JP2001043502A - Magnetic card and its use method - Google Patents
Magnetic card and its use methodInfo
- Publication number
- JP2001043502A JP2001043502A JP11212360A JP21236099A JP2001043502A JP 2001043502 A JP2001043502 A JP 2001043502A JP 11212360 A JP11212360 A JP 11212360A JP 21236099 A JP21236099 A JP 21236099A JP 2001043502 A JP2001043502 A JP 2001043502A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- fixed data
- frequency
- magnetic card
- written
- 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.)
- Withdrawn
Links
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- Signal Processing For Digital Recording And Reproducing (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、磁気カード及びそ
の使用方法に関し、特に、偽造、変造を防止した磁気カ
ード及びその使用方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic card and a method of using the same, and more particularly, to a magnetic card in which forgery and alteration are prevented and a method of using the same.
【０００２】[0002]
【従来の技術】従来、図３（ａ）に示すように、磁気カ
ード２１では、使用する度に磁気トラックに磁気情報を
書き換えることで、残度数を変更している。また、別な
磁気トラック２２では、固定データを書き込み、残度数
に応じて固定データが書き込まれた磁気トラック上にパ
ンチ穴２３を開け、残度数を物理的に表示している。2. Description of the Related Art Conventionally, as shown in FIG. 3A, in a magnetic card 21, the number of remaining times is changed by rewriting magnetic information on a magnetic track each time the card is used. In another magnetic track 22, fixed data is written, and a punched hole 23 is opened on the magnetic track on which the fixed data is written according to the remaining number, and the remaining number is physically displayed.
【０００３】従って、残度数が減少したり、残度数がな
くなった磁気カード２１の磁気情報を書き換えるという
偽造、変造に対して、固定データが書き込まれた磁気ト
ラック２２上のパンチ穴２３があれば、その位置を検出
して磁気情報と比較し、磁気カード２１の真偽を判定す
るシステムが運用されている。[0005] Therefore, if the punched hole 23 on the magnetic track 22 on which the fixed data is written is provided in response to counterfeiting or alteration in which the residual number is reduced or the magnetic information of the magnetic card 21 whose residual number is lost is rewritten. A system is operated in which the position is detected and compared with magnetic information to determine the authenticity of the magnetic card 21.
【０００４】[0004]
【発明が解決しようとする課題】しかし、上述した従来
の真偽を判定するシステムでは、図３（ｂ）に示すよう
に、固定データの磁気トラック２２において、パンチ穴
２３の開いている場所を含んで帯状に切断し、再度磁気
カードを構成し、切断した幅だけ短くなった磁気カード
に対して、その分だけ補充し、寸法補正された部分２５
を設けることにより、偽造、変造されてしまう。However, in the above-mentioned conventional system for judging the authenticity, as shown in FIG. 3B, the location where the punched hole 23 is opened in the magnetic track 22 of the fixed data is determined. Then, the magnetic card is cut again into a strip shape, and the magnetic card is formed again.
Forgery and falsification are provided by providing.
【０００５】その理由は、固定データを書き込む磁気ト
ラックの巾に対して、読み取りの磁気ヘッドは、磁気ト
ラック２２の幅の１／３程度のものを使用しており、上
述のような変造が行われると、磁気トラックの幅は、切
断された寸法だけ短くなるが、読み取り磁気ヘッドの位
置に正常な固定データ２４が存在してしまうという問題
があった。[0005] The reason is that the read magnetic head uses about one third of the width of the magnetic track 22 with respect to the width of the magnetic track on which the fixed data is written. In this case, the width of the magnetic track is reduced by the cut dimension, but there is a problem that normal fixed data 24 exists at the position of the read magnetic head.
【０００６】従って、本発明は、上記の課題を解決し、
偽造、変造による不正使用に対して、より確実に防止す
ることができる磁気カード及びその使用方法を提供する
ことにある。Therefore, the present invention solves the above-mentioned problems,
It is an object of the present invention to provide a magnetic card and a method of using the same, which can more reliably prevent forgery and falsification of illegal use.
