JPH03169695A - Discrimination structure of information memory card - Google Patents
Discrimination structure of information memory cardInfo
- Publication number
- JPH03169695A JPH03169695A JP1311422A JP31142289A JPH03169695A JP H03169695 A JPH03169695 A JP H03169695A JP 1311422 A JP1311422 A JP 1311422A JP 31142289 A JP31142289 A JP 31142289A JP H03169695 A JPH03169695 A JP H03169695A
- Authority
- JP
- Japan
- Prior art keywords
- card
- light
- identification
- discrimination
- parts
- 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
- 238000003860 storage Methods 0.000 claims description 15
- 230000003287 optical effect Effects 0.000 claims description 7
- 238000005286 illumination Methods 0.000 abstract description 3
- 230000003405 preventing effect Effects 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 abstract 4
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
［発明の目的］
く産業上の利用分野〉
本発明は、リーダライタにて情報の授受を行う磁気カー
ド、ＩＣカード、光カードなどの情報記憶カードが偽造
されることを防止するべくリーダライタにて識別するた
めの情報記憶カードの識別構造に関する。[Detailed Description of the Invention] [Object of the Invention] Industrial Application Fields> The present invention is directed to preventing counterfeiting of information storage cards such as magnetic cards, IC cards, and optical cards that exchange information using a reader/writer. The present invention relates to an identification structure of an information storage card for identification by a reader/writer in order to prevent this.
く従来の技術〉
従来から例えば磁気カードが偽造されることを防止する
べく、磁気層を多層構造としたり、バーコードをカード
の表面に設けたり、また、再使用しない磁気カードにあ
っては、不要となった時に磁気記録面にパンチ孔を穿設
するなどの方法が実施されていた。Conventional technology In order to prevent magnetic cards from being counterfeited, for example, magnetic layers have been made into a multilayer structure, barcodes have been provided on the surface of the card, and magnetic cards that are not reused have had the following techniques: When it is no longer needed, methods such as punching holes in the magnetic recording surface have been implemented.
しかるに、上記各方法では、偽造する側が比較的容易に
その構造を解析し得ると共に比較的安価にカードを偽造
することができる問題があった。However, each of the above-mentioned methods has the problem that the counterfeiter can relatively easily analyze the structure of the card and can counterfeit the card at a relatively low cost.
また、上記各方法に加えてカード及びリーダライタに設
けられる識別構造を複雑化することが考えられるが、製
造コストが高騰化し、かつリーダライタが複雑化、大型
化する問題がある。Additionally, in addition to the above-mentioned methods, it is possible to complicate the identification structure provided on the card and the reader/writer, but this raises the problem of increasing manufacturing costs and making the reader/writer more complex and larger.
〈発明が解決しようとする課題〉
このような従来技術の課題に鑑み、本発明の主な目的は
、偽造することが困難であると共に正規のカードである
ことを識別することが容易な情報記憶カードの識別構造
であって、特にリーダライタ側に設けられた識別装置が
複雑化、大型化することのない情報記憶カードの識別構
造を提供することにある。<Problems to be Solved by the Invention> In view of the problems of the prior art, the main purpose of the present invention is to provide information storage that is difficult to forge and easy to identify as a genuine card. An object of the present invention is to provide an identification structure for an information storage card, in which an identification device provided on a reader/writer side does not become complicated or large.
［発明の構戊］
〈課題を解決するための手段〉
このような目的は本発明によれば、リーダライタにて情
報の授受を行う情報記憶カードの表面に設けられた光学
的識別部と、前記識別部をもって前記カードが正規のカ
ードであるか否かを識別するべく前記リーダライタ側に
設けられると共に前記識別部に向けて投光する投光部と
、前記識別部からの反射光を受光する受光部とを有する
情報記憶カードの識別構造であって、前記受光部が、前
記投光部と一体的に設けられると共に各々別途に受光可
能な互いに区画された複数の部分を有することを特徴と
する情報記憶カードの識別構造を提供することにより達
戊される。[Structure of the Invention] <Means for Solving the Problems> According to the present invention, such an object includes: an optical identification section provided on the surface of an information storage card that transmits and receives information with a reader/writer; a light emitting section provided on the reader/writer side to identify whether or not the card is a regular card using the identification section and emitting light toward the identification section; and a light emitting section that receives reflected light from the identification section. An identification structure for an information storage card having a light-receiving section, wherein the light-receiving section is provided integrally with the light projecting section and has a plurality of mutually partitioned sections each capable of receiving light separately. This is accomplished by providing an identification structure for the information storage card that allows the information to be stored.
