JP2002279378A - Multiple power supply combination type ic card - Google Patents
Multiple power supply combination type ic cardInfo
- Publication number
- JP2002279378A JP2002279378A JP2001076089A JP2001076089A JP2002279378A JP 2002279378 A JP2002279378 A JP 2002279378A JP 2001076089 A JP2001076089 A JP 2001076089A JP 2001076089 A JP2001076089 A JP 2001076089A JP 2002279378 A JP2002279378 A JP 2002279378A
- Authority
- JP
- Japan
- Prior art keywords
- card
- mobile phone
- supplied
- power supply
- power
- 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
Links
- 230000006854 communication Effects 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 41
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 12
- 230000001413 cellular effect Effects 0.000 abstract 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000001514 detection method Methods 0.000 description 2
- 102100033040 Carbonic anhydrase 12 Human genes 0.000 description 1
- 101000867855 Homo sapiens Carbonic anhydrase 12 Proteins 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record 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
- G06K19/067—Record 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
- G06K19/07—Record 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
- G06K19/0701—Record 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 at least one of the integrated circuit chips comprising an arrangement for power management
Landscapes
- Engineering & Computer Science (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Credit Cards Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、携帯電話機に組み
込まれるコンビネーション型ＩＣカードへの供給電力を
効率的に使用するようにした多電源式コンビネーション
型ＩＣカードに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multiple power supply combination type IC card which efficiently uses power supplied to a combination type IC card incorporated in a portable telephone.
【０００２】[0002]
【従来の技術】従来、１チップＩＣ内に接触部通信用端
子と非接触部通信用アンテナを備えて接触式あるいは非
接触式で通信できるようにしたコンビネーション型ＩＣ
カードが知られており、これを図２の例で説明する。図
２は携帯電話機に組み込まれたコンビネーション型ＩＣ
カードの電源供給方法を説明する図である。２０はコン
ビネーション型ＩＣカードで、非接触部通信用アンテナ
２１と、携帯電話機と接続される接触部通信インターフ
ェースコネクタ２６とを備えている。ＩＣカードロジッ
ク回路２５への電源供給は、接触部通信インターフェー
スコネクタ２６のＶｃｃ端子とＧＮＤ端子を介して携帯
電話機の電池より、電源レギュレータ２４を介して供給
される。電源レギュレータ２４はＩＣカードロジック回
路２５および通信用アンテナ２１に適した電圧に変換し
てこれらに電源供給する。この電源供給により、非接触
部通信用アンテナ２１が動作し、自動改札機との非接触
通信が行われる。なお、Ａ／Ｄ変換回路２３はＩＣカー
ドロジック回路２５からの信号をアナログ信号に変換し
てアンテナから送信し、アンテナで受信した信号をデジ
タル信号に変換してＩＣカードロジック回路に取り込む
ためのものである。2. Description of the Related Art Conventionally, a combination type IC in which a contact type communication terminal and a non-contact type communication antenna are provided in a one-chip IC to enable contact type or non-contact type communication.
Cards are known and will be described with the example of FIG. Figure 2 shows a combination type IC built into a mobile phone
FIG. 4 is a diagram illustrating a method for supplying power to a card. A combination type IC card 20 includes a non-contact portion communication antenna 21 and a contact portion communication interface connector 26 connected to a mobile phone. The power supply to the IC card logic circuit 25 is supplied from the battery of the mobile phone via the power supply regulator 24 via the Vcc terminal and the GND terminal of the contact part communication interface connector 26. The power supply regulator 24 converts the voltage into a voltage suitable for the IC card logic circuit 25 and the communication antenna 21 and supplies power to them. By this power supply, the non-contact portion communication antenna 21 operates, and non-contact communication with the automatic ticket gate is performed. The A / D conversion circuit 23 converts the signal from the IC card logic circuit 25 into an analog signal, transmits the signal from the antenna, converts the signal received by the antenna into a digital signal, and takes in the digital signal into the IC card logic circuit. It is.
【０００３】[0003]
【発明が解決しようとする課題】ところで、図２に示し
た従来のコンビネーション型ＩＣカードにおける電源供
給方法では、すべて携帯電話機の電池に依存しているた
め、そのエネルギー残量がなくなった場合や何らかのト
ラブルで携帯電話機からの電源供給が途切れた場合に
は、非接触通信ができなくなり、その結果、自動改札が
できなくなってしまうことになる。In the power supply method of the conventional combination type IC card shown in FIG. 2, all of the power supply methods depend on the battery of the mobile phone. If the power supply from the mobile phone is interrupted due to a trouble, contactless communication cannot be performed, and as a result, automatic ticket gates cannot be performed.
