JPH04505066A - 磁気書類確認装置 - Google Patents
磁気書類確認装置Info
- Publication number
- JPH04505066A JPH04505066A JP91502846A JP50284691A JPH04505066A JP H04505066 A JPH04505066 A JP H04505066A JP 91502846 A JP91502846 A JP 91502846A JP 50284691 A JP50284691 A JP 50284691A JP H04505066 A JPH04505066 A JP H04505066A
- Authority
- JP
- Japan
- Prior art keywords
- signal
- document
- residual
- head
- generating
- 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
- 238000012795 verification Methods 0.000 title description 18
- 230000005389 magnetism Effects 0.000 claims description 30
- 238000005259 measurement Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 15
- 229920006395 saturated elastomer Polymers 0.000 claims description 14
- 230000004044 response Effects 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims 3
- 239000003990 capacitor Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 13
- 230000005415 magnetization Effects 0.000 description 8
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000012790 confirmation Methods 0.000 description 3
- 230000004907 flux Effects 0.000 description 2
- 238000009738 saturating Methods 0.000 description 2
- 101100219315 Arabidopsis thaliana CYP83A1 gene Proteins 0.000 description 1
- 241000252233 Cyprinus carpio Species 0.000 description 1
- 101100269674 Mus musculus Alyref2 gene Proteins 0.000 description 1
- 101100140580 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) REF2 gene Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- BLQJIBCZHWBKSL-UHFFFAOYSA-L magnesium iodide Chemical compound [Mg+2].[I-].[I-] BLQJIBCZHWBKSL-UHFFFAOYSA-L 0.000 description 1
- 229910001641 magnesium iodide Inorganic materials 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1215—Measuring magnetisation; Particular magnetometers therefor
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Inspection Of Paper Currency And Valuable Securities (AREA)
- Hard Magnetic Materials (AREA)
- Measuring Magnetic Variables (AREA)
- Devices For Checking Fares Or Tickets At Control Points (AREA)
Abstract
Description
Claims (23)
- 1.磁化可能なインクによって少なくとも部分的に印刷された書類の真性を決定 する装置であって、前記インクによって印刷された書類の部分の飽和磁気の計測 として第1の信号を生成する手段と、前記部分の残留磁気の計測として第2の信 号を生成する手段と、前記書類の真性の表示を規定するために前記第1及び第2 の信号を比較する手段とを包含する装置。
- 2.前記比較手段が各々前記信号の割合を決定する手段を具備する請求の範囲1 に記載の装置。
- 3.前記第2の信号が前記第1の信号より大きい値のとき前記比較手段に応答し て懐疑信号を生成する手段を具備する請求の範囲1に記載の装置。
- 4.前記比較手段が前記第1の信号を最大振幅基準信号及び最小振幅基準信号と 比較するための手段を包含し、前記装置は、前記第1の信号が前記最大基準信号 より大きいとき及び前記第1の信号が前記最小基準信号より小さいときに前記比 較手段に応答して懐疑信号を生成する手段を具備する請求の範囲1に記載の装置 。
- 5.前記比較手段が前記第1の信号を最大振幅基準信号及び最小振幅基準信号と 比較するための手段を具備し、前記装置は、前記第1の信号が前記最大基準信号 より大きいとき、又は前記第1の信号が前記最小基準信号より小さいとき、又は 前記第2の信号が前記第1の信号より大きいときに前記比較手段に応答して懐疑 信号を生成する手段を包含する請求の範囲1に記載の装置。
- 6.前記第2の信号を生成する手段が、疑わしい書類に対しては前記第1の信号 レベルより大きいレベルで第2の信号を生成し、真性書類に対しては前記第1の 信号レベルより小さいレベルで該第2の信号とする係数によって初期残留信号を 増幅する手段を具備する請求の範囲1に記載の装置。
- 7.磁化可能なインクによって少なくとも部分的に印刷された書類の真性を決定 する装置であって、前記インクによって印刷された書類の部分の飽和磁気の計測 として第1の信号を生成する手段と、前記書類の前記部分の残留磁気の計測とし て初期残留信号を生成する手段と、疑わしい書類に対しては前記第1の信号レベ ルより大きいレベルで第2の信号を生成し、真性書類に対しては前記第1の信号 レベルより小さいレベルで該第2の信号とする係数によって前記初期残留信号を 増幅する手段と、前記第1及び第2の信号を比較する手段と、前記第2の信号が 前記第1の信号より大きい値のときに前記比較手段と応答して懐疑信号を生成す る手段とを包含する装置。
