NFC Contact Chip Reader Bridge for Software-Free Contact Transactions
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
User devices capable of contactless interactions, such as NFC-enabled smartphones, are limited in functionality as they cannot perform contact transactions without additional software installations, which can lead to hardware and software compatibility issues.
Innovation Solution
A bridge apparatus with an NFC antenna, conversion circuit, and contact interface is used to enable communication between a user device and a portable device, converting between contactless and contact protocols to facilitate contact transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a user device is equipped with NFC capability for contactless transactions, then convenience and efficiency are improved, but the ability to perform contact transactions is lost
Solution Approach 1:
The user device is designed to support both contactless and contact transaction modes through a unified interface. The system can automatically detect the transaction type (contactless or contact) and switch between NFC-based contactless communication and physical connector-based contact communication, making the device universal for both transaction types without requiring separate dedicated hardware for each mode.
Solution Approach 2:
A protocol conversion module acts as an intermediary between the NFC controller and the contact interface controller. This mediator converts contactless protocol commands into contact protocol commands, enabling the user device to communicate with contact-based portable devices through the contact interface while maintaining the existing NFC architecture, thus adding contact capability without disrupting the contactless functionality.
2Adaptability or versatility
If additional software is installed to enable contact transactions on NFC devices, then contact transaction capability is improved, but hardware and software compatibility issues arise
Solution Approach 1:
The protocol conversion module serves as a reliable intermediary that handles all protocol translation between contactless and contact modes. By centralizing the conversion logic in dedicated hardware/firmware rather than relying on complex software installations, the system ensures consistent and reliable compatibility across different portable devices without the fragility of software-based solutions.
Solution Approach 2:
The invention replaces software-based contact transaction enablement with a hardware-level protocol conversion mechanism. Instead of installing additional software layers that may have compatibility issues, the system uses a dedicated conversion module that operates at the protocol level, providing more reliable and consistent contact transaction support across different device types.
3Adaptability or versatility
If a bridge apparatus is introduced to enable contact transactions, then contact transaction capability is improved, but device complexity increases
Solution Approach 1:
The bridge apparatus functionality is merged into the existing user device architecture by integrating the protocol conversion module within the device's existing communication subsystem. Rather than adding a separate external bridge device, the conversion capability is incorporated into the device itself, combining multiple functions (NFC processing, contact processing, and protocol conversion) into a unified system that reduces overall complexity.
Solution Approach 2:
The user device is designed as a universal platform that handles both contactless and contact transactions through a single integrated system. The device's communication interface can operate in multiple modes (NFC contactless mode and physical connector contact mode), eliminating the need for separate dedicated devices for each transaction type and simplifying the overall system architecture.
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 NFC-enabled devices to perform contact transactions without additional software, providing a reliable backup for scenarios requiring contact interactions and avoiding compatibility issues.
Implementation Method 1
transmitting, by a first antenna of the bridge apparatus, a wireless signal comprising a contact protocol indicator to a second antenna of a user device
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A method is disclosed and includes communicating, by a bridge apparatus comprising a controller via a contact interface in the bridge apparatus, with a portable device. The method also includes transmitting, by a first antenna of the bridge apparatus, a wireless signal comprising a contact protocol indicator to a second antenna of a user device. The method also includes receiving, by the bridge apparatus via the first antenna, a contact command in a contactless protocol. The method also includes converting, by the controller in the bridge apparatus, the contact command to a contact protocol. The method also includes providing, by the controller in the bridge apparatus, the contact command in the contact protocol to the portable device via the contact interface.