JP2001155121A - Non-contact ic card reader-writer - Google Patents

Non-contact ic card reader-writer

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Publication number
JP2001155121A
JP2001155121A JP34072499A JP34072499A JP2001155121A JP 2001155121 A JP2001155121 A JP 2001155121A JP 34072499 A JP34072499 A JP 34072499A JP 34072499 A JP34072499 A JP 34072499A JP 2001155121 A JP2001155121 A JP 2001155121A
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Japan
Prior art keywords
ic card
non
card
contact ic
contact
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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
JP34072499A
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Japanese (ja)
Inventor
Takashi Nishitani
Takafumi Suzuki
Hideaki Yamamoto
英朗 山本
隆 西谷
尚文 鈴木
Original Assignee
Nippon Telegr & Teleph Corp <Ntt>
日本電信電話株式会社
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Application filed by Nippon Telegr & Teleph Corp <Ntt>, 日本電信電話株式会社 filed Critical Nippon Telegr & Teleph Corp <Ntt>
Priority to JP34072499A priority Critical patent/JP2001155121A/en
Publication of JP2001155121A publication Critical patent/JP2001155121A/en
Application status is Pending legal-status Critical

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Abstract

PROBLEM TO BE SOLVED: To provide a non-contact IC card device which does not have to emit an undesired radio wave nor impose any burden on a user in order to eliminate the problems on the occurrence of unneeded power consumption in the case of continuously outputting a signal for card recognition all the time or the damage of a non-contact advantage in the case a user has to recognize a card approach by performing a special operation as a means recognizing the card approach because there is nothing coming into contact with the card in a non-contact type IC card. SOLUTION: A permanent magnet is incorporated in the antenna of a normal reader-writer, and when an IC card is brought close to a DC electric field generated by the permanent magnet, an induced current is generated in the card and the coil of the reader/writer on the basis of the low of electromagnetic induction, and the approach of the card is recognized by detecting the induced current.

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、電磁誘導型の非接触ICカードシステムに用いられる、読み取り書き込み装置に関する。 The present invention relates are used in the non-contact IC card system of the electromagnetic induction type, it relates to read-write device.

【0002】 [0002]

【従来の技術】ICメモリを利用したICカードは、従来の磁気カードに比べ記憶できる情報量やセキュリティの高さに優れ、会員カードやネットワークやパソコンにアクセスするための鍵として、また海外ではテレホンカードなど、各方面で使われている。 BACKGROUND OF THE INVENTION IC card using the IC memory is superior to the height of the memory can be the amount of information and security compared to conventional magnetic card, as a key to access the membership card or a network or a personal computer, and telephone abroad such as cards, it is used in various fields. また、近年、非接触でデータの読み書きができるICカードシステムが普及してきており、なかでも交流磁界を利用した電磁誘導型システムでは、カードの動作に必要な電力を読み取り書き込み装置(リーダ・ライタ、以下R/Wと記す。)から供給可能で、カードに電池を搭載しないシステムが構成できるため、その普及はめざましい。 Further, in recent years, has become widespread an IC card system capable of reading and writing data without contact, the electromagnetic induction type system utilizing inter alia alternating magnetic field, the read-write device the power required for the operation of the card (reader-writer, hereinafter referred to as R / W.) can be supplied from, because it can configure the system carries no battery card, the spread remarkable. 現在国際標準化(ISO14443)の作業も進められており、199 Currently are also being promoted the work of the International Organization for Standardization (ISO14443), 199
9年春には、ICテレホンカードとしてのサービスも開始されている。 The 9-year spring, are also started service as IC telephone card. このように電磁誘導型の非接触ICカードシステムが普及するにつれ、これら非接触ICカードを会員カードに用いる事も考えられてきており、パソコンからネットワークへログインするための鍵として使われることも考えられる。 In this way as the non-contact IC card system of the electromagnetic induction type is widespread, these non-contact IC card has been also considered it to be used for membership card, also conceivably be used as a key to log in from a personal computer to the network It is. また家庭内で非接触ICカードを使う事に向けた、ノートパソコンに組み込むPCカード型のR/Wも考えられてきている(特願平10−20 Was also directed to use a non-contact IC card in the home, PC card type of R / W incorporated into the laptop and has also been considered (Japanese Patent Application No. 10-20
8714)。 8714).