【０００４】[0004]
【課題を解決するための手段】本発明は上記課題を解決
するためのもので、携帯電話機からの電源供給がなくな
った場合、非接触部通信用アンテナを通して電磁誘導に
より供給される電力を効率的に利用して非接触通信を維
持できるようにしたものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and efficiently supplies power supplied by electromagnetic induction through a non-contact portion communication antenna when power supply from a portable telephone is stopped. To maintain non-contact communication.
【０００５】請求項１の発明は、接触部通信用端子と非
接触部通信用アンテナとを有し、携帯電話機に組み込ま
れて携帯電話機より電源が供給されるコンビネーション
型ＩＣカードにおいて、携帯電話機から供給される電圧
を検出する電圧検出手段と、前記電圧検出手段で検出し
た電圧が所定値以下になったとき、携帯電話機との間の
リーク電流路を遮断する電流遮断回路とを備え、前記電
流遮断回路が動作したとき、非接触部通信用アンテナの
電磁誘導により電源供給を受けるようにしたことを特徴
とする。According to a first aspect of the present invention, there is provided a combination type IC card having a contact portion communication terminal and a non-contact portion communication antenna, which is incorporated in a mobile phone and supplied with power from the mobile phone. Voltage detecting means for detecting a supplied voltage; and a current cutoff circuit for cutting off a leak current path between the mobile phone and the mobile phone when a voltage detected by the voltage detecting means becomes a predetermined value or less. When the cutoff circuit operates, power is supplied by electromagnetic induction of the non-contact portion communication antenna.
【０００６】[0006]
【発明の実施の形態】以下、本発明の実施の形態を図面
を参照しつつ説明する。図１は本発明の多電源式コンビ
ネーション型ＩＣカードを説明する図である。本発明は
非接触部通信用アンテナを介して、電源供給を可能にす
る回路を付加し、携帯電話機の電池の残量がなくなった
場合等、携帯電話機からの電源供給がとぎれた場合であ
っても、非接触通信を可能にしたものである。図におい
て、コンビネーション型ＩＣカード１は非接触部通信用
アンテナ２と、接触部通信インターフェースコネクタ６
を備えている。接触部通信インターフェースコネクタ６
のＶｃｃ端子とＧＮＤ端子とから電源レギャレータ４を
介して、携帯電話機の電池（図示省略）よりＩＣカード
ロジック回路５、非接触部通信用アンテナ２に電源供給
を受けているのは従来と同じである。携帯電話機からの
電源供給により非接触部通信用アンテナ２が動作して自
動改札機等と非接触通信が可能である。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a diagram illustrating a multi-power-supply combination IC card according to the present invention. The present invention adds a circuit that enables power supply via a non-contact portion communication antenna, and is used when the power supply from the mobile phone is interrupted, such as when the battery of the mobile phone runs out. Also enables non-contact communication. In the figure, a combination type IC card 1 includes a non-contact portion communication antenna 2 and a contact portion communication interface connector 6.
It has. Contact part communication interface connector 6
The power supply from the battery (not shown) of the mobile phone to the IC card logic circuit 5 and the non-contact portion communication antenna 2 is supplied from the Vcc terminal and the GND terminal of the mobile phone via the power supply legator 4 as in the conventional case. is there. The non-contact portion communication antenna 2 is operated by power supply from the mobile phone, and non-contact communication with an automatic ticket gate and the like is possible.
【０００７】さらに本発明においては、非接触部通信用
アンテナ１から電磁誘導により得られた交流電力を整流
回路７で直流電力に変換して電源レギュレータ４を通し
て利用する。即ち、非接触通信を行う相手側、例えば自
動改札機から通信時に電磁誘導で得られる微弱な電力を
電源レギュレータ４を介してＩＣカードロジック回路５
への供給電力とする。電磁誘導により供給されるエネル
ギーでＩＣカードロジック回路５を動作させた場合、接
触部通信インターフェースコネクタ６とＩＣカードロジ
ック回路５との間のデータ入出力ライン、クロックライ
ンを通して携帯電話機との間でリーク電流が流れると、
電磁誘導による供給エネルギーが微弱なため、ＩＣカー
ドロジック回路５を適切に動作できない場合が生ずる。Further, in the present invention, AC power obtained by electromagnetic induction from the non-contact portion communication antenna 1 is converted into DC power by the rectifier circuit 7 and used through the power supply regulator 4. That is, a weak electric power obtained by electromagnetic induction at the time of communication from a counterpart of non-contact communication, for example, an automatic ticket gate, is transmitted to the IC card logic circuit 5 via the power supply regulator 4.
