JPH1091736A - Ic card - Google Patents

Ic card

Info

Publication number
JPH1091736A
JPH1091736A JP8242928A JP24292896A JPH1091736A JP H1091736 A JPH1091736 A JP H1091736A JP 8242928 A JP8242928 A JP 8242928A JP 24292896 A JP24292896 A JP 24292896A JP H1091736 A JPH1091736 A JP H1091736A
Authority
JP
Japan
Prior art keywords
power
coil
contact
card
transmission
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
JP8242928A
Other languages
Japanese (ja)
Inventor
Masaaki Ando
公明 安藤
Takehiro Okawa
武宏 大川
Yousuke Chiyoujiyamori
洋助 長者森
Nobuyuki Arasawa
伸幸 荒澤
Kenta Morishima
憲太 森島
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8242928A priority Critical patent/JPH1091736A/en
Publication of JPH1091736A publication Critical patent/JPH1091736A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06KGRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/067Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
    • G06K19/07Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
    • G06K19/077Constructional details, e.g. mounting of circuits in the carrier
    • G06K19/07749Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
    • G06K19/07766Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement
    • G06K19/07769Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card comprising at least a second communication arrangement in addition to a first non-contact communication arrangement the further communication means being a galvanic interface, e.g. hybrid or mixed smart cards having a contact and a non-contact interface

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)

Abstract

PROBLEM TO BE SOLVED: To reduce the power consumption of a portable terminal by securing connection among a power coil, the DC voltage generated by a DC power circuit connected to the power coil and the DC voltage supplied from a contact via a diode and then supplying the electric power to a load from the coil or the contact. SOLUTION: A power transmission circuit 115 drives a power transmission coil 111 and sends the power to a power reception coil 121 connected to a card via transformer. Thus, a power circuit 124 generates the DC voltage. The data are transferred in both directions as the noncontact serial data among a read/write control circuit 116, a reader data transmission/reception coil 112, a card transmission/reception coil 122 and a transmission/reception control circuit 125. Then a contact type power supply terminal 123 is connected to a card internal circuit (load) via a diode 128 to supply the power to a card contact terminal 123 from a battery 114 contained in a read/write device via contact terminal 113 of the read/write device.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、電力の供給および
双方向の情報伝達を非接触または接触接点を介して行な
うICカ−ド分野に関し、特に、形態用として使用する
ICカ−ドおよびそのリ−ドライト装置に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of IC cards for supplying power and bidirectional information transmission through non-contact or contact contacts, and more particularly, to an IC card used for a form and its IC card. The present invention relates to a read light device.

【0002】[0002]

【従来の技術】ICカ−ドに関しては、電力および情報
の伝達の双方を複数の接点を用いて接触式で行なう方式
は公知であり、クレジットカ−ドなどに使用されてい
る。さらに、電力および情報の伝達の双方を非接触で行
なうものとして、特開平1−81086などがある。ま
た、接触式、非接触式とを切替えて使用するものとし
て、特開平3−209592がある。
2. Description of the Related Art As for an IC card, a method in which both power and information are transmitted by a contact method using a plurality of contacts is well known, and is used for credit cards and the like. Japanese Patent Application Laid-Open No. 1-81086 discloses a technique for transmitting both power and information in a non-contact manner. Japanese Patent Application Laid-Open No. HEI 3-209592 discloses an apparatus which is used by switching between a contact type and a non-contact type.

【0003】図6に従来技術のICカ−ドの構成を示
す。従来のICカ−ドは、図6(a)に示すように、接
点501によって電力およびデ−タの転送を行なう、接
触式のICカ−ドや、図6(b)のように、電力とデ−
タを別々のコイルを用いて交信するタイプや、図6
(c)のように、1コイルで電力とデ−タの送受信を行
なうタイプの非接触方式ICカ−ドがある。
FIG. 6 shows the structure of a conventional IC card. As shown in FIG. 6A, a conventional IC card uses a contact type IC card in which electric power and data are transferred through a contact 501, and a power supply as shown in FIG. 6B. And date
Type using different coils for communication,
As shown in (c), there is a non-contact type IC card which transmits and receives power and data with one coil.

