NFC Tag Authentication for Automatic Communication Initiation

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Solution Overview

Problem

Users often ignore QR codes due to the complexity of scanning them, requiring users to manually launch an application, align the camera, and input contact information to access additional information.

Innovation Solution

A method and system utilizing short-range wireless communication, such as NFC, to receive and authenticate messages from NFC tags, automatically initiating communications with remote devices based on contact information and location data, eliminating the need for manual scanning and inputting of QR codes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of information

If QR codes are used for information delivery, then information can be accessed digitally, but user interaction complexity increases requiring manual scanning steps

Engineering Contradiction:
Improveinformation deliveryVSAvoiduser interaction complexity
Core Design Contradiction:
Loss of informationVSEase of operation

Solution Approach 1:

The patent replaces the optical-mechanical QR code scanning system with a magnetic field-based NFC system. Instead of using camera optics and image processing to read QR codes, the invention uses magnetic fields generated by the computing device to induce currents in NFC tags, enabling direct wireless data transfer without manual scanning actions.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent introduces NFC tags as intermediary carriers that store information and enable wireless communication. These tags act as mediators between the computing device and the information source, allowing automatic data exchange without requiring users to manually scan QR codes or type information.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If manual QR code scanning is required, then information security can be maintained through user control, but time consumption increases due to multiple scanning steps

Engineering Contradiction:
Improveinformation securityVSAvoidtime consumption
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The patent implements preliminary authentication mechanisms where the computing device verifies the legitimacy of NFC tags before data transfer. The system pre-establishes security protocols and automatically authenticates tags, eliminating the need for manual verification steps while maintaining security standards.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent enables the system to automatically perform authentication and data transfer operations without user intervention. The computing device self-manages the entire process of tag detection, authentication, and information retrieval, reducing both time consumption and manual effort while maintaining security through automated protocols.

Inventive Principle:
Principle #25Self-service

3Ease of operation

If contact information is pre-collected for automatic communication, then communication initiation is simplified, but device complexity increases requiring additional communication protocols

Engineering Contradiction:
Improvecommunication initiationVSAvoidcommunication protocol requirements
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The patent makes the computing device's communication system universal by integrating multiple communication capabilities (NFC, wireless messaging, telephony) into a single platform. The device can automatically switch between different communication protocols based on the information received from NFC tags, eliminating the need for separate specialized systems while maintaining ease of operation.

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

Enables seamless and user-friendly communication initiation by automatically processing NFC tag data, allowing for effortless access to information without the need for manual QR code scanning, enhancing user experience and simplifying interactions with advertising materials.

Implementation Method 1

receiving, by a computing device via short-range wireless communication, a message from a short-range wireless device

Methodology Applied
Scientific EffectNear Field Communication (NFC): Electromagnetic Induction

Data Source

PatentUS8363086B1Initiating communications using short-range wireless communications
Publication Date: 2013.01.29 GOOGLE LLC
  • US8363086B1 patent drawing
  • US8363086B1 patent drawing
  • US8363086B1 patent drawing

AI summary

In general, aspects of this disclosure are directed to techniques for initiating communications from a computing device based on messages received from short-range wireless devices. The computing device may receive, via short-range wireless communication, a message from a short-range communication device, the message including contact information of a remote computing device that is external both to the computing device and to the short-range communication device, location information associated with the short-range communication device, and authentication information usable by the computing device to authenticate the short-range communication device. Responsive to receiving the message from the short-range communication device, the computing device may authenticate the short-range communication device based on the authentication information. Responsive to the authenticating, the computing device may automatically initiate communications with the remote computing device based on the contact information. Computing device may communicate the location information associated with the short-range communication device to the remote computing device.