- 8.前記第1の信号を最大基準信号及び最小基準信号と比較する手段とを包含し 、該比較する手段は、前記第1の信号が前記最大基準信号より大きいとき、又は 前記第1の信号が前記最小基準信号より小さいときに前記比較手段に応答して懐 疑信号を生成する請求の範囲7に記載の装置。
- 9.前記初期信号生成手段の各々は磁気ヘッドと、前記書類と該ヘッド間の相対 的な動きをもたらす手段とを具備する請求の範囲7に記載の装置。
- 10.前記第1信号生成手段は磁気ヘッドを具備し、該磁気ヘッドがコイルと、 前記書類と該ヘッド間の相対的な動きをもたらす手段と、前記インクを磁化する 該コイルに電流を印加する手段と、該コイルからの出力電圧を計測する手段とを 有する請求の範囲7に記載の装置。
- 11.前記ヘッドが第1のヘッドであり、前記初期残留磁気信号を生成する手段 が、該第1のヘッドと近接して配置される第2の磁気ヘッドを具備する請求の範 囲10に記載の装置。
- 12.前記各ヘッドが、前記書類と前記ヘッドの相対的な移動方向と関連して、 互いに横に配置される請求の範囲11に記載の装置。
- 13.前記第2のヘッドが、前記書類と前記ヘッドの相対的な移動方向と関連し て、前記第1のヘッドより下位置に配置される請求の範囲11に記載の装置。
- 14.各前記信号生成手段が、前記書類部分を走査して双方向磁気信号を生成す る手段と、双方向磁気信号を非双方向磁気信号に変換する手段とを有する請求の 範囲21に記載の装置。
- 15.前記磁気信号を積分する手段を包含する請求の範囲14に記載の装置。
- 16.前記磁気ヘッドにて前記書類の状態を感知する手段と、該感知手段に応答 して前記積分手段を使用可能とする手段とを包含する請求の範囲15に記載の装 置。
- 17.磁化可能なインクによって少なくとも部分的に印刷された書類の真性を決 定する方法であって、前記インクによって印刷された書類の部分の飽和磁気を計 測する工程と、前記書類部分の残留磁気を計測する工程と、前記書類の真性表示 を与えるために前記残留磁気計測値を前記飽和磁気計測値と比較する工程とを包 含する方法。
- 18.前記比較工程が、前記飽和磁気計測値に対する前記残留磁気計測値の割合 を決定する工程を具備する請求の範囲17に記載の方法。
- 19.前記残留磁気を計測する工程は、初期残留計測値を与える工程と、疑わし い書類に対しては前記飽和磁気計測値より大きい増幅された残留磁気計測値、ま た真性書類に対しては前記飽和磁気計測値より小さい増幅された残留磁気計測値 を生成する係数によって前記初期残留計測値を増幅する工程とを具備する請求の 範囲17に記載の方法。
- 20.前記比較工程は、前記飽和残留計測値に対する前記増幅された残留磁気計 測値の割合を決定する工程を具備する請求の範囲19に記載の方法。
- 21.前記飽和磁気計測値が第1の基準値より小さいとき、又は前記飽和磁気計 測値が第2の基準値より大きいとき、又は前記残留計測値が前記飽和磁気計測値 より大きいときに懐疑表示を生成する工程を包含する請求の範囲20に記載の方 法。
- 22.各前記計測する工程は、コイルを有するピックアップヘッドを通過する前 記書類部分を動かす工程と、前記コイルの出力を計測する工程と、前記コイル出 力を整流する工程と、前記書類が前記ヘッドを通って移動の間の予め決められた 時間にわたって前記整流された出力を積分する工程とを具備する請求の範囲19 に記載の方法。
- 23.前記比較工程は、前記積分された出力を比較する工程と、前記積分された 残留磁気出力が前記積分された飽和磁気出力を越えるときに懐疑信号を生成する 工程とを具備する請求の範囲22に記載の方法。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/463,316 US5068519A (en) | 1990-01-10 | 1990-01-10 | Magnetic document validator employing remanence and saturation measurements |
US463,316 | 1990-01-10 | ||
PCT/US1990/007474 WO1991010902A1 (en) | 1990-01-10 | 1990-12-24 | Magnetic document validator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH04505066A true JPH04505066A (ja) | 1992-09-03 |
JP3057645B2 JP3057645B2 (ja) | 2000-07-04 |
Family
ID=23839675
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3502846A Expired - Fee Related JP3057645B2 (ja) | 1990-01-10 | 1990-12-24 | 磁気書類確認装置 |
Country Status (11)
Country | Link |
---|---|
US (1) | US5068519A (ja) |
EP (1) | EP0462260B1 (ja) |
JP (1) | JP3057645B2 (ja) |
AT (1) | ATE199459T1 (ja) |
AU (1) | AU631095B2 (ja) |
BR (1) | BR9007205A (ja) |
CA (1) | CA2048632A1 (ja) |
DE (1) | DE69033708T2 (ja) |
ES (1) | ES2156583T3 (ja) |
MX (1) | MX172207B (ja) |
WO (1) | WO1991010902A1 (ja) |
Families Citing this family (84)
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US8417017B1 (en) | 2007-03-09 | 2013-04-09 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8538123B1 (en) | 2007-03-09 | 2013-09-17 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8478019B1 (en) | 2009-04-15 | 2013-07-02 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8929640B1 (en) | 2009-04-15 | 2015-01-06 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US8391583B1 (en) | 2009-04-15 | 2013-03-05 | Cummins-Allison Corp. | Apparatus and system for imaging currency bills and financial documents and method for using the same |
