JPH02240792A - Terminal equipment for ic card - Google Patents

Terminal equipment for ic card

Info

Publication number
JPH02240792A
JPH02240792A JP1062485A JP6248589A JPH02240792A JP H02240792 A JPH02240792 A JP H02240792A JP 1062485 A JP1062485 A JP 1062485A JP 6248589 A JP6248589 A JP 6248589A JP H02240792 A JPH02240792 A JP H02240792A
Authority
JP
Japan
Prior art keywords
card
terminal
terminal equipment
use terminal
access
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.)
Pending
Application number
JP1062485A
Other languages
Japanese (ja)
Inventor
Toshiya Otani
俊哉 大谷
Kazuhiko Sueoka
一彦 末岡
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1062485A priority Critical patent/JPH02240792A/en
Publication of JPH02240792A publication Critical patent/JPH02240792A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent a malfunction of an IC card use terminal equipment caused by a potential rise at the time of absorbing transition of electrostatic discharge by absorbing the electrostatic discharge from an electrified IC card by a surge absorber element, and detaching an IC card use access terminal of the IC card use terminal equipment and an internal circuit by a switch. CONSTITUTION:In the case when an IC card 6 is inserted into an IC card use terminal equipment 7, an IC card contact terminal 5 and an IC card access use terminal 10 of the IC card use terminal equipment 7 come into contact with each other. As a result, static electricity is discharged and absorbed through a varistor 3 to a ground of the IC card use terminal equipment 7 through the IC card access use terminal 10 of the IC card use terminal equipment 7 from a power source terminal 5a of the IC card 6 and other signal 5c of the IC card 6. In this case, a relay switch 4 is set to a non-conducting state by a relay switch control signal 2b from an internal circuit 2 of the IC card use terminal equipment 7, and each IC card access use terminal 10 of the IC card use terminal equipment 7 and an internal circuit 2 are detached. In such a way, a malfunction is prevented.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、ICカード内の情報を読み出しするICカー
ド用端末装置に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an IC card terminal device that reads information in an IC card.

従来の技術 10カードをICカード用端末装置に挿入するタイプの
従来例を第2図に示す。第2図で、5はICカードeの
接点端子、7はICカード用端末装置、8はオープナ−
19はカードホルダー10はICカード用端末装置7の
内部に設けられたICカードアクセス用端子である。手
順としては、オープナ−8によりカードホルダー9を開
ける。次にICカード6を矢印方向に挿入し、カードホ
ルダー9を閉める。これにより接点端子6とICカード
用端末装置7の内部に設けられたICガードアクセス用
端子10とが接触し、ICカード6とICカード用端末
装装置との間でデータの送受が可能となる。その際の従
来のICカード用端末装置7のICカードインターフェ
ース部分の回路を第3図に示す。第3図で、1oはIC
カードアクセス用端子で、1o&はICカードアクセス
用電源端子、1obはI(jカードアクセス用グランド
端子、100はICカードアクセス用その他の信号端子
、2はICカード用端末装置7の内部回路、2aはIC
カードアクセス用信号、6はICカード接点端子で、6
aはICカードの電源端子、6bはICカード6のグラ
ンド端子、6cはICカード6のその他の信号端子であ
る。ICカード用端末装置7の内部回路2からのICカ
ードアクセス用の信号21Lは各Icカードアクセス用
端子10に各々接続されている。
Prior Art 10 A conventional example of a type in which a card is inserted into an IC card terminal device is shown in FIG. In Fig. 2, 5 is the contact terminal of the IC card e, 7 is the IC card terminal device, and 8 is the opener.
Reference numeral 19 denotes a card holder 10, which is an IC card access terminal provided inside the IC card terminal device 7. The procedure is to open the card holder 9 using the opener 8. Next, insert the IC card 6 in the direction of the arrow and close the card holder 9. This brings the contact terminal 6 into contact with the IC guard access terminal 10 provided inside the IC card terminal device 7, making it possible to send and receive data between the IC card 6 and the IC card terminal device. . The circuit of the IC card interface portion of the conventional IC card terminal device 7 in this case is shown in FIG. In Figure 3, 1o is an IC
Terminals for card access, 1o & are power supply terminals for IC card access, 1ob is ground terminal for I(j card access, 100 is other signal terminal for IC card access, 2 is internal circuit of IC card terminal device 7, 2a is IC
Card access signal, 6 is IC card contact terminal, 6
6b is a ground terminal of the IC card 6, and 6c is another signal terminal of the IC card 6. The IC card access signal 21L from the internal circuit 2 of the IC card terminal device 7 is connected to each IC card access terminal 10, respectively.

