Portable TOTP Device with Conductive Strap for Location Authentication

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Solution Overview

Problem

Existing TOTP devices lack the ability to authenticate a user's location and require a fixed installation, limiting their portability and security features.

Innovation Solution

A portable electronic device with a power source, processor, and strap forming an external loop for continuous electrical connection, generating time-based one-time passwords (TOTPs) for location authentication, which can be affixed to a permanent object and displays the OTP as a bar code or numerical code.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If TOTP devices are made portable, then ease of operation is improved, but reliability is worsened due to inability to ensure fixed installation

Engineering Contradiction:

ImproveportabilityVSAvoidfixed installation assurance

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

A strap with conductive material serves as an intermediary between the TOTP device and the fixed surface. The strap creates an electrical circuit that must be completed when the device is properly mounted, providing a mediator that enables portability while ensuring reliable fixed installation through electrical continuity verification

Inventive Principle:

Principle #24Intermediary (Mediator)

2Reliability

If TOTP devices require fixed installation, then reliability is improved, but ease of operation is worsened due to reduced portability

Engineering Contradiction:

Improvefixed installation assuranceVSAvoidportability

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The mounting system transitions from a static fixed installation to a dynamic system where the device can be temporarily mounted and removed. The strap-based electrical circuit provides dynamic connectivity that maintains reliability during mounted operation while enabling portability when unmounted

Inventive Principle:

Principle #15Dynamics

3Reliability

If continuous electrical connection is required for operation, then reliability is improved, but device complexity is worsened due to additional connection requirements

Engineering Contradiction:

Improvecontinuous operationVSAvoidconnection structure

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

A flexible strap with conductive material replaces complex rigid electrical connection structures. The thin-film conductive path in the strap provides the necessary electrical continuity for reliable operation while maintaining simplicity and flexibility in the connection structure

Inventive Principle:

Principle #30Flexible shells and thin films

Data Source

PatentUS11799848B2Systems and methods for one-time password authentication

Publication Date: 2023.10.24 DATALOGIC SOFTWARE INC

AI summary

In an aspect, the present disclosure provides an electronic device for OTP authentication of a present location, comprising: a power source, a processor, and a memory in a housing; a strap comprising first and second ends, and a first wire extending from the first end to the second end of the strap and forming an external loop, wherein the first wire establishes a first electrical connection between the power source and the processor; and a second electrical connection operatively connected to the processor and the memory, the processor configured to generate an OTP, only when the processor is connected to the power source by the first electrical connection without interruption once the first electrical connection is established. The OTP authentication may be time-based one-time password (TOTP) authentication, and the generated OTP may be a time-based one-time password (TOTP).