US9141876B1 (en) | 2013-02-22 | 2015-09-22 | Cummins-Allison Corp. | Apparatus and system for processing currency bills and financial documents and method for using the same |
CN105548922B (zh) * | 2015-12-15 | 2018-06-19 | 河海大学 | 一种精确测定取向硅钢片饱和磁化强度的方法 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3599153A (en) * | 1969-05-23 | 1971-08-10 | United States Banknote Corp | Magnetic authentication of security documents having varying ink level coding |
US3796859A (en) * | 1971-12-27 | 1974-03-12 | Ibm | Magnetic ink recording system to both magnetize and read ink |
GB1519142A (en) * | 1974-07-04 | 1978-07-26 | Emi Ltd | Detection of magnetic patterns |
GB2130414A (en) * | 1982-11-18 | 1984-05-31 | Portals Ltd | Security documents and verification thereof |
US4617458A (en) * | 1985-02-11 | 1986-10-14 | Brandt, Inc. | Counterfeit detection circuit |
US4764725A (en) * | 1986-09-12 | 1988-08-16 | Brandt, Inc. | Apparatus for detecting counterfeit currency using two coils to produce a saturating magnetic field |
US4806740A (en) * | 1986-09-19 | 1989-02-21 | Light Signatures, Inc. | Magnetic characteristic identification system |
DE3738455A1 (de) * | 1986-11-25 | 1988-06-01 | Landis & Gyr Ag | Anordnung zum messen eines flussarmen magnetfeldes |
US4807287A (en) * | 1987-04-06 | 1989-02-21 | Light Signatures, Inc. | Document authentication method |
SE458315B (sv) * | 1987-06-12 | 1989-03-13 | Inter Innovation Ab | Anordning foer detektering av dokument |
-
1990
- 1990-01-10 US US07/463,316 patent/US5068519A/en not_active Expired - Lifetime
- 1990-12-24 CA CA002048632A patent/CA2048632A1/en not_active Abandoned
- 1990-12-24 BR BR909007205A patent/BR9007205A/pt unknown
- 1990-12-24 ES ES91902417T patent/ES2156583T3/es not_active Expired - Lifetime
- 1990-12-24 JP JP3502846A patent/JP3057645B2/ja not_active Expired - Fee Related
- 1990-12-24 EP EP91902417A patent/EP0462260B1/en not_active Expired - Lifetime
- 1990-12-24 DE DE69033708T patent/DE69033708T2/de not_active Expired - Fee Related
- 1990-12-24 AU AU71644/91A patent/AU631095B2/en not_active Expired - Fee Related
- 1990-12-24 WO PCT/US1990/007474 patent/WO1991010902A1/en active IP Right Grant
- 1990-12-24 AT AT91902417T patent/ATE199459T1/de not_active IP Right Cessation
-
1991
- 1991-01-08 MX MX024091A patent/MX172207B/es unknown
Also Published As
Publication number | Publication date |
---|---|
DE69033708D1 (de) | 2001-04-05 |
AU631095B2 (en) | 1992-11-12 |
EP0462260A4 (en) | 1996-10-23 |
DE69033708T2 (de) | 2001-09-20 |
ES2156583T3 (es) | 2001-07-01 |
AU7164491A (en) | 1991-08-05 |
US5068519A (en) | 1991-11-26 |
EP0462260B1 (en) | 2001-02-28 |
MX172207B (es) | 1993-12-06 |
BR9007205A (pt) | 1992-02-18 |
JP3057645B2 (ja) | 2000-07-04 |
ATE199459T1 (de) | 2001-03-15 |
CA2048632A1 (en) | 1991-07-11 |
WO1991010902A1 (en) | 1991-07-25 |
EP0462260A1 (en) | 1991-12-27 |
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