JP2005346820A - Optical disk having radio ic tag and optical disk reproducing device - Google Patents

Optical disk having radio ic tag and optical disk reproducing device Download PDF

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JP2005346820A
JP2005346820A JP2004164730A JP2004164730A JP2005346820A JP 2005346820 A JP2005346820 A JP 2005346820A JP 2004164730 A JP2004164730 A JP 2004164730A JP 2004164730 A JP2004164730 A JP 2004164730A JP 2005346820 A JP2005346820 A JP 2005346820A
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JP4360276B2 (en
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Masanori Ujino
雅則 氏野
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Funai Electric Co Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an additional service of content recorded in an optical disk without using a special authentication technology or an dedicated AV decoder in the optical disk and an optical disk reproducing device. <P>SOLUTION: A part or all of disk management information required for control of reproduction of contents recorded on a main part of the optical disk 2 is made to be recorded on a radio IC tag 3 not on an innermost peripheral track 29 shown in (b). Thereby, provision of additional content service which is unreproducible in a conventional optical disk reproducing device without having a radio IC tag reader 5 is enabled. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、DVD(Digital Versatile Disc)やCD(Compact Disc)等の光ディスク及び光ディスク再生装置に関するものである。   The present invention relates to an optical disc such as a DVD (Digital Versatile Disc) and a CD (Compact Disc), and an optical disc reproducing apparatus.

従来より、光ディスクのコンテンツとして膨大な音楽ソフト、ビデオソフト等が普及している。このような中で、利用者へのサービスの１つとして、光ディスク等の記録媒体のコンテンツの利用者が、ボーナストラックを視聴することができるようにすることが考えられる。   Conventionally, enormous music software, video software, and the like have been widely used as optical disc content. Under such circumstances, as one of the services to the user, it is conceivable that the user of the content of the recording medium such as an optical disc can view the bonus track.

従来の音楽サービスでは、サーバシステムを通じて楽曲データを購入するシステムにおいて、以前の購入者のデータを記録媒体とサーバシステムに記録しておき、再度購入する場合には、サーバシステムで購入者本人、購入記録媒体の内容を確認する事により、正規で購入したコンテンツを使用している購入者に対してのみ、新たなサービスを提供するものが知られている（特許文献１参照）。また、DVDオーディオディスクにオリジナル楽曲とは別にカラオケやBGMなどのボーナス楽曲を記録し、インターラクティブデータにより再生を許可することにより、ボーナス楽曲のサービスを提供するものが知られている。（特許文献２参照）。   In a conventional music service, in a system in which music data is purchased through a server system, the previous purchaser's data is recorded on the recording medium and the server system, and when the purchase is made again, the purchaser himself / herself is purchased by the server system. It is known that a new service is provided only to a purchaser who uses a genuinely purchased content by checking the contents of the recording medium (see Patent Document 1). In addition, there is known a service that provides bonus music services by recording bonus music such as karaoke or BGM separately from the original music on a DVD audio disc, and permitting playback by interactive data. (See Patent Document 2).

しかしながら、従来の楽曲のボーナストラックのサービスにおいて、DVD、CD等におけるボーナストラックの提供では、ネットワークを通じて行ったり、専用のオーディオデコーダを必要とするという問題があった。また、この場合、本人確認のため、特別のID番号や暗証番号等の認証作業も伴うので大変複雑であり、一般のユーザには馴染まない面が多かった。そこで、簡単な構成でかつ、機密性の高いボーナストラックのサービスの提供が望まれていた。
特開２００２−３３０３９５号公報 特開２００２−３５２５１１号公報 However, in the conventional bonus track service for music, provision of bonus tracks for DVDs, CDs, and the like has a problem of being performed through a network or requiring a dedicated audio decoder. In this case, authentication work such as a special ID number or personal identification number is also required for identity verification, which is very complicated and often unfamiliar to general users. Therefore, it has been desired to provide a bonus track service with a simple configuration and high confidentiality.
JP 2002-330395 A JP 2002-352511 A

本発明は、上記の問題を解決するためになされたものであり、簡単な構成で、機密性の高いボーナストラック等の付加的なコンテンツのサービスを提供することが可能な、無線ICタグを有する光ディスク及び光ディスク再生装置を提供することを目的とする。   The present invention has been made to solve the above problems, and has a wireless IC tag capable of providing a service for additional content such as a highly sensitive bonus track with a simple configuration. An object is to provide an optical disc and an optical disc reproducing apparatus.