く作用〉
このようにすれば、リーダライタが複雑化、大型化する
ことなく偽造が困難な光学的識別構造を容易に情報記憶
カードの識別構造に用いることができる。Effects> In this way, an optical identification structure that is difficult to forge can be easily used for the identification structure of an information storage card without making the reader/writer complicated or large.
〈実施例〉
以下、本発明の好適実施例を添付の図面について詳しく
説明する。<Embodiments> Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.
第１図は本発明に基づく第１の実施例であり、磁気カー
ド１及びカードリーダライタ内の要部構造を模式的に示
す斜視図である。FIG. 1 is a first embodiment based on the present invention, and is a perspective view schematically showing the main structure of a magnetic card 1 and a card reader/writer.
カード１は、′矢印の方向、即ち第１図に於ける略左右
方向に図示されない搬送ローラ等により駆動され、磁気
ヘッド３の位置にてカード１の主面１ａに設けられた磁
気ストライプ２に対して情報の書込み／読出しが行われ
るようになっている。The card 1 is driven by a transport roller (not shown) in the direction of the arrow ', that is, approximately in the left-right direction in FIG. Information is written/read from/to.
一方、カード１の主面１ａの肩部近傍位置には識別部４
が設けられている。この識別部４は、第２図及び第３図
に示すように、想像線Ｒの方向に延在する数本／Ｉｌｌ
ＩＩ１〜数百本／ｍｍの多数の平行なＶ字溝６からなる
。On the other hand, an identification section 4 is located near the shoulder of the main surface 1a of the card 1.
is provided. As shown in FIG. 2 and FIG.
It consists of a large number of parallel V-shaped grooves 6 of 1 to several hundred grooves/mm.
カードリーダライタ側には、カード１が第１図に実線に
示す位置にあるときに主面１ａに直交すると共に識別部
４に対して所定の間隔をもって投光部としてのレーザ光
の発光素子９が設けられている。また、第４図に良く示
すように、発光素子９を囲繞するように、多数の部分］
−〇ａ〜１０ｈに区画された多分割フォトダイオードか
らなる受光部としての受光素子１０が発光素子つと一体
をなすように設けられている。この受光部１０にはカー
ド１が正規のカードであるか否かを識別する識別回路１
１が接続されている。On the card reader/writer side, when the card 1 is in the position shown by the solid line in FIG. is provided. In addition, as clearly shown in FIG. 4, a large number of parts surround the light emitting element 9]
- A light-receiving element 10 as a light-receiving section consisting of a multi-division photodiode divided into 0a to 10h is provided so as to be integrated with one of the light-emitting elements. This light receiving section 10 has an identification circuit 1 that identifies whether the card 1 is a legitimate card or not.
1 is connected.
実際にカード１の識別を行うには、カードリーダライタ
内に挿入されたカード１を発光素子つと直交する位置に
保持し、発光素子９から識別部４に向けて照明光を照射
する。そして、識別部４に反射された光が受光素子１０
の各部分１０ａ〜１０ｈに第４図に示すようなパターン
、即ち各溝６の延在方向（想像線Ｒ）に直交する方向に
延在する楕円パターンとして受光さるので、受光強度の
高い部分（第４図の部分１０ａ、１０ｅ）同士の位置関
係を検知することでカード１が正規のカードであると識
別する。従って、例えばカードを偽造する目的でこのカ
ード１を入手しても、識別部の溝パターンを解析するこ
とが困難であるばかりでなく、同様の識別部を作戒する
のに多大なコストを要することから偽造防止効果が極め
て高くなる。To actually identify the card 1, the card 1 inserted into the card reader/writer is held at a position perpendicular to the light emitting elements 9, and illumination light is emitted from the light emitting elements 9 toward the identification section 4. Then, the light reflected by the identification section 4 is transmitted to the light receiving element 10.
Since the light is received in each part 10a to 10h in a pattern as shown in FIG. Card 1 is identified as a regular card by detecting the positional relationship between parts 10a and 10e) in FIG. Therefore, even if you obtain this card 1 for the purpose of forging a card, for example, it is not only difficult to analyze the groove pattern of the identification part, but also requires a great deal of cost to discipline a similar identification part. Therefore, the anti-counterfeiting effect is extremely high.
第５図は、本発明に基づく第２の実施例を示す。FIG. 5 shows a second embodiment according to the invention.
