JP2005165839A - Reader/writer, ic tag, article control device, and optical disk device - Google Patents

Reader/writer, ic tag, article control device, and optical disk device Download PDF

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JP2005165839A
JP2005165839A JP2003406003A JP2003406003A JP2005165839A JP 2005165839 A JP2005165839 A JP 2005165839A JP 2003406003 A JP2003406003 A JP 2003406003A JP 2003406003 A JP2003406003 A JP 2003406003A JP 2005165839 A JP2005165839 A JP 2005165839A
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ic tag
writer
antenna
reader
rod
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Nobuhiko Ido
Toshihiro Kojima
Daisuke Saito
伸彦 井土
敏宏 小島
大介 斎藤
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Nippon Signal Co Ltd:The
日本信号株式会社
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<P>PROBLEM TO BE SOLVED: To provide a reader/writer that eliminates the interference between tags and influence due to electromagnetic wave disturbance by a metal of an article, on which an IC tag is attached by making the antenna of the reader/writer bar-shaped and opening the center of a loop antenna of the IC tag attached to the article. <P>SOLUTION: The optical disk control device 300 is constituted of a computer 150, that is located outside and controls the whole system by communicating data to the reader/writer 100, the reader/writer 100 that performs transmission of a conveyance power, based on a predetermined modulation method and communication of data with the IC tag 200 in a non-contact manner, the bar-shaped antenna 9 having generally the same diameter as the shaft hole of the optical disk, a plurality of optical disks 400 equipped with the IC tag 200, and a holder 57 that holds the bar-shaped antenna 9 and the plurality of optical disks 400. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は、非接触ICタグ用リーダライタに関し、さらに詳しくは、金属による電波障害を回避する技術手段に関するものである。 The present invention relates to a reader-writer for contactless IC tag, and more particularly, to a technical means to avoid interference by metals.

近年、ICカードと呼ばれる新しい情報記録媒体が、市場に広く出回っている。 In recent years, new information recording medium is referred to as the IC card is widely available on the market. ICカードは、クレジットカード、銀行カード、ポイントカード等のカード状あるいはシート状の形状を備え、カード内にIC(Integrated Circuit)が組み込まれているものを総称した名称である。 IC card, credit card, bank card, comprising a card-like or sheet-like shape such as a point card, is a generic name was the name of that IC (Integrated the Circuit) is incorporated into the card. 最近では、ICカードの応用品としてのICタグが、各種物品に付されて在庫管理等の効率化に貢献している。 In recent years, IC tag of as an application product of the IC card, be subjected to various articles have contributed to the efficiency of such as inventory management. このようなICカードやICタグは、リーダライタとの間でのデータの授受を電波にて行うため、定期券等のように1枚単位で処理されるICカードでは特に発生しない特有の問題を有している。 Such IC cards and IC tags, for exchanging data between the reader-writer at radio, the specific problems in particular does not occur in the IC card to be processed by a single unit as such commutation ticket It has.
即ち、商品がCDやDVD等の光ディスクの場合、記録媒体の情報記録領域にレーザ光を反射するための金属箔が形成されているため、その上にICタグを取り付けると金属箔によりリーダライタからの電波が反射と減衰によりICタグが動作するための必要磁界に達しなくなり、情報が正確に読み書きできなくなるといった問題がある。 That is, if goods are optical discs such as a CD or a DVD, since the metal foil for reflecting the laser beam to the information recording area of ​​the recording medium is formed, from the reader-writer of a metal foil when attaching the IC tag thereon the radio wave is not reached necessary magnetic field for the IC tag operates by the attenuation and reflection, information there is a problem can not be read or written accurately. 仮にICタグを光ディスクのケースの隅部等に取り付けて金属箔に重ならないようにすれば1枚単位では情報の読み書きは可能であるが、ケースと光ディスクが別体のため、必ずしもICタグから読み書きする情報が、光ディスク本体の記録情報と一致する保証がなくなる。 If Although one unit if the IC tag so as not to overlap the metal foil is attached to the corner portion or the like of the optical disc cases reading and writing of information can be, for case and optical disk is separate, not necessarily read from or written to the IC tag information is guaranteed to be consistent with the recorded information of the optical disc main body is eliminated.
また前述の金属箔により電波が反射されて情報が正確に読み書きできないといった問題を解決するために、ICタグと金属との間に磁性シートを設け、それにより磁路を形成してタグ情報を読み取る技術がある。 In order to solve the problem of information is reflected radio wave by the metal foil described above can not be read or written correctly, the magnetic sheet disposed between the IC tag and the metal, reading the tag information thereby to form a magnetic path there is a technique. しかし、ICタグを積載した場合、磁束は外側だけ通過して内側には磁束が通過しないため、内側のタグは交信できないといった問題が残る。 However, if loaded with IC tag, the magnetic flux since the inwardly through only the outer not pass magnetic flux, inner tag remains a problem not contact.
また従来技術として特開2003−59177公報には、コンピュータ記録媒体に記録した再生可能な音楽・画像などの情報に対して、不正使用防止、機密情報の漏洩あるいは個人認証による機密情報の保護管理を行う技術について開示されている。 Also Japanese Patent 2003-59177 publication as prior art, the information such as reproducible music and images recorded on a computer recording medium, preventing unauthorized use, the protection management of confidential information by leakage or personal authentication of the confidential information It discloses a technique for performing. それによると、RFIDおよびコンピュータ記録媒体にそれぞれ識別情報が記録されたRFID搭載コンピュータ記録媒体から情報を読み取り再生する際に、コンピュータに、前記記録媒体および前記RFIDより識別情報を読み取り、双方の識別情報から正しい利用者と認識されたとき、前記記録媒体に記録されている情報を読み取り再生を可能とする機能を実現させるためのプログラムについて開示されている。 According to the report, when the read reproducing information from RFID onboard computer recording medium identification information is recorded respectively in the RFID and computer recording medium, in a computer, the recording medium and the reading the more identity RFID, both identification information when it is recognized correct user from the discloses the program for realizing the function of enabling the reading reproduction information recorded on the recording medium.
また特開2002−245433公報には、光ディスクとICカードの融合を図るために、光ディスクの非記録領域に一体的にループアンテナとICチップを形成して光ディスクの管理を行う技術について開示されている。 The Japanese Patent 2002-245433 publication, in order to fusion of the optical disk and an IC card, there is disclosed a technique for integrally forming a loop antenna and an IC chip management of the optical disc in the non-recording area of ​​the optical disc .
また同一出願人より特開2002−24776公報として、リーダライタの磁束をICカードに効率よく集中させるために、ループコイル内に磁心を挿入したリーダライタについて開示されている。 As JP 2002-24776 publication of the same Applicant, in order to concentrate efficiently the magnetic flux of the reader writer to the IC card, discloses a writer inserting the core into the loop coil.
特開2003−59177公報 JP 2003-59177 Publication 特開2002−245433公報 JP 2002-245433 Laid 特開2002−24776公報 JP 2002-24776 Publication