以上のように構成されたICカード用端末装置アのIC
カードインターフェース部分の回路について、以下その
動作について説明する。
IC of IC card terminal device A configured as above
The operation of the card interface circuit will be explained below.

まず、前記の手順により、ICカード6をICカード用
端末装置7に挿入するとICカード用端末装置7のIC
カードアクセス用端子10とICカード6の接点端子6
が接触する。ICカード挿入後、ICカード6とICカ
ード用端末装置7の内部回路2との間でデータ送受を行
う場合、ICカード用端末装置7の内部回路2によりI
Cカード用端末装置7の電源端子11からICカード6
の電源端子6&を介してICカード6に電源を供給し、
その後ICカード用端末装置了のその他の信号端子1G
とICカード6のその他の信号端子6Cとの間で、デー
タの送受が行われる。
First, according to the above procedure, when the IC card 6 is inserted into the IC card terminal device 7, the IC card of the IC card terminal device 7 is inserted.
Card access terminal 10 and IC card 6 contact terminal 6
comes into contact. After inserting the IC card, when transmitting and receiving data between the IC card 6 and the internal circuit 2 of the IC card terminal 7, the internal circuit 2 of the IC card terminal 7
From the power terminal 11 of the C card terminal device 7 to the IC card 6
Supplies power to the IC card 6 via the power terminal 6 & of the
After that, other signal terminal 1G of the terminal device for IC card
Data is transmitted and received between the IC card 6 and the other signal terminal 6C of the IC card 6.

発明が解決しようとする課題 しかし従来の方法では、ICカード6の挿入時に、IC
カード6の各端子に静電気が蓄積されていた場合Icカ
ード6の接点端子6とICカード用端末装置7のICカ
ードアクセス用端子1oの接触により、静電気が放電さ
れICカード用端末装置7Nが誤動作するという課題が
あった。
Problems to be Solved by the Invention However, in the conventional method, when the IC card 6 is inserted,
If static electricity is accumulated in each terminal of the card 6, the contact terminal 6 of the IC card 6 and the IC card access terminal 1o of the IC card terminal device 7 come into contact, and the static electricity is discharged, causing the IC card terminal device 7N to malfunction. There was an issue to do.

そこで本発明はこの誤動作を防止することを目的とする
ものである。
Therefore, the present invention aims to prevent this malfunction.

課題を解決するための手段 そしてこの目的を達成するために本発明は。Means to solve problems The present invention achieves this objective.

ICカード用端末装置に複数設けられたICカードアク
セス用端子のうち、グランド端子と電源端子及びこのグ
ランド端子とその他の信号端子との間にサージアブソー
バ素子を接続し、前記各サージアブソーバ素子の後にス
イッチを介して内部回路を接続し、前記スイッチはIC
カードの接点端子と前記ICカードアクセス用端子が接
触する時に非導通状態とし、その後データ送受時には導
通状態にして前記ICカードアクセス用端子と内部回路
を接続する構成としたものである。
A surge absorber element is connected between the ground terminal and the power supply terminal and between this ground terminal and other signal terminals among the plurality of IC card access terminals provided in the IC card terminal device, and after each of the surge absorber elements. The internal circuit is connected through a switch, and the switch is an IC.
When the contact terminal of the card and the IC card access terminal are in contact with each other, the IC card access terminal is in a non-conductive state, and then during data transmission/reception, the IC card access terminal is brought into a conductive state to connect the IC card access terminal and the internal circuit.

作用 本発明は、前記した構成により、帯電したICカードか
らの静電気放電をサージアブソーバ素子により吸収し、
この時スイッチによりICカード用端末装置のICカー
ド用アクセス端子と内部回路を切離すことにより、サー
ジアブソーバ素子での静電気放電の吸収過渡時の電位上
昇による1カード用端末装置の誤動作を無くすことがで
きるものである。
Effect of the present invention With the above-described configuration, electrostatic discharge from a charged IC card is absorbed by a surge absorber element,
At this time, by disconnecting the IC card access terminal of the IC card terminal device from the internal circuit using a switch, it is possible to eliminate malfunctions of the card terminal device due to potential increases during transient absorption of electrostatic discharge in the surge absorber element. It is possible.