【0004】[0004]

【発明が解決しようとする課題】上記従来技術におい
て、接触式のICカ−ドについては、電源、グランド端
子の他にクロック信号やリセット信号、デ−タ入出力信
号およびプログラム信号など多くの接点を必要とするた
め、接触不良などの問題があった。
In the above prior art, the contact type IC card has many contacts such as a clock signal, a reset signal, a data input / output signal and a program signal in addition to a power supply and a ground terminal. Therefore, there are problems such as poor contact.

【0005】一方、非接触式については、接点を必要と
しないため接触不良などの問題はないが、送受信コイル
を介して電力を供給するため伝達ロスが大きく、所望の
電力を供給するために、リ−ドライト装置の消費電力が
非常に大きくなるという問題があった。例えば、マイク
ロプロセッサ内臓のICカ−ドなどにおける電源容量
は、3.3V/5mA〜10mA程度である。この電力
をコイルを用いて非接触で供給しようとすると、リ−ド
ライト装置側のコイル駆動電力として、最悪値で20V
/100mA程度が必要となる。
On the other hand, in the non-contact type, there is no problem such as poor contact because no contact is required. However, since power is supplied through the transmitting and receiving coil, transmission loss is large, and in order to supply desired power, There is a problem that the power consumption of the read write device becomes very large. For example, the power supply capacity of an IC card or the like with a built-in microprocessor is about 3.3 V / 5 mA to 10 mA. If this power is to be supplied in a non-contact manner using a coil, the worst value is 20 V as the coil drive power on the read / write device side.
/ 100 mA is required.

【0006】以上のように、リ−ドライト装置の消費電
力が大きいということは、電池駆動が必要な形態型の端
末に、ICカ−ドとそのリ−ドライト装置を組み込む場
合に大きな問題となる。
As described above, the large power consumption of the read / write device poses a serious problem when the IC card and the read / write device are incorporated in a portable terminal which needs to be driven by a battery. .

【0007】[0007]

【課題を解決するための手段】外部装置(リ−ドライト
装置)との間で、電力と情報を二つのコイルを用いて、
別々に伝送する方法とし、さらに、電力を受電するため
のコイルのほかに、電力を受電するための接点を設け、
電力用コイルとそれに接続された直流電源回路によって
得られた直流電圧と、接点からの直流電圧とを、それぞ
れダイオ−ド介して接続し、コイルまたは接点の両方か
ら負荷に電力を供給する構成とする。
Means for Solving the Problems Power and information are exchanged with an external device (read light device) by using two coils.
It is a method of transmitting separately, and in addition to a coil for receiving power, a contact for receiving power is provided,
A structure in which a DC voltage obtained by a power coil and a DC power supply circuit connected thereto and a DC voltage from a contact are connected via a diode, respectively, and power is supplied to a load from both the coil and the contact. I do.

【0008】このように構成することによって、電池駆
動を行なわない、すなわち、低消費電力化を考慮しなく
てもよい非接触型の装置では、電力の供給をコイルによ
って行ない、電池を使用した携帯型端末などにおいて
は、接触式の接点によって電力を供給する方法とするこ
とによって、携帯型端末の低消費電力化を実現する。
With such a configuration, in a non-contact type device which does not need to be driven by a battery, that is, does not need to consider low power consumption, power is supplied by a coil and a portable device using a battery is used. In a portable terminal or the like, low power consumption of the portable terminal is realized by a method of supplying power through a contact-type contact.

【0009】[0009]

【発明の実施の形態】以下、本発明の実施の形態を図を
用いて詳細に説明する。
Embodiments of the present invention will be described below in detail with reference to the drawings.