本実施例では、カード１側の識別部の多数の溝の間隔が
数千本／ｍＩｌ１の密度の回折格子となっており、発光
素子９からの光を例えば部分１０ａ及び１０ｅにスポッ
ト光として集光させるように構戊されている。それ以外
の構或は第１の実施例と同様である。In this embodiment, the spacing between the many grooves in the identification section on the card 1 side is a diffraction grating with a density of several thousand grooves/ml, and the light from the light emitting element 9 is focused as spot light on, for example, portions 10a and 10e. It is designed to emit light. The other structure is the same as the first embodiment.
第６図及び第７図は、本発明に基づく第３の実施例を示
す第２図及び第４図と同様の図である。6 and 7 are diagrams similar to FIGS. 2 and 4 showing a third embodiment based on the present invention.
本実施例では識別部２４上に想像線Ｓの方向に延在する
多数の平行なＶ字溝２６からなる第１の組２５と」二記
方向と異なる想像線Ｔの方向に延在する多数の平行なＶ
字溝２８からなる第２の組２７を合戊したものからなる
。従って、識別部２４に照射された光は受光素子１０の
各部分１０ａ〜１０ｈに第６図に示すように各溝２６、
２８の延在方向（想像線Ｓ，Ｔ）に直交する方向に延在
する一対の楕円パターンにとして受光されるので、受光
強度の高い部分（第４図の部分１０ａ、１０ｅ及び部分
１０ｂ，１０ｆ）同士の位置関係を検知することでカー
ド１が正規のカードであることを識別する。それ以外の
構成は第１の実施例と同様である。In this embodiment, a first group 25 consisting of a large number of parallel V-shaped grooves 26 extending in the direction of the imaginary line S on the identification portion 24 and a large number of parallel V-shaped grooves 26 extending in the direction of the imaginary line T different from the direction indicated in FIG. parallel V
It consists of a combination of a second set 27 of grooves 28. Therefore, the light irradiated onto the identification portion 24 is applied to each portion 10a to 10h of the light receiving element 10, as shown in FIG.
Since the light is received as a pair of elliptical patterns extending in a direction perpendicular to the extending direction (imaginary lines S, T) of 28, the parts with high received light intensity (parts 10a, 10e and parts 10b, 10f in FIG. 4) ) by detecting the positional relationship between them, it is determined that card 1 is a regular card. The rest of the configuration is the same as the first embodiment.
第８図〜第１１図は、本発明に基づく第４の実施例を示
す。本実施例によれば、受光部４０の多数の部分４１ａ
〜４１ｈからなる第１の組４１が発光素子３９を囲繞す
るように設けられ、更に、これら部分４１ａ〜４１ｈを
囲繞するように多数の部分４２ａ〜４２ｈからなる第２
の組４２が配設されている。従って、第８図及び第９図
に示すような第１の実施例及び第３の実施例と同様な識
別パターンを認識できるばかりでなく、第１０図及び第
１１図に示すように回折格子からの反射スポット光を受
光部４０の第１の組４１の部分４１ａ及び４１ｅに集光
させたり、その外側の第２の組４２の部分４２ａ及び４
２ｅに集光させる等、任意のパターンで集光させ、認識
することが可能となり、識別パターンのバリエーション
を飛躍的に増加させ、一層偽造困難性を向上することが
できるばかりでなく、例えばカード個別の情報を予めカ
ード側に記憶し、読み取ることも可能となる。8 to 11 show a fourth embodiment based on the present invention. According to this embodiment, a large number of portions 41a of the light receiving section 40
A first set 41 made up of parts 41h to 41h is provided to surround the light emitting element 39, and a second set 41 made up of a large number of parts 42a to 42h surrounds these parts 41a to 41h.
A set 42 is arranged. Therefore, not only can identification patterns similar to those of the first and third embodiments as shown in FIGS. The reflected spot light of
It is now possible to collect light in any pattern such as 2e and perform recognition, dramatically increasing the variety of identification patterns and further improving the difficulty of counterfeiting. It is also possible to store and read information on the card in advance.
それ以外の構成は第１の構成と同様である。The other configurations are the same as the first configuration.
