WO2002017217A1 - Dispositif de balayage equipe d'un guide d'onde destine a balayer du papier-monnaie - Google Patents

Dispositif de balayage equipe d'un guide d'onde destine a balayer du papier-monnaie Download PDF

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Publication number
WO2002017217A1
WO2002017217A1 PCT/US2001/041704 US0141704W WO0217217A1 WO 2002017217 A1 WO2002017217 A1 WO 2002017217A1 US 0141704 W US0141704 W US 0141704W WO 0217217 A1 WO0217217 A1 WO 0217217A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
emitting diode
scanner apparatus
wave guide
zone
Prior art date
Application number
PCT/US2001/041704
Other languages
English (en)
Inventor
Abbas Hosseini
Gajendra D. Savant
San Zhuang Wang
Rick L. Shie
Original Assignee
Physical Optics Corporation
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Physical Optics Corporation filed Critical Physical Optics Corporation
Priority to AU2001285435A priority Critical patent/AU2001285435A1/en
Priority to CA002419287A priority patent/CA2419287C/fr
Priority to KR1020037002343A priority patent/KR100875001B1/ko
Priority to JP2002521211A priority patent/JP4782357B2/ja
Priority to EP01964597A priority patent/EP1317729A4/fr
Publication of WO2002017217A1 publication Critical patent/WO2002017217A1/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10554—Moving beam scanning
    • G06K7/10564—Light sources
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K7/00—Methods or arrangements for sensing record carriers, e.g. for reading patterns
    • G06K7/10—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation
    • G06K7/10544—Methods or arrangements for sensing record carriers, e.g. for reading patterns by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation by scanning of the records by radiation in the optical part of the electromagnetic spectrum
    • G06K7/10554—Moving beam scanning
    • G06K7/10594—Beam path
    • G06K7/10683—Arrangement of fixed elements
    • G06K7/10702—Particularities of propagating elements, e.g. lenses, mirrors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B82—NANOTECHNOLOGY
    • B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
    • B82Y99/00—Subject matter not provided for in other groups of this subclass