実施例 第1図に本発明のICカード用端末装置のICカードイ
ンターフェース部分の回路の一実施例を示す。なお第2
図、第3図と同一部分には同一番号を付している。第1
図で2bはスイッチ制御信号、3はサージアブソーバ素
子(例えば松下電器産業株式会社製ZNRバリスタ:以
後はバリスタと紀する)、4はスイッチ(例えばリレー
スイッチ:以後はリレースイッチと記する)であり、他
は従来例と同じである。ICカード用端末装置7の内部
回路2からのICカードアクセス用信号2aはリレース
イッチ4を介してICカードアクセス用端子10に接続
されており、ICカードアクセス用電源端子10&及び
ICカードアクセス用その他の信号端子10CとXaカ
ード用端末装置7のグランド端子10bとの間には、バ
リスタ3が設けられている。
Embodiment FIG. 1 shows an embodiment of the circuit of the IC card interface portion of the IC card terminal device of the present invention. Furthermore, the second
The same parts as in FIG. 3 are given the same numbers. 1st
In the figure, 2b is a switch control signal, 3 is a surge absorber element (for example, ZNR varistor manufactured by Matsushita Electric Industrial Co., Ltd., hereinafter referred to as varistor), and 4 is a switch (for example, a relay switch: hereinafter referred to as relay switch). , the others are the same as the conventional example. The IC card access signal 2a from the internal circuit 2 of the IC card terminal device 7 is connected to the IC card access terminal 10 via the relay switch 4, and is connected to the IC card access power terminal 10& and other IC card access terminals. A varistor 3 is provided between the signal terminal 10C and the ground terminal 10b of the Xa card terminal device 7.

以上のように構成されたICカード用端末装置7のxG
カードインターフェース部分の回路動作について以下に
説明する。
xG of the IC card terminal device 7 configured as above
The circuit operation of the card interface section will be explained below.

ICカード6の電源端子6&及びICカード6のその他
の信号6CとICカード6のグランド端子6bとの間に
静電気が蓄積されているICカード6を前記手順によっ
てICカード用端末装置7に挿入した場合、ICカード
接点端子6とICカード用端末装置7のICカードアク
セス用端子1oとが接触する。すると静電気はICカー
ド6の電源端子6&及びICカード6のその他の信号6
CからICカード用端末装置7のICカードアクセス用
端子10を介し、ICカード用端末装置7のグランドに
バリスタ3を通して放電され、吸収される。この際IC
カード用端末装置7の内部回路2からのリレースイッチ
制御信号2bでリレースイッチ4を非導通状態にし、1
カード用端末装置7の各ICカードアクセス用端子1o
と内部回路2を切離しておく。このことにより静電気が
放電吸収されるときのICカード用端末装置7の各IC
カードアクセス用端子10の電位上昇によるICカード
端末装置7の内部回路2への影響がなくなる。ICカー
ド6の挿入後は、リレースイッチ制御信号2bによりリ
レースイッチ4を導通状態にし、内部回路2とICカー
ドアクセス用端子1を接続することによりICカードe
とICカード用端末装置7との間でデータの送受を行う
ことができる。
The IC card 6 with static electricity accumulated between the power terminal 6 & of the IC card 6 and the other signal 6C of the IC card 6 and the ground terminal 6b of the IC card 6 was inserted into the IC card terminal device 7 according to the above procedure. In this case, the IC card contact terminal 6 and the IC card access terminal 1o of the IC card terminal device 7 come into contact. Then, static electricity will be applied to the power terminal 6 & of the IC card 6 and other signals 6 of the IC card 6.
The electric current is discharged from C through the IC card access terminal 10 of the IC card terminal device 7 to the ground of the IC card terminal device 7 through the varistor 3, and is absorbed. At this time, IC
The relay switch 4 is made non-conductive by the relay switch control signal 2b from the internal circuit 2 of the card terminal device 7, and the 1
Each IC card access terminal 1o of the card terminal device 7
and internal circuit 2 are separated. As a result, each IC of the IC card terminal device 7 when static electricity is discharged and absorbed.
The influence on the internal circuit 2 of the IC card terminal device 7 due to the potential rise of the card access terminal 10 is eliminated. After inserting the IC card 6, the relay switch 4 is made conductive by the relay switch control signal 2b, and the IC card e is connected by connecting the internal circuit 2 and the IC card access terminal 1.
Data can be sent and received between the IC card terminal device 7 and the IC card terminal device 7.