前述のように光ディスク或いは金属で構成される商品にICタグを取り付けた場合、リーダライタの電波を金属が反射して正常に交信ができないといった問題がある。 If fitted with an IC tag in the product consists of an optical disc or a metal as described above, the radio wave of the reader-writer metal there is a problem can not be successfully communicate reflected. この問題を解決するために、光ディスクの金属箔が存在しない非情報記録領域にICタグを取り付けたり、非磁性シートをICタグに取り付けて磁路を形成する等の方法があるが、いずれの場合も複数の物品を重ねた場合、ICタグ同士の干渉や金属の影響によりリーダライタとの交信が正常に行われないといった問題が残る。 To solve this problem, or attaching an IC tag in the non-information recording region where the metal foil of the optical disk is not present, but the non-magnetic sheet and a method such as to form a magnetic path is attached to the IC tag, in either case even when a plurality of stacked articles, problem communication with the reader-writer is not successful remains by interference or the influence of the metal of the IC tag together.
また特許文献1に開示されている従来技術は、CD等の記録媒体面以外の場所にRFIDチップを埋め込んだ構成であり、複数のCDを重ねた場合、RFIDチップの位置関係が重複する可能性があるため、ICタグ同士の干渉により必ずしも全てのRFIDチップからの情報を正確に読み取れる保証はない。 The conventional technique disclosed in Patent Document 1 has a structure with an embedded RFID chip in a location other than the recording medium surface such as a CD, when a plurality of stacked CD, possibly positional relationship of the RFID chip overlap because there is not exactly read guarantee information from not all of the RFID chip by the interference of the IC tag together.
また特許文献2に開示されている従来技術は、光ディスクにICタグを一体的に構成し、光ディスクの情報は従来通り光ディスク装置により読み書きし、ICタグの情報は別のリーダライタにより読み書きするものであり、特許文献1と同様の問題を含んでいる。 The conventional technique disclosed in Patent Document 2, integrally constitute the IC tag on the optical disc, information of the optical disk is read and written by the conventional as optical disk device, information of the IC tag intended to read and write by another interrogator There contains the same problem as Patent Document 1.
また特許文献3に開示されている従来技術は、あくまでも磁束をICタグに効率良く通過させる技術であり、ループアンテナの磁心にICタグのループアンテナを挿通して読み書きするものではないため、複数のICタグの記録情報を一括して読み書きすることはできない。 The conventional technique disclosed in Patent Document 3, merely the flux of a technique to pass efficiently to the IC tag, because it is not intended to read and write by inserting the loop antenna of the IC tag core of the loop antenna, a plurality of it is not possible to read and write at once recorded information of the IC tag.
本発明は、かかる課題に鑑み、リーダライタのアンテナを棒状にし、且つ商品に取り付けられたICタグのループアンテナの中心部を開口することにより、ICタグが取り付けられた商品の、タグ同士の干渉や金属による電磁波障害の影響を無くしたリーダライタを提供することを目的とする。 In view of the above problems, the antenna of the reader-writer in the form of bars, and by opening the center of the loop antenna of the IC tag attached to the product, the product IC tag is attached, the interference of the tag between and to provide a reader writer eliminate the influence of electromagnetic interference caused by or metal.

本発明はかかる課題を解決するために、請求項1は、所定の変調方式に基づく搬送電力の送信とデータの授受をICタグとの間で非接触にて行うリーダライタであって、前記リーダライタは棒状の磁心に導線を所定回数巻きつけた棒状アンテナを備え、前記ICタグのループアンテナと前記棒状アンテナの磁心が互いに挿通し合うことにより、前記ICタグに起電力を誘起して、前記ICタグとの間で所定の変調方式に基づく搬送電力の送信とデータの授受を行うことを特徴とする。 For the present invention to solve the above problems, claim 1 is a writer for performing in a non-contact between the transmitting and receiving IC tag transmission and data conveying electric power based on a predetermined modulation scheme, the reader writer includes a rod-shaped antenna which attached the predetermined number of times wound a conductive wire rod-shaped magnetic core, by the loop antenna and the magnetic core of the rod-shaped antenna of the IC tag is mutually inserted together, by inducing an electromotive force in the IC tag, the wherein the transmit and receive transmission and data conveying electric power based on a predetermined modulation scheme with the IC tag.
磁心に巻きつけたコイルに信号(交流信号)を流すと、磁心に磁束の変化が生じる。 When flow signal (alternating current signal) to the wound coil to the magnetic core, the change in magnetic flux occurs in the magnetic core. 一方、磁心にループアンテナを挿通すると磁束変化による誘導作用によって、ループアンテナに起電力が誘起される。 On the other hand, the inductive action when inserting the loop antenna core by the magnetic flux change, electromotive force is induced in the loop antenna. 本発明はこの原理を利用してリーダライタのアンテナを棒状の磁心とし、そこにコイルを所定ピッチにて巻きつけ、その磁心にICタグのループアンテナを挿通するものである。 The present invention is an antenna of the reader writer as rod-shaped magnetic core by utilizing this principle, wound coil at a predetermined pitch there is for inserting the loop antenna of the IC tag to the core.
かかる発明によれば、ICタグのループアンテナと棒状アンテナの磁心が互いに挿通し合うので、金属による電波障害の影響を無くすことができる。 According to the present invention, since the loop antenna and the magnetic core of the rod-shaped antenna of the IC tag is mutually inserted together, it is possible to eliminate the effect of interference due to the metal.
請求項2は、前記棒状アンテナの磁心材料は、フェライト、純鉄、珪素鋼、鉄・ニッケル合金、及びダストコアであることを特徴とする。 Claim 2, the magnetic core material of the rod-shaped antenna is ferrite, and wherein the pure iron, silicon steel, iron-nickel alloy, and a dust core.
コイルに電流を流すと、その周囲には磁界が生ずるが、コイルの中に磁心を入れると磁心は磁石となり更に磁界が強まる。 When a current is applied to the coil, although the magnetic field is generated in the periphery thereof, the core and put the core in the coil further magnetic field is strengthened becomes magnet. 磁心には比透磁率が大きくヒステリシス現象の小さいものが好ましい。 Small relative permeability of greater hysteresis phenomenon in the magnetic core is preferred. このような条件を満足する磁心として、フェライト、純鉄、珪素鋼、鉄・ニッケル合金、及びダストコアがある。 As the magnetic core that satisfies such conditions, ferrite, pure iron, silicon steel, iron-nickel alloys, and there is a dust core.
かかる発明によれば、棒状アンテナの磁心材料がフェライト、純鉄、珪素鋼、鉄・ニッケル合金、及びダストコアであるので、磁心の比透磁率を大きく、且つヒステリシス現象を小さくすることができる。 According to the invention, the magnetic core material of the rod-shaped antenna is ferrite, pure iron, silicon steel, iron-nickel alloys, and since it is a dust core, it is possible to increase the relative permeability of the magnetic core, and to reduce the hysteresis phenomenon.

