Biometric Payment Processing via Movement Speed Threshold

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Solution Overview

Problem

Contactless biometric payments face challenges in accurately recognizing payment intentions due to the lack of a signal, such as electrical contact, to confirm payment intentions.

Innovation Solution

A biometric payment processing method and apparatus that utilize image data from successive images of an organism to detect a target part, determine its movement speed, and perform a payment operation only when the movement speed is less than a specified threshold, indicating a definite payment intention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If contactless payment is used, then device screen responsiveness and cleanliness issues are resolved, but payment intention recognition accuracy deteriorates

Engineering Contradiction:
Improvedevice screen responsivenessVSAvoidpayment intention recognition accuracy
Core Design Contradiction:
Ease of operationVSMeasurement precision

Solution Approach 1:

The patent introduces an intermediary signal (electrical signal generated by finger contact) to mediate between the user's payment intention and the payment terminal. This electrical signal serves as a reliable indicator of payment intention, resolving the ambiguity in contactless payment scenarios where no such signal exists.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent replaces the mechanical contact-based payment verification system with an electrical signal detection system. By detecting electrical signals generated during finger contact, the system achieves more accurate payment intention recognition compared to traditional contactless methods.

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

2Measurement precision

If contact payment is used, then payment intention can be confirmed through electrical contact signal, but device screen cleanliness and responsiveness deteriorate due to public operations

Engineering Contradiction:
Improvepayment intention recognition accuracyVSAvoiddevice screen cleanliness
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent extracts the essential verification element (electrical contact signal detection) from the contact payment method and separates it from the problematic components (screen interaction). This allows payment intention verification to occur through contactless means while maintaining the accuracy benefits of electrical signal detection.

Inventive Principle:
Principle #2Taking out (Extraction)

3Ease of operation

If contactless payment is used, then operation convenience is improved, but security deteriorates due to misrecognition of payment intention

Engineering Contradiction:
Improveoperation convenienceVSAvoidpayment security
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent introduces an intermediary electrical signal as a mediator to verify payment intention in contactless payment scenarios. This signal serves as a reliable indicator that distinguishes intentional payment actions from accidental or unauthorized contact, thereby enhancing security while maintaining convenience.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent implements a feedback mechanism where the detection of electrical signals during contactless payment provides confirmation of payment intention. This feedback loop ensures that payments are only processed when genuine payment intent is detected, improving security without compromising user convenience.

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250053980A1Biometric payment processing method and apparatus, electronic device, and computer-readable storage medium
Publication Date: 2025.02.13 TENCENT TECHNOLOGY (SHENZHEN) CO LTD
  • US20250053980A1 patent drawing
  • US20250053980A1 patent drawing
  • US20250053980A1 patent drawing

AI summary

A biometric payment processing method includes: obtaining image data, the image data comprising a plurality of images of an organism that are successively acquired; detecting a target part in an image in the image data, the target part being a part to which a biometric payment function is bound in the organism; determining, in response to that the target part is detected from the plurality of images, a movement speed corresponding to the target part in the plurality of images; and performing a payment operation based on the target part in response to that the movement speed is less than a speed threshold.