FR2277385A1 - Procede et dispositif pour la detection de configurations magnetiques - Google Patents
Procede et dispositif pour la detection de configurations magnetiquesInfo
- Publication number
- FR2277385A1 FR2277385A1 FR7520896A FR7520896A FR2277385A1 FR 2277385 A1 FR2277385 A1 FR 2277385A1 FR 7520896 A FR7520896 A FR 7520896A FR 7520896 A FR7520896 A FR 7520896A FR 2277385 A1 FR2277385 A1 FR 2277385A1
- Authority
- FR
- France
- Prior art keywords
- detection
- magnetic configurations
- configurations
- magnetic
- 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
Links
Classifications
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07F—COIN-FREED OR LIKE APPARATUS
- G07F7/00—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus
- G07F7/08—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means
- G07F7/086—Mechanisms actuated by objects other than coins to free or to actuate vending, hiring, coin or paper currency dispensing or refunding apparatus by coded identity card or credit card or other personal identification means by passive credit-cards adapted therefor, e.g. constructive particularities to avoid counterfeiting, e.g. by inclusion of a physical or chemical security-layer
-
- 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
-
- 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
- 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
- G07D7/20—Testing patterns thereon
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Theoretical Computer Science (AREA)
- Credit Cards Or The Like (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB29663/74A GB1519142A (en) | 1974-07-04 | 1974-07-04 | Detection of magnetic patterns |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2277385A1 true FR2277385A1 (fr) | 1976-01-30 |
FR2277385B1 FR2277385B1 (fr) | 1981-05-29 |
Family
ID=10295136
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7520896A Granted FR2277385A1 (fr) | 1974-07-04 | 1975-07-03 | Procede et dispositif pour la detection de configurations magnetiques |
Country Status (4)
Country | Link |
---|---|
US (1) | US4038596A (fr) |
DE (1) | DE2529276A1 (fr) |
FR (1) | FR2277385A1 (fr) |
GB (1) | GB1519142A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2471633A1 (fr) * | 1979-12-11 | 1981-06-19 | Anvar | Procede et appareil de reconnaissance d'un marquage magnetique et application aux papiers de securite |
FR2561427A1 (fr) * | 1984-03-13 | 1985-09-20 | Crouzet Sa | Procede d'identification de la nature d'un support magnetisable |
EP0702339A1 (fr) * | 1994-09-13 | 1996-03-20 | Eastman Kodak Company | Procédé de validation de billets ou de documents en utilisant un modèle magnétique sensible à la température |
Families Citing this family (55)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2390778A1 (fr) * | 1977-05-13 | 1978-12-08 | Cii Honeywell Bull | Dispositif de lecture d'informations magnetiques |
JPS54156610A (en) * | 1978-05-31 | 1979-12-10 | Tdk Corp | Inspecting method of magnetic recording tapes |
DE2936409A1 (de) * | 1979-09-08 | 1981-03-19 | Hermann 7742 St. Georgen Stockburger | Verfahren zum sichern von daten |
DE2950174A1 (de) * | 1979-12-13 | 1981-06-19 | Basf Ag, 6700 Ludwigshafen | Verfahren und vorrichtung zur echtheitspruefung von aufzeichnungstraegern, die gegen faelschung zu sichern sind |
US4649510A (en) * | 1982-04-30 | 1987-03-10 | Schmidt Walter E | Methods and apparatus for the protection and control of computer programs |
DE3378855D1 (en) * | 1982-05-18 | 1989-02-09 | Emi Ltd | A method of preparing and reading information which is permananently recorded on a magnetic layer |
GB8514391D0 (en) * | 1985-06-07 | 1985-07-10 | De La Rue Thomas & Co Ltd | Authenticity sensing |
US4734643A (en) * | 1985-08-05 | 1988-03-29 | Electrocom Automation, Inc. | Method and apparatus for detecting the presence of magnetic ink within a package by magnetizing and selectively remagnitizing the ferro-magnetic materials in the package |
US4806740A (en) * | 1986-09-19 | 1989-02-21 | Light Signatures, Inc. | Magnetic characteristic identification system |
US4837426A (en) * | 1987-01-16 | 1989-06-06 | Rand, Mcnally & Company | Object verification apparatus and method |
EP0276814A3 (en) * | 1987-01-27 | 1990-11-07 | Rand Mcnally & Company | Object verification system and method |