請求項3は、前記棒状アンテナは、前記棒状磁心の長手方向の全長又は一部に亘って前記導線を所定回数巻きつけたことを特徴とする。 Claim 3, wherein the rod-shaped antenna is characterized in that the longitudinal length or the wires over a portion of the rod-shaped magnetic core attached wound a predetermined number of times.
棒状アンテナの磁束は、磁心に巻きつけられたコイルの巻き数(N)と電流(A)の積(AT)に比例する。 Flux of the rod-shaped antenna is proportional to the product (AT) of the number of turns of the coil wound around the magnetic core (N) and current (A). 従って、送信パワーを増やさないで所定の磁束を得るには、磁心の長手方向の全長又は一部に亘ってコイルを巻きつけ巻き数(N)を増やす必要がある。 Therefore, in order to obtain a predetermined magnetic flux without increasing the transmission power, it is necessary to increase the number of turns wound coil in the longitudinal direction of the full length or a part of the core (N). また、ループアンテナとの相互誘導作用を強めるには棒状アンテナのコイルとループアンテナが近いほど強くなる。 Furthermore, the stronger the closer the coil and the loop antenna of the rod-shaped antenna to enhance the mutual induction action of a loop antenna. そのためにも磁心の長手方向の全長又は一部に亘って導線を巻きつけることは、相互誘導作用を強めるには有効である。 Its wrapping the wire in the longitudinal direction of the full length or a part of the magnetic core in order is effective to enhance the mutual induction action.
かかる発明によれば、棒状アンテナは、磁心の長手方向の全長又は一部に亘って導線を所定回数巻きつけた構成とするので、棒状アンテナとループアンテナとの相互誘導作用を強め、且つ送信パワーを必要最小限にすることができる。 According to the invention, the rod-shaped antenna, since a structure in which a conductive wire in the longitudinal direction of the full length or a part of the core attached predetermined number of times wound, strengthen mutual induction action between the rod-shaped antenna and the loop antenna, and transmit power a can be reduced to the minimum necessary.
請求項4は、請求項1記載のリーダライタのリードライト対象物としての前記ICタグは、誘電体基板と、該誘電体基板の所定の位置に設けた開口部の周縁に導線を所定回数周回して形成したループアンテナと、該ループアンテナを介して所定の変調方式に基づく搬送電力の送信とデータの授受を制御する集積回路とを備えたことを特徴とする。 Claim 4, wherein the IC tag as read-write object interrogator of claim 1, wherein the dielectric substrate and the peripheral edge a predetermined number of times around the conductive wire of the opening provided at a predetermined position of the dielectric substrate and the loop antenna which is to form, characterized by comprising an integrated circuit that controls the exchange of the transmission data of the transport power based on a predetermined modulation scheme through the loop antenna.
本発明のもう一つの特徴はICタグの構成である。 Another feature of the present invention is the configuration of the IC tag. 即ち、ICタグを誘電体基板で構成し、その基板の所定の位置に中心部を開口したループアンテナを形成して制御用の集積回路(IC)を搭載する。 That constitutes the IC tag in the dielectric substrate, mounting the integrated circuit (IC) for controlling to form a loop antenna having an open central portion at a predetermined position of the substrate. この構成により、ループアンテナとリーダライタの棒状アンテナとが確実に相互誘導作用により結合することができる。 With this configuration, the rod-shaped antenna of the loop antenna and the reader writer can be coupled by reliably mutual induction.
かかる発明によれば、ICタグは、誘電体基板の所定の位置に設けた開口部の周回に導線を所定回数周回して形成したループアンテナと、このループアンテナを介して所定の変調方式に基づく搬送電力の送信とデータの授受を制御する集積回路とを備えたので、ループアンテナとリーダライタの棒状アンテナとが確実に相互誘導作用により結合して、リーダライタとICタグの交信を確実なものにすることができる。 According to the invention, IC tag, and the loop antenna formed by a conductive wire circulation of opening provided at a predetermined position of the dielectric substrate by a predetermined number of times orbiting, based on a predetermined modulation scheme through the loop antenna since with an integrated circuit that controls the exchange of transmission and data conveying power, and the rod-shaped antenna of the loop antenna and the reader-writer is attached by reliably mutual induction, what ensures the communication with the reader writer and the IC tag it can be.

請求項5は、請求項4記載のICタグの前記集積回路のメモリに当該ICタグの取付対象物に関する必要情報を記憶し、当該ICタグの開口部と前記取付対象物の開口部との位置関係が一致するように構成することにより、前記取付対象物の開口部を請求項1記載のリーダライタの前記棒状アンテナに挿入、若しくは前記棒状アンテナを前記取付対象物の開口部に挿入して前記取付対象物の必要情報の読み書きを行うことを特徴とする。 Claim 5 stores necessary information about the attachment object of the IC tag in the memory of the integrated circuit of the IC tag according to claim 4, wherein the position of the opening portion of the attaching object and the opening of the IC tag by configuring so that the relationship is matched, the insertion opening of the attachment object on the rod-shaped antenna of the reader-writer according to claim 1, or by inserting the rod-shaped antenna into the opening of the attachment object the and performing reading and writing of necessary information attaching object.
ICタグのループアンテナの中心部には、棒状アンテナを(に)挿入するための開口部(穴)が形成されている。 At the center of the loop antenna of the IC tag, the rod-shaped antenna (the) opening for insertion (hole) is formed. 従って、ICタグを物品に取り付ける場合は、その物品の必要情報をメモリに記憶し、且つその開口部と物品の開口部を一致するように構成する必要がある。 Therefore, when mounting the IC tag to the article, and stores necessary information of the article in the memory, and it is necessary to be configured to match the opening of the opening and the article. そうすることにより、物品の開口部を(に)棒状アンテナに(を)挿入すると、物品の必要情報を取得することができる。 By doing so, (a) a rod antenna (wo) the opening of the article when inserted, it can obtain necessary information of the article.
かかる発明によれば、ICタグの集積回路のメモリに当該ICタグを取り付ける物品の必要情報を記憶し、当該ICタグの開口部と物品の開口部との位置関係が一致するように構成するので、物品の開口部を(に)棒状アンテナに(を)挿入すると、物品の必要情報を取得することができる。 According to the present invention, stores necessary information of the article to attach the IC tag in the memory of the integrated circuit of the IC tag, so configured as positional relationship between the opening of the opening and the article of the IC tags match , (a) a rod antenna (wo) the opening of the article when inserted, can obtain necessary information of the article.
請求項6は、請求項2又は3に記載の棒状アンテナをディスク回転軸内に形成したディスク機構部と、請求項4に記載のICタグを備えた光ディスクと、請求項1乃至3の何れか一項に記載のリーダライタとを備え、前記光ディスク機構部に前記光ディスクを装填することにより、該光ディスクのICタグに記憶された情報を読み書きすると共に、該光ディスクの記録情報を読み書きすることを特徴とする。 Claim 6, a disk mechanism for the rod-shaped antenna according to claim 2 or 3 formed on the disk rotation inside shaft, and an optical disc with an IC tag according to claim 4, any one of claims 1 to 3 and a reader-writer according to paragraph (1) by loading the optical disk into the optical disk mechanism, characterized in that as well as read and write information stored in the IC tag of the optical disc, read and write information recorded on the optical disc to.
光ディスク装置の機構部にはディスクを回転するための回転軸がある。 The mechanism of the optical disk apparatus is the rotating shaft for rotating the disk. 本発明はその回転軸に棒状アンテナを形成し、光ディスクの中心部分にICタグを形成することにより、ICタグの情報を読み書きすると共に、光ディスクの記録情報を読み書きするものである。 The present invention is a rod-shaped antenna is formed on the rotary shaft, by forming the IC tag in the center of the optical disc, as well as read and write information of the IC tag, it is to read and write information recorded on the optical disc. これにより、光ディスクのセキュリティを向上させ、不正なコピー等を防ぐことができる。 This improves the security of the optical disk, it is possible to prevent unauthorized copying or the like.
かかる発明によれば、光ディスクの回転軸に棒状アンテナを形成し、光ディスクの中心部分にICタグを形成するので、光ディスクのセキュリティを向上させ、不正なコピー等を防ぐことができる。 According to the invention, the rod-shaped antenna is formed on the axis of rotation of the optical disk, so to form an IC tag in the center of the optical disc, to improve the security of the optical disk, it is possible to prevent unauthorized copying or the like.