上記目的を達成するために請求項１の発明は、無線ICタグを有する光ディスクにおいて、前記無線ICタグは、ディスク本体におけるコンテンツの記録されていないクランピングエリア又は前記ディスク本体における光照射側と反対側のディスク面（以下、レーベル面という）に貼り付けられた状態、又は前記ディスク本体の基板内に埋め込まれた状態で、前記ディスク本体に配設されており、前記クランピングエリア又は前記レーベル面に、前記無線ICタグ用の円周状のアンテナを有し、前記ディスク本体に記録されたコンテンツの再生の制御に必要なディスク管理情報の内、一部又は全てのタイトルの再生の制御に必要な制御情報が、前記ディスク本体の最内周部分の領域ではなく、前記無線ICタグに記録されているものである。   In order to achieve the above object, the invention of claim 1 is an optical disc having a wireless IC tag, wherein the wireless IC tag is opposite to a clamping area where no content is recorded on the disc body or a light irradiation side of the disc body. The clamping area or the label surface is disposed on the disc body in a state where it is affixed to the side disc surface (hereinafter referred to as a label surface) or embedded in a substrate of the disc body. In addition, it has a circular antenna for the wireless IC tag, and is necessary for controlling the reproduction of a part or all of the disc management information necessary for controlling the reproduction of the content recorded on the disc body. Such control information is recorded not on the innermost peripheral area of the disc body but on the wireless IC tag.

請求項２の発明は、無線ICタグを有する光ディスクにおいて、光ディスク本体に記録されたコンテンツの再生の制御に必要なディスク管理情報の内、一部又は全てのタイトルの再生の制御に必要な制御情報が、前記ディスク本体ではなく、前記無線ICタグに記録されているものである。   According to the second aspect of the present invention, in the optical disc having the wireless IC tag, the control information necessary for controlling the reproduction of a part or all of the disc management information necessary for controlling the reproduction of the content recorded on the optical disc main body. However, it is recorded on the wireless IC tag, not on the disc main body.

請求項３の発明は、請求項１又は請求項２に記載の光ディスクに設けられた無線ICタグ内に記録された制御情報を読み出すためのリーダ装置と、請求項１又は請求項２に記載の光ディスクのディスク本体に記録されたコンテンツを再生する再生手段と、前記リーダ装置及び前記再生手段を制御する制御手段とを備え、前記制御手段は、前記リーダ装置によって前記無線ICタグから読み出された前記制御情報のみに基づいて、又はこの制御情報に請求項１又は請求項２に記載の光ディスクのディスク本体から読みだしたディスク管理情報を加えた情報に基づいて、前記再生手段によるコンテンツの再生を制御するようにしたものである。   The invention according to claim 3 is a reader device for reading control information recorded in a wireless IC tag provided on the optical disc according to claim 1 or claim 2, and according to claim 1 or claim 2. Reproducing means for reproducing the content recorded on the disc main body of the optical disc, and control means for controlling the reader device and the reproducing means, the control means being read from the wireless IC tag by the reader device Based on the control information alone or based on information obtained by adding the disc management information read from the disc main body of the optical disc according to claim 1 or 2 to the control information, the reproduction means reproduces the content. It is intended to be controlled.

請求項４の発明は、無線ICタグを有する光ディスクにおいて、無線ICタグのリーダ装置を有しない光ディスク再生装置で再生可能なタイトル以外の、追加のタイトルの再生に必要なキー情報の一部が、前記無線ICタグに記録されているものである。   According to the invention of claim 4, in an optical disc having a wireless IC tag, a part of key information necessary for reproducing an additional title other than a title that can be reproduced by an optical disc reproducing device not having a reader device of the wireless IC tag is It is recorded on the wireless IC tag.