US5068519A (en) * | 1990-01-10 | 1991-11-26 | Brandt, Inc. | Magnetic document validator employing remanence and saturation measurements |
US5254843A (en) * | 1991-08-07 | 1993-10-19 | Hynes John E | Securing magnetically encoded data using timing variations in encoded data |
US5265082A (en) * | 1991-10-03 | 1993-11-23 | International Business Machines Corporation | Rewritable media protectable as written-once-only media and system and method for use therewith |
US5546462A (en) * | 1993-04-09 | 1996-08-13 | Washington University | Method and apparatus for fingerprinting and authenticating various magnetic media |
US5625689A (en) * | 1993-04-09 | 1997-04-29 | Washington University | Method and apparatus for secure data storage and manipulation using magnetic media |
US5365586A (en) * | 1993-04-09 | 1994-11-15 | Washington University | Method and apparatus for fingerprinting magnetic media |
US5408505A (en) * | 1993-04-09 | 1995-04-18 | Washington University | Method and apparatus for process control, tension control, and testing of magnetic media |
US5532584A (en) * | 1993-08-31 | 1996-07-02 | Eastman Kodak Company | MR sensor including calibration circuit wherein signals are averaged for determining a correction factor and pole pieces are shaped to reduce field in gap therebetween |
US5418458A (en) * | 1993-08-31 | 1995-05-23 | Eastman Kodak Company | Apparatus and method for authentication of documents printed with magnetic ink |
US5552589A (en) * | 1993-08-31 | 1996-09-03 | Eastman Kodak Company | Permanent magnet assembly with MR element for detection/authentication of magnetic documents |
US7171016B1 (en) * | 1993-11-18 | 2007-01-30 | Digimarc Corporation | Method for monitoring internet dissemination of image, video and/or audio files |
US6516079B1 (en) | 2000-02-14 | 2003-02-04 | Digimarc Corporation | Digital watermark screening and detecting strategies |
US6614914B1 (en) | 1995-05-08 | 2003-09-02 | Digimarc Corporation | Watermark embedder and reader |
US7007166B1 (en) | 1994-12-28 | 2006-02-28 | Wistaria Trading, Inc. | Method and system for digital watermarking |
US7362775B1 (en) | 1996-07-02 | 2008-04-22 | Wistaria Trading, Inc. | Exchange mechanisms for digital information packages with bandwidth securitization, multichannel digital watermarks, and key management |
US5613004A (en) | 1995-06-07 | 1997-03-18 | The Dice Company | Steganographic method and device |
US7664263B2 (en) | 1998-03-24 | 2010-02-16 | Moskowitz Scott A | Method for combining transfer functions with predetermined key creation |
US5822432A (en) * | 1996-01-17 | 1998-10-13 | The Dice Company | Method for human-assisted random key generation and application for digital watermark system |
US6205249B1 (en) | 1998-04-02 | 2001-03-20 | Scott A. Moskowitz | Multiple transform utilization and applications for secure digital watermarking |
US7177429B2 (en) | 2000-12-07 | 2007-02-13 | Blue Spike, Inc. | System and methods for permitting open access to data objects and for securing data within the data objects |
US5889868A (en) | 1996-07-02 | 1999-03-30 | The Dice Company | Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data |
US7457962B2 (en) | 1996-07-02 | 2008-11-25 | Wistaria Trading, Inc | Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data |
US7095874B2 (en) | 1996-07-02 | 2006-08-22 | Wistaria Trading, Inc. | Optimization methods for the insertion, protection, and detection of digital watermarks in digitized data |
US7346472B1 (en) | 2000-09-07 | 2008-03-18 | Blue Spike, Inc. | Method and device for monitoring and analyzing signals |
US7159116B2 (en) | 1999-12-07 | 2007-01-02 | Blue Spike, Inc. | Systems, methods and devices for trusted transactions |
US7730317B2 (en) | 1996-12-20 | 2010-06-01 | Wistaria Trading, Inc. | Linear predictive coding implementation of digital watermarks |
US5920628A (en) * | 1997-01-09 | 1999-07-06 | Washington University | Method and apparatus for fingerprinting and authenticating various magnetic media |
US7664264B2 (en) | 1999-03-24 | 2010-02-16 | Blue Spike, Inc. | Utilizing data reduction in steganographic and cryptographic systems |
WO2001018628A2 (fr) | 1999-08-04 | 2001-03-15 | Blue Spike, Inc. | Serveur de contenu personnel securise |
US6625297B1 (en) | 2000-02-10 | 2003-09-23 | Digimarc Corporation | Self-orienting watermarks |
