Terminal Signing Offload to User Devices for Contactless Transactions

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Solution Overview

Problem

Transaction terminals, such as POS devices, face challenges in disease transmission due to customer interaction and excessive resource consumption, necessitating frequent cleaning and downtime.

Innovation Solution

Offload transaction operations to user devices by identifying the associated user device and presenting a user-side interface for operations like signature entry or payment selection, reducing direct interaction with the terminal.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If customers interact directly with the terminal device for signing operations, then the terminal device can complete transactions, but disease transmission risk increases and cleaning frequency must increase

Engineering Contradiction:
Improvetransaction completionVSAvoiddisease transmission
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent introduces a user device (such as a smartphone) as an intermediary between the customer and the terminal device. The user device presents the user interface for signing operations, while the terminal device remains untouched by the customer. This intermediary approach allows transaction completion while eliminating direct contact with the terminal, thus preventing disease transmission.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent creates a copy of the terminal's user interface on the user device. Instead of requiring customers to interact with the terminal's display and input mechanisms, the same signing operation interface is replicated on the customer's personal device, allowing them to complete transactions without touching the terminal.

Inventive Principle:
Principle #26Copying

2Device complexity

If the terminal device handles all signing operations locally, then transaction processing is simple, but computing resources and battery consumption increase excessively

Engineering Contradiction:
Improvetransaction processingVSAvoidcomputing and battery resources
Core Design Contradiction:
Device complexityVSUse of energy by moving object

Solution Approach 1:

The patent extracts the resource-intensive user interface presentation and interaction handling from the terminal device and relocates it to the user device. The terminal device retains only the essential functions of initiating transactions and receiving results, while the computationally demanding tasks of displaying the signing interface and capturing user input are performed on the user's personal device with its own power supply.

Inventive Principle:
Principle #2Taking out (Extraction)

3Productivity

If the terminal device presents the user interface for signing operations, then the transaction flow is straightforward, but direct customer interaction requires frequent cleaning and causes downtime

Engineering Contradiction:
Improvetransaction efficiencyVSAvoidcleaning downtime
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

By introducing the user device as an intermediary that handles all customer interactions, the terminal device is freed from the need for frequent cleaning. The user device serves as the primary interface for customers, while the terminal device maintains transaction processing capabilities without requiring physical contact, thus eliminating cleaning downtime and maintaining high transaction efficiency.

Inventive Principle:
Principle #24Intermediary (Mediator)

Data Source

PatentUS20250252419A1Offloading a signing operation on a user device
Publication Date: 2025.08.07 CAPITAL ONE SERVICES LLC
  • US20250252419A1 patent drawing
  • US20250252419A1 patent drawing
  • US20250252419A1 patent drawing

AI summary

In some implementations, a terminal device may obtain exchange information associated with an exchange initiated at the terminal device. The exchange information may identify a medium used in the exchange. The terminal device may be configured to present a terminal-side user interface for performing a signing operation of the exchange. The terminal device may selectively obtain user information associated with the medium used in the exchange. The user information may identify a user device associated with the medium. The terminal device may transmit, to the user device and based on obtaining the user information, presentation information that identifies content for a user-side user interface for performing the signing operation at the user device. The terminal device may receive, from the user device, signing information associated with a performance of the signing operation at the user device via the user-side user interface.