Definitions

  • the present invention in general, is directed to scanners. More particularly, the present invention is directed to an apparatus and method for scanning paper currency for the purpose of verifying the authenticity as well as determining the value thereof.
  • Conventional paper-currency scanning devices are, e.g., typically associated with vending machines that provide consumers with beverages and snacks as well as separate mechanisms located in, e.g., recreational areas having casino slot machines that accept paper currency and/or video arcades that provide coins in exchange for paper currency.
  • Such scanning devices typically employ a light source to illuminate the currency as well as a detector system that picks-up features or characteristics from the currency.
  • a number of conventional paper currency-scanning devices and systems further frequently incorporate at least one light source as well as an associated collimating lens for producing a beam of substantially parallel light rays that pass through and illuminate the paper currency from one side thereof.
  • an associated planar/convex lens for gathering scatter rays from the bill, and which thereafter provides the gathered scatter rays to an associated detector that is designed, in ideal situations, to be capable of verifying the authenticity as well as detecting the value of the scanned bills.
  • the convex lens is typically so spaced from a desired scanning plane (for the paper currency) such that the focal point of the lens ideally touches the scanning plane.
  • indicia and other characteristics incorporated into current paper currency for security reasons are capable of providing light passing through the scanned bill with information that is compared to certain stored information, for the purpose of verifying authenticity as well as value of the paper currency being scanned.
  • paper by its nature diffuses light.
  • diffused light passing through a bill located in the desired scarining plane, which is thereafter focused may fall short of the detector entirely, or the light rays passing through the convex lens may focus light from the scanned bill behind a desired detection zone, either of which is undesirable.
  • conventional currency-scanning devices may include, as the light sources thereof, certain light-emitting diode devices (or so- called "packages"), that are capable of providing light of multiple wavelengths.
  • LEDs state-of- the-art light-emitting diodes
  • a single currently commercially-available LED package capable of operating from blue to infrared, when incorporated into the above- described conventional currency-scanning device, is able to provide the scarining device with a source of light having the characteristic wavelengths of 470, 505, 620, 730, 840 and 940 nanometers.
  • the present invention is directed to a scanner apparatus that does not require a collimating lens. Instead, the scanner apparatus incorporates a waveguide. Moreover, the resulting design of the scanner apparatus of the invention has enabled reducing the number of light-emitting diode (LED) packages from twelve or more to four or less.
  • LED light-emitting diode
  • the scanner apparatus of the invention is preferably used to scan paper currency for the purpose of verifying the authenticity as well as determining the value thereof.
  • each such LED package is preferably so disposed and positioned, relative to the currency-scanning plane, as to scan a different quarter portion of the paper currency.
  • the scanner apparatus of the present invention comprises a scanning zone, at least one light-emitting diode, at least one light detector, and a waveguide.
  • the scanning zone of the scanner defines opposed sides and is dimensioned to enable a scannable article to be disposed between the opposed sides thereof.
  • the light-emitting diode device is disposed on one side of the scanning zone, and is capable of providing light of discreetly-different energy levels. Also, the light-emitting diode device is so disposed relative to the scanning zone as to enable light associated with such diode device to be able to scan at least a portion of the scannable article.
  • the light-detector device is spaced from the light-emitting diode, and is also so disposed relative to the scanning zone of the scanner, that light emanating from the light-emitting diode device and thereafter passing through the scanning zone, is able to provide information, enabling the light detector to characterize the article scanned in the zone.
  • the wave guide is disposed between the light-emitting diode device and scanning zone.
  • the wave guide defines at least one light-admitting aperture and at least one light-reflective surface, wherein the light-admitting aperture and the light- reflecting surface cooperate to direct light from the light-emitting diode device toward the scanning zone, and to focus such light centrally along a path traveled by such light toward the detector.
  • Figure 1 is a schematic view of a conventional apparatus for scarining currency.
  • Figure 2 is a schematic view of a first embodiment of the scanner apparatus of the present invention.
  • Figure 3 also a schematic, shows a lower portion of the embodiment of Figure 2.
  • Figure 4 is a bottom plan view taken generally along the plane 4-4 of Figure 3.
  • Figure 5 A is a schematic view that depicts an illustrative example of a feature of the present invention generally shown in Figure 3, on an enlarged scale relative thereto.
  • Figure 5B is another schematic depicting a further illustrative example of the noted feature generally shown in Figure 3, also on an enlarged scale relative thereto.
  • Figure 6 depicts, in side view and in a schematic format, yet another preferred embodiment of the scanner apparatus of the present invention.
  • Figure 7 depicts, in side view and also in a schematic format, still another preferred embodiment of the scanner apparatus of the present invention.
  • like reference numeral refer to like component parts.
  • Figure 1 depicts, as a schematic view, a conventional apparatus 100 for scanning paper currency.
  • the apparatus 100 includes an opening or aperture 102 typically taking the form of an elongated slot for inserting paper currency into the apparatus 100.
  • the currency-insertion aperture or opening 102 includes an upper boundary 104 and a lower boundary 106.