【0010】図1は、本発明の実施の形態の一例を示す
図である。ICカ−ド2は、リ−ドライト装置1との間
で電力の授受とデ−タの送受信を行なう。電力について
は、電力送信回路115によって電力送信用コイル11
1が駆動され、トランス結合されたカ−ド側の電力受信
コイル121に伝送され電源回路124によって直流電
圧を得る。コイルによって非接触で得られた電力は、ダ
イオ−ド129を通して、カ−ド内部の送受信制御回路
125、マイクロプロセッサ126、メモリ127など
の回路に供給される。一方、デ−タは、リ−ドライト制
御回路116、リ−ダ側デ−タ送受信コイル112、カ
−ド側デ−タ送受信コイル122、および送受信制御回
路125との間で非接触のシリアルデ−タとして双方向
で転送される。デ−タ用コイルを介して送受信されたデ
−タは、マイクロプロセッサ126を介して不揮発性メ
モリなどのメモリ127にライトあるいはリ−ドされ
る。また、電源供給用として、上記非接触方式の他に、
接触式の電源供給端子123を設けダイオ−ド128を
通してカ−ド内部回路(負荷)に接続している。接触方
式の電力は、リ−ドライト装置内部の電池114からリ
−ドライト装置側の接触端子113を介して、カ−ド側
の接触端子123に供給される。
FIG. 1 is a diagram showing an example of an embodiment of the present invention. The IC card 2 exchanges power with the read / write device 1 and transmits and receives data. As for the power, the power transmission coil 115
1 is driven and transmitted to the transformer-coupled power receiving coil 121 on the card side, and a DC voltage is obtained by the power supply circuit 124. The electric power obtained by the coil in a non-contact manner is supplied to circuits such as a transmission / reception control circuit 125, a microprocessor 126, and a memory 127 inside the card through a diode 129. On the other hand, data is transmitted to the read / write control circuit 116, the reader / writer data transmission / reception coil 112, the card / data transmission / reception coil 122, and the transmission / reception control circuit 125 in a non-contact manner. Data in both directions. Data transmitted and received via the data coil is written or read to a memory 127 such as a nonvolatile memory via the microprocessor 126. For power supply, in addition to the non-contact method,
A contact type power supply terminal 123 is provided and connected to a card internal circuit (load) through a diode 128. The power of the contact type is supplied from the battery 114 inside the read light device to the contact terminal 123 on the card side via the contact terminal 113 on the read light device side.

【0011】本発明の方法は、非接触のICカ−ドを基
本とし、電力の供給方法のみを接触式、非接触式のどち
らでも可能なようにしたものである。
The method of the present invention is based on a non-contact IC card, and enables only a power supply method of either a contact type or a non-contact type.

【0012】例えば、マイクロプロセッサ内臓のICカ
−ドなどの電源容量は、DC3.3V/5mA程度であ
る。この電力を非接触で供給しようとすると電力送信回
路では、最悪の場合(コイルの伝達特性によって異な
る)±AC20V/100mA程度の電力で送信コイル
を駆動する必要がある。
For example, the power supply capacity of an IC card or the like built in a microprocessor is about DC 3.3 V / 5 mA. If the power is to be supplied in a non-contact manner, the power transmission circuit needs to drive the transmission coil with power of about ± 20 V AC / 100 mA in the worst case (depending on the transfer characteristics of the coil).

【0013】図2は、クレジットの精算などを行なう携
帯型端末にICカ−ドを使用した一例を示す図である。
携帯型ICカ−ド端末200は、LCD(液晶表示器)
204や操作用のキ−スイッチ203などがある。IC
カ−ド2は、携帯型端末200に挿入され、残高照会や
暗証番号の照合などを行ない、クレジットなどの精算に
使用される。
FIG. 2 is a diagram showing an example in which an IC card is used in a portable terminal that performs credit settlement and the like.
The portable IC card terminal 200 is an LCD (liquid crystal display).
204 and a key switch 203 for operation. IC
The card 2 is inserted into the portable terminal 200, and performs balance inquiry, collation of a password, and the like, and is used for settlement of credits and the like.

【0014】図3は、端末およびカ−ドの詳細構成を示
す図である。携帯型端末200は、電池201によって
駆動されている。また、本端末は、携帯型端末制御回路
202を介して、キ−スイッチ203および液晶ディス
プレイ204などを有している。一方、ICカ−ド2と
のデ−タ交信については、携帯型端末側は、カ−ド用リ
−ドライト制御回路205と送信受信コイル112を用
い、カ−ド側は、送信受信コイル122と送信受信制御
回路210によって行なう。電力の供給については、電
池201に接続された携帯型端末側端子113とICカ
−ド側端子123との間で接触式で行なう。
FIG. 3 is a diagram showing a detailed configuration of a terminal and a card. The portable terminal 200 is driven by a battery 201. This terminal has a key switch 203 and a liquid crystal display 204 via a portable terminal control circuit 202. On the other hand, for data communication with the IC card 2, the portable terminal uses the card read / write control circuit 205 and the transmission / reception coil 112, and the card side uses the transmission / reception coil 122. Is performed by the transmission / reception control circuit 210. Power is supplied in a contact manner between the portable terminal terminal 113 connected to the battery 201 and the IC card terminal 123.