【０００７】[0007]
【課題を解決するための手段】本発明によれば、磁気カ
ードの固定データにおいて、固定データの書き込まれた
磁気トラック上に、残度数に応じて開けられるパンチ穴
の位置を検出して、磁気情報と比較して、磁気カードの
真偽が判定できるシステムにおいて、磁気トラックの中
央部を、パンチ穴を含んで帯状に除去し、その後再生す
る偽造、変造に対して、第１の周波数にて固定データを
書き込み、その上に第２の周波数の固定データを上書き
をし、読み取り磁気ヘッドにより、磁気トラックの中央
部の固定データを読み取り、磁気情報と比較して偽造、
変造の判定ができる。According to the present invention, in a fixed data of a magnetic card, a position of a punch hole to be opened according to a residual number is detected on a magnetic track on which the fixed data is written, and the magnetic data is detected. In a system in which the authenticity of a magnetic card can be determined by comparing it with information, a central portion of a magnetic track is removed in a band shape including a punched hole, and then forgery or alteration to be reproduced at a first frequency. Write fixed data, overwrite fixed data of the second frequency on it, read the fixed data at the center of the magnetic track by the read magnetic head, compare with the magnetic information, forge,
You can judge falsification.
【０００８】即ち、本発明は、固定データを磁気記録す
るための磁気トラックを有する磁気カードにおいて、前
記磁気トラックに第１の周波数にて固定データを書き込
み、該磁気トラックの中央部に再度、前記磁気トラック
の約１／３の幅で、前記第１の周波数より高い第２の周
波数にて固定データを書き込んで記録したことを特徴と
する磁気カードである。That is, according to the present invention, in a magnetic card having a magnetic track for magnetically recording fixed data, fixed data is written to the magnetic track at a first frequency, and the magnetic data is again written to the center of the magnetic track. A magnetic card wherein fixed data is written and recorded at a second frequency higher than the first frequency at a width of about 1/3 of a magnetic track.
【０００９】また、本発明は、固定データを磁気記録す
るための磁気トラックを有する磁気カードにおいて、前
記磁気トラックに第１の周波数にて固定データを書き込
み、前記磁気トラックの端部側に再度、前記磁気トラッ
クの約１／３の幅で、前記第１の周波数より高い第２の
周波数にて固定データを書き込んで記録したことを特徴
とする磁気カードである。Further, according to the present invention, in a magnetic card having a magnetic track for magnetically recording fixed data, fixed data is written to the magnetic track at a first frequency, and the data is again written to the end of the magnetic track. A magnetic card wherein fixed data is written and recorded at a second frequency higher than the first frequency with a width of about 1/3 of the magnetic track.
【００１０】また、本発明は、前記磁気トラックの中央
部に書き込んだ固定データを磁気ヘッドにて読み取り、
第１又は第２の周波数にて書き込んだ固定データである
かどうかで真偽を判別することを特徴とする上記の磁気
カードの使用方法である。Further, according to the present invention, the fixed data written at the center of the magnetic track is read by a magnetic head,
A method of using the magnetic card as described above, wherein the authenticity is determined based on whether the data is fixed data written at the first or second frequency.
【００１１】[0011]
【発明の実施の形態】（実施の形態１）図１に示すよう
に、固定データを磁気記録するための磁気トラック２を
もつ磁気カードにおいて、この磁気トラック２に第１の
周波数にて固定データ２ａを書き込む。書き込まれた磁
気トラック２の中央部に再度、磁気トラックの約１／３
の幅で、第１の周波数より高い第２の周波数にて固定デ
ータ２ｂを書き込み、新たな固定データとする。この固
定データ２ｂの部分を、読み取り磁気ヘッドにて読み取
ることにより、偽造、変造が防止できる。DESCRIPTION OF THE PREFERRED EMBODIMENTS (Embodiment 1) As shown in FIG. 1, in a magnetic card having a magnetic track 2 for magnetically recording fixed data, a fixed data is recorded on the magnetic track 2 at a first frequency. Write 2a. At the center of the written magnetic track 2 again, about 1/3 of the magnetic track
The fixed data 2b is written at a second frequency higher than the first frequency with the width of, and is set as new fixed data. By reading the fixed data 2b with a read magnetic head, forgery and alteration can be prevented.
