user actions. The transceiver device transmits electromagnetic signals that are retransmitted by the user's body, and the system automatically compares the retransmitted signal with reference signals to recognize the user, eliminating the need for manual fingerprint scanning, facial recognition, or code input

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces mechanical authentication methods (fingerprint scanning, facial recognition) with an electromagnetic field-based system. The transceiver device uses electromagnetic signals to interact with the user's body, detecting retransmitted signals that contain biometric information, thereby substituting physical contact-based authentication with wireless electromagnetic detection

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Measurement precision

If sensitive information (fingerprint, facial data) is collected for authentication, then user identification accuracy improves, but user reluctance increases due to security concerns

Engineering Contradiction:

Improveuser identification accuracyVSAvoiduser acceptance

Core Design Contradiction:

Measurement precisionVSAdaptability or versatility

Solution Approach 1:

The system uses electromagnetic signals as an intermediary to obtain biometric information without directly collecting sensitive personal data. The transceiver device transmits signals through the user's body and analyzes the retransmitted signals to extract biometric characteristics, avoiding direct storage of fingerprint images or facial data that users might be reluctant to provide

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent changes the parameter of data collection from direct storage of sensitive biometric data (fingerprint images, facial features) to storage of processed signal characteristics. The system analyzes electromagnetic signal parameters (amplitude, frequency, phase) that are derived from body characteristics but do not directly reveal sensitive personal information, thereby improving user acceptance while maintaining identification accuracy

Inventive Principle:

Principle #35Parameter changes

3Ease of operation

If automatic recognition without user actions is implemented, then ease of operation improves, but the system complexity increases

Engineering Contradiction:

Improveautomatic recognitionVSAvoidsignal processing complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The system extracts only the essential biometric information from the electromagnetic signals retransmitted by the user's body. The transceiver device focuses on detecting specific signal characteristics (amplitude, frequency, phase) that contain body-specific information, rather than processing the entire signal spectrum, thereby reducing computational complexity while maintaining automatic recognition capability

Inventive Principle:

Principle #2Taking out (Extraction)

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 method provides automatic and secure user recognition, eliminating the need for specific user actions and offering enhanced security through dynamic biometric characteristics.

Implementation Method 1

transmission of a pulsed electromagnetic signal

Methodology Applied

Scientific EffectElectromagnetic signal transmission: Electromagnetic Induction

Implementation Method 2

obtaining of a signal retransmitted when the user is in proximity to the device, said signal being dependent on the pulsed signal transmitted

Methodology Applied

Scientific EffectElectromagnetic wave propagation through biological tissue: Electromagnetic Propulsion

Data Source

PatentUS12224806B2Method and device for recognizing a user

Publication Date: 2025.02.11 ORANGE SA

AI summary

A method for recognising a user whose body is capable of re-transmitting an electromagnetic signal in the form of an electromagnetic wave. The method is implemented on a transceiver device and includes the following steps on the device: transmitting an electromagnetic pulse signal; obtaining a re-transmitted signal when the user is in the vicinity of the device, the signal depending on the transmitted pulse signal; comparing the re-transmitted signal with at least one reference signal of the user; and recognising the user if the re-transmitted signal is close to the reference signal.