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Banknote validator with sensors having multiple resolutions

IP.com Disclosure Number: IPCOM000247617D
Publication Date: 2016-Sep-20
Document File: 5 page(s) / 319K

Publishing Venue

The IP.com Prior Art Database

Abstract

In this white paper, a method is proposed to manage changes to banknotes introduced by banknote issuing authorities. Introduction of a high resolution sensor is proposed. The proposed new sensor will have a higher resolution than the existing sensor(s) used in banknote validators. The proposed high resolution sensor can distinguish newly issued genuine banknotes from previously issued genuine banknotes due to the higher resolution of the sensor. For example, when a banknote issuing authority changes the width of the security thread in a new generation of banknotes, a banknote validator with a high resolution sensor will have the ability to differentiate the previous generation banknote from the new/current generation banknote.

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Banknote validator with sensors having multiple resolutions

Abstract

    In this white paper, a method is proposed to manage changes to banknotes introduced by banknote issuing authorities. Introduction of a high resolution sensor is proposed. The proposed new sensor will have a higher resolution than the existing sensor(s) used in banknote validators. The proposed high resolution sensor can distinguish newly issued genuine banknotes from previously issued genuine banknotes due to the higher resolution of the sensor. For example, when a banknote issuing authority changes the width of the security thread in a new generation of banknotes, a banknote validator with a high resolution sensor will have the ability to differentiate the previous generation banknote from the new/current generation banknote.

Problem description

    Existing low cost banknote validators normally work with sensors that have single resolution to detect security features on banknotes. In many currencies, the security features are distributed in different regions of the banknote. Common types of security features are preferred as they spread development cost and raise awareness of the security features in each country. Some of these security features are Level I, intended for public; other features are considered Level II and Level III for which assistance of sensors (capacitive, inductive, magnetic, infrared, ultraviolet and others) is required. Many low cost banknote validators use these Level I and Level II security features to authenticate and denominate the currency. These low cost banknote validators detect the presence and placement of security features utilizing a common set of sensor technologies that may be used across several countries. These standardized sensor sets normally have single resolution that can detect the presence of some of the designated security features in predefined locations for a particular banknote.

    Existing banknote validators may have capacitive type sensors to detect security thread; they may have inductive type sensors to detect the magnetic nature of the ink; they may have optical sensors including ultraviolet, visible and infrared to detect the optical properties of the ink. Low cost banknote validators may not incorporate all the types of sensors required to detect all the security features on a banknote. Existing banknote validators may only verify a few security features to validate and classify a banknote. The covert nature of Level II security features makes counterfeiting them more difficult compared to Level I security features as a counterfeiter may not be aware of the existence of some of the Level II security features. In addition, a counterfeiter may not know which security features a banknote validator is detecting. The covertness of the Level II security features may allow existing low cost banknote validators to incorporate sensors with low resolution to detect the presence of the security

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