請求項7は、前記ICタグは、前記光ディスクに貼付若しくは一体に形成されていることを特徴とする。 Claim 7, wherein the IC tag is characterized in that it is formed affixed or integral to the optical disc.
既に存在する光ディスクの在庫管理等を行う場合は、誘電体基板上に形成されたICタグを後から光ディスクに貼付する必要がある。 If you already performing inventory control of the optical disk is present, it is necessary to affix later IC tag formed on a dielectric substrate in the optical disk. この場合、任意に管理対象とする光ディスクを選択することができるが、貼付する手間がかかり、ICタグを剥がされるといった危険性がある。 In this case, it is possible to select the optical disk to be optionally managed, cumbersome to affix, there is a danger such peeled the IC tag. それに対して、光ディスクの製造段階で一体的にICタグを埋め込んでおけば、そのような危険性は回避できる。 In contrast, if embed integrally IC tag during the manufacturing process of the optical disc, such danger can be avoided.
かかる発明によれば、ICタグは、光ディスクに貼付若しくは一体に形成されているので、既存の光ディスクから新規に製造するディスクまで広い範囲で対応することができる。 According to the invention, IC tag, because it is formed affixed or integral to the optical disc, it is possible to cope with a wide range of existing optical disk until the disk to produce a new one.

請求項1の発明によれば、ICタグのループアンテナと棒状アンテナの磁心が互いに挿通し合うので、金属による電波障害の影響を無くすことができる。 According to the present invention, since the loop antenna and the magnetic core of the rod-shaped antenna of the IC tag is mutually inserted together, it is possible to eliminate the effect of interference due to the metal.
また請求項2では、棒状アンテナの磁心材料がフェライト、純鉄、珪素鋼、鉄・ニッケル合金、及びダストコアであるので、磁心の比透磁率を大きく、且つヒステリシス現象を小さくすることができる。 Further, in claim 2, ferrite core material of the rod-shaped antenna, pure iron, silicon steel, iron-nickel alloys, and since it is a dust core, it is possible to increase the relative permeability of the magnetic core, and to reduce the hysteresis phenomenon.
また請求項3では、棒状アンテナは、磁心の長手方向の全体又は一部に亘って導線を所定回数巻きつけた構成とするので、棒状アンテナとループアンテナとの相互誘導作用を強め、且つ送信パワーを必要最小限にすることができる。 Further in claim 3, the rod-shaped antenna, since a structure in which a conductive wire over the whole or part of the length of the magnetic core attached predetermined number of times wound, strengthen mutual induction action between the rod-shaped antenna and the loop antenna, and transmit power a can be reduced to the minimum necessary.
また請求項4では、ICタグは、誘電体基板の所定の位置に設けた開口部の周回に導線を所定回数周回して形成したループアンテナと、このループアンテナを介して所定の変調方式に基づく搬送電力の送信とデータの授受を制御する集積回路とを備えたので、ループアンテナとリーダライタの棒状アンテナとが確実に相互誘導作用により結合して、リーダライタとICタグの交信を確実なものにすることができる。 Further, in claim 4, IC tag, and the loop antenna formed by a conductive wire circulation of opening provided at a predetermined position of the dielectric substrate by a predetermined number of times orbiting, based on a predetermined modulation scheme through the loop antenna since with an integrated circuit that controls the exchange of transmission and data conveying power, and the rod-shaped antenna of the loop antenna and the reader-writer is attached by reliably mutual induction, what ensures the communication with the reader writer and the IC tag it can be.
また請求項5では、ICタグの集積回路のメモリに当該ICタグを取り付ける物品の必要情報を記憶し、当該ICタグの開口部と物品の開口部との位置関係が一致するように構成するので、物品の開口部を(に)棒状アンテナに(を)挿入すると、物品の必要情報を取得することができる。 Further, in claim 5, stores necessary information of the article to attach the IC tag in the memory of the integrated circuit of the IC tag, so configured as positional relationship between the opening of the opening and the article of the IC tags match , (a) a rod antenna (wo) the opening of the article when inserted, can obtain necessary information of the article.
また請求項6では、光ディスクの回転軸に棒状アンテナを形成し、光ディスクの中心部分にICタグを形成するので、光ディスクのセキュリティを向上させ、不正なコピー等を防ぐことができる。 Further, in claim 6, the rod-shaped antenna is formed on the axis of rotation of the optical disk, so to form an IC tag in the center of the optical disc, to improve the security of the optical disk, it is possible to prevent unauthorized copying or the like.
また請求項7では、ICタグは、光ディスクに貼付若しくは一体に形成されているので、既存の光ディスクから新規に製造するディスクまで広い範囲で対応することができる。 Further, in claim 7, IC tag, because it is formed affixed or integral to the optical disc, it is possible to cope with a wide range of existing optical disk until the disk to produce a new one.

