FR2294490A1 - Automatic verification system for documents - involves random scan of number of points and comparison of measured values with standard values - Google Patents

Automatic verification system for documents - involves random scan of number of points and comparison of measured values with standard values

Info

Publication number
FR2294490A1
FR2294490A1 FR7440741A FR7440741A FR2294490A1 FR 2294490 A1 FR2294490 A1 FR 2294490A1 FR 7440741 A FR7440741 A FR 7440741A FR 7440741 A FR7440741 A FR 7440741A FR 2294490 A1 FR2294490 A1 FR 2294490A1
Authority
FR
France
Prior art keywords
valves
points
values
documents
comparison
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
FR7440741A
Other languages
French (fr)
Other versions
FR2294490B1 (en
Inventor
Jean Tourret
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.)
Compteurs Schlumberger SA
Original Assignee
Compteurs Schlumberger SA
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 Compteurs Schlumberger SA filed Critical Compteurs Schlumberger SA
Priority to FR7440741A priority Critical patent/FR2294490A1/en
Publication of FR2294490A1 publication Critical patent/FR2294490A1/en
Application granted granted Critical
Publication of FR2294490B1 publication Critical patent/FR2294490B1/fr
Granted 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

Abstract

The document verification method is used especially for banknotes, by comparing measured parameters, with ideal values of these parameters at a large number of randomly chosen points. The number of points chosen by greater than a given number to give sufficiently thorough coverage of the document, and a comparator system checks the detected valves against the correct valves for these points. The numbers of measured valves exceeding and falling below these correct values are rotated, and there are means for determining whether these valves fall within acceptable valves. The acceptable valves form a band which covers a mean valve or ideal value. Typical test parameters used may be optical transparency or reflectance.
FR7440741A 1974-12-11 1974-12-11 Automatic verification system for documents - involves random scan of number of points and comparison of measured values with standard values Granted FR2294490A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7440741A FR2294490A1 (en) 1974-12-11 1974-12-11 Automatic verification system for documents - involves random scan of number of points and comparison of measured values with standard values

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7440741A FR2294490A1 (en) 1974-12-11 1974-12-11 Automatic verification system for documents - involves random scan of number of points and comparison of measured values with standard values

Publications (2)

Publication Number Publication Date
FR2294490A1 true FR2294490A1 (en) 1976-07-09
FR2294490B1 FR2294490B1 (en) 1977-04-08

Family

ID=9146006

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7440741A Granted FR2294490A1 (en) 1974-12-11 1974-12-11 Automatic verification system for documents - involves random scan of number of points and comparison of measured values with standard values

Country Status (1)

Country Link
FR (1) FR2294490A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043988A1 (en) * 1980-07-03 1982-01-20 Palmguard Inc. Method for analyzing stored image details
EP0072236A2 (en) * 1981-08-11 1983-02-16 De La Rue Systems Limited Apparatus for detecting tape on sheets

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0043988A1 (en) * 1980-07-03 1982-01-20 Palmguard Inc. Method for analyzing stored image details
EP0072236A2 (en) * 1981-08-11 1983-02-16 De La Rue Systems Limited Apparatus for detecting tape on sheets
EP0072236A3 (en) * 1981-08-11 1983-07-06 De La Rue Systems Limited Apparatus for detecting tape on sheets

Also Published As

Publication number Publication date
FR2294490B1 (en) 1977-04-08

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Legal Events

Date Code Title Description
ST Notification of lapse