[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP0744716A3 - Method and apparatus for authenticating documents - Google Patents

Method and apparatus for authenticating documents Download PDF

Info

Publication number
EP0744716A3
EP0744716A3 EP96303493A EP96303493A EP0744716A3 EP 0744716 A3 EP0744716 A3 EP 0744716A3 EP 96303493 A EP96303493 A EP 96303493A EP 96303493 A EP96303493 A EP 96303493A EP 0744716 A3 EP0744716 A3 EP 0744716A3
Authority
EP
European Patent Office
Prior art keywords
values
document
discriminant
documents
data
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP96303493A
Other languages
German (de)
French (fr)
Other versions
EP0744716A2 (en
EP0744716B1 (en
Inventor
Heather L. Cumming
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NCR International Inc
Original Assignee
NCR International Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10775074&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0744716(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by NCR International Inc filed Critical NCR International Inc
Publication of EP0744716A2 publication Critical patent/EP0744716A2/en
Publication of EP0744716A3 publication Critical patent/EP0744716A3/en
Application granted granted Critical
Publication of EP0744716B1 publication Critical patent/EP0744716B1/en
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
    • G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
    • G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
    • G07D7/12—Visible light, infrared or ultraviolet radiation
    • G07D7/1205—Testing spectral properties

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)
  • Character Input (AREA)
  • Collating Specific Patterns (AREA)

Abstract

In a method and apparatus for authenticating documents, at least one small area (22) on a document (12) being tested is sensed by a spectroscope (26), and the light intensity at a plurality (e.g. 50) of spectral points is measured by a photodiode array (30). The resulting signals are digitized in an analog-to-digital converter (38) and the resulting data is stored. This data is then analyzed by discriminant analysis, whereby the intensity values treated as components of a vector are multiplied by one or more sets of weighting coefficients (discriminant functions) to provide a set of discriminant function values. A distance measurement between this set of values and the centroid of a corresponding set of values for genuine documents is compared with a threshold value to determine the authenticity of the document (12).
EP96303493A 1995-05-25 1996-05-16 Method and apparatus for authenticating documents Revoked EP0744716B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB9510678.7A GB9510678D0 (en) 1995-05-25 1995-05-25 Method and apparatus for authenticating documents
GB9510678 1995-05-25

Publications (3)

Publication Number Publication Date
EP0744716A2 EP0744716A2 (en) 1996-11-27
EP0744716A3 true EP0744716A3 (en) 1996-12-18
EP0744716B1 EP0744716B1 (en) 1999-12-29

Family

ID=10775074

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96303493A Revoked EP0744716B1 (en) 1995-05-25 1996-05-16 Method and apparatus for authenticating documents

Country Status (6)

Country Link
EP (1) EP0744716B1 (en)
JP (1) JPH0916777A (en)
DE (1) DE69605854T2 (en)
ES (1) ES2140787T3 (en)
GB (1) GB9510678D0 (en)
ZA (1) ZA963604B (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09231435A (en) * 1996-02-21 1997-09-05 Copal Co Ltd Paper sheet counterfeit discriminating device
JPH11154253A (en) * 1997-11-20 1999-06-08 Sanyo Electric Co Ltd Method for judging authenticity of paper sheet
FR2846445B1 (en) * 2002-10-29 2005-04-08 Claude Lambert METHOD OF AUTHENTICATING BY MARKING OR CHEMICAL TRACING AN OBJECT OR SUBSTANCE.
JP4349849B2 (en) 2003-06-17 2009-10-21 日立オムロンターミナルソリューションズ株式会社 Automatic deposit machine and bill tracking method
DE10346636A1 (en) 2003-10-08 2005-05-12 Giesecke & Devrient Gmbh Device and method for checking value documents
DE102009058439A1 (en) * 2009-12-16 2011-06-22 Giesecke & Devrient GmbH, 81677 Method for checking value documents
DE102009058438A1 (en) * 2009-12-16 2011-06-22 Giesecke & Devrient GmbH, 81677 Method for checking value documents
CN102254370B (en) * 2011-06-17 2013-05-08 深圳市怡化电脑有限公司 Note width and distance detecting and quantity calculating method and device
AU2016100492B4 (en) * 2016-04-29 2016-07-21 Ccl Secure Pty Ltd A method and system for identifying and measuring a defect that reduces transparency in a substrate for a security document

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526466A (en) * 1983-09-01 1985-07-02 Rca Corporation Technique for verifying genuineness of authenticating device
WO1985002928A1 (en) * 1983-12-27 1985-07-04 Bergstroem Arne Apparatus for authenticating bank notes
US4577235A (en) * 1984-08-20 1986-03-18 The Mead Corporation Text/continuous tone image decision processor
US5304813A (en) * 1991-10-14 1994-04-19 Landis & Gyr Betriebs Ag Apparatus for the optical recognition of documents
US5392364A (en) * 1991-05-23 1995-02-21 Matsushita Electric Industrial Co., Ltd. Object inspection method employing selection of discerning features using mahalanobis distances