【0003】非接触式ICカードは、文字通りR/Wと接触することなく動作するため、利用者にとって便利な反面、R/Wから見た場合に、カードの存在を確認するには、常にカードを認識するための信号を出し続けているか、或いはカードをR/Wの付近に近づけてから、カード所有者が何等かの操作を行ってR/Wを動作させる必要があった。 [0003] The non-contact IC card, in order to operate without literally making contact with the R / W, although convenient for the user, when viewed from the R / W, to confirm the presence of the card, always card or continues out a signal for recognizing, or the card from close to the vicinity of the R / W, it is necessary to operate the R / W cardholder performing operations what like. しかしながら、常に信号を送信し続けるには、R/Wの消費電力が大きくなり、ノートパソコンや携帯端末などに組み込むには問題であった。 However, to always continue to transmit the signal, power consumption of the R / W is increased, which is a problem is to incorporate such as notebook personal computers and mobile devices. また、カードの所有者が何らかの操作をする場合では、折角非接触で動作するカードの利便性を損なっていた。 Further, in the case where the owner of the card to any operation had impaired the convenience of card operating with precious contactless. このように、小さな消費電力で、かつ利用者の手を煩わす事なく、非接触ICカードを検出する仕組みが、R/Wに求められていた。 Thus, a small power consumption, and without troubling the user's hand, a mechanism for detecting the contactless IC card, has been required to R / W.

【0004】 [0004]

【発明が解決しようとする課題】本発明の目的は、上記のように従来問題となっていたR/Wと非接触で動作する電磁誘導型のICカード用R/Wにおける、非動作時の不要消費電力の節減を行い、動作開始時には非接触I An object of the present invention is to provide a, in the electromagnetic induction type IC card R / W that runs as described above, the conventional problem which has been a R / W in a non-contact, during the non-operation make savings of unnecessary power consumption, it is at the start of operation non-contact I
Cカードの接近または存在を検出する手段を備え、これによりICカードを検出することにより、R/Wを自動的に動作開始状態に設定することが出来るようなR/W Comprising means for detecting the approach or presence of C card, thereby by detecting the IC card, such as can be set to automatically start of operation of the R / W R ​​/ W
を提供する事にある。 It is to provide a.

【0005】 [0005]

【課題を解決するための手段】本発明では、上記目的を達成するために、電磁誘導型非接触ICカード及びそのR/Wで構成された非接触ICカードシステムにおいて、この非接触ICカードとR/Wの間で通信させるために、動作開始に際して利用者はこのICカードをR/ In the present invention SUMMARY OF], in order to achieve the above object, in the contactless IC card system composed of an electromagnetic induction type non-contact IC card and R / W, and the non-contact IC card to communicate between the R / W, the user upon start of the operation of the IC card R /
Wへ近づける動作を行う事に着目し、このICカード近接を検出してR/Wを動作状態に設定する方法とした。 Noting that performs an operation close to W, it was how to set up a R / W to the operating state by detecting the IC card proximity.
このため、ICカードとR/Wとの通信を行うためのアンテナ用コイルと、この通信用の送受信回路と、これらを制御する制御回路とを有することを基本構成とする非接触ICカードシステムにおいて、ICカードの接近を検出するための永久磁石を従来のR/Wのアンテナ内部に組み込む構成とした。 Thus, an antenna coil for communicating with the IC card and R / W, and transmission and reception circuit for the communication, in the contactless IC card system based structure that has a control circuit for controlling the It was constructed incorporating a permanent magnet for detecting the approach of the IC card to an antenna inside the conventional R / W.