  • Currency (not shown) inserted through opening 102 into the apparatus 100 ideally is caused to travel along a path 110 (shown in dotted line) that may be thought of as a plane extending into the page of Figure 1 of this patent specification.
  • the currency-scanning apparatus 100 also includes a plurality of light- emitting diodes (LEDs) 114 that are spaced from the lower boundary 106 generally uniformly along the length thereof. As was noted above, twelve or more of the above-described LED packages 114 must necessarily be incorporated into the scanning apparatus 100, if the apparatus 100 is to verify currency authenticity and value, thereby to achieve its commercial purpose.
  • LEDs light- emitting diodes
  • each lens 116 is similarly spaced from the lower boundary 106 generally uniformly along the length thereof.
  • each such collimating lens 116 is associated with its corresponding LED package 114. Accordingly, as a result of the scanner arrangement shown, each such collimating lens 116 is located between the lower boundary 106 and its associated LED package 114.
  • the currency-scanning apparatus 100 of Figure 1 further includes a corresponding plurality of simple planar convex light-focusing lenses 122.
  • Each such simple planar convex light-focusing lens 122 is disposed between the upper boundary 104 and an associated currency authenticity/valuation detector 120. In ideal situations, each such simple planar convex light-focusing lens 122 is capable of focusing light passing through the paper currency onto a preselected portion (or point) of its associated detector 120.
  • the plural simple planar convex light-focusing lenses 122 focus light to enable the plural detectors 120 to detect certain light-energy levels, for the purpose of verifying the authenticity of the inserted currency as well as detecting the value thereof.
  • the currency-scanning apparatus 100 shown in Figure 1 accordingly necessarily further includes a corresponding plurality of detectors 120, each of which is capable of verifying the authenticity of currency and detecting the relative value thereof.
  • the plural detectors 120 are by current design spaced from the upper boundary 104 generally uniformly along the length thereof.
  • Each detector 120 is associated with a corresponding light-focusing lens 122 as well as with a corresponding LED package 114 and collimating lens 116, for reasons stated above.
  • Conventional scanners still have problems. As was mentioned above, movement of paper currency above or below its desired scanning plane may take the bill out of the focal point of light-focusing convex lens 122. Also, paper by its nature diffuses light.
  • the resultant diffused light that passes through a bill located in the scanning plane 110, which light is thereafter focused may fall short of one or more of the plural detectors 120 entirely, or the light rays passing through one or more of the plural convex lens 122 may focus light from the scanned bill behind a desired detection zone of an associated detector 120, either of which result is undesirable.
  • Aligning each LED package 114 with associated lenses 116 and 122 is a major obstacle faced by current scanner manufacturers and misalignment is common. Unnecessary complexity may result in excessive cost of the apparatus, and may affect reliable operation thereof. It is therefore desirable to reduce the complexity of a scanner apparatus by reducing the number of LED packages and associated components now required in state-of-the-art paper-currency scanners, thereby allowing for reduction of the above mentioned associated components, resulting in a less complex apparatus.
  • Multiplicity of component parts may undesirably impact on volume requirements and associated appearance considerations of conventional scanners. To minimize volume requirements, reduction of the number of components may therefore become desirable. It is further desirable that the resultant less-complex apparatus nevertheless be capable of verifying the authenticity of currency and determining its denomination or value with very high reliability and accuracy and statistically significant precision.
  • Figure 2 depicts, in schematic, one embodiment of the scanner apparatus 200 of the present invention.
  • Apparatus 200 is preferably used to scan paper currency to verify authenticity and determine the value thereof.
  • Currency-scanner apparatus 200 includes no more than four light-emitting diode packages 214, the location of which will be described below in connection with Figure 4.
  • Each such light-emitting diode (LED) package 214 is able to produce light having a plurality of discreetly-different wave lengths, each of which has a discrete energy level.
  • each LED package 214 is capable of producing light having two to ten discretely different energy levels. More preferably, each LED package 214 is able to produce light having four to eight discretely-different energy levels depending on the wavelengths.
  • the most preferred LED package 214 (shown in Figure 4) is capable of producing light having six different energy levels.
  • the most preferred LED package 214 of the currency scanner apparatus 200 is able to produce light having associated discretely-different wavelengths of 470, 505, 620, 730, 840 and 940 nanometers.
  • Figure 4 depicts schematically six apertures on LED package 214, wherein the apertures 218A, 218B, 218C, 218D, 218E and 218F are each associated with a different one of the six wave lengths of light that are mentioned immediately above.
  • the scanner apparatus 200 of the present invention does not require a collimating lens. Instead, the scanner apparatus 200 of the invention includes a wave guide 230. Wave guide 230 includes polished clear windows 232 located on opposite ends thereof. The windows 232 are so disposed relative to an associated LED package 214 as to enable light from such associated LED package 214 to enter the wave guide 230.
  • the illustrated wave guide 230 further includes side surfaces 234 as well as a grooved surface 236 for directing light from the LED packages 214 toward the direction of paper currency that is caused to travel along a path 210 (shown in dotted line) that may be thought of as a plane extending into the page of Figure 2 of this patent specification.
  • Side surfaces 234, disposed at opposite ends of wave guide 230, are metalized. Each metalized surface 234 is so disposed relative to an associated LED package 214 as to direct light from such LED 214 toward scaniiing path 210, as described above.