【0015】非接触で電力を供給しようとすれば電磁結
合などの損失などで実際にカ−ドで必要な電力の10倍
から30倍の電力を供給する必要がある。電磁結合の損
失の要因としては、コイルで消費される電力や送信コイ
ルと受信コイルの結合係数がある。一般に、非接触IC
カ−ドにおける電磁結合の結合係数は、電磁場が開放に
なっているため、0.1〜0.05である。また、コイ
ルで消費される電力は、コイルインピ−ダンスとカ−ド
内部に流す電流で決まるものであるが、特に、周波数が
高いほどインピ−ダンスが高くなり、コイルで消費され
る電力は増大する。これらの電力損失を合計すると前述
したように効率は1/10から1/30程度となる。I
Cカ−ドに必要な電力は、おおよそ数10mW程度であ
るが、非接触式の場合には、電力供給回路として数10
0mWから数Wの電力が必要となる。 本発明のごとく
接触式で電流を供給する方法によれば、電池での余分な
電力消費を避けることができる。また、接触不良による
トラブルを回避するためには、接点の数を増加すること
で解決できる。
If power is to be supplied in a non-contact manner, it is necessary to supply power 10 to 30 times the power actually required by the card due to losses such as electromagnetic coupling. Factors of the loss of the electromagnetic coupling include the power consumed by the coil and the coupling coefficient between the transmitting coil and the receiving coil. Generally, non-contact IC
The coupling coefficient of the electromagnetic coupling in the card is 0.1 to 0.05 because the electromagnetic field is open. The power consumed by the coil is determined by the coil impedance and the current flowing inside the card. In particular, the higher the frequency is, the higher the impedance is, and the more power is consumed by the coil. . When these power losses are summed up, the efficiency becomes about 1/10 to 1/30 as described above. I
The power required for the C card is about several tens of mW, but in the case of the non-contact type,
Power of 0 mW to several W is required. According to the method of supplying current in a contact manner as in the present invention, unnecessary power consumption in the battery can be avoided. In addition, in order to avoid troubles due to poor contact, the problem can be solved by increasing the number of contacts.

【0016】図4および図5は、本発明のもう一つの実
施の形態を表す図である。図4は、本発明のICカ−ド
を用いて、接触式で電力供給を行なった例である。携帯
型端末200は、電池201から接触式接点113によ
ってカ−ド2の接点123を介して電力を供給する。供
給された電力は、ダイオ−ド128を通して、負荷であ
る送信受信制御回路125、CPU126およびメモリ
127に電力を供給する。一方、送受信信号は、リ−ド
/ライト制御回路205によって送受信コイル112を
ドライブし、カ−ド側コイル122との間でデ−タの交
信を行なう。カ−ド側コイルで送受信された信号は、送
信受信制御回路125を介して、CPU126およびメ
モリ127との間で、デ−タのリ−ド/ライトを行な
う。
FIG. 4 and FIG. 5 are diagrams showing another embodiment of the present invention. FIG. 4 shows an example in which power is supplied in a contact manner using the IC card of the present invention. The portable terminal 200 supplies power from the battery 201 through the contact 123 of the card 2 by the contact type contact 113. The supplied power supplies power to a transmission / reception control circuit 125, a CPU 126, and a memory 127, which are loads, through a diode 128. On the other hand, the transmission / reception signal drives the transmission / reception coil 112 by the read / write control circuit 205 to exchange data with the card side coil 122. The signal transmitted / received by the card side coil is read / written between the CPU 126 and the memory 127 via the transmission / reception control circuit 125.