Power supplied to When the IC card logic circuit 5 is operated with the energy supplied by the electromagnetic induction, leakage occurs between the mobile phone and the data input / output line between the contact part communication interface connector 6 and the IC card logic circuit 5 and the clock line. When current flows,
Since the energy supplied by the electromagnetic induction is weak, the IC card logic circuit 5 may not operate properly.
【０００８】そこで、本発明は電磁誘導エネルギーで動
作させる場合には、コネクタを通して携帯電話機との間
にリーク電流が生じないように回路遮断素子１０，１
１，１２を設けたものである。即ち、電圧検出回路９で
携帯電話機から供給される電圧を監視し、供給される電
圧がある一定の電圧以下になったことを検出したら、回
路遮断素子１０，１１，１２によりデータ入出力ライ
ン、クロックライン等のリーク電流が流れる電流路を遮
断し、電源供給をアンテナ側に切り替える。このように
遮断回路により携帯電話機との間のリーク電流を防ぐこ
とで、非接触部通信用アンテナ２を通して受ける電磁誘
導による電力を効率よくＩＣカードロジック回路５に使
用できるため、携帯電話機より電源供給がなくなった場
合でも、自動改札機と非接触通信が可能で、自動改札を
行うことができる。Therefore, when the present invention is operated with electromagnetic induction energy, the circuit breakers 10 and 1 prevent leakage current from being generated between the portable telephone and the connector through the connector.
1, 12 are provided. That is, the voltage supplied from the mobile phone is monitored by the voltage detection circuit 9, and when it is detected that the supplied voltage is lower than a certain voltage, the data input / output lines are controlled by the circuit cutoff elements 10, 11, and 12. A current path such as a clock line through which a leak current flows is cut off, and power supply is switched to the antenna side. By preventing the leakage current between the mobile phone and the mobile phone by the cutoff circuit, the power by electromagnetic induction received through the non-contact portion communication antenna 2 can be efficiently used for the IC card logic circuit 5, so that the power is supplied from the mobile phone. Even when there are no more tickets, contactless communication with an automatic ticket gate is possible, and automatic ticket gates can be performed.
【０００９】[0009]
【発明の効果】以上のように本発明によれば、携帯電話
機に組み込むコンビネーション型ＩＣカードにおいて、
携帯電話機より電源供給がなくなった場合でも非接触部
通信用アンテナを通して電磁誘導により供給される電力
を効率的に利用できるため、自動改札機等との通信を維
持することができる。As described above, according to the present invention, in a combination type IC card incorporated in a mobile phone,
Even when power is not supplied from the mobile phone, the power supplied by electromagnetic induction through the non-contact portion communication antenna can be efficiently used, so that communication with an automatic ticket gate and the like can be maintained.
【図１】 本発明の多電源式コンビネーション型ＩＣカ
ードの説明図である。FIG. 1 is an explanatory diagram of a multiple power supply combination type IC card of the present invention.
【図２】 従来のコンビネーション型ＩＣカードの電源
供給方法を説明する図である。FIG. 2 is a diagram illustrating a power supply method of a conventional combination type IC card.
１…コンビネーション型ＩＣカード、２…非接触部通信
用アンテナ、４…電源レギュレータ、５…ＩＣカードロ
ジック回路、６…接触部通信インターフェースコネク
タ、９…電圧検出回路、１０，１１，１２…回路遮断素
子。DESCRIPTION OF SYMBOLS 1 ... Combination type IC card, 2 ... Non-contact part communication antenna, 4 ... Power supply regulator, 5 ... IC card logic circuit, 6 ... Contact part communication interface connector, 9 ... Voltage detection circuit, 10, 11, 12 ... Circuit interruption element.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小河清隆 東京都港区芝浦３丁目８番10号 ジェイア ール東日本メカトロニクス株式会社内 (72)発明者 佐藤正信 東京都港区芝浦３丁目８番10号 ジェイア ール東日本メカトロニクス株式会社内 Ｆターム(参考） 2C005 MA25 MB07 NA04 NA08 QA11 QA15 TA21 TA22 5B035 BA03 BB09 CA12 CA22 CA23 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kiyotaka Ogawa 3-8-10 Shibaura, Minato-ku, Tokyo Inside JR East Mechatronics Co., Ltd. (72) Inventor Masanobu Sato 3-8-10 Shibaura, Minato-ku, Tokyo No. JR East Japan Mechatronics Co., Ltd. F-term (reference) 2C005 MA25 MB07 NA04 NA08 QA11 QA15 TA21 TA22 5B035 BA03 BB09 CA12 CA22 CA23
Claims (1)
テナとを有し、携帯電話機に組み込まれて携帯電話機よ
り電源が供給されるコンビネーション型ＩＣカードにお
いて、携帯電話機から供給される電圧を検出する電圧検
出手段と、前記電圧検出手段で検出した電圧が所定値以
下になったとき、携帯電話機との間のリーク電流路を遮
断する電流遮断回路と、を備え、前記電流遮断回路が動
作したとき、非接触部通信用アンテナの電磁誘導により
電源供給を受けるようにしたことを特徴とする多電源式