【0006】以上の構成において、本発明においては、 [0006] In the above configuration, in the present invention,
未通信状態にある非動作時には通信のためのキャリアの発信を停止し、上記のICカードが接近したことを検出することによりR/Wは通信状態となり、キャリアを発信開始する構成としている。 The outgoing carrier for communication during non-operation in the non-communication state is stopped, R / W by detecting that the above IC card approaches become communication status, and configured to start transmitting a carrier. また、本システムが動作状態にあるとき、R/W側から予め定められた時間間隔で通信相手であるICカードを確認する信号を送信し、これに対する応答がなくなった時点で通信用キャリア及び信号の送信を停止する構成としている。 Further, when the present system is in operation, transmits a signal confirming the IC card is communicating at predetermined time intervals from the R / W side, the communication carrier and the signal at the time the response was lost for this It is configured to stop transmission.

【0007】 [0007]

【作用】永久磁石の作る時間変化のない直流的な磁束に対して、ICカードを近づける動作によって、この直流磁束をICカードのアンテナ用コイルが横切ることになり、電磁誘導の法則に基づいてカード側アンテナ用コイルに誘導電流が発生する。 Against DC flux without [action] time produced by the permanent magnet changes, the operation to bring the IC card, will be the DC magnetic flux antenna coil of the IC card across the card based on the law of electromagnetic induction induced current is generated in the coil side antenna. 更に、この誘導電流はレンツの法則により、直流磁界を打ち消す方向の磁束を発生させ、R/W側でこのICカード側からの磁束を検出することにより、カードの存在をR/Wに検出させるものである。 Furthermore, the induced current by the Lenz's law, to generate a magnetic flux in a direction to cancel a DC magnetic field, by detecting the magnetic flux from the IC card side in R / W side, to detect the presence of the card to the R / W it is intended.

【0008】 [0008]

【発明の実施の形態】本発明によるR/Wに搭載される電磁誘導型非接触ICカードを検出する仕組みを、図1 A mechanism for detecting an electromagnetic induction type non-contact IC card mounted to the R / W according to the embodiment of the present invention, FIG. 1
を用いて説明する。 It will be described with reference to. 図において、101はR/Wのアンテナコイル、102は永久磁石、103は非接触ICカードのアンテナコイルである。 In the figure, 101 is R / W of the antenna coil, is 102 permanent magnet, 103 is an antenna coil of the contactless IC card. R/Wのアンテナコイル101内部に永久磁石102を組み込むことで、R/W By incorporating permanent magnets 102 inside the antenna coil 101 of the R / W, R / W
のアンテナコイル内に、時間変化をしない静的な直流磁界を発生する磁束B1が形成される。 In the antenna coil, a magnetic flux B1 that generates a static direct current magnetic field which is not the time change is formed. ここで、R/Wに非接触ICカードを近づけると(A図)、この非接触I Here, the closer the non-contact IC card R / W (A panel), the non-contact I
Cカードのアンテナコイル103が永久磁石102の作る直流的な磁束B1を横切ることで、カード内部のアンテナコイルに誘導電流I1が発生し(B図)、これにより非接触ICカードからR/Wの永久磁石102が生成する磁束B1を打ち消す向きの磁束B2が生成される(C図)。 By the antenna coil 103 of the C card crosses the DC magnetic flux B1 produced by the permanent magnet 102, the induced current I1 is generated in the antenna coil card (B panel), thereby the non-contact IC card R / W flux B2 direction to cancel the magnetic flux B1 that the permanent magnet 102 is generated is generated (C panel). 非接触ICカードのアンテナコイル103が生成する磁束B2は、R/Wのアンテナコイル101を貫くため、R/Wのアンテナコイル101内に時間変化する磁束B2が横切る事になり、R/Wのアンテナコイル101に誘導電流I2が流れることになる(D図)。 Flux B2 which the antenna coil 103 to generate a non-contact IC card, in order to penetrate the antenna coil 101 of the R / W, will be the magnetic flux B2 which changes time the antenna coil 101 of the R / W crosses, the R / W induced current I2 in the antenna coil 101 so that the flow (D view).
従って、R/Wのアンテナコイル101に流れる誘導電流I2をR/Wが検出すれば、認識されていなかった非接触ICカードがR/Wとの通信エリア内に挿入された事を検知することが可能になる。 Therefore, an induced current I2 flowing through the antenna coil 101 of the R / W by detecting the R / W, the non-contact IC card which has not been recognized detects that it has been inserted into the communication area with the R / W It becomes possible.