【0017】また、図5は非接触によって電力供給を行
なう場合の例である。リ−ドライト制御回路1は、電力
送信回路115で電力送信用コイル111をドライブ
し、カ−ド側電力受信コイル122に電磁結合させ、電
源回路124で直流に変換し、ダイオ−ド129を通し
て、負荷に電力を供給する。一方、送受信信号は、図4
と同様に、リ−ド/ライト制御回路205によって送受
信コイル112をドライブし、カ−ド側コイル122と
の間でデ−タの交信を行なう。カ−ド側コイルで送受信
された信号は、送信受信制御回路125を介して、CP
U126およびメモリ127との間で、デ−タのリ−ド
/ライトを行なう。
FIG. 5 shows an example in which power is supplied in a non-contact manner. The read write control circuit 1 drives the power transmission coil 111 by the power transmission circuit 115, electromagnetically couples the power transmission coil 111 to the card side power reception coil 122, converts the direct current by the power supply circuit 124, and passes through the diode 129. Supply power to the load. On the other hand, the transmission and reception signals are as shown in FIG.
Similarly, the read / write control circuit 205 drives the transmission / reception coil 112 to exchange data with the card side coil 122. The signal transmitted / received by the card side coil is transmitted to the CP via the transmission / reception control circuit 125.
Data read / write is performed between U126 and memory 127.

【0018】図5における構成の特徴は、電力伝送用の
コイルと信号伝送用のコイルとを独立してそれぞれ設け
たことにある。電力伝送用のコイルと信号伝送用のコイ
ルとを別々にすることによって、各々の伝送周波数を変
化させることが可能となる。電力と信号の周波数を替え
ることによって、電力伝送については、電力を効率よく
伝送する周波数を選択することが可能となる。電力伝送
については、受信側(カ−ド側)で電力を消費するた
め、コイルのインダクタンスや内部抵抗が大きいとコイ
ル自信で消費する電力が大きくなり、電力損失となる。
この電力損失を押さえるためのもう一つの方法は、イン
ダクタンスによる電力消費を小さくするために周波数を
下げる方法が有効である。電力を効率よく伝送するため
には、数100kHz程度の周波数が適当である。ま
た、信号については、それぞれのシステムに応じて、数
100kHzから数MHzまでの範囲で選択して使用す
る。特に、マイクロコンピュ−タなどを内蔵したカ−ド
などでは、数MHzのクロックが必要となり、電力周波
数とは異なるものとなるなど、電力伝送用のコイルと信
号伝送用のコイルとを独立してそれぞれ設けることによ
るメリットは、顕著なものがある。
A feature of the configuration in FIG. 5 is that a coil for power transmission and a coil for signal transmission are provided independently. Separating the power transmission coil and the signal transmission coil makes it possible to change the transmission frequency of each. By changing the frequency of the power and the frequency of the signal, it is possible to select a frequency at which the power is efficiently transmitted in the power transmission. As for power transmission, power is consumed on the receiving side (card side). Therefore, if the inductance or internal resistance of the coil is large, the power consumed by the coil itself increases, resulting in power loss.
As another method for suppressing the power loss, a method of lowering the frequency in order to reduce power consumption due to inductance is effective. To transmit power efficiently, a frequency of about several hundred kHz is appropriate. Signals are selected and used in a range of several hundred kHz to several MHz according to each system. In particular, a card with a built-in microcomputer or the like requires a clock of several MHz, which differs from the power frequency. For example, the coil for power transmission and the coil for signal transmission are independent. The merit of each provision is significant.

【0019】図6は従来技術のICカ−ドを示す図であ
る。図6(a)は接触式ICカ−ドであり、接点501
によって電力およびデ−タの転送を行ない、CPU12
6を介してメモリ127との間でデ−タの交信を行な
う。図6(b)は非接触式のICカ−ドであり、電力は
電力用コイル511で受電し、電源回路513によって
直流電圧に変換しCPUやメモリ素子に電力を供給す
る。図6(c)は1コイル方式の非接触式ICカ−ドで
あり、コイル522によって電力の受信ならびにデ−タ
の送受信を行なう。
FIG. 6 is a diagram showing a conventional IC card. FIG. 6A shows a contact type IC card, and a contact 501 is provided.
Power and data are transferred by the CPU 12
6, data is exchanged with the memory 127. FIG. 6B shows a non-contact type IC card. The power is received by a power coil 511, converted into a DC voltage by a power supply circuit 513, and supplied to a CPU and a memory element. FIG. 6C shows a one-coil type non-contact IC card in which power is received and data is transmitted and received by a coil 522.