コンビネーション型ＩＣカード。1. A combination type IC card having a contact part communication terminal and a non-contact part communication antenna, which is incorporated in a mobile phone and is supplied with power from the mobile phone. Voltage detecting means for detecting, and a current cutoff circuit for cutting off a leak current path between the mobile phone and the mobile phone when the voltage detected by the voltage detecting means becomes a predetermined value or less, wherein the current cutoff circuit operates. A multi-power combination IC card characterized by receiving power supply by electromagnetic induction of a non-contact portion communication antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001076089A JP2002279378A (en) | 2001-03-16 | 2001-03-16 | Multiple power supply combination type ic card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001076089A JP2002279378A (en) | 2001-03-16 | 2001-03-16 | Multiple power supply combination type ic card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002279378A true JP2002279378A (en) | 2002-09-27 |
Family
ID=18933080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001076089A Pending JP2002279378A (en) | 2001-03-16 | 2001-03-16 | Multiple power supply combination type ic card |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002279378A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005085269A (en) * | 2003-09-05 | 2005-03-31 | Samsung Electronics Co Ltd | Chip card having contact type and noncontact type operations at the same time |
| US7255284B2 (en) | 2005-02-24 | 2007-08-14 | Samsung Electronics Co., Ltd. | Smart card and method for controlling a mixed mode thereof |
| US7757958B2 (en) | 2004-12-15 | 2010-07-20 | Kabushiki Kaisha Toshiba | Card-shaped memory device incorporating IC card function, adapter for the same and host device |
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| JPH10302028A (en) * | 1997-04-30 | 1998-11-13 | Matsushita Electric Ind Co Ltd | Non-contact ic card |
| JPH11213111A (en) * | 1998-01-26 | 1999-08-06 | Ntt Data Corp | Data carrier and communication terminal |
| JP2000090220A (en) * | 1998-09-09 | 2000-03-31 | Hitachi Maxell Ltd | Non-contact ic card and non-contact ic card system |
| JP2000113148A (en) * | 1998-10-08 | 2000-04-21 | Motorola Japan Ltd | Combination card |
| JP2000184587A (en) * | 1998-12-10 | 2000-06-30 | Sony Corp | Power supply and card type storage medium |
| JP2000341763A (en) * | 1999-05-31 | 2000-12-08 | Dainippon Printing Co Ltd | Radio communication system, portable recording medium and information processor |
-
2001
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Patent Citations (7)
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|---|---|---|---|---|
| JPH10261053A (en) * | 1997-03-18 | 1998-09-29 | Toshiba Corp | Radio card adapter |
| JPH10302028A (en) * | 1997-04-30 | 1998-11-13 | Matsushita Electric Ind Co Ltd | Non-contact ic card |
| JPH11213111A (en) * | 1998-01-26 | 1999-08-06 | Ntt Data Corp | Data carrier and communication terminal |
| JP2000090220A (en) * | 1998-09-09 | 2000-03-31 | Hitachi Maxell Ltd | Non-contact ic card and non-contact ic card system |
| JP2000113148A (en) * | 1998-10-08 | 2000-04-21 | Motorola Japan Ltd | Combination card |
| JP2000184587A (en) * | 1998-12-10 | 2000-06-30 | Sony Corp | Power supply and card type storage medium |
| JP2000341763A (en) * | 1999-05-31 | 2000-12-08 | Dainippon Printing Co Ltd | Radio communication system, portable recording medium and information processor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005085269A (en) * | 2003-09-05 | 2005-03-31 | Samsung Electronics Co Ltd | Chip card having contact type and noncontact type operations at the same time |
| US7757958B2 (en) | 2004-12-15 | 2010-07-20 | Kabushiki Kaisha Toshiba | Card-shaped memory device incorporating IC card function, adapter for the same and host device |
| CN1790392B (en) * | 2004-12-15 | 2011-07-13 | 株式会社东芝 | Host device |
| US7255284B2 (en) | 2005-02-24 | 2007-08-14 | Samsung Electronics Co., Ltd. | Smart card and method for controlling a mixed mode thereof |
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Legal Events
| Date | Code | Title | Description |
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