Voice Print Recognition for Fraudulent Transaction Verification

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Solution Overview

Problem

Current fraud detection systems often incorrectly flag legitimate transactions as fraudulent, leading to frustration for users and high labor costs due to cumbersome verification processes, such as manual calls, which are inefficient and costly.

Innovation Solution

Implementing a voice-related processing system that uses voice print recognition to verify transactions identified as potentially fraudulent, allowing users to authenticate through a mobile device by comparing a candidate voice print to a stored user voice print, thereby determining whether to approve or deny the transaction.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If traditional fraud detection systems are used to identify potentially fraudulent transactions, then transaction security is improved, but false positive rate increases and user experience deteriorates

Engineering Contradiction:
Improvetransaction securityVSAvoidfalse positive rate
Core Design Contradiction:
ReliabilityVSMeasurement precision

Solution Approach 1:

The patent replaces manual verification processes (call center agents physically calling users) with automated voice biometric technology. The system captures voiceprints during transactions and compares them against stored voice profiles, substituting human labor with acoustic field-based automated recognition. This resolves the contradiction by maintaining security through automated verification while eliminating false positives caused by manual intervention delays and errors.

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

Solution Approach 2:

The system performs preliminary voiceprint capture and storage during initial transactions before fraud detection is needed. When a transaction is flagged as potentially fraudulent, the pre-stored voiceprint is immediately available for comparison, enabling rapid verification. This preliminary action resolves the contradiction by providing both security (through pre-established voice profiles) and precision (through immediate comparison without manual intervention).

Inventive Principle:
Principle #10Preliminary action

2Reliability

If manual verification methods are used to confirm transactions, then transaction authenticity is improved, but labor costs and processing time increase

Engineering Contradiction:
Improvetransaction authenticityVSAvoidverification efficiency
Core Design Contradiction:
ReliabilityVSProductivity

Solution Approach 1:

The patent substitutes manual verification operations with automated voice biometric processing. Instead of call center agents manually confirming transactions, the system automatically captures, processes, and compares voiceprints using acoustic recognition algorithms. This substitution maintains transaction authenticity through reliable biometric verification while dramatically improving productivity by eliminating manual labor and reducing processing time to seconds.

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

Solution Approach 2:

The system enables self-service verification where the user's own voiceprint serves as the authentication mechanism. During a flagged transaction, the user simply speaks into the device, and the system automatically verifies their identity by comparing the live voiceprint against the stored profile. This self-service approach maintains authenticity through biometric verification while achieving high productivity through automated processing without human intervention.

Inventive Principle:
Principle #25Self-service

3Speed

If voice print recognition is implemented for transaction verification, then verification speed is improved, but system complexity increases

Engineering Contradiction:
Improveverification speedVSAvoidsystem complexity
Core Design Contradiction:
SpeedVSDevice complexity

Solution Approach 1:

The patent implements a universal voiceprint recognition system that serves multiple functions: initial user registration, ongoing transaction verification, and fraud detection. The same voice capture and comparison infrastructure is used across all these scenarios, achieving high verification speed through a unified system while managing complexity through multi-functionality rather than separate specialized systems for each function.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system performs preliminary voiceprint capture and profile creation during initial setup and subsequent legitimate transactions. This preliminary action establishes the biometric baseline before fraud detection is needed, enabling rapid verification when required. By preparing the voiceprint data in advance, the system achieves high verification speed while managing complexity through pre-processing rather than real-time complex analysis during critical verification moments.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentUS11625722B2Systems and methods for authenticating potentially fraudulent transactions using voice print recognition
Publication Date: 2023.04.11 CAPITAL ONE SERVICES LLC
  • US11625722B2 patent drawing
  • US11625722B2 patent drawing
  • US11625722B2 patent drawing

AI summary

Methods and systems are disclosed for providing fraudulent transaction processes. In one embodiment, a method is disclosed for performing fraudulent transaction processes that may include receiving an indication that a payment transaction has been identified as potentially fraudulent, the payment transaction involving a payment account associated with a user. The method may also include receiving a candidate voice print and comparing the candidate voice print to a user voice print that is associated with the payment account. The method may further include determining, based on the comparison, whether the candidate voice print matches the user voice print, and providing an indication whether the candidate voice print matches the user voice print, the indication configured for use to determine whether to approve or deny the payment transaction.