以下、本発明を図に示した実施形態を用いて詳細に説明する。 It will be described in detail with reference to embodiments shown the present invention in FIG. 但し、この実施形態に記載される構成要素、種類、組み合わせ、形状、その相対配置などは特定的な記載がない限り、この発明の範囲をそれのみに限定する主旨ではなく単なる説明例に過ぎない。 However, components described in this embodiment, the kind, combination, shape, unless there is specific relative positions and so forth are merely illustrative examples and not intended to limit the scope of the invention thereto .
図1は、本発明のリーダライタの構成を示すブロック図である。 Figure 1 is a block diagram showing the configuration of the reader-writer of the present invention. このリーダライタ100は、外部にあってリーダライタ100に対してデータの授受を行ってシステム全体を制御するコンピュータ(以下、PCと記す)150と、外部のPC150とのデータの通信プロトコルを司る送受信装置1と、リーダライタ100全体の動作を制御する制御装置(CPU)2と、制御装置2を動作させる手順を記録したプログラムを格納するメモリ装置3と、制御装置2からのデータを搬送波に乗せて変調する変調器4と、操作コマンドを入力する入力装置5と、制御装置2からの情報を表示する表示装置6と、制御装置2からの交流信号である電力供給用信号と変調器4からの書き込みコマンドを電力増幅する電力増幅器7と、棒状アンテナ9から受信した信号から2値化データに変換する検波復調器8と、図示 The reader writer 100, transceiver which controls a computer that controls the entire system by performing the transfer of data to the reader-writer 100 or external (hereinafter, referred to as PC) 150, a communication protocol of data with external PC150 a device 1, a control unit (CPU) 2 which controls the reader writer 100 overall operation, a memory device 3 for storing a program recording the procedure for operating the control unit 2, placing the data from the control unit 2 to the carrier a modulator 4 for modulating Te, an input device 5 for inputting an operation command, a display device 6 for displaying information from the control unit 2, the power supply signal is an AC signal from the control unit 2 from the modulator 4 a power amplifier 7 which amplifies the power write command, a detection demodulator 8 for converting a signal received from the rod-shaped antenna 9 into binary data, shown ないICタグとの電力用搬送波とデータの授受をする棒状アンテナ9(詳細は後述する)とを備えて構成されている。 Shaped antenna 9 for transmission and reception of electric power carrier wave and data not IC tag (details will be described later) is constituted by a.
図2は、本発明のICタグの構成を示すブロック図である。 Figure 2 is a block diagram showing the configuration of an IC tag of the present invention. このICタグ200は、前記リーダライタ100からの電力用搬送波によりデータの授受をするループアンテナ20と、書き込みコマンド読み出しコマンドを送受する送受信装置21と、ループアンテナ20からの電力用搬送波を受け、それを整流して直流電力に変換する電力生成回路22と、制御用プログラムとデータの一時記憶を司るメモリ装置23と、制御回路26からの搬送波に送信コマンドを乗せて変調する変調器24と、送受信装置21からの搬送波データから2値化データに変換する復調器25と、ICタグ200の全体の動作を制御する制御回路26から構成されている。 The IC tag 200 receives the loop antenna 20 to exchange data by a power carrier wave from the reader writer 100, a transceiver 21 for transmitting and receiving a write command read command, a power carrier wave from the loop antenna 20, it rectification to the power generation circuit 22 for converting the DC power, a memory device 23 which controls the temporary storage of the control program and data, a modulator 24 for modulating put the transmission command to the carrier wave from the control circuit 26, transceiver a demodulator 25 for converting the carrier wave data from the device 21 into binary data, and a control circuit 26 which controls the overall operation of the IC tag 200. 尚、本実施形態の場合は、ループアンテナ20以外の回路は1つのIC201(以下、制御ICと記す)として集積化されている。 In the case of this embodiment, the circuits other than the loop antenna 20 one IC 201 (hereinafter, referred to as the control IC) are integrated as.

次に、図1と図2を参照してそれぞれの動作について説明する。 Next, the respective operations will be described with reference to FIGS. リーダライタ100は、図示しない電源が投入されると、制御装置2のイニシャル動作後、メモリ装置3に記憶されたプログラムに従い動作を開始する。 Writer 100, when the power supply (not shown) is turned on, after the initial operation of the control device 2 starts the operation according to the program stored in the memory device 3. まず、制御装置2は、ICタグ200に供給する電力供給用信号と、ポーリング信号を電力増幅器7から送信する。 First, the control unit 2, a power supply signal supplied to the IC tag 200, and transmits a polling signal from the power amplifier 7. その信号は、棒状アンテナ9から電磁波として外部に放射される。 The signal is emitted to the outside as an electromagnetic wave from the rod-shaped antenna 9. 次に、ICタグ200のループアンテナ20が電力供給用信号を受信し、電力生成回路22によりその搬送波を整流して直流電力に変換して、タグ内の全ての回路に供給する。 Then, receiving the loop antenna 20 is a power supply signal of the IC tag 200, and converted into DC power by rectifying the carrier wave by the power generating circuit 22 is supplied to all circuits in the tag. 電力を供給されて制御回路26が駆動すると、メモリ装置23に格納されたプログラムに従って制御を開始する。 When the control circuit 26 is supplied with electric power to drive, it starts controlling in accordance with a program stored in the memory device 23.
次に、ICタグ200の制御回路26は、まず送受信装置21からコマンドを復調器25で復調して2値化信号に変換し、そのコマンドを解析する。 Next, the control circuit 26 of the IC tag 200 first commands from the transceiver unit 21 is demodulated by the demodulator 25 into a binary signal, and analyzes the command. その結果自分が呼び出されていることを認識すると、レスポンスを変調器24により変調して送受信装置21を介してループアンテナ20から送信する。 It recognizes that the result has he called, via the transceiver 21 and modulated by a modulator 24 the response sent from the loop antenna 20.
このレスポンスをリーダライタ100が棒状アンテナ9で受信して、検波復調器8で2値化コードに変換し、制御装置2により解析してICタグ200が規格に合致したタグであると認識する。 The response is received the reader writer 100 is in the rod-shaped antenna 9 recognizes that converts into a binary code by the detection demodulator 8, IC tags 200 and analyzed by the control unit 2 is a tag that matches the standard. それにより、以後リーダライタ100とICタグ200の間で通信が行われる。 Thus, the subsequent communication between the reader writer 100 and the IC tag 200 is performed.
図3は、本発明のICタグ200の一例を示す外観図である。 Figure 3 is an external view of an example of an IC tag 200 of the present invention. 同一構成要素には同一参照番号を付して説明する。 The same components will be denoted by the same reference numbers. このICタグ200は、略中心に開口部31を有する誘電体基板32と、この誘電体基板32上にパターン化して形成されたループアンテナ20と、ループアンテナ20を介してデータの授受を行う制御IC201とを備えて構成される。 The IC tag 200 is controlled to perform a dielectric substrate 32 having an opening 31 substantially centrally, a loop antenna 20 formed by patterning on the dielectric substrate 32, the data exchange via the loop antenna 20 configured with the IC201. 尚、誘電体基板32の材質はガラスエポキシ材等の堅い材質でもよいし、FPC等のフレキシブルな材質のどちらでも構わない。 The material of the dielectric substrate 32 may be a rigid material having such a glass epoxy material, may either flexible material such as an FPC. また、開口部31とループアンテナ20の形状は図では円形であるが、形状は円形である必要はない。 The shape of the opening 31 and the loop antenna 20 is in the figure is circular, the shape need not be circular. そしてその大きさは、相手側の棒状アンテナ(又はL字やU字型アンテナ等)の大きさにより決定される。 And the size thereof is determined by the size of the mating of the rod-shaped antenna (or L-shaped or U-shaped antenna, etc.). このICタグ200の最も大きな特徴は、誘電体基板32の略中心に開口部31を設け、その周回にループアンテナ20を形成した点である。 The most significant feature of this IC tag 200, an opening 31 is provided substantially at the center of the dielectric substrate 32, in that the formation of the loop antenna 20 on its orbit.
図4は、本発明のICタグ200を備えた光ディスクの外観図である。 Figure 4 is an external view of an optical disc having an IC tag 200 of the present invention. この光ディスク400は、光ディスクのベース41に形成された情報記録領域42以外の内周部43に、ICタグ200を配置したものである。 The optical disc 400, the inner peripheral portion 43 other than the information recording area 42 formed in the base 41 of the optical disk is obtained by placing the IC tag 200. そして光ディスク400の開口部40と、ICタグ200の開口部31の穴位置を一致させたものである。 And the opening 40 of the optical disk 400, in which to match the hole position of the opening 31 of the IC tag 200. 尚、ICタグ200は後から光ディスク400に取り付けても良いし、光ディスク400の製造段階で一体的に構成しても良い。 Incidentally, IC tag 200 may be attached to the optical disc 400 later, may be integrally formed during the manufacturing process of the optical disc 400.