請求項５の発明は、請求項４に記載の光ディスクに設けられた無線ICタグからキー情報の一部を読み出すためのリーダ装置と、請求項４に記載の光ディスクのディスク本体に記録されたコンテンツを再生する再生手段と、前記リーダ装置及び前記再生手段を制御する制御手段とを備え、前記制御手段は、前記リーダ装置によって複数の前記光ディスクの無線ICタグから読み出されたキー情報の一部を組合わせて、キー情報を生成し、このキー情報が正当な場合に限り、無線ICタグのリーダ装置を有しない光ディスク再生装置で再生可能なタイトル以外の、追加のタイトルを再生することができるようにしたものである。   The invention according to claim 5 is a reader device for reading a part of key information from a wireless IC tag provided on the optical disc according to claim 4, and a content recorded on the disc main body of the optical disc according to claim 4. And a control means for controlling the reader device and the playback means, wherein the control means is a part of key information read from the wireless IC tags of the plurality of optical disks by the reader device. Are combined to generate key information, and only when this key information is valid, additional titles other than those that can be played back by an optical disk playback device that does not have a wireless IC tag reader device can be played back. It is what I did.

請求項１の発明によれば、ディスク管理情報の内、一部又は全てのタイトルの再生の制御に必要な制御情報が、無線ICタグに記録されているので、この無線ICタグのリーダ装置をもった光ディスク再生装置を用いて、無線ICタグからディスク管理情報を読み出し、このディスク管理情報に基づいて、従来の無線ICタグリーダ装置を備えていない光ディスク再生装置では再生できないタイトル（追加のコンテンツ）を再生することができる。
これにより、従来の光ディスク再生装置では再生できない付加的なコンテンツのサービスを提供することが可能となる。すなわち、無線ICタグリーダ付きの光ディスク再生装置を持っているユーザのみが、付加的なコンテンツサービスを受けることができる。また、このコンテンツの再生には、特別の認証作業や専用のAVデコーダを備える等の複雑な構成が必要とされないので、簡単な構成で付加的なコンテンツのサービスを提供することが可能となる。勿論、コンテンツのタイトル数などのサービスの程度も自由に変えて提供できる。 According to the first aspect of the present invention, the control information necessary for controlling the reproduction of a part or all of the disc management information is recorded on the wireless IC tag. The disc management information is read from the wireless IC tag using the optical disc playback device, and a title (additional content) that cannot be played back by the optical disc playback device that does not include the conventional wireless IC tag reader device is read based on the disc management information. Can be played.
This makes it possible to provide additional content services that cannot be played back by conventional optical disc playback apparatuses. That is, only a user who has an optical disk playback device with a wireless IC tag reader can receive an additional content service. In addition, since the content reproduction does not require a complicated configuration such as special authentication work or a dedicated AV decoder, an additional content service can be provided with a simple configuration. Of course, the level of services such as the number of content titles can be freely changed and provided.

また、ディスク管理情報の一部又は全部を、ディスク本体ではなく、無線ICタグに記録しているので、例え、何らかの形でディスク本体のコンテンツ内容が違法にコピーされたとしても、無線ICタグ内のディスク管理情報はコピーされない。従って、コピー先のディスクにはディスク管理情報が一部しかなく、この光ディスクに記録されたコンテンツも少なくとも一部しか再生することができないので、機密性が高く保たれる。   Also, because part or all of the disc management information is recorded on the wireless IC tag, not on the disc itself, even if the contents of the disc itself are illegally copied in some way, The disk management information is not copied. Accordingly, since the copy destination disc has only a part of the disc management information and at least a part of the content recorded on the optical disc can be reproduced, the confidentiality is kept high.

請求項２の発明によれば、光ディスク本体に記録された、コンテンツの再生の制御に必要なディスク管理情報の内、一部又は全てのタイトルの再生の制御に必要な制御情報が、前記ディスク本体ではなく、前記無線ICタグに記録されているので、前記請求項１と同様の効果が得られる。   According to the second aspect of the present invention, the control information necessary for controlling the reproduction of part or all of the disc management information necessary for controlling the reproduction of the content recorded on the optical disc body is the disc body. However, since it is recorded in the wireless IC tag, the same effect as in the first aspect can be obtained.