【0020】[0020]

【発明の効果】本発明によれば、電力と情報を二つのコ
イルを用いて、別々に伝送する方法とし、さらに、電力
を受電するための接点を設け、電力の供給方法として非
接触方式と接触方式の両方を使用できるため、信号の送
信受信は非接触で行ない、電力の供給は接触式で行なう
ことによって、電力を非接触で伝送する方式に比べ、電
力伝送時のロスを少なくでき、リ−ドライト装置の低電
力化に効果がある。
According to the present invention, a method for transmitting power and information separately using two coils is provided, and a contact for receiving power is provided. Since both contact and contact methods can be used, signal transmission and reception are performed in a non-contact manner, and power is supplied in a contact manner, so that loss during power transmission can be reduced as compared with a method of transmitting power in a non-contact manner. This is effective in reducing the power of the read light device.

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

【図1】本発明の実施の形態の一例を示す図。FIG. 1 illustrates an example of an embodiment of the present invention.

【図2】クレジット精算などを行なう携帯型端末用IC
カ−ドの一例を示す図。
[Fig. 2] IC for portable terminal that performs credit settlement, etc.
The figure which shows an example of a card.

【図3】端末およびカ−ドの詳細構成を示す図。FIG. 3 is a diagram showing a detailed configuration of a terminal and a card.

【図4】本発明のもう一つの実施の形態を表す図。FIG. 4 is a diagram showing another embodiment of the present invention.

【図5】図5は非接触によって電力供給を行なう場合の
実施の形態を表す図。
FIG. 5 is a diagram showing an embodiment in a case where power is supplied in a non-contact manner.

【図6】図6は従来技術のICカ−ドを示す図。FIG. 6 is a diagram showing a conventional IC card.

【符号の説明】[Explanation of symbols]

1:リ−ドライト装置、2:ICカ−ド、111、12
1:電力送信用コイル、112、122:デ−タ送受信
コイル、113、123:接触式電源給電端子、11
4、201:電池、115:電力送信回路、116、2
05:デ−タリ−ドライト制御回路、124:電源回
路、125、210:送受信制御回路、126:CP
U、127:メモリ、128、129:ダイオ−ド、2
00:携帯型ICカ−ド端末、202:制御回路、20
3:操作用キ−スイッチ、204:液晶表示器、50
1:ICカ−ド接点、511:電力受信用コイル、51
2:デ−タ送受信コイル、513:電源回路、514:
送受信制御回路、521:電力および信号送受信コイ
ル、522:電源および送受信制御回路。
1: read write device, 2: IC card, 111, 12
1: power transmission coil, 112, 122: data transmission / reception coil, 113, 123: contact type power supply terminal, 11
4, 201: battery, 115: power transmission circuit, 116, 2
05: data read / write control circuit, 124: power supply circuit, 125, 210: transmission / reception control circuit, 126: CP
U, 127: memory, 128, 129: diode, 2
00: portable IC card terminal, 202: control circuit, 20
3: key switch for operation, 204: liquid crystal display, 50
1: IC card contact, 511: power receiving coil, 51
2: Data transmission / reception coil, 513: Power supply circuit, 514:
Transmission / reception control circuit, 521: power and signal transmission / reception coil, 522: power supply and transmission / reception control circuit.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 荒澤 伸幸 東京都国分寺市東恋ケ窪一丁目280番地 株式会社日立製作所中央研究所内 (72)発明者 森島 憲太 東京都国分寺市東恋ケ窪一丁目280番地 株式会社日立製作所中央研究所内 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Nobuyuki Arasawa 1-280 Higashi Koikekubo, Kokubunji-shi, Tokyo Inside the Central Research Laboratory, Hitachi, Ltd. Central Research Laboratory

Claims (3)

