ATM Cheque Deposit Thickness Detection and Authentication

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Solution Overview

Problem

Existing ATMs face challenges in accurately and reliably detecting multiple cheque leaves during depositing transactions, leading to potential errors and inefficiencies in processing, which requires a solution to ensure accurate processing and reduce manual errors and waiting times for customers.

Innovation Solution

The ATM is equipped with a cheque input slot for leaf-by-leaf insertion, a transportation unit, a Contact Image Sensor (CIS) for image acquisition, a Magnetic Ink Character Recognition (MICR) unit for magnetic information, and a plural cheque leaves detecting unit that senses the thickness of cheques, allowing for verification and endorsement based on image and magnetic information.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple cheque leaves are inserted into the ATM for depositing, then the processing capacity is improved, but the accuracy of detecting and processing each individual cheque leaf deteriorates

Engineering Contradiction:
Improveprocessing capacityVSAvoiddetection accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The cheque processing system segments the detection and processing of multiple cheque leaves by sequentially handling each leaf through the cheque input slot. The transportation unit moves cheques one at a time through the processing path, ensuring that image acquisition, MICR reading, and authentication are performed on individual leaves rather than overlapping multiple leaves simultaneously.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The patent introduces an intermediary detection mechanism that senses whether multiple cheque leaves are present in the processing path. This intermediary system detects the presence of multiple leaves and prevents processing until only a single leaf remains, thereby maintaining detection accuracy while allowing batch insertion of cheques by the user.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If manual cheque verification is performed by bank clerks, then the accuracy of cheque authentication is improved, but the waiting time for customers and operational efficiency deteriorate

Engineering Contradiction:
Improveauthentication accuracyVSAvoidcustomer waiting time
Core Design Contradiction:
ReliabilityVSLoss of time

Solution Approach 1:

The ATM system performs self-service cheque authentication by automatically acquiring images through the CIS unit, reading magnetic characters via the MICR unit, and verifying cheque authenticity without requiring bank clerk intervention. The system independently completes authentication, endorsement printing, and cheque storage or return operations.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The patent replaces the manual mechanical verification process with automated optical and magnetic detection systems. The CIS unit captures cheque images, the MICR unit reads magnetic ink characters, and the system automatically compares these against authentication criteria, substituting human visual inspection with automated sensing and processing.

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

3Adaptability or versatility

If a side-car module is installed next to the ATM for cheque depositing, then the cheque depositing capability is improved, but the space requirement and device complexity deteriorate

Engineering Contradiction:
Improvecheque depositing capabilityVSAvoidsystem configuration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent merges the cheque depositing functionality directly into the existing ATM structure. The cheque input slot, transportation unit, image acquisition system, and authentication mechanisms are integrated within the ATM housing rather than being installed as a separate side-car module, thereby combining multiple functions in a single unified device.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The ATM system is designed with multi-functionality to handle both traditional cash transactions and cheque depositing operations through shared hardware components. The same transportation unit, image acquisition system, and authentication mechanisms serve both cash and cheque processing, eliminating the need for entirely separate dedicated cheque processing equipment.

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

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

This solution enables accurate detection of multiple cheque leaves, ensuring reliable processing, reducing manual errors, and enhancing operational efficiency by allowing only single cheque leaves to be processed, thus improving customer convenience and reducing waiting times.

Implementation Method 1

a CIS (Contact Image Sensor) unit for scanning the cheque to acquire image information

Methodology Applied
Scientific EffectLight reflection: Reflection

Implementation Method 2

a MICR (Magnetic Ink Character Recognition) unit for acquiring information on magnetic characters printed on the cheque

Methodology Applied
Scientific EffectMagnetic field detection: Magnetic Field

Data Source

PatentUS7637422B2Automated teller machine capable of depositing cheques
Publication Date: 2009.12.29 HYOSUNG TNS INC
  • US7637422B2 patent drawing
  • US7637422B2 patent drawing
  • US7637422B2 patent drawing

AI summary

A automated teller machine (ATM) verifies the authenticity of the cheque based on image information acquired by a CIS unit and magnetic character information acquired by a MICR unit. The ATM further includes a plural cheque leaves determining unit for determining the presence of plural cheque leaves using the image information, the magnetic character information, and thickness information of the cheque.