FR2471633B1 - Procede et appareil de reconnaissance d'un marquage magnetique et application aux papiers de securite - Google Patents

Procede et appareil de reconnaissance d'un marquage magnetique et application aux papiers de securite

Info

Publication number
FR2471633B1
FR2471633B1 FR7930377A FR7930377A FR2471633B1 FR 2471633 B1 FR2471633 B1 FR 2471633B1 FR 7930377 A FR7930377 A FR 7930377A FR 7930377 A FR7930377 A FR 7930377A FR 2471633 B1 FR2471633 B1 FR 2471633B1
Authority
FR
France
Prior art keywords
recognition
application
security papers
magnetic marking
marking
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.)
Expired
Application number
FR7930377A
Other languages
English (en)
Other versions
FR2471633A1 (fr
Inventor
Robert Fruchart
Jean-Pierre Henri Senateur
Daniel Gabriel Boursier
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.)
Bpifrance Financement SA
Original Assignee
Agence National de Valorisation de la Recherche ANVAR
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 Agence National de Valorisation de la Recherche ANVAR filed Critical Agence National de Valorisation de la Recherche ANVAR
Priority to FR7930377A priority Critical patent/FR2471633B1/fr
Publication of FR2471633A1 publication Critical patent/FR2471633A1/fr
Application granted granted Critical
Publication of FR2471633B1 publication Critical patent/FR2471633B1/fr
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
    • D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
    • D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
    • D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
    • D21H21/48—Elements suited for physical verification, e.g. by irradiation
    • 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
    • G07D7/04—Testing magnetic properties of the materials thereof, e.g. by detection of magnetic imprint
    • 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
    • G06K7/08—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes
    • G06K7/082—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors
    • G06K7/083—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive
    • G06K7/084—Methods or arrangements for sensing record carriers, e.g. for reading patterns by means detecting the change of an electrostatic or magnetic field, e.g. by detecting change of capacitance between electrodes using inductive or magnetic sensors inductive sensing magnetic material by relative movement detecting flux changes without altering its magnetised state
FR7930377A 1979-12-11 1979-12-11 Procede et appareil de reconnaissance d'un marquage magnetique et application aux papiers de securite Expired FR2471633B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7930377A FR2471633B1 (fr) 1979-12-11 1979-12-11 Procede et appareil de reconnaissance d'un marquage magnetique et application aux papiers de securite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7930377A FR2471633B1 (fr) 1979-12-11 1979-12-11 Procede et appareil de reconnaissance d'un marquage magnetique et application aux papiers de securite

Publications (2)

Publication Number Publication Date
FR2471633A1 FR2471633A1 (fr) 1981-06-19
FR2471633B1 true FR2471633B1 (fr) 1985-12-20

Family

ID=9232650

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7930377A Expired FR2471633B1 (fr) 1979-12-11 1979-12-11 Procede et appareil de reconnaissance d'un marquage magnetique et application aux papiers de securite

Country Status (1)

Country Link
FR (1) FR2471633B1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3292506B2 (ja) * 1992-07-14 2002-06-17 日本発条株式会社 感磁性ワイヤを含有した被検出物とこの被検出物の真偽を判別する方法および処理装置
US5594229A (en) * 1993-07-12 1997-01-14 Nhk Spring Co., Ltd. Method and apparatus for checking the authenticity of a checking object by detecting magnetic flux reversals
US5533759A (en) * 1994-09-13 1996-07-09 Eastman Kodak Company Method of currency or document validation by use of a temperature sensitive magnetic pattern
US5922959A (en) * 1996-10-15 1999-07-13 Currency Systems International Methods of measuring currency limpness
DE19860093B4 (de) * 1998-12-23 2008-10-09 Giesecke & Devrient Gmbh Echtheitsmerkmalskombination für Wertdokumente

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE789503A (fr) * 1971-10-13 1973-01-15 Burroughs Corp
JPS5615036B2 (fr) * 1974-04-16 1981-04-08
GB1519142A (en) * 1974-07-04 1978-07-26 Emi Ltd Detection of magnetic patterns

Also Published As

Publication number Publication date
FR2471633A1 (fr) 1981-06-19

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Legal Events

Date Code Title Description
ST Notification of lapse