  • Grooved surface 236 includes individual grooves 238-240, depicted schematically in Figures 3 and 4.
  • Each groove 238 shown is illustrative of a groove formed at an upper junction of angled adjacent surface portions of grooved surface 236.
  • grooves 239 and 240 are illustrative of grooves formed at an intermediate junction and at a lower junction, respectively, of angled adjacent surface portions of the grooved surface 236.
  • Grooved surface 236 is symmetric about axis A-A ( Figure 3) for several reasons.
  • the light sources (provided by the LED packages 214) are longitudinally disposed at opposite ends of the wave guide 230.
  • the angled side surfaces 234 of the wave guide 230 are so disposed relative to their associated LED packages 214 as to concentrate reflected light of six discrete, different wavelengths toward central axis A-A.
  • the grooved surface 236, itself, is made up of minute illustrative grooves 236A (Figure 5A) and grooves 236B (Figure 5B), designed to concentrate light centrally.
  • grooves 236B (Figure 5B), which are triangularly formed and located closer to windows 232, are so dimensioned as to cause a first portion of the six wavelengths to so reflect from the side surfaces 234 and grooved surface 236 as to be concentrated centrally toward axis A-A. Proceeding closer to central axis A-A minute grooves 236A are even more closely spaced ( Figure 5A) so as to cause a second portion of the six wavelengths of light from LED packages 214 to be concentrated centrally toward axis A-A. Additional minute grooves (not shown) are accordingly symmetrically formed in the grooved surface 236 relative to the central axis A-A until all six wavelengths of light from LED package 214 are centrally concentrated.
  • the illustrated wave guide 230 ( Figures 2 and 3) is a so-called "dove" prism made of a commercially-available acrylic material which is both highly transparent and able to transmit light with high efficiency, thus achieving substantially total internal reflection.
  • the side surfaces 234 and grooved surface 236 are metalized with commercially-available highly reflective material for reflecting light centrally toward axis A-A and path 210, as noted above. Further in this regard, grooved surface 236, itself, is especially designed to concentrate light of discretely-different wave lengths and associated energy levels uniformly toward an article such as currency being scanned by apparatus 200.
  • Wave guide 330 includes wave guide 330 and LED packages 314, and spaced-apart light-reflective side surfaces 334 disposed on opposite longitudinal ends of wave guide 330.
  • Wave guide 330 further includes a pair of spaced-apart polished, clear light-transmissive windows 332, each of which is so located adjacent an associated LED package 314, as to achieve a
  • this embodiment of the invention incorporates into the design of the illustrated wave guide 330 a holographic, variable light-shaping diffuser surface 350 between the windows 332.
  • the light-shaping diffuser surface 350 is upwardly light-reflective, as a result of a layer of commercially-available metallic material 352 that is applied to the underside thereof.
  • the variability that is incorporated into the light-shaping diffuser surface 350 is able to achieve the same effect of the variably grooved surface 236 of scanner apparatus 200, to focus within wave guide 330 internally-reflected light toward central axis B-B of apparatus 300 and upwardly, achieving the noted "light bar” effect, for the purpose of scanning an article.
  • a central portion 360 (depicted in Figure 6 between vertically-disposed dotted lines) preferably has a major light output distribution angle of 80 to 95 ° along the length as well as a minor light distribution angle of 25 to 35 ° across the width of paper currency being scanned.
  • Light-shaping diffuser surface 350 further includes spaced-apart end portions 362, each of which is located adjacent an associated LED package 314. Further, each portion 362 preferably has a major angle of 60 to 75 ° along the length as well as a minor angle of 10 to 25 ° across the width of currency scanned along path 310 by scanner 300.
  • the apparatus further includes a light-shaping surface diffuser layer 370 disposed above wave guide 330, as shown in Figure 6.
  • Layer 370 also preferably has a major light distribution angle of 80 to 95 ° along the length as well as a minor light distribution angle of 25 to 35 ° across the width of paper currency being scanned, as does central portion 360. Moreover, layer 370 and central portion 360 have their light-shaping diffuser major and minor angle orientations aligned, to achieve the above-noted effect.
  • An optional sheet of commercially-available prismatic material 380 may then be disposed on the opposite side of path 310 relative to light-shaping surface diffuser layer 370, to reduce the effect of light coming off of the backside of currency being scanned.
  • Yet another embodiment of the scanner apparatus 400 of the present invention includes wave guide 440 and light-shaping surface diffuser layer 470 disposed thereabove, as in scanner apparatus 300.
  • a plurality of detectors 420 located on the opposite side of path 410 relative to wave guide 440, are so disposed relative to each other along the length of path 410 as to verify the authenticity as well as determine the value of currency being caused to travel along path 410 by use of a conventional mechanism (not shown).
  • a single row of detectors 420 may include eight to twelve individual detectors 420, depending on dimensions of scanned currency.
  • a sheet of commercially-available prismatic material 480 is disposed between path 410 and the light-shaping surface diffuser layer 470, to reduce the effect of light scattering, and collimating the light between diffuser layer 470 and path 410.
  • At detectors 420 and path 410 is at least one sheet of another commercially-available prismatic material 482, which preferably has its prismatic grooves (not shown) disposed longitudinally relative to the currency that is caused to travel along path 410, namely, out of the plane of the page of Figure 7.
  • An additional sheet of still another commercially-available prismatic material 484 may be disposed between prismatic material sheet 482 and detectors 420, to reduce the effect of light scattering between path 410 and detectors 420.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Image Input (AREA)