請求項３の発明によれば、光ディスク再生装置に、無線ICタグ内に記録された制御情報を読み出すためのリーダ装置を設けたことにより、このリーダ装置から、この無線ICタグ内の前記制御情報を読み出すことができる。そして、この制御情報のみに基づいて、又はこの制御情報に、請求項１又は請求項２に記載の光ディスクのディスク本体から読み出されたディスク管理情報を加えた情報に基づいて、光ディスクのディスク本体に記録されたコンテンツを再生することもできる。これにより、従来の無線ICタグリーダ装置を持たない光ディスク再生装置では、一部のタイトルのみしか再生できないが、前記無線ICタグリーダ装置を持つ光ディスク再生装置では、追加のタイトル又は全てのタイトルの再生を行うことができるようにすることができる。即ち、本構成により、簡単に付加的なコンテンツのサービスを提供することができ、請求項１と同様の効果を得ることができる。   According to the invention of claim 3, by providing a reader device for reading out the control information recorded in the wireless IC tag in the optical disk reproducing device, the control information in the wireless IC tag is read from the reader device. Can be read out. Then, based on only this control information, or based on information obtained by adding the disc management information read from the disc body of the optical disc according to claim 1 to this control information. It is also possible to play back the content recorded in. As a result, only a part of the titles can be played back by the optical disc playback apparatus that does not have the conventional wireless IC tag reader device. However, the optical disc playback apparatus having the wireless IC tag reader device plays back additional titles or all titles. Can be able to. That is, according to this configuration, it is possible to easily provide an additional content service, and the same effect as in claim 1 can be obtained.

請求項４の発明によれば、無線ICタグを有する光ディスクにおいて、無線ICタグのリーダ装置を有しない光ディスク再生装置で再生可能なタイトル以外の、追加のタイトルの再生に必要なキー情報の一部が、無線ICタグに記録されているので、この無線ICタグのリーダ装置を備えた光ディスク再生装置を用いて、追加のタイトルの再生に必要なキー情報の一部を読み出すことができる。このキー情報を用いて、追加のタイトルの再生を制御することにより、ボーナストラック等のサービスを選択的に提供することができる。   According to the fourth aspect of the present invention, in the optical disc having the wireless IC tag, a part of the key information necessary for reproducing the additional title other than the title that can be reproduced by the optical disc reproducing device not having the reader device of the wireless IC tag. However, since it is recorded on the wireless IC tag, a part of the key information necessary for reproducing the additional title can be read out using the optical disk reproducing device provided with the reader device of the wireless IC tag. By using this key information to control the playback of additional titles, services such as bonus tracks can be selectively provided.

請求項５の発明によれば、光ディスク再生装置は、複数の光ディスクの無線ICタグから読み出されたキー情報の一部を組合わせて、キー情報を生成し、このキー情報が正当な場合に限り、無線ICタグのリーダ装置を有しない光ディスク再生装置で再生可能なタイトル以外の、追加のタイトルを再生することができる。従って、複数枚の前記光ディスクの無線ICタグから読み出された、複数のキー情報の組み合わせで生成したキー情報でもって、追加のタイトルを再生できる。従って、このキー情報の適用により、上記複数枚以外の別の光ディスクのタイトルを再生することが可能となり、サービスの対象となる光ディスクを指定する等、選択的なサービスもでき、サービスの幅を広げることができる。   According to the fifth aspect of the present invention, the optical disc playback apparatus generates key information by combining a part of key information read from the wireless IC tags of a plurality of optical discs, and when the key information is valid. As long as the title can be played back by an optical disk playback device that does not have a reader device for a wireless IC tag, additional titles can be played back. Therefore, an additional title can be reproduced with key information generated from a combination of a plurality of key information read from the wireless IC tags of the plurality of optical disks. Therefore, by applying this key information, it is possible to reproduce the titles of other optical discs other than the plurality of optical discs, and it is possible to perform selective services such as specifying optical discs to be serviced, thereby expanding the range of services. be able to.

以下、図面を参照して本発明の実施の形態を説明する。図１は、本実施形態による無線ICタグ３を有する光ディスク２（以下、光ディスクと略す）と、無線ICタグリーダ付き光ディスク再生装置１（以下、光ディスク再生装置と略す）とを示す。光ディスク再生装置１には無線ICタグリーダ装置５が内蔵されており、光ディスク２の表面には、無線ICタグ３と、この無線ICタグ３に接続されて光ディスク面上で円周状に形成されたアンテナ４とが配設されている。   Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an optical disc 2 (hereinafter abbreviated as an optical disc) having a wireless IC tag 3 and an optical disc playback apparatus 1 with a radio IC tag reader (hereinafter abbreviated as an optical disc playback device) according to the present embodiment. The optical disk reproducing device 1 has a built-in wireless IC tag reader device 5. The surface of the optical disk 2 is formed with a wireless IC tag 3 and a circular shape on the surface of the optical disk connected to the wireless IC tag 3. An antenna 4 is provided.