発明の効果 以上本発明によれば、静電気が蓄積されたICカードを
ICカード用端末装置に挿入した際、静電気放電によっ
てICカード用端末装置が誤動作を起こす可能性が無く
なる。
Effects of the Invention According to the present invention, when an IC card with accumulated static electricity is inserted into an IC card terminal device, there is no possibility that the IC card terminal device will malfunction due to static electricity discharge.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例にかかるICカードとICカ
ード用端末装置のICカードインターフェース回路部分
の一実施例を示す回路図、第2図は従来のICカードと
ICカード用端末装置の斜視図、第3図は従来のICカ
ードとICカード用端末装置のインターフェースの回路
図である。 2・・・・・・ICカード用端末装置の内部回路、2&
・・・・・・ICカードアクセス用信号、2b・・・・
・・リレースイッチ制御信号、3・−・・・・バリスタ
、4・・・・・・リレースイッチ、6・・・・・・IC
カード接点端子、5&°−・・・ICカード電源端子、
6b・・・・・・ICカードグランド端子、50・・・
・・・ICカードその他信号端子。 6・・・・・・ICカード、7・・・・・・ICカード
用端末装置。 8・・・・・・オープナ−19・・・・・・カードホル
ダー、1゜・・・・・・ICカード用端末装置のICカ
ードアクセス用端子、101L・・・・・・ICカード
アクセス用電源端子、10b・・・・・・ICカードア
クセス用グランド端子、10C・・・・・・ICカード
アクセス用その他の信号端子。 第 図 第 図
FIG. 1 is a circuit diagram showing an embodiment of the IC card interface circuit portion of an IC card and an IC card terminal device according to an embodiment of the present invention, and FIG. The perspective view and FIG. 3 are circuit diagrams of an interface between a conventional IC card and an IC card terminal device. 2...Internal circuit of IC card terminal device, 2&
...IC card access signal, 2b...
...Relay switch control signal, 3...Varistor, 4...Relay switch, 6...IC
Card contact terminal, 5&°-...IC card power terminal,
6b...IC card ground terminal, 50...
...IC card and other signal terminals. 6...IC card, 7...Terminal device for IC card. 8...Opener-19...Card holder, 1゜...Terminal for IC card access of IC card terminal device, 101L...For IC card access Power supply terminal, 10b...ground terminal for IC card access, 10C...other signal terminal for IC card access. Figure Figure

Claims (1)

【特許請求の範囲】[Claims]  複数設けられたICカードアクセス用端子のうち、グ
ランド端子と電源端子及びこのグランド端子とその他の
信号端子との間にサージアブソーバ素子を接続し、前記
各サージアブソーバ素子の後にスイッチを介して内部凹
路を接続し,前記スイッチは、ICカードの接点端子と
前記ICカードアクセス用端子が接触する時に非導通状
態とし、その後のデータ送受時には導通状態にして前記
ICカードアクセス用端子と内部回路を接続する構成と
したICカード用端末装置。
Among the plurality of IC card access terminals, a surge absorber element is connected between a ground terminal and a power supply terminal, and between this ground terminal and other signal terminals, and a surge absorber element is connected to an internal recess through a switch after each surge absorber element. The switch is in a non-conductive state when the contact terminal of the IC card and the IC card access terminal are in contact with each other, and is in a conductive state during subsequent data transmission/reception to connect the IC card access terminal and the internal circuit. An IC card terminal device configured to.
JP1062485A 1989-03-15 1989-03-15 Terminal equipment for ic card Pending JPH02240792A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1062485A JPH02240792A (en) 1989-03-15 1989-03-15 Terminal equipment for ic card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1062485A JPH02240792A (en) 1989-03-15 1989-03-15 Terminal equipment for ic card

Publications (1)

Publication Number Publication Date
JPH02240792A true JPH02240792A (en) 1990-09-25

Family

ID=13201530

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1062485A Pending JPH02240792A (en) 1989-03-15 1989-03-15 Terminal equipment for ic card

Country Status (1)

Country Link
JP (1) JPH02240792A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6431456B2 (en) * 1999-12-03 2002-08-13 Hitachi, Ltd. IC card

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6431456B2 (en) * 1999-12-03 2002-08-13 Hitachi, Ltd. IC card
US7224052B2 (en) 1999-12-03 2007-05-29 Renesas Technology Corp. IC card with controller and memory chips
US7538418B2 (en) 1999-12-03 2009-05-26 Renesas Technology Corp. IC card
US7547961B2 (en) 1999-12-03 2009-06-16 Renesas Technology Corp. IC card with bonding wire connections of different lengths
US7768110B2 (en) 1999-12-03 2010-08-03 Renesas Technology Corp. Nonvolatile memory apparatus
US8018038B2 (en) 1999-12-03 2011-09-13 Renesas Electronics Corporation IC card with terminals for direct access to internal components

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