尚、本発明は上記実施例に限定されず様々な応用が可能
なであ・ることは云うまでもなく、例えば識別部はカー
ドの裏面側に設けたり、ホログラムにより構戊しても良
い。また、互いに溝パターンの異なる識別部をカードの
表面に複数設け、一層高度な識別を行ったり、カードの
使用状態に応じて異なる識別部にて識別を行っても良い
。また、上記各実施例では発光素子から識別部に直接照
明光を照射したが、その光路中にミラー、プリズム等を
挿入し、光路を変向しても良い。また、受光素子にフォ
トダイオード以外にボジショニング・センシング・デバ
イス（Ｐ Ｓ Ｄ）等を用いても良い。更に、識別部へ
の照射光は特定な波長の光に限定されず、例えば白色光
でも良い。It goes without saying that the present invention is not limited to the above-mentioned embodiments, and can be applied in various ways. For example, the identification section may be provided on the back side of the card, or may be constituted by a hologram. Further, a plurality of identification parts having mutually different groove patterns may be provided on the surface of the card to perform more sophisticated identification, or identification may be performed using different identification parts depending on the state of use of the card. Further, in each of the above embodiments, illumination light is directly irradiated from the light emitting element to the identification section, but a mirror, a prism, etc. may be inserted into the optical path to change the direction of the optical path. Furthermore, a positioning sensing device (PSD) or the like may be used as the light receiving element in addition to the photodiode. Furthermore, the light irradiated to the identification section is not limited to light of a specific wavelength, and may be, for example, white light.
［発明の効果］
このように本発明によれば、カードの識別構造に於で、
照射光に対する反射光のパターンに特性を有する識別部
が表面に設けられたカードを読み取り／書込みするリー
ダライタにて、上記識別部に投光する投光部と、複数の
互いに区画された部分を有する受光部とを一体的に構成
し、」二記識別部からの反射パターンから正規のカード
であることを識別するようにすることで、カードリーダ
ライタが大型化、複雑化することなく偽造が困難な光学
的識別構造を容易に情報記憶カードの識別構造に用いる
ことができることから本発明の効果は大である。[Effects of the Invention] As described above, according to the present invention, in the card identification structure,
A reader/writer that reads/writes a card that has an identification part on its surface that has characteristics in the pattern of reflected light with respect to irradiated light, has a light emitting part that emits light to the identification part, and a plurality of mutually separated parts. By integrally configuring the card reader/writer with the light-receiving part and identifying the genuine card from the reflection pattern from the identification part, counterfeiting can be prevented without making the card reader/writer larger or more complex. The effects of the present invention are great because a difficult optical identification structure can be easily used for the identification structure of an information storage card.
第１図は、本発明に基づく第１の実施例を示す磁気カー
ド及びカードリーダライタの要部斜視図である。
第２図は、第１図の要部拡大平面図である。
第３図は、第２図の■−■線について見た部分断面図で
ある。
第４図は、第１図のＩＶ−ＩＶ線について見た矢視図で
ある。
第５図は、本発明に基づく第２の実施例を示す第４図と
同様の図である。
第６図及び第７図は、本発明に基づく第３の実施例を示
す第２図及び第４図と同様の図である。
第８図〜第１１図は、本発明に基づく第４の実施例を示
す第４図と同様の図である。
１・・・カード １ａ・・・主面２・・・磁気
ストライプ ３・・・磁気ヘッド４・・・識別部
６・・・Ｖ字溝９・・・発光素子 １０・・
・受光素子１０ａ〜１０ｈ・・・部分１１・・・識別回
路２０・・・受光素子 ２０ａ〜２０ｈ・・・部分
２４・・・識別部 ２５・・・第１の組２６・・
・Ｖ字溝 ２７・・・第２の組２８・・・Ｖ字溝
３９・・・発光素子４０・・・受光素子
４１・・・第１の組４１ａ〜４１ｈ・・・部分４２・・
・第２の組４２ａ〜４２ｈ・・・部分FIG. 1 is a perspective view of essential parts of a magnetic card and a card reader/writer showing a first embodiment based on the present invention. FIG. 2 is an enlarged plan view of the main part of FIG. 1. FIG. 3 is a partial sectional view taken along the line ■--■ in FIG. 2. FIG. 4 is a view taken along the line IV-IV in FIG. 1. FIG. 5 is a diagram similar to FIG. 4 showing a second embodiment based on the present invention. 6 and 7 are diagrams similar to FIGS. 2 and 4 showing a third embodiment based on the present invention. 8 to 11 are diagrams similar to FIG. 4 showing a fourth embodiment based on the present invention. 1...Card 1a...Main surface 2...Magnetic stripe 3...Magnetic head 4...Identification section
6...V-shaped groove 9...Light emitting element 10...
- Light receiving elements 10a to 10h...part 11...identification circuit 20...light receiving element 20a to 20h...part 24...identification section 25...first group 26...
・V-shaped groove 27... Second set 28... V-shaped groove 39... Light emitting element 40... Light receiving element
41...First group 41a to 41h...Part 42...