図２は、上記光ディスク再生装置１の電気ブロック図を示す。同図で、無線ICタグ３を有する光ディスク２が光ディスク再生装置１に挿入されると、光ディスク２に装着された無線ICタグ３に記録されているディスク管理情報は、無線ICタグ３の近傍に配置された無線ICタグリーダ装置（以下、リーダ装置と略す）５により、無線交信を通じて読み取られる。リーダ装置５内のアンテナ（図示していない）は、送受信感度を高めるため、光ディスク２の面と平行で、そのアンテナの中心が、空間的に光ディスク２の円盤の中心軸上にくるように配置されている。リーダ装置５により読み取られたディスク管理情報は、リーダ装置５から全体制御部１０に送られる。また、光ディスク２のディスク本体２１（図３（a）参照）における最内周に記録されたディスク管理情報は、光ピックアップ６、信号処理部７を経て、全体制御部１０に送られる。全体制御部１０は、これらのディスク管理情報を用いて、光ディスク２内のコンテンツの再生動作をスタートさせ、光ディスク２内に記録された情報を読み取とって、コンテンツを再生する。なお、信号処理部７は、RF増幅部１２で増幅された光ピックアップ６からのRF信号を基に、フォーカス制御信号、トラッキング制御信号を生成してサーボ制御部８を制御する。情報再生部９は、RF信号から映像、音声情報を再生するデコーダである。全体制御部１０は、上記機能に加え、スピンドルモータ１３、移動モータ部１５、レーザ駆動部１４、信号処理部７、サーボ制御部８、情報再生部９、及び制御に必要な情報を記憶するメモリ１１等を制御して、装置全体のコントロールを行う。   FIG. 2 shows an electric block diagram of the optical disc reproducing apparatus 1. In this figure, when the optical disc 2 having the wireless IC tag 3 is inserted into the optical disc reproducing apparatus 1, the disc management information recorded on the wireless IC tag 3 attached to the optical disc 2 is in the vicinity of the wireless IC tag 3. The wireless IC tag reader device (hereinafter abbreviated as a reader device) 5 is used for reading through wireless communication. An antenna (not shown) in the reader device 5 is arranged in parallel with the surface of the optical disc 2 so that the center of the antenna is spatially on the central axis of the disc of the optical disc 2 in order to increase transmission / reception sensitivity. Has been. The disc management information read by the reader device 5 is sent from the reader device 5 to the overall control unit 10. Further, the disc management information recorded on the innermost circumference of the disc main body 21 (see FIG. 3A) of the optical disc 2 is sent to the overall control unit 10 via the optical pickup 6 and the signal processing unit 7. Using the disc management information, the overall control unit 10 starts the reproduction operation of the content in the optical disc 2, reads the information recorded in the optical disc 2, and reproduces the content. The signal processing unit 7 controls the servo control unit 8 by generating a focus control signal and a tracking control signal based on the RF signal from the optical pickup 6 amplified by the RF amplification unit 12. The information reproducing unit 9 is a decoder that reproduces video and audio information from the RF signal. In addition to the above functions, the overall control unit 10 includes a spindle motor 13, a moving motor unit 15, a laser driving unit 14, a signal processing unit 7, a servo control unit 8, an information reproducing unit 9, and a memory that stores information necessary for control. 11 etc. are controlled and the whole apparatus is controlled.