【００１２】（実施の形態２）図２に示すように、固定
データを磁気記録するための磁気トラック１２をもつ磁
気カードにおいて、この磁気トラック１２に第１の周波
数にて固定データ１２ａを書き込む。書き込まれた磁気
トラック１２に再度、磁気トラックの約１／３の幅で、
磁気カードの端部側に第１の周波数より高い第２の周波
数にて固定データ１２ｂを書き込み、新たな固定データ
とする。磁気トラック１２の中央部に書き込まれた第１
の周波数の固定データ１２ｂの部分を、読み取り磁気ヘ
ッドにて読み取ることにより、偽造、変造が防止でき
る。(Embodiment 2) As shown in FIG. 2, in a magnetic card having a magnetic track 12 for magnetically recording fixed data, fixed data 12a is written to the magnetic track 12 at a first frequency. Again on the written magnetic track 12, with a width of about 1/3 of the magnetic track,
The fixed data 12b is written to the end of the magnetic card at a second frequency higher than the first frequency to be new fixed data. The first written in the center of the magnetic track 12
Forgery and falsification can be prevented by reading the portion of the fixed data 12b of the frequency with the read magnetic head.
【００１３】[0013]
【実施例】以下、本発明の実施例について、図面を参照
しながら説明する。Embodiments of the present invention will be described below with reference to the drawings.
【００１４】（実施例１）図１に、本発明の実施例１に
おける磁気カードの磁気トラックの書き込みの概略を示
す。図１に示すように、磁気カード１は、ＰＥＴフィル
ム等の片面の全面に、磁気記録材料が塗布されている。
最初に、３．２ｍｍの書き込み磁気ヘッドを用いて、磁
気カード１の端部より長さＬｍｍの位置を中心にして、
周波数３ｋＨｚにて固定データ２ａを書き込んだ。(Embodiment 1) FIG. 1 schematically shows writing of a magnetic track on a magnetic card according to Embodiment 1 of the present invention. As shown in FIG. 1, the magnetic card 1 has a magnetic recording material applied to the entire surface of one surface such as a PET film.
First, using a 3.2 mm write magnetic head, centering on a position having a length L mm from the end of the magnetic card 1,
Fixed data 2a was written at a frequency of 3 kHz.
【００１５】次に、１．０ｍｍの書き込み磁気ヘッドを
用いて、磁気カード１の端部より長さＬｍｍの位置を中
心に周波数６ｋＨｚにて固定データ２ｂを上書きした。
上書きの際、周波数３ｋＨｚでの固定データは消え、周
波数６ｋＨｚの固定データ２ｂのみが残るように書き込
んだ。Next, using a 1.0-mm write magnetic head, the fixed data 2b was overwritten at a frequency of 6 kHz centering on a position having a length L mm from the end of the magnetic card 1.
At the time of overwriting, the data was written so that the fixed data at the frequency of 3 kHz disappeared and only the fixed data 2b at the frequency of 6 kHz remained.
【００１６】読み取り磁気ヘッドは、０．８ｍｍのもの
を使用し、読み取り磁気ヘッドの位置は、磁気カードの
端部より長さＬｍｍを中心に設定した。また、パンチ穴
は、１．２ｍｍで、位置は、磁気カードの端部より長さ
Ｌｍｍを中心とし、磁気カード使用時に開け、また残度
数の区切りとして指定の距離に開けた。The read magnetic head used was 0.8 mm, and the position of the read magnetic head was set centered on the length L mm from the end of the magnetic card. The punch hole was 1.2 mm, and the position was centered on the length L mm from the end of the magnetic card, opened when using the magnetic card, and opened at a specified distance as a break of the residual number.
【００１７】上記の正常な磁気カードと、上記の磁気カ
ードを図３に示すように変造を施した磁気カードに対し
て、０．８ｍｍの読み取り磁気ヘッドを用いて、磁気カ
ードの端部より長さＬｍｍの位置にて出力波形を比較し
た。The above-mentioned normal magnetic card and the magnetic card obtained by modifying the above-mentioned magnetic card as shown in FIG. 3 are longer than the end of the magnetic card by using a 0.8 mm read magnetic head. The output waveforms were compared at the position of Lmm.
【００１８】正常な磁気カードの固定データでは、周波
数６ｋＨｚの出力波形が観察され、また変造した磁気カ
ードでは、３ｋＨｚの出力波形が観察された。従って、
磁気カードの偽造、変造の真偽の判定ができた。An output waveform at a frequency of 6 kHz was observed with fixed data of a normal magnetic card, and an output waveform at a frequency of 3 kHz was observed with a modified magnetic card. Therefore,
It was possible to judge the forgery or falsification of the magnetic card.