Abstract

L'invention concerne un dispositif de balayage lumineux (200) comprenant un guide d'onde (230). Ce dispositif (200) définit une zone de balayage, et comprend, en outre, une diode électroluminescente (214) et un détecteur. Le guide d'onde (230) est placé entre la diode (214) et la zone de balayage, et définit une ouverture d'entrée de lumière et une face réfléchissant la lumière. L'ouverture d'entrée de lumière et la face réfléchissant la lumière coopèrent afin de diriger la lumière provenant de la diode électroluminescente vers la zone de balayage, et afin de faire converger cette lumière au centre le long du passage parcouru par la lumière en direction du détecteur.
PCT/US2001/041704 2000-08-18 2001-08-14 Dispositif de balayage equipe d'un guide d'onde destine a balayer du papier-monnaie WO2002017217A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU2001285435A AU2001285435A1 (en) 2000-08-18 2001-08-14 Scanner with waveguide for scanning paper currency
CA002419287A CA2419287C (fr) 2000-08-18 2001-08-14 Dispositif de balayage equipe d'un guide d'onde destine a balayer du papier-monnaie
KR1020037002343A KR100875001B1 (ko) 2000-08-18 2001-08-14 도파관을 구비한 지폐 스캔용 스캐너
JP2002521211A JP4782357B2 (ja) 2000-08-18 2001-08-14 紙幣スキャン用導波路付きスキャナ
EP01964597A EP1317729A4 (fr) 2000-08-18 2001-08-14 Dispositif de balayage equipe d'un guide d'onde destine a balayer du papier-monnaie

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US64121600A 2000-08-18 2000-08-18
US09/641,216 2000-08-18

Publications (1)

Publication Number Publication Date
WO2002017217A1 true WO2002017217A1 (fr) 2002-02-28

Family

ID=24571434

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/041704 WO2002017217A1 (fr) 2000-08-18 2001-08-14 Dispositif de balayage equipe d'un guide d'onde destine a balayer du papier-monnaie

Country Status (8)

Country Link
EP (1) EP1317729A4 (fr)
JP (1) JP4782357B2 (fr)
KR (1) KR100875001B1 (fr)
CN (1) CN100390809C (fr)
AU (1) AU2001285435A1 (fr)
CA (1) CA2419287C (fr)
TW (1) TW538384B (fr)
WO (1) WO2002017217A1 (fr)

Cited By (2)