図３（a）、（b）は、上記光ディスク２におけるディスク本体２１、無線ICタグ３、アンテナ４等の関係を説明する図である。図３（a）において、光ディスク２のディスク本体２１は、ここでは２層ディスクの構造を示しており、２２a、２２bはディスク本体２１の両面に設けられた基板で、２４a、２４bは２層の記録層であり、２３は記録層２４a、２４bの間に設けられたスペース層である。２５はディスク本体２１のセンターに設けられたセンターホールで、２６はディスク本体２１内で記録に使用されないクランピングエリアである。無線ICタグ３は、レーザ光が照射される記録面２８と反対側のレーベル面２７上であればどこに配してもよいが、ここではクランピングエリア２６面上に装着している。アンテナ４もレーベル面２７上ではどこに配してもよいが、ここではクランピングエリア２６上に配されている。アンテナ４と無線ICタグ３は電気的に接続されており、無線ICタグ３はアンテナ４を介して情報を送受信する。無線ICタグ３はレーベル面２７の表面に装着しているが、ディスク本体２１の内部、例えば基板２２a等に埋め込むことも可能であり、アンテナ４も同様に埋め込むことができる。   3A and 3B are diagrams for explaining the relationship among the disk main body 21, the wireless IC tag 3, the antenna 4 and the like in the optical disk 2. FIG. In FIG. 3A, the disk main body 21 of the optical disk 2 shows the structure of a two-layer disk here, 22a and 22b are substrates provided on both sides of the disk main body 21, and 24a and 24b are two-layered disks. A recording layer 23 is a space layer provided between the recording layers 24a and 24b. A center hole 25 is provided at the center of the disc main body 21, and a clamping area 26 is not used for recording in the disc main body 21. The wireless IC tag 3 may be placed anywhere on the label surface 27 opposite to the recording surface 28 irradiated with the laser light, but here is mounted on the clamping area 26 surface. The antenna 4 may be disposed anywhere on the label surface 27, but is disposed on the clamping area 26 here. The antenna 4 and the wireless IC tag 3 are electrically connected, and the wireless IC tag 3 transmits and receives information via the antenna 4. Although the wireless IC tag 3 is attached to the surface of the label surface 27, it can be embedded in the disk main body 21, for example, in the substrate 22a, and the antenna 4 can be embedded in the same manner.

図３（b）は、図３(a)に示される光ディスク２の平面図である。図中のアンテナ４は、金属を表面に印刷して形成したものであってもよい。また、本アンテナ４は、円周上に形成されているので、光ディスク２が回転しても、電波の輻射する方向がディスク中心軸に沿って同一方向なので、このディスク中心軸上にリーダ装置５内のアンテナ（図示していない）を設けたことにより、無線ICタグ３に記録されたデータの送受信において、電波の変動が少ない安定した送受信を実現することができる。   FIG. 3B is a plan view of the optical disc 2 shown in FIG. The antenna 4 in the figure may be formed by printing a metal on the surface. Further, since the antenna 4 is formed on the circumference, even if the optical disk 2 rotates, the direction of radio wave radiation is the same along the disk central axis. By providing the internal antenna (not shown), stable transmission / reception with less fluctuation of radio waves can be realized in transmission / reception of data recorded in the wireless IC tag 3.

次に、図４（a）、(b)を参照して、上記無線ICタグ３を備えた光ディスク２において、ディスク管理情報が記録される無線ICタグ３とディスク本体２１との関係を説明する。図４（a）は、従来の光ディスク１０２で、最内周トラック１２９（図４（a）中の線ハッチング部）にコンテンツの再生の制御に必要なディスク管理情報が記録されている。従来の光ディスク再生装置は、このディスク管理情報を先ず読み取って、このディスク管理情報を用いてコンテンツの再生を行う。従って、このディスク管理情報なしにはコンテンツの再生はできない。   Next, with reference to FIGS. 4A and 4B, the relationship between the wireless IC tag 3 in which the disk management information is recorded and the disk body 21 in the optical disk 2 provided with the wireless IC tag 3 will be described. . FIG. 4A shows a conventional optical disc 102 in which disc management information necessary for content playback control is recorded on the innermost track 129 (the line hatched portion in FIG. 4A). A conventional optical disc reproducing apparatus first reads the disc management information and reproduces content using the disc management information. Accordingly, the content cannot be reproduced without this disc management information.

図４（b）は、本発明の無線ICタグ３を備えた光ディスク２を示しており、光ディスク２の最内周トラック２９（図３(ｂ)中の点ハッチング部、トラック面は紙面の裏側）には、コンテンツの再生の制御に必要なディスク管理情報の一部又は全部が存在せず、無線ICタグ３にディスク管理情報の一部又は全部が記録されている。即ち、本実施形態による無線ICタグ３を有する光ディスク２を、従来の無線ICタグのリーダ装置を持たない光ディスク再生装置で再生しようとしても、本光ディスク２には、ディスク管理情報の一部又は全部が存在しないので、光ディスク２に格納された一部又は全てのタイトルを再生することができない。   FIG. 4B shows the optical disc 2 provided with the wireless IC tag 3 of the present invention. The innermost track 29 of the optical disc 2 (the point hatched portion in FIG. 3B, the track surface is the back side of the paper surface) ) Does not include part or all of the disc management information necessary for controlling the reproduction of the content, and part or all of the disc management information is recorded in the wireless IC tag 3. That is, even if the optical disc 2 having the wireless IC tag 3 according to the present embodiment is to be played back by an optical disc playback device that does not have a conventional wireless IC tag reader device, the optical disc 2 contains part or all of the disc management information. Therefore, some or all of the titles stored on the optical disc 2 cannot be reproduced.