【００１９】（実施例２）図２に、本発明の実施例２に
おける磁気カードの磁気トラックの書き込みの概略を示
す。磁気カードは、本発明の実施例１と同じものを使用
した。また、固定データの書き込む位置も同様とした。(Embodiment 2) FIG. 2 shows an outline of writing on a magnetic track of a magnetic card according to Embodiment 2 of the present invention. The magnetic card used was the same as that used in Example 1 of the present invention. The same applies to the position where the fixed data is written.
【００２０】図２に示すように、最初に、３．２ｍｍの
書き込み磁気ヘッドを用いて、磁気カードの端面より長
さＬｍｍの位置を中心として、周波数３ｋＨｚにて固定
データ１２ａを書き込んだ。次に、１．０ｍｍの書き込
み磁気ヘッドを用いて、磁気カードより（Ｌ−１．１）
ｍｍを中心に、周波数６ｋＨｚにて固定データ１２ｂを
上書きした。As shown in FIG. 2, first, using a 3.2-mm write magnetic head, fixed data 12a was written at a frequency of 3 kHz, centered on a position L mm from the end face of the magnetic card. Next, using a write magnetic head of 1.0 mm, the magnetic card was used to write (L-1.1)
The fixed data 12b was overwritten at a frequency of 6 kHz around mm.
【００２１】読み取り磁気ヘッドは、０．８ｍｍのもの
を使用し、読み取り磁気ヘッドの位置は、磁気カードの
端面よりＬｍｍを中心に設定した。また、パンチ穴は
１．２ｍｍとし、位置は、磁気カードの端部より長さＬ
ｍｍを中心とし、磁気カードの使用時に開け、また、残
度数の区切りに指定の距離に開けた。The read magnetic head used was 0.8 mm, and the position of the read magnetic head was set about L mm from the end face of the magnetic card. The punched hole is 1.2 mm, and the position is a length L from the end of the magnetic card.
The center was opened at the time of use of the magnetic card, and at a specified distance to separate the residual number.
【００２２】上記の正常な磁気カードと、上記の磁気カ
ードに図３に示すような変造を施した磁気カードに対し
て、０.８ｍｍの読み取り磁気ヘッドを用いて、磁気カ
ードの端部より長さＬｍｍの位置にて出力波形を比較し
た。The above-mentioned normal magnetic card and the magnetic card obtained by modifying the above-mentioned magnetic card as shown in FIG. 3 are read from the end of the magnetic card by using a 0.8 mm read magnetic head. The output waveforms were compared at the position of Lmm.
【００２３】正常な磁気カードの固定データでは、周波
数３ｋＨｚの出力波形が観測され、また変造した磁気カ
ードでは、６ｋＨｚの出力波形が観測された。従って、
磁気カードの偽造、変造の真偽が判定できた。In the fixed data of the normal magnetic card, an output waveform of a frequency of 3 kHz was observed, and in the altered magnetic card, an output waveform of 6 kHz was observed. Therefore,
The forgery or falsification of the magnetic card could be determined.
【００２４】[0024]
【発明の効果】以上説明したごとく、本発明によれば、
偽造、変造による不正使用に対して、より確実に防止す
ることができる磁気カード及びその使用方法を提供する
ことができた。As described above, according to the present invention,
The present invention has provided a magnetic card and a method of using the same that can more reliably prevent counterfeiting and alteration from being illegally used.
【図１】本発明の実施の形態１における磁気カードの磁
気トラックの書き込みの概略を示す説明図。図１（ａ）
は、平面図。図１（ｂ）は、図１（ａ）のＡ部の部分拡
大図。FIG. 1 is an explanatory diagram schematically showing writing of a magnetic track of a magnetic card according to a first embodiment of the present invention. FIG. 1 (a)
Is a plan view. FIG. 1B is a partially enlarged view of a portion A in FIG.
【図２】本発明の実施の形態２における磁気カードの磁
気トラックの書き込みの概略を示す説明図。図２（ａ）
は、平面図。図２（ｂ）は、図２（ａ）のＢ部の部分拡
大図。FIG. 2 is an explanatory diagram schematically showing writing of a magnetic track of a magnetic card according to a second embodiment of the present invention. FIG. 2 (a)
Is a plan view. FIG. 2B is a partially enlarged view of a portion B in FIG. 2A.