US7127615B2 (en) | 2000-09-20 | 2006-10-24 | Blue Spike, Inc. | Security based on subliminal and supraliminal channels for data objects |
FR2819086B1 (fr) * | 2000-11-07 | 2004-09-17 | Vincent Bardini | Authentificateur de billets de banque multi-devises |
US7287275B2 (en) | 2002-04-17 | 2007-10-23 | Moskowitz Scott A | Methods, systems and devices for packet watermarking and efficient provisioning of bandwidth |
WO2006039439A2 (fr) | 2004-09-30 | 2006-04-13 | Cummins-Allison Corp. | Systeme de detection magnetique destine a etre utilise dans le traitement de papier monnaie et procede et appareil l'utilisant |
US7950587B2 (en) * | 2006-09-22 | 2011-05-31 | The Board of Regents of the Nevada System of Higher Education on behalf of the University of Reno, Nevada | Devices and methods for storing data |
US20080084634A1 (en) * | 2006-09-22 | 2008-04-10 | Board Of Regents Of The Nevada System Of Higher Education On Behalf Of The University Nevada | Devices and methods for storing data |
US9679053B2 (en) | 2013-05-20 | 2017-06-13 | The Nielsen Company (Us), Llc | Detecting media watermarks in magnetic field data |
US10103317B2 (en) | 2015-01-05 | 2018-10-16 | Inston, Inc. | Systems and methods for implementing efficient magnetoelectric junctions |
US10217798B2 (en) | 2015-01-13 | 2019-02-26 | Inston, Inc. | Systems and methods for implementing select devices constructed from 2D materials |
US9978931B2 (en) | 2015-02-13 | 2018-05-22 | Inston Inc. | Systems and methods for implementing robust magnetoelectric junctions |
US20170033281A1 (en) * | 2015-07-29 | 2017-02-02 | Inston Inc. | Systems and Methods for Implementing Magnetoelectric Junctions Including Integrated Magnetization Components |
CN109690675B (zh) | 2016-06-28 | 2022-11-04 | 赢世通股份有限公司 | 一种可应用于磁电隧道结的新型字线脉冲写入方法 |
US10861527B2 (en) | 2017-06-27 | 2020-12-08 | Inston, Inc. | Systems and methods for optimizing magnetic torque and pulse shaping for reducing write error rate in magnetoelectric random access memory |
US10460786B2 (en) | 2017-06-27 | 2019-10-29 | Inston, Inc. | Systems and methods for reducing write error rate in magnetoelectric random access memory through pulse sharpening and reverse pulse schemes |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2157346A5 (fr) * | 1971-10-13 | 1973-06-01 | Burroughs Corp | |
GB1331604A (en) * | 1969-11-14 | 1973-09-26 | Emi Ltd | Magnetic information storage means |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR838421A (fr) * | 1937-05-27 | 1939-03-06 | Ibm | Moyens et méthode de calcul |
US3627934A (en) * | 1969-04-09 | 1971-12-14 | Micro Magnetic Ind Inc | Method and apparatus for verifying magnetic records |
GB1304531A (fr) * | 1970-01-06 | 1973-01-24 | ||
FR2082038A5 (fr) * | 1970-02-06 | 1971-12-10 | Lafarge Ciments Sa | |
US3927393A (en) * | 1973-05-02 | 1975-12-16 | Minnesota Mining & Mfg | Magnetic record medium authentication system |
US3873975A (en) * | 1973-05-02 | 1975-03-25 | Minnesota Mining & Mfg | System and method for authenticating and interrogating a magnetic record medium |
-
1974
- 1974-07-04 GB GB29663/74A patent/GB1519142A/en not_active Expired
-
1975
- 1975-06-27 DE DE19752529276 patent/DE2529276A1/de not_active Withdrawn
- 1975-07-02 US US05/592,669 patent/US4038596A/en not_active Expired - Lifetime
- 1975-07-03 FR FR7520896A patent/FR2277385A1/fr active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1331604A (en) * | 1969-11-14 | 1973-09-26 | Emi Ltd | Magnetic information storage means |
FR2157346A5 (fr) * | 1971-10-13 | 1973-06-01 | Burroughs Corp |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2471633A1 (fr) * | 1979-12-11 | 1981-06-19 | Anvar | Procede et appareil de reconnaissance d'un marquage magnetique et application aux papiers de securite |
FR2561427A1 (fr) * | 1984-03-13 | 1985-09-20 | Crouzet Sa | Procede d'identification de la nature d'un support magnetisable |
EP0702339A1 (fr) * | 1994-09-13 | 1996-03-20 | Eastman Kodak Company | Procédé de validation de billets ou de documents en utilisant un modèle magnétique sensible à la température |
Also Published As
Publication number | Publication date |
---|---|
GB1519142A (en) | 1978-07-26 |
DE2529276A1 (de) | 1976-01-22 |
US4038596A (en) | 1977-07-26 |
FR2277385B1 (fr) | 1981-05-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
TP | Transmission of property |