【0009】図2に、本発明の電磁誘導型非接触ICカード用R/Wの実施例として、R/Wの機能ブロック図を示す。 [0009] Figure 2, as an embodiment of an electromagnetic induction type non-contact IC card R / W of the present invention, shows a functional block diagram of the R / W. 図において201はR/W本体、202はパーソナルコンピュータ等の端末、203は接続ケーブル、 201 R / W body in Fig, terminals such as personal computers 202, 203 connecting cable,
211はR/Wのアンテナコイル、212は永久磁石、 211 R / W of the antenna coil, 212 is a permanent magnet,
213は誘導電流検出回路、214は送受信回路、21 213 induced current detection circuit, 214 receiving circuit, 21
5は制御回路、216は端末とのインタフェース回路、 5 control circuit, the interface circuit of the terminals 216,
217は電源回路である。 217 is a power supply circuit. 本実施の形態では、R/Wはパソコン等の端末と接続ケーブル203で電気的に接続されており、カードへ書き込む情報や、カードから読み取る情報の管理などは、基本的に端末202が行う構成になっているが、特願平10−208714で見られるような、PCMCIAインタフェースで端末に組み込んで動作する、PCカード型R/Wに、本発明のカード検出の仕組みを組み込んでも、問題なく動作する事は言うまでもない。 In this embodiment, R / W is electrically connected with the terminal and the connection cable 203 such as a personal computer, and information to be written to the card, such as management information read from the card is basically formed by the terminal 202 is performed While going on to, as seen in Japanese Patent Application No. 10-208714, operates by incorporating the terminal in PCMCIA interface, a PC card type R / W, be incorporated a mechanism of the card detection of the present invention, it works fine it is needless to say that. また、PCMCIA型の場合や、端末とR Further, the PCMCIA type or terminals and R
/Wの接続をUSBなどの電源供給も可能なケーブルで行えば、R/Wに電源回路が不要になることも勿論である。 By performing / W in connection with the power supply that can also be a cable such as a USB, it is of course that the power supply circuit to the R / W is not required.