図5は、本発明の棒状アンテナの一例を示す外観構成図である。 Figure 5 is an external configuration diagram showing an example of a rod-shaped antenna of the present invention. この棒状アンテナ9は、磁心45に導線46をコイル状に巻きつけ、その導線46の始端47と終端48にリーダライタ100と接続するリード線49を備えて構成される。 The rod-shaped antenna 9, wound a conducting wire 46 to the core 45 in coil shape, and provided with a lead wire 49 to be connected to the reader-writer 100 to start 47 and the end 48 of the conductor 46.
尚、磁心45の材料としては、比透磁率が大きくヒステリシス現象の小さいものが好ましい。 The material of the magnetic core 45, as relative permeability smaller large hysteresis is preferred. このような条件を満足する磁心として、フェライト、純鉄、珪素鋼、鉄・ニッケル合金、及びダストコアがある。 As the magnetic core that satisfies such conditions, ferrite, pure iron, silicon steel, iron-nickel alloys, and there is a dust core. また、導線46に図では帯状の導線を使用しているが、線状の導線でも構わない。 Further, in the drawing at line 46, but using a strip conductor, may be a linear conductor.
図6は、本発明の棒状アンテナによるデータ交信方法を説明する図である。 Figure 6 is a diagram illustrating a data communication method according to the rod-shaped antenna of the present invention. 図6(a)はICタグの近傍に金属が存在する場合を仮定した様子を表す図であり、図6(b)はそのときの原理図である。 6 (a) is a diagram showing the state of the assumption that the metal is present in the vicinity of the IC tag, Fig. 6 (b) illustrates the principle of a time. 例えば、棒状アンテナ9の磁心45に導線46を巻きつけ、その始端と終端に交流信号50を供給した場合を考える。 For example, wound wire 46 in the core 45 of the rod-shaped antenna 9, consider the case of supplying an alternating current signal 50 to the start and end. 例えば、ある瞬間に矢印51の方向に電流が流れたとすると、磁心45に磁束52が発生する。 For example, when the current in the direction of arrow 51 at a certain instant flows, magnetic flux 52 is generated in the magnetic core 45. そのとき磁心45に本発明の光ディスク400a、400bが挿入されており、且つ光ディスク400bの近傍に金属板53が存在したとする。 Then the optical disk 400a of the present invention in the magnetic core 45, 400b are inserted, and a metal plate 53 in the vicinity of the optical disc 400b is present. (この金属板53は、例えば光ディスクを分類するための境界として使用する)また光ディスク400a、400bにはICタグ200a、200bが取り付けられている。 (The metal plate 53, for example, an optical disk used as a boundary for classifying) The optical disc 400a, the 400b are IC tags 200a, 200b are mounted. この図から明らかなように、ICタグ200a、200bには金属板53の存在の如何にかかわらず磁束52が通過することになる(即ち、ICタグ200a、200bのループアンテナに磁束52が通過する)。 As apparent from FIG, IC tag 200a, so that the magnetic flux 52 passes regardless of the presence of the metal plate 53 to 200b (i.e., IC tag 200a, the magnetic flux 52 in the loop antenna 200b passes ). これにより、ループアンテナ20は磁束52の磁束変化により起電力が誘起される。 Accordingly, the loop antenna 20 is an electromotive force is induced by the magnetic flux change in the magnetic flux 52. このことは言い換えると、光ディスク400bの近傍に金属板53が存在してもその影響を受けないことを表している。 This is in other words, it represents that no affected even metal plate 53 is present in the vicinity of the optical disk 400b.
図6(b)は上記の説明を更に詳しく説明するための原理図である。 6 (b) is a principle diagram for explaining the above described in more detail. 同じ構成要素には同じ参照番号を付して説明する。 The same components will be denoted by the same reference numbers. ここで、導線46の巻き数をT、交流信号50の電流をA、磁路の抵抗をRとすると、磁心45の磁束ψはψ=AT/Rとなる。 Here, the number of turns of wire 46 T, current A of the AC signal 50, and the resistance of the magnetic path is R, the magnetic flux [psi magnetic core 45 becomes ψ = AT / R. そして金属板53は巻き数が1回のコイルと見なせる。 The metal plate 53 has the number of turns can be regarded as a single coil. 従って、磁束52が発生すればその影響を殆ど受けることなくICタグ200bのループアンテナ20に起電力が誘起される。 Therefore, electromotive force is induced in the loop antenna 20 of the IC tag 200b without flux 52 affected little if generated. 即ち、磁心45内であれば何枚の光ディスクが存在してもICタグとリーダライタとの交信が可能である。 That is, even if there is nothing optical disks if within the magnetic core 45 is capable of communicating with the IC tag and the reader-writer.
また、前述より棒状アンテナの磁束ψは、磁心45に巻きつけられた導線46の巻き数(N)と導線46に流す電流(A)の積(AT)に比例する。 Further, the magnetic flux ψ of the rod-shaped antenna from the above, proportional to the product of current (A) flowing the number of turns of wire 46 wound around the magnetic core 45 and (N) on lead 46 (AT). 従って、送信パワーを増やさないで所定の磁束を得るには、磁心の長手方向の全体に亘って導線46を巻きつけ巻き数(N)を増やす必要がある。 Therefore, in order to obtain a predetermined magnetic flux without increasing the transmission power, it is necessary to increase the number of turns wound wire 46 over the entire longitudinal direction of the core (N). また、ループアンテナとの相互誘導作用を強めるには棒状アンテナ9の導線46とループアンテナが近いほど強くなる。 Furthermore, the stronger the closer conductor 46 and the loop antenna of the rod-shaped antenna 9 to strengthen the mutual induction action of a loop antenna. そのためにも磁心の長手方向の全体に亘って導線を巻きつけることは、相互誘導作用を強めるには有効である。 Its wrapping the wire over the entire longitudinal direction of the magnetic core in order is effective to enhance the mutual induction action.