【図３】従来の磁気カードの磁気トラックの書き込みの
概略を示す説明図。図３（ａ）は、平面図。図３（ｂ）
は、図３（ａ）のＣ部の部分拡大図。FIG. 3 is an explanatory view schematically showing writing of a magnetic track of a conventional magnetic card. FIG. 3A is a plan view. FIG. 3 (b)
3 is a partially enlarged view of a portion C in FIG.
１ 磁気カード ２ 磁気トラック ２ａ （第１の周波数の）固定データ ２ｂ （第２の周波数の）固定データ １１ 磁気カード １２ 磁気トラック １２ａ （第１の周波数の）固定データ １２ｂ （第２の周波数の）固定データ ２１ 磁気カード ２２ 磁気トラック ２３ パンチ穴 ２４ （変造後の）固定データ ２５ （変造時に）寸法補正された部分 Reference Signs List 1 magnetic card 2 magnetic track 2a fixed data (of first frequency) 2b fixed data (of second frequency) 11 magnetic card 12 magnetic track 12a fixed data (of first frequency) 12b (of second frequency) Fixed data 21 Magnetic card 22 Magnetic track 23 Punched hole 24 Fixed data (after modification) 25 (when modified) Dimension corrected part
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 5D044 BC01 CC08 DE72 5D091 AA12 BB06 CC30 FF10 GG40 HH01 JJ21 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 5D044 BC01 CC08 DE72 5D091 AA12 BB06 CC30 FF10 GG40 HH01 JJ21
Claims (3)
ラックを有する磁気カードにおいて、前記磁気トラック
に第１の周波数にて固定データを書き込み、該磁気トラ
ックの中央部に再度、前記磁気トラックの約１／３の幅
で、前記第１の周波数より高い第２の周波数にて固定デ
ータを書き込んで記録したことを特徴とする磁気カー
ド。In a magnetic card having a magnetic track for magnetically recording fixed data, fixed data is written to the magnetic track at a first frequency, and about a center of the magnetic track is re-applied. A magnetic card wherein fixed data is written and recorded at a second frequency higher than the first frequency with a width of 1/3.
ラックを有する磁気カードにおいて、前記磁気トラック
に第１の周波数にて固定データを書き込み、前記磁気ト
ラックの端部側に再度、前記磁気トラックの約１／３の
幅で、前記第１の周波数より高い第２の周波数にて固定
データを書き込んで記録したことを特徴とする磁気カー
ド。2. A magnetic card having a magnetic track for magnetically recording fixed data, wherein the fixed data is written on the magnetic track at a first frequency, and the magnetic track of the magnetic track is again written to the end of the magnetic track. A magnetic card wherein fixed data is written and recorded at a second frequency higher than the first frequency with a width of about 1/3.
固定データを磁気ヘッドにて読み取り、第１又は第２の
周波数にて書き込んだ固定データであるかどうかで真偽
を判別することを特徴とする請求項１又は２記載の磁気
カードの使用方法。3. The method according to claim 1, wherein the fixed data written at the center of the magnetic track is read by a magnetic head, and whether the data is fixed data written at a first or second frequency is determined. A method for using the magnetic card according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11212360A JP2001043502A (en) | 1999-07-27 | 1999-07-27 | Magnetic card and its use method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11212360A JP2001043502A (en) | 1999-07-27 | 1999-07-27 | Magnetic card and its use method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001043502A true JP2001043502A (en) | 2001-02-16 |
Family
ID=16621270
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11212360A Withdrawn JP2001043502A (en) | 1999-07-27 | 1999-07-27 | Magnetic card and its use method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001043502A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1511012A1 (en) * | 2002-05-31 | 2005-03-02 | Leisure Electronics Technology Co., Ltd. | Magnetic recording medium authentication method, magnetic recording medium authentication system, and authenticable magnetic recording medium |
-
1999
- 1999-07-27 JP JP11212360A patent/JP2001043502A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1511012A1 (en) * | 2002-05-31 | 2005-03-02 | Leisure Electronics Technology Co., Ltd. | Magnetic recording medium authentication method, magnetic recording medium authentication system, and authenticable magnetic recording medium |
| EP1511012A4 (en) * | 2002-05-31 | 2006-05-24 | Leisure Electronics Technology | Magnetic recording medium authentication method, magnetic recording medium authentication system, and authenticable magnetic recording medium |
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