【特許請求の範囲】[Claims] 【請求項1】外部装置との間で、電力と情報とをコイル
を用いて伝送するICカ−ドにおいて、電力を受電する
ためのコイルのほかに、該電力を受電するための接点を
設け、該電力用コイルに接続された直流電圧発生手段と
該接点にそれぞれダイオ−ドを設け、ダイオ−ドを介し
て両方から負荷に電力を供給する手段を設け、供給する
手段として、コイルによる非接触方式と接点による接触
方式のどちらでも使用できることを特徴とするICカ−
ドおよびリ−ドライト装置。
An IC card for transmitting electric power and information to and from an external device using a coil is provided with a contact for receiving the electric power in addition to a coil for receiving the electric power. A diode is provided at each of the DC voltage generating means connected to the power coil and the contact, and means for supplying power to the load from both via the diode is provided. An IC car characterized by being able to use either a contact method or a contact method using contacts.
And lead light devices.
【請求項2】外部装置との間で、電力の供給および情報
の双方向伝送を行ない、情報を記憶するためのCPUお
よびメモリとを具備したICカ−ドにおいて、情報を伝
送するためのコイル1と、該コイル1に接続した送受信
制御手段と、電力を供給するためのコイル2と該コイル
2に接続された整流回路などから成る直流電圧発生手段
を設け、さらに、電力を供給するために接点から成る給
電手段を設け、該直流電圧発生手段の出力と接点による
給電手段にそれぞれダイオ−ドを設け、ダイオ−ドを介
して双方を接続し、情報の伝送は該コイル1により非接
触で行ない、電力の供給は該コイル2による非接触方式
または接点による接触方式のどちらでも使用できること
を特徴とするICカ−ドおよびリ−ドライト装置。
2. A coil for transmitting information to and from an external device in an IC card provided with a CPU and a memory for supplying power and bidirectionally transmitting information and storing information. 1, a transmission / reception control unit connected to the coil 1, a DC voltage generation unit including a coil 2 for supplying power, a rectifier circuit connected to the coil 2, and the like. A diode is provided for the output of the DC voltage generating means and the power supply means for the contact, and both are connected via the diode, and information is transmitted by the coil 1 in a non-contact manner. An IC card and a read / write device, wherein power can be supplied either by a non-contact method using the coil 2 or a contact method using a contact.
【請求項3】請求項2記載の送受信制御手段と、CPU
およびメモリ手段と、整流回路などから成る直流電圧発
生手段と、該直流電圧発生手段の出力と接点による給電
手段とを接続するためのダイオ−ドとを、一つのICに
格納したことを特徴とするICカ−ドおよびリ−ドライ
ト装置。
3. The transmission / reception control means according to claim 2, further comprising: a CPU.
And a DC means for connecting a DC voltage generating means comprising a rectifier circuit and a memory means, and a diode for connecting an output of the DC voltage generating means and a power supply means by a contact are stored in one IC. IC card and read write device.
JP8242928A 1996-09-13 1996-09-13 Ic card Pending JPH1091736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8242928A JPH1091736A (en) 1996-09-13 1996-09-13 Ic card

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8242928A JPH1091736A (en) 1996-09-13 1996-09-13 Ic card

Publications (1)

Publication Number Publication Date
JPH1091736A true JPH1091736A (en) 1998-04-10

Family

ID=17096307

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8242928A Pending JPH1091736A (en) 1996-09-13 1996-09-13 Ic card

Country Status (1)

Country Link
JP (1) JPH1091736A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000023942A1 (en) * 1998-10-21 2000-04-27 The Nippon Signal Co., Ltd Card with display function
WO2006040844A1 (en) * 2004-10-13 2006-04-20 Msa Co., Ltd. Card type computer
US7106485B2 (en) 2004-12-29 2006-09-12 Brother Kogyo Kabushiki Kaisha Electrophoretic display device and method of manufacturing same
JP2007502043A (en) * 2003-08-08 2007-02-01 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Unidirectional power transfer and bidirectional data transfer through a single inductive coupling
JP2011086096A (en) * 2009-10-15 2011-04-28 Renesas Electronics Corp Interface ic and memory card including the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000023942A1 (en) * 1998-10-21 2000-04-27 The Nippon Signal Co., Ltd Card with display function
US6457650B1 (en) 1998-10-21 2002-10-01 The Nippon Signal Co., Ltd. Card with display function
JP2007502043A (en) * 2003-08-08 2007-02-01 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Unidirectional power transfer and bidirectional data transfer through a single inductive coupling
WO2006040844A1 (en) * 2004-10-13 2006-04-20 Msa Co., Ltd. Card type computer
US7106485B2 (en) 2004-12-29 2006-09-12 Brother Kogyo Kabushiki Kaisha Electrophoretic display device and method of manufacturing same
JP2011086096A (en) * 2009-10-15 2011-04-28 Renesas Electronics Corp Interface ic and memory card including the same

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