図7は、本発明の第1の実施形態に係る棒状アンテナを備えたリーダライタによる光ディスク管理装置の構成図である。 Figure 7 is a configuration diagram of an optical disc management device by the reader writer having a rod-shaped antenna according to the first embodiment of the present invention. 同じ構成要素には同じ参照番号を付して説明する。 The same components will be denoted by the same reference numbers. CDやDVD等の光ディスクを管理する場合、従来ではラベルの表記で判断するか、PCのドライブ装置に挿入して内容を確認しなければならなかった。 If you want to manage the optical disc such as a CD or a DVD, in the prior art it is determined whether the notation of the label, had to be sure the content is inserted into the drive on your PC. また、内容の確認や仕分けが終了したか否かを判断するのが困難であった。 In addition, the contents of the confirmation and sorting was difficult to determine whether or not it is completed. 本実施形態では、このような管理上の課題を解決するために、光ディスク管理装置300は、外部にありリーダライタ100に対してデータの授受を行ってシステム全体を制御するPC150と、所定の変調方式に基づく搬送電力の送信とデータの授受をICタグ200との間で非接触にて行うリーダライタ100と、光ディスクの軸穴と略同じ径を有する棒状アンテナ9と、本発明のICタグ200を備えた複数の光ディスク400と、棒状アンテナ9と複数の光ディスク400を保持する保持台57とを備えて構成される。 In the present embodiment, in order to solve the problems on such management, optical disc management device 300, and PC150 for controlling the entire system by performing the transfer of data to the reader writer 100 is outside a predetermined modulation a reader writer 100 for exchanging transmission and data conveying electric power based on the system in a non-contact between the IC tag 200, the rod-shaped antenna 9 having substantially the same diameter as the shaft hole of the optical disk, an IC tag 200 of the present invention configured with a plurality of optical disks 400 with, a holder 57 for holding the rod-like antenna 9 and a plurality of optical disks 400. また、PC150とリーダライタ100はケーブル55により接続され、リーダライタ100と棒状アンテナ9はケーブル56により接続されている。 Also, PC 150 and the reader-writer 100 is connected by a cable 55, the reader writer 100 and the rod-shaped antenna 9 is connected by a cable 56. 尚、この図ではリーダライタ100と棒状アンテナ9を別体の構成として説明しているが、両者が一体の構成でも構わない。 Although this figure describes a reader writer 100 and the rod antenna 9 as a separate, both may be integrated in the construction.
次に光ディスク管理装置300の動作について図7を参照して説明する。 It will now be described with reference to FIG. 7, the operation of the optical disc management device 300. まず、管理すべき複数の光ディスク400を棒状アンテナ9に挿入する。 First, to insert a plurality of optical disks 400 to be managed in the rod-shaped antenna 9. このとき光ディスク400の表裏の向きはどちらでも構わない。 At this time, the front and back of the orientation of the optical disk 400 does not matter either. また、光ディスク400の枚数は積載したときの高さが棒状アンテナ9の長さ以内であれば何枚でも構わない。 Further, the number of the optical disc 400 is high when the load is not matter any number of images if it is within the length of the rod-shaped antenna 9. そしてPC150から読み取りコマンドを送信する指令がリーダライタ100に出されると、リーダライタ100は図6で説明したように棒状アンテナ9に信号を送信する。 When the command to send a read command from the PC150 is made to the reader-writer 100, the reader writer 100 transmits a signal to the rod-shaped antenna 9 as described in FIG. それにより棒状アンテナ9の磁心45から磁束が発生し、光ディスク400に取り付けられたICタグ200と交信を開始し、ICタグ200のメモリに記憶された情報が読み取られる。 Whereby magnetic flux is generated from the magnetic core 45 of the rod-shaped antenna 9 starts communication with the IC tag 200 attached to the optical disc 400, information stored in the memory of the IC tag 200 is read. PC150は各光ディスク400の情報をリーダライタ100を介して受信してメモリに記憶する。 PC150 is stored in the memory by receiving the information of each optical disc 400 through the reader-writer 100. また、必要であれば、PC150からリーダライタ100を介して所定の光ディスクのタグ情報を書き換えることもできる。 If necessary, it is also possible to rewrite the tag information of a predetermined optical disc through the reader-writer 100 from PC 150. このように、ICタグ200を備えた光ディスク400を棒状アンテナ9に挿入するだけで、容易に光ディスク400を一括管理することができる。 Thus, simply by inserting the optical disc 400 with an IC tag 200 to the rod-shaped antenna 9, a readily optical disc 400 can be collectively managed.

図8は本発明の第2の実施形態に係る棒状アンテナを備えたリーダライタによる光ディスク装置の構成図である。 Figure 8 is a block diagram of an optical disk apparatus according to a reader-writer provided with a rod-shaped antenna according to a second embodiment of the present invention. 同じ構成要素には同じ参照番号を付して説明する。 The same components will be denoted by the same reference numbers. この光ディスク装置500は、棒状アンテナ9を内装したディスク回転軸61と、ICタグ200を備えた光ディスク400と、光ディスク400に情報を読み書きする光ピックアップ62と、光ピックアップ62を駆動するディスクドライバ60と、ICタグ用リーダライタ100と、全体を制御するPC150とを備えて構成される。 The optical disc apparatus 500 includes a disk rotation shaft 61 furnished the rod-shaped antenna 9, the optical disc 400 with an IC tag 200, an optical pickup 62 for reading and writing information on an optical disk 400, a disk driver 60 which drives the optical pickup 62 configured to include an IC tag reader writer 100, and PC150 for controlling the whole.
図8を参照して動作を説明する。 Referring to FIG. 8 for explaining the operation. 図7の第1の実施形態では複数の光ディスクのICタグ情報を一括して処理したが、本実施形態では、光ディスクに記録された情報の処理と、ICタグの情報の処理を光ディスク1枚単位で同時に行うものである。 Was treated collectively IC tag information of a plurality of optical disks in the first embodiment of FIG. 7, in this embodiment, the processing of information recorded on the optical disk, processing the optical disc one unit of information of the IC tag in is performed at the same time. そのために、通常のディスク操作が可能な機構の他に、ICタグのリーダライタを併せて備えるものである。 Therefore, in which in addition to the normal disk operation possible mechanisms provided together writer of the IC tag. 本実施形態では、例えば、光ディスクのセキュリティを行う場合について説明する。 In the present embodiment, for example, described a case of performing the security of the optical disk. まずディスク回転軸61に光ディスク400を装填する。 First loaded optical disc 400 to the disc rotation axis 61. そしてPC150がこの光ディスクのICタグに記憶されている情報を読みとった結果、ICタグにコピー禁止の情報が書き込まれていた場合、PC150からコピー動作の指示が出されると、表示部にコピー不可の表示をして動作を停止する。 The result of PC 150 has read the information stored in the IC tag of the optical disk, if information of the copy prohibition has been written to the IC tag, when the copy instruction operation is issued from the PC 150, the copy never on the display unit to stop the operation in the display. また他の例として、ICタグ200に光ディスク400の書き換え不可の領域を指定しておくことにより、光ディスク400の重要なデータが消失することを未然に防止できる。 As another example, by specifying the region of the rewritable optical disc 400 to the IC tag 200, it is possible to prevent the important data of the optical disk 400 is lost.

図9は本発明の第3の実施形態に係る棒状アンテナを備えたリーダライタによる金属板管理装置の構成図である。 Figure 9 is a configuration diagram of a metal plate management device by the reader writer having a rod-shaped antenna according to a third embodiment of the present invention. 同じ構成要素には同じ参照番号を付して説明する。 The same components will be denoted by the same reference numbers. この金属板管理装置600は、棒状アンテナ9と、ICタグ200を備えた複数の金属板65と、金属板65を保持する保持台66と、ICタグ用リーダライタ100と、全体を制御するPC150とを備えて構成される。 The metal plate management device 600 includes a rod-shaped antenna 9, a plurality of metal plates 65 having the IC tag 200, and the supporter 66 for holding the metal plate 65, the IC tag reader writer 100, which controls the entire PC150 configured with the door.
図9を参照して動作を説明する。 The operation will be described with reference to FIG. 金属にICタグを取り付けた場合、リーダライタからの電波が反射と減衰によりICタグが動作するための必要磁界に達しなくなり、交信が正常に行われないことは既に述べた。 If mounted an IC tag to a metal, a radio wave from the reader writer is no longer reach the required magnetic field for operating an IC tag by the attenuation and reflection, it has already been described that the communication is not performed normally. 管理する品物が金属の場合、ICタグを取り付けただけでは前述と同じ問題により交信が正常に行われない。 When goods managed metal, only attached an IC tag communication by the same problems as described above is not performed properly. そこで本実施形態では、金属板65の所定の場所に開口部67を設け、その開口部67と一致するようにICタグ200の開口部を備えることにより、金属の影響を回避して(その理由は図6を参照)ICタグ200の情報を読み書きすることができる。 Therefore, in the present embodiment, an opening 67 is provided in place of the metal plate 65, by providing the opening portion of the IC tag 200 to coincide with the opening 67, to avoid the influence of the metal (why it can read and write the information of the reference) IC tag 200 to FIG. 本実施形態では、管理する品物が金属の場合について説明したが、特に金属に限定する必要はないのは言うまでもない。 In this embodiment, the article to be managed has been described for the case of the metal, of course need not be limited to metals.