【0010】図3に、本発明によるR/Wと非接触IC [0010] FIG. 3, the non-contact IC and R / W according to the present invention
カードとの通信開始からR/Wの動作終了までの例を示す。 An example from the start of communication with the card until the end of the operation of the R / W. 図に於いて、4は非接触ICカード、18はR/W In the figure, the 4 non-contact IC card, 18 R / W
の送受信や制御等の回路部、41は非接触ICカードのアンテナコイル(図1におけるアンテナコイル103に同じ。)、42は非接触ICカードの回路部である。 Circuit portion of the transmission and reception control of, 41 antenna coil of the contactless IC card (the same as the antenna coil 103 in FIG. 1.), 42 is a circuit portion of the non-contact IC card. 本発明によるR/W本体201では、非接触ICカード4 In R / W body 201 according to the present invention, the non-contact IC card 4
と通信していない場合には、永久磁石による時間変化のない直流磁界(磁束)B1のみが存在する「待ち」状態となっている(A図)。 If not communicating is a "wait" state, only the DC magnetic field (magnetic flux) B1 no time change due to the permanent magnets are present is the (A panel). 非接触ICカード4を近づけると、図1で示した原理により、R/W本体201の検出回路213が非接触ICカード4を検出し、非接触IC When brought close to the noncontact IC card 4, the principle shown in FIG. 1, the detection circuit 213 of the R / W body 201 detects the non-contact IC card 4, the non-contact IC
カード4と通信兼パワー供給のためのキャリアC1を送信開始する(B図)。 The carrier C1 starts transmission for the communication and power supply to the card 4 (B panel). キャリア送信後、R/W本体20 After the carrier transmission, R / W body 20
1から非接触ICカード4を認識するための信号、或いは非接触ICカード4と通信するための信号S1を送信し、非接触ICカード4からは信号S1に対するレスポンスR1が送信され、通信が実行される(C図)。 Signal for recognizing non-contact IC card 4 from 1, or transmits a signal S1 to communicate with the noncontact IC card 4, from the noncontact IC card 4 responses R1 is transmitted to the signal S1, the communication is performed It is (C panel). また、本発明のR/W本体201では、非接触ICカード4が通信エリア内に存在する事を確認し続けるために、 Further, the R / W body 201 of the present invention, because a non-contact IC card 4 continues to confirm that existing in the communication area,
カードのある定められたメモリエリアの情報を読み出す信号と、新たに通信エリア内に挿入される非接触ICカード4'検出のための信号S2を、非接触ICカード4 A signal for reading the information in the memory area defined with a card, the signal S2 for the noncontact IC card 4 'detected to be inserted into new communication area, the non-contact IC card 4
へデータの読み書きを行う以外でも、決められた時間間隔で送信し続け、カードからの応答R2を受信する事で、非接触ICカード4の存在や新たな非接触ICカード4'の追加を確認し続ける(D図)。 Other than reading and writing data to, continue to transmit in time a predetermined interval, by receiving the response R2 from the card, verify the additional non-contact presence or new contactless IC card 4 of the IC card 4 ' continue to (D view). 従って、一枚の非接触ICカードが認識されている状態で、さらにもう一枚の非接触ICカード4'が通信エリア内に挿入された場合でも、R/W本体201から決められた間隔で送信されるカード検出のための信号S2に対する、追加された非接触ICカード4'からの応答信号R2'で、非接触ICカードを認識することが可能になる。 Accordingly, in a state where one of the non-contact IC card is recognized, further even if the other one of the non-contact IC card 4 'is inserted in the communication area, at intervals determined from the R / W body 201 for the signal S2 for the card detection to be transmitted, in 'response signal R2 from' the noncontact IC card 4 has been added, it is possible to recognize the contactless IC card. 非接触I Non-contact I
Cカード4を通信エリアから離した場合でも(E図)、 Even when releasing the C card 4 from the communication area (E view)
R/W本体201はカードの認識及び追加確認のための信号S2を送信し続けるが、非接触ICカードからの応答が無いため、カードが無くなった事をR/Wは認識でき、キャリア及び信号の送信を停止し、(A図)と同様の「待ち」状態に移る。 R / W body 201 continues to transmit a signal S2 for recognition and additional confirmation of cards, since there is no response from the contactless IC card, R / W that card is no longer can recognize, carrier and signal sending a stop, moves to the same "wait" state (a panel). このように、本発明によるR/ Thus, according to the invention R /
Wでは、非接触ICカードが存在するときのみR/W本体201が動作しており、それ以外の時間帯では、検出回路のみが動作している「待ち」状態となっている。 In W, is operating the R / W body 201 only when the non-contact IC card is present, the other in the time period, only the detection circuit is in the "wait" state running. また、非接触ICカード4が通信エリア内に挿入された後のR/W本体201と非接触ICカード4間で通信を行っている間でも、永久磁石による時間変化しない磁束B Further, even while the noncontact IC card 4 is performed with the R / W body 201 after being inserted into the communication area of ​​the communication between the noncontact IC card 4, no time variation due to the permanent magnet flux B
1は存在し続けるが、R/W本体201と非接触ICカード4間の通信には、交流磁界を利用しているため、磁束B1は通信に影響を与えない。 1 continues to exist, the communication between R / W body 201 and the non-contact IC card 4, because it uses the alternating magnetic field, magnetic flux B1 does not affect the communication.