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526466A (en) * 1983-09-01 1985-07-02 Rca Corporation Technique for verifying genuineness of authenticating device
WO1985002928A1 (en) * 1983-12-27 1985-07-04 Bergstroem Arne Apparatus for authenticating bank notes
US4577235A (en) * 1984-08-20 1986-03-18 The Mead Corporation Text/continuous tone image decision processor
US5392364A (en) * 1991-05-23 1995-02-21 Matsushita Electric Industrial Co., Ltd. Object inspection method employing selection of discerning features using mahalanobis distances
US5304813A (en) * 1991-10-14 1994-04-19 Landis & Gyr Betriebs Ag Apparatus for the optical recognition of documents

Also Published As

Publication number Publication date
EP0744716A2 (en) 1996-11-27
JPH0916777A (en) 1997-01-17
DE69605854T2 (en) 2000-07-20
EP0744716B1 (en) 1999-12-29
ES2140787T3 (en) 2000-03-01
ZA963604B (en) 1996-08-23
GB9510678D0 (en) 1995-07-19
DE69605854D1 (en) 2000-02-03

Similar Documents

Publication Publication Date Title
US5757001A (en) Detection of counterfeit currency
ATE239910T1 (en) DEVICE FOR MULTISPECTRAL ANALYSIS IN NON-INVASIVE NIR SPECTROSCOPY
WO2004086939A3 (en) Measurements in a subject using resonant raman signals
EP0883094A3 (en) Method and apparatus for currency discrimination and counting
CN101458836B (en) Identifying method and system for papers of value
CA2384112A1 (en) Method and apparatus for determining document authenticity
CA2004465A1 (en) Method and apparatus for determining ambient light and surface reflectance
EP0744599A3 (en) Optical spectrometer for detecting spectra in seperate ranges
EP1496350A3 (en) Method and apparatus for generating basis sets for use in spectroscopic analysis
ATE192850T1 (en) METHOD FOR CALIBRATION OF SEVERAL SPECTROMETERS
WO2001098740A3 (en) Spectrum measuring instrument
WO2004036508A3 (en) Multi-wavelength currency authentication system and method
EP0744716A3 (en) Method and apparatus for authenticating documents
US7170074B2 (en) Apparatus and method for currency sensing and for adjusting a currency sensing device
CA2205802A1 (en) A method of obtaining information
AU2002212602A1 (en) Document sensing apparatus and method
EP0806662A3 (en) Apparatus and method for determination of urine color
EP0803726A3 (en) Method and apparatus for discriminating coal species
WO2005103835A3 (en) A system for analyzing an organic photoconducting drum and a method thereof
US5042948A (en) Industrial colorimeter having lamp aging compensation means
JPS6459018A (en) Method and measuring instrument for long time resolution total reflection spectrum analyzing
Datt Recognition of eucalyptus forest species using hyperspectral reflectance data
CN102692395B (en) Light interference gas detection device and working condition detection method thereof
AU5576799A (en) Apparatus for measuring and applying instrumentation correction to produce standard raman spectrum
EP1100051A3 (en) Coin tester

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): DE ES FR GB IT

AK Designated contracting states

Kind code of ref document: A3

Designated state(s): DE ES FR GB IT

17P Request for examination filed

Effective date: 19970618

17Q First examination report despatched

Effective date: 19981125

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

ITF It: translation for a ep patent filed
REF Corresponds to:

Ref document number: 69605854

Country of ref document: DE

Date of ref document: 20000203

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2140787

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBI Opposition filed

Free format text: ORIGINAL CODE: 0009260

26 Opposition filed

Opponent name: GIESECKE & DEVRIENT GMBH

Effective date: 20000929

PLBF Reply of patent proprietor to notice(s) of opposition

Free format text: ORIGINAL CODE: EPIDOS OBSO

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20030402

Year of fee payment: 8

REG Reference to a national code

Ref country code: GB

Ref legal event code: 746

Effective date: 20030402

REG Reference to a national code

Ref country code: FR

Ref legal event code: D6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20040330

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20040427

Year of fee payment: 9

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20040430

Year of fee payment: 9

RDAF Communication despatched that patent is revoked

Free format text: ORIGINAL CODE: EPIDOSNREV1

RDAG Patent revoked

Free format text: ORIGINAL CODE: 0009271

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: PATENT REVOKED

27W Patent revoked

Effective date: 20040514

GBPR Gb: patent revoked under art. 102 of the ep convention designating the uk as contracting state

Free format text: 20040514