本発明のリーダライタの構成を示すブロック図である。 Is a block diagram showing the configuration of the reader-writer of the present invention. 本発明のICタグの構成を示すブロック図である。 Is a block diagram showing the configuration of an IC tag of the present invention. 本発明のICタグ200の一例を示す外観図である。 An example of an IC tag 200 of the present invention is an external view showing. 本発明のICタグ200を備えた光ディスクの外観図である。 It is an external view of an optical disc having an IC tag 200 of the present invention. 本発明の棒状アンテナの一例を示す外観構成図である。 Is an external configuration diagram showing an example of a rod-shaped antenna of the present invention. 本発明の棒状アンテナによるデータ交信方法を説明する図である。 By rod-shaped antenna of the present invention is a diagram illustrating a data communication method. 本発明の第1の実施形態に係る棒状アンテナを備えたリーダライタによる光ディスク管理装置の構成図である。 It is a configuration diagram of an optical disc management device by the reader writer having a rod-shaped antenna according to the first embodiment of the present invention. 本発明の第2の実施形態に係る棒状アンテナを備えたリーダライタによる光ディスク装置の構成図である。 It is a configuration diagram of an optical disc device according to a reader-writer provided with a rod-shaped antenna according to a second embodiment of the present invention. 本発明の第3の実施形態に係る棒状アンテナを備えたリーダライタによる金属板管理装置の構成図である。 It is a configuration diagram of a metal plate management device by the reader writer having a rod-shaped antenna according to a third embodiment of the present invention.

符号の説明 DESCRIPTION OF SYMBOLS

9 棒状アンテナ、57 保持台、100 リーダライタ、150 コンピュータ、200 ICタグ、300 光ディスク管理装置、400 光ディスク 9 the rod-shaped antenna, the holding stand 57, 100 writer, 150 computer, 200 IC tag, 300 optical disc management apparatus, 400 an optical disk

Claims (7)

  1. 所定の変調方式に基づく搬送電力の送信とデータの授受をICタグとの間で非接触にて行うリーダライタであって、 Exchanges transmission and data conveying electric power based on a predetermined modulation scheme a writer performed in a non-contact with the IC tag,
    前記リーダライタは棒状の磁心に導線を所定回数巻きつけた棒状アンテナを備え、前記ICタグのループアンテナと前記棒状アンテナの磁心が互いに挿通し合うことにより、前記ICタグに起電力を誘起して、前記ICタグとの間で所定の変調方式に基づく搬送電力の送信とデータの授受を行うことを特徴とするリーダライタ。 The interrogator includes a rod-shaped antenna which attached the predetermined number of times wound a conductive wire rod-shaped magnetic core, by the loop antenna and the magnetic core of the rod-shaped antenna of the IC tag is mutually inserted together, by inducing an electromotive force in the IC tag , writer, characterized in that for exchanging transmission and data conveying electric power based on a predetermined modulation scheme between the IC tag.
  2. 前記棒状アンテナの磁心材料は、フェライト、純鉄、珪素鋼、鉄・ニッケル合金、及びダストコアであることを特徴とする請求項1に記載のリーダライタ。 The bar core material of the antenna, ferrite, pure iron, silicon steel, the reader writer according to claim 1, wherein the iron-nickel alloy, and that the dust core.
  3. 前記棒状アンテナは、前記棒状磁心の長手方向の全長又は一部に亘って前記導線を所定回数巻きつけたことを特徴とする請求項1又は2に記載のリーダライタ。 The bar antenna, a reader-writer according to claim 1 or 2, characterized in that the longitudinal direction of the full-length or the wires over a portion of the rod-shaped magnetic core attached predetermined number turns.
  4. 請求項1記載のリーダライタのリードライト対象物としての前記ICタグは、誘電体基板と、該誘電体基板の所定の位置に設けた開口部の周縁に導線を所定回数周回して形成したループアンテナと、該ループアンテナを介して所定の変調方式に基づく搬送電力の送信とデータの授受を制御する集積回路とを備えたことを特徴とするICタグ。 The IC tag as read-write object interrogator of claim 1, wherein the dielectric substrate and a loop which the lead into the periphery of the opening provided at a predetermined position of the dielectric substrate is formed by a predetermined number of times circulation antenna and, IC tag characterized by comprising an integrated circuit that controls the exchange of the transmission data of the transport power based on a predetermined modulation scheme through the loop antenna.
  5. 請求項4記載のICタグの前記集積回路のメモリに当該ICタグの取付対象物に関する必要情報を記憶し、当該ICタグの開口部と前記取付対象物の開口部との位置関係が一致するように構成することにより、前記取付対象物の開口部を請求項1記載のリーダライタの前記棒状アンテナに挿入、若しくは前記棒状アンテナを前記取付対象物の開口部に挿入して前記取付対象物の必要情報の読み書きを行うことを特徴とする物品管理装置。 To claim 4 stores necessary information about the attachment object of memory to the IC tag of the integrated circuit of the IC tag according the positional relationship between the opening of the opening of the IC tag the attaching object matches by configuring the need of the insertion opening of the attachment object on the rod-shaped antenna of the reader-writer according to claim 1, or the attachment object by inserting the rod-shaped antenna into the opening of the attaching object article management apparatus characterized by reading and writing information.
  6. 請求項2又は3に記載の棒状アンテナをディスク回転軸内に形成したディスク機構部と、請求項4に記載のICタグを備えた光ディスクと、請求項1乃至3の何れか一項に記載のリーダライタとを備え、 A disk mechanism for the rod-shaped antenna according to claim 2 or 3 formed on the disk rotation inside shaft, and an optical disc with an IC tag according to claim 4, according to any one of claims 1 to 3 and a reader-writer,
    前記光ディスク機構部に前記光ディスクを装填することにより、該光ディスクのICタグに記憶された情報を読み書きすると共に、該光ディスクの記録情報を読み書きすることを特徴とする光ディスク装置。 By loading the optical disk into the optical disk mechanism, as well as read and write information stored in the IC tag of the optical disk, an optical disk apparatus characterized by reading and writing the record information of the optical disc.
  7. 前記ICタグは、前記光ディスクに貼付若しくは一体に形成されていることを特徴とする請求項6に記載の光ディスク装置。 The IC tag, an optical disk apparatus according to claim 6, characterized in that it is formed affixed or integral to the optical disc.
JP2003406003A 2003-12-04 2003-12-04 Reader/writer, ic tag, article control device, and optical disk device Pending JP2005165839A (en)

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