【0011】 [0011]

【発明の効果】以上のように本発明により、従来の非接触ICカードR/Wに、永久磁石と簡単な検出回路を組み込む事で、非接触ICカードをR/Wに近づける動作だけでR/Wが動作を開始し、未使用時には余分な電力消費を押さえる非接触ICカード読み取り書き込み装置が実現出来た。 The present invention as described above, according to the present invention, the conventional non-contact IC card R / W, By incorporating a permanent magnet and simple detection circuit, only the operation to approach the non-contact IC card R / W R / W starts to operate, the non-contact IC card reading and writing apparatus to suppress excessive power consumption could realized when not in use.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明によるR/Wの非接触ICカードを検知する方法の原理図。 The principle diagram of a method for detecting the non-contact IC card R / W according to the invention; FIG.

【図2】本発明によるR/Wの機能ブロック図。 Functional block diagram of the R / W according to the invention, FIG.

【図3】本発明によるR/Wの動作例。 Operation Example of the R / W according to the present invention; FIG.

【符号の説明】 DESCRIPTION OF SYMBOLS

1:R/W、本体 2:端末 3:接続ケーブル 4:非接触I 1: R / W, the body 2: the terminal 3: connection cable 4: contactless I
Cカード 11、101:R/Wのアンテナコイル、 102、212:永久磁石 18:R/ C Card lines 11 and 101: R / W of the antenna coil, 102,212: permanent magnet 18: R /
Wの回路部 213:検出回路 214:送受信回路 215:制御回路 216:端末とのインタフェース回路 217:電源回路 41、103:非接触ICカードのアンテナコイル、 42:非接触ICカードの回路部 B1:永久磁石による時間変化しない磁束 B2:非接触ICカードがR/Wの永久磁石が生成する磁束を打ち消す向きに生成する磁束 C1:R/Wが送信するキャリア、 I1:カードのアンテナコイルに誘導される電流 I2:R/Wのアンテナコイルに誘導される電流、 S1:R/Wからカードへ送信される信号 S2:カードの存在及びカードの追加を認識するためにR/Wからカードへ送信される信号 R1:S1に対するカードの応答信号 R2,R2':S2に対するカードの応答信号 W circuit 213: detector 214: reception circuit 215: control circuit 216: interface with the terminal circuit 217: power supply circuit 41,103: non-contact IC card of the antenna coil, 42: circuit part of the non-contact IC card B1: flux B2 no time variation of the permanent magnet: flux contactless IC card is generated in a direction to cancel the magnetic flux generated by the permanent magnet of the R / W C1: carrier R / W transmits, I1: is induced in the card antenna coil that current I2: current induced in the antenna coil of the R / W, S1: signal transmitted from the R / W to the card S2: transmitted from the R / W to the card to recognize the additional card presence and card that signal R1: card response signal for S1 R2, R2 ': the card response signal with respect to S2

───────────────────────────────────────────────────── フロントページの続き (72)発明者 西谷 隆 東京都千代田区大手町二丁目3番1号 日 本電信電話株式会社内 Fターム(参考) 5B058 CA15 CA22 ────────────────────────────────────────────────── ─── front page of the continuation (72) inventor Takashi Nishitani Otemachi, Chiyoda-ku, tokyo chome third No. 1 Date this telegraph and telephone Corporation in the F-term (reference) 5B058 CA15 CA22