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AU2002327420B9 (en) * 2001-08-06 2003-02-24 Mei, Incorporated Document validator subassembly
WO2009042876A2 (fr) 2007-09-26 2009-04-02 Mei, Inc. Sous-ensemble de validation de documents

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Publication number Priority date Publication date Assignee Title
US8994931B2 (en) * 2010-09-22 2015-03-31 Hitachi-Omron Terminal Solutions, Corp. Paper sheets identification apparatus
JP6701625B2 (ja) * 2015-05-15 2020-05-27 富士電機株式会社 紙葉類識別装置の光ガイド装置
US20170309105A1 (en) * 2016-04-25 2017-10-26 Leadot Innovation, Inc. Method of Determining Currency and Denomination of an Inserted Bill in a Bill Acceptor Having a Single Slot and Related Device

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US5786582A (en) * 1992-02-27 1998-07-28 Symbol Technologies, Inc. Optical scanner for reading and decoding one- and two-dimensional symbologies at variable depths of field
US5923413A (en) * 1996-11-15 1999-07-13 Interbold Universal bank note denominator and validator
US5992749A (en) * 1996-03-01 1999-11-30 Asahi Kogaku Kogyo Kabushiki Kaisha Data symbol reader

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EP0198380B1 (fr) * 1985-04-08 1992-07-22 Fuji Photo Film Co., Ltd. Dispositif de balayage optique et appareil d'enregistrement ou de lecture utilisant un tel dispositif
CH689523A5 (de) * 1989-05-01 1999-05-31 Mars Inc Pruefeinrichtung fuer ein blattfoermiges Gut.
US5586212A (en) * 1994-07-06 1996-12-17 Hewlett-Packard Optical wave guide for hand-held scanner
GB2309299B (en) * 1996-01-16 2000-06-07 Mars Inc Sensing device
JP4266495B2 (ja) * 2000-06-12 2009-05-20 グローリー株式会社 紙幣処理機

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US5786582A (en) * 1992-02-27 1998-07-28 Symbol Technologies, Inc. Optical scanner for reading and decoding one- and two-dimensional symbologies at variable depths of field
US5574272A (en) * 1994-05-13 1996-11-12 Asahi Kogaku Kogyo Kabushiki Kaisha Data symbol reader
US5992749A (en) * 1996-03-01 1999-11-30 Asahi Kogaku Kogyo Kabushiki Kaisha Data symbol reader
US5923413A (en) * 1996-11-15 1999-07-13 Interbold Universal bank note denominator and validator

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2002327420B9 (en) * 2001-08-06 2003-02-24 Mei, Incorporated Document validator subassembly
EP1415188A2 (fr) * 2001-08-06 2004-05-06 Mars Incorporated Sous-ensemble de validation de documents
EP1415188A4 (fr) * 2001-08-06 2005-06-08 Mars Inc Sous-ensemble de validation de documents
US6994203B2 (en) 2001-08-06 2006-02-07 Mars Incorporated Document validator subassembly
AU2002327420B2 (en) * 2001-08-06 2007-05-31 Mei, Incorporated Document validator subassembly
WO2009042876A2 (fr) 2007-09-26 2009-04-02 Mei, Inc. Sous-ensemble de validation de documents
EP2198392A2 (fr) * 2007-09-26 2010-06-23 MEI, Inc. Sous-ensemble de validation de documents
EP2198392A4 (fr) * 2007-09-26 2011-11-02 Mei Inc Sous-ensemble de validation de documents

Also Published As

Publication number Publication date
KR20030066600A (ko) 2003-08-09
KR100875001B1 (ko) 2008-12-19
EP1317729A4 (fr) 2004-12-15
AU2001285435A1 (en) 2002-03-04
TW538384B (en) 2003-06-21
CA2419287C (fr) 2008-12-09
JP4782357B2 (ja) 2011-09-28
CA2419287A1 (fr) 2002-02-28
EP1317729A1 (fr) 2003-06-11
CN100390809C (zh) 2008-05-28
JP2004506992A (ja) 2004-03-04
CN1447952A (zh) 2003-10-08

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