・Second group 42a to 42h...part
Claims (3)
ドの表面に設けられた光学的識別部と、前記識別部をも
って前記カードが正規のカードであるか否かを識別する
べく前記リーダライタ側に設けられると共に前記識別部
に向けて投光する投光部と、前記識別部からの反射光を
受光する受光部とを有する情報記憶カードの識別構造で
あって、前記受光部が、前記投光部と一体的に設けられ
ると共に各々別途に受光可能な互いに区画された複数の
部分を有することを特徴とする情報記憶カードの識別構
造。(1) An optical identification section provided on the surface of the information storage card that exchanges information with the reader/writer, and the reader/writer side for identifying whether or not the card is a regular card using the identification section. An identification structure for an information storage card, the information storage card having a light projecting part that is provided in the identification part and emits light toward the identification part, and a light receiving part that receives reflected light from the identification part, the light receiving part being provided in the light projecting part. An identification structure for an information storage card, characterized by having a plurality of mutually partitioned parts that are provided integrally with a light section and can each separately receive light.
配設されたことを特徴とする請求項１に記載の情報記憶
カードの識別構造。(2) The identification structure for an information storage card according to claim 1, wherein the plurality of parts are arranged so as to surround the light projecting part.
部分からなる第１の組と、前記第１の組を囲繞する複数
の部分からなる第２の組とを有することを特徴とする請
求項２に記載の情報記憶カードの識別構造。(3) The plurality of parts include a first set made up of a plurality of parts surrounding the light projecting section, and a second set made up of a plurality of parts surrounding the first set. The identification structure of an information storage card according to claim 2.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1311422A JPH07120382B2 (en) | 1989-11-30 | 1989-11-30 | Identification structure of information storage card |
| EP19900113539 EP0412316B1 (en) | 1989-08-11 | 1990-07-14 | Authenticity identifying system for information storage cards |
| DE1990627071 DE69027071T2 (en) | 1989-08-11 | 1990-07-14 | Authenticity detection device for information memory cards |
| US07/782,976 US5200794A (en) | 1989-08-11 | 1991-10-24 | Optical head for an optical authenticity identifing system |
| US07/788,569 US5291006A (en) | 1989-08-11 | 1991-11-06 | Authenticity identifying system for information storage cards |
| US08/036,016 US5442433A (en) | 1989-08-11 | 1993-03-23 | Identification system for an article having individually attached patches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1311422A JPH07120382B2 (en) | 1989-11-30 | 1989-11-30 | Identification structure of information storage card |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03169695A true JPH03169695A (en) | 1991-07-23 |
| JPH07120382B2 JPH07120382B2 (en) | 1995-12-20 |
Family
ID=18017011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1311422A Expired - Lifetime JPH07120382B2 (en) | 1989-08-11 | 1989-11-30 | Identification structure of information storage card |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07120382B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0573738A (en) * | 1991-04-16 | 1993-03-26 | Nhk Spring Co Ltd | Object discriminating structure |
| JP2004191442A (en) * | 2002-12-09 | 2004-07-08 | Dainippon Printing Co Ltd | Authentication decision body |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS531131A (en) * | 1976-06-25 | 1978-01-07 | Hitachi Ltd | Mold for continuous casting |
| JPS5313837A (en) * | 1976-07-23 | 1978-02-07 | Yamatake Honeywell Co Ltd | System for reading code |
| JPS551637A (en) * | 1978-06-20 | 1980-01-08 | Hitachi Maxell Ltd | Magnetic recording medium |
| JPS5577776A (en) * | 1978-12-07 | 1980-06-11 | Sanyo Electric Co Ltd | Recording-reproducing system of hologram signal |
| JPS5877359U (en) * | 1981-11-17 | 1983-05-25 | 三洋電機株式会社 | information record body |
-
1989
- 1989-11-30 JP JP1311422A patent/JPH07120382B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS531131A (en) * | 1976-06-25 | 1978-01-07 | Hitachi Ltd | Mold for continuous casting |
| JPS5313837A (en) * | 1976-07-23 | 1978-02-07 | Yamatake Honeywell Co Ltd | System for reading code |
| JPS551637A (en) * | 1978-06-20 | 1980-01-08 | Hitachi Maxell Ltd | Magnetic recording medium |
| JPS5577776A (en) * | 1978-12-07 | 1980-06-11 | Sanyo Electric Co Ltd | Recording-reproducing system of hologram signal |
| JPS5877359U (en) * | 1981-11-17 | 1983-05-25 | 三洋電機株式会社 | information record body |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0573738A (en) * | 1991-04-16 | 1993-03-26 | Nhk Spring Co Ltd | Object discriminating structure |
| JP2004191442A (en) * | 2002-12-09 | 2004-07-08 | Dainippon Printing Co Ltd | Authentication decision body |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07120382B2 (en) | 1995-12-20 |
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