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】交流磁界を通信媒体とし、通信用のアンテナコイルと、記憶素子と、送受信回路、及びこれらを制御する回路を有する電磁誘導型の非接触ICカードに対してデータを読み取り書き込むための、非接触ICカード読み取り書き込み装置であって、該非接触ICカード読み取り書き込み装置は、通信用のアンテナコイルと、 [Claim 1] and an alternating magnetic field communication media, and an antenna coil for communication, a storage element, transceiver circuitry, and for writing read data to the non-contact IC card of the electromagnetic induction type having a circuit for controlling the of a non-contact IC card reading and writing apparatus, the non-contact IC card reading and writing apparatus, an antenna coil for communication,
    送受信回路、及びこれらを制御する回路を少なくとも有し、該通信用のアンテナコイルの内部に永久磁石を備え、該永久磁石による磁束と、前記非接触ICカードのアンテナコイルの相互作用によって発生する磁束によって、該非接触ICカード読み取り書き込み装置のアンテナコイルに誘起する電流を検出する回路を備えることを特徴とした非接触ICカード読み取り書き込み装置。 Transceiver circuitry, and includes at least a circuit for controlling these, provided with a permanent magnet in the interior of the antenna coil of the vent credit generates a magnetic flux produced by the permanent magnets, by the interaction of the antenna coil of the contactless IC card flux Accordingly, the non-contact IC card reading and writing apparatus further comprising a circuit for detecting a current induced in the antenna coil of the non-contact IC card reading and writing apparatus.
  2. 【請求項2】請求項1で示す非接触ICカード読み取り書き込み装置において、非接触ICカードと未通信状態時に、通信に用いるキャリアを停止させていることを特徴とする非接触ICカード読み取り書き込み装置であって、該非接触ICカードと永久磁石の相互作用によって生じる時間変化する磁束により、読み取り書き込み装置のアンテナコイルに誘導される電流を上記検出回路が検知することで、該非接触ICカードとの通信動作を開始することを特徴とした非接触ICカード読み取り書き込み装置。 2. A contactless IC card reading and writing apparatus shown in claim 1, when the non-contact IC card and a non-communication state, the non-contact IC card reading and writing device, characterized in that it stops the carrier to be used for communication a is, by the time varying magnetic flux caused by the interaction of the non-contact IC card and the permanent magnet, the current induced in the antenna coil of the read-write device by the detection circuit detects, communication with the noncontact IC card contactless IC card reading and writing apparatus is characterized in that to start the operation.
  3. 【請求項3】請求項1及び2記載の非接触ICカード読み取り書き込み装置において、通信状態にある非接触I 3. A non-contact IC card reading and writing apparatus of claim 1 and 2 wherein the contactless I in communication
    Cカードに対して、間隔をあけて定められた時間間隔である特定のメモリエリアへの読み込み、或いは認識していない非接触ICカードを認識するための信号を送信し、該非接触ICカードからの応答が無い場合に、通信用キャリア、及び信号の送信を停止することを特徴とした非接触ICカード読み取り書き込み装置。 For the C card, read to a particular memory area which is a time interval defined by spaced, or send a signal for recognizing the non-contact IC card that does not recognize, from the non-contact IC card If the answer is no, the communication carrier, and the signal noncontact IC card reading and writing apparatus, wherein the stop sending.
JP34072499A 1999-11-30 1999-11-30 Non-contact ic card reader-writer Pending JP2001155121A (en)

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US10282742B2 (en) 1999-12-03 2019-05-07 Nike, Inc. Interactive use and athletic performance monitoring and reward method, system, and computer program product
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JP4723633B2 (en) * 2005-03-30 2011-07-13 ノキア コーポレイション Reduction in power consumption short-range wireless communication reader associated with the mobile terminal
JP2014050760A (en) * 2005-06-27 2014-03-20 Nike Internatl Ltd System for activating and/or authenticating electronic device for movement with footwear and other uses
JP2015157142A (en) * 2005-06-27 2015-09-03 ナイキ イノベイト セー. フェー. System for activating and/or authenticating electronic device for movement with footwear and other uses
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