Braille Payment System for Visually Impaired Users

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Solution Overview

Problem

Visually impaired individuals face challenges in using modern electronic devices for transactions due to their visual nature, making it difficult to navigate and complete electronic payments.

Innovation Solution

A system that registers a visually impaired user's payment device, assigns a braille code, and uses a dual-channel communication method to authorize transactions, allowing the user to input the braille code on a portable computing device and receive a verification code via voice, facilitating secure and accessible electronic payments.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If visual-based electronic payment systems are used, then transaction security and accuracy are improved, but accessibility for visually impaired users deteriorates

Engineering Contradiction:

Improvetransaction securityVSAvoidaccessibility for visually impaired users

Core Design Contradiction:

ReliabilityVSEase of operation

Solution Approach 1:

The patent introduces braille input devices and audio output devices as intermediaries between visually impaired users and the electronic payment system. The braille display converts digital information into tactile braille characters, while audio feedback provides verbal confirmation of transaction details, enabling secure transactions without visual dependence

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces visual display mechanisms with tactile and auditory feedback mechanisms. Instead of relying on visual screens and graphical interfaces, the system uses braille display devices that provide tactile feedback and audio output devices that provide spoken feedback, substituting the visual sense with other sensory modalities

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Ease of operation

If braille input devices are integrated into payment systems, then accessibility for visually impaired users is improved, but device complexity increases

Engineering Contradiction:

Improveaccessibility for visually impaired usersVSAvoidsystem complexity

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The patent designs payment terminals and portable computing devices that serve multiple functions: they can process payments from both visually impaired and sighted users, provide braille input capabilities, offer audio feedback, and maintain standard visual interfaces. This multi-functionality reduces the need for separate specialized devices

Inventive Principle:

Principle #6Universality (Multi-functionality)

Solution Approach 2:

The patent combines braille input capabilities, audio output capabilities, and standard payment processing functions into integrated payment terminals and portable devices. The braille display and audio feedback systems are merged with the existing payment interface, creating a unified system that handles multiple user needs through a single device

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11017394B2System for vision impaired users to execute electronic transactions

Publication Date: 2021.05.25 VISA INTERNATIONAL SERVICE ASSOCIATION

AI summary

A method of enabling an electronic payment for a visually impaired user may be disclosed. The visually impaired user may proceed to use the payment device and enter the braille code which may be communicated to an authority using a first channel to begin a transaction. The system may communicate a verification code to the portable computing device using a second communication channel. The user may enter the verification code which may be communicated to an authority via the first communication channel.