次に、本発明の他の実施形態の光ディスクと光ディスク再生装置について、図５を参照して説明する。同図で、複数の光ディスク２a、２b、2cは、それぞれ無線ICタグ２a、２b、２cとアンテナ４a、4b、4cを装着している。今、別々のキー情報を含む前記光ディスク2a、2bを、前記無線ICタグリーダ付き光ディスク再生装置１に挿入すると、前記光ディスク2a、2bの各無線ICタグ3a、3bから、リーダ装置５によりキー情報が読み出され、これらのキー情報を組み合わせて、新たなキー情報が生成される。このキー情報を用いて、前記光ディスク3a内の、従来の無線ICタグを持たない光ディスク再生装置で再生できないタイトルが、無線ICタグリーダ付き光ディスク再生装置１によって再生される。従って、光ディスク2a、2bを所有するユーザは、これらの光ディスク2cを購入した場合、新しいコンテンツ（追加のタイトル）のサービスを受けることができる。   Next, an optical disc and an optical disc reproducing apparatus according to another embodiment of the present invention will be described with reference to FIG. In the figure, a plurality of optical disks 2a, 2b, 2c are equipped with wireless IC tags 2a, 2b, 2c and antennas 4a, 4b, 4c, respectively. Now, when the optical discs 2a and 2b including different key information are inserted into the optical disc playback apparatus 1 with the wireless IC tag reader, key information is received from the wireless IC tags 3a and 3b of the optical discs 2a and 2b by the reader device 5. It is read out and new key information is generated by combining these key information. Using this key information, a title in the optical disc 3a that cannot be played back by an optical disc playback device without a conventional wireless IC tag is played back by the optical disc playback device 1 with a wireless IC tag reader. Therefore, the user who owns the optical discs 2a and 2b can receive a service of new content (additional title) when purchasing these optical discs 2c.

上記実施形態の具体例について説明する。無線ICタグ付き音楽用CDでシングル盤Aとシングル盤Bの２枚を持っている場合、シングル盤Aとシングル盤Bのそれぞれの無線ICタグ内に、各キー情報を記録しておき、それらシングル盤Aとシングル盤Bから取り出された２つのキー情報を読み出し、それらを組合わせることで新たなキー情報を生成する。この新たなキー情報を用いて、第３の音楽用CD（例えば別の無線ICタグ付き音楽アルバム版CD等）の中に内蔵されている特別音楽ソフト（例えば、前記アルバムの１３曲目）の再生を可能にする。このように、本無線ICタグリーダ付き光ディスク再生装置１は、無線ICタグリーダを持たない光ディスク再生装置との互換性を保ちつつ、ユーザに付加的なコンテンツのサービスが得られる特典を提供することができるので、無線ICタグ機能付きプレイヤの需要促進に寄与することができる。   A specific example of the above embodiment will be described. If you have a single CD A and a single CD B with a music CD with a radio IC tag, record each key information in the radio IC tag of each of the single CD A and single CD B. Two key information extracted from the single board A and the single board B is read, and new key information is generated by combining them. Using this new key information, playback of special music software (for example, the 13th song of the album) built in the third music CD (for example, another album with a wireless IC tag) Enable. As described above, the optical disc playback apparatus 1 with the wireless IC tag reader can provide the user with a privilege that provides additional content services while maintaining compatibility with the optical disc playback apparatus that does not have the wireless IC tag reader. Therefore, it can contribute to the demand promotion of the player with the wireless IC tag function.

以上述べたように、本実施形態による無線ICタグ付き光ディスク２と無線ICタグリーダ付き光ディスク再生装置１によれば、ディスク管理情報の内、一部又は全てのタイトルの再生の制御に必要な制御情報を、光ディスク２ではなく、無線ICタグ３に記録し、この制御情報を無線ICタグ３の専用のリーダ装置５で読み出すようにした。このような構成にしたことにより、従来の無線ICタグリーダ装置を備えていない光ディスク再生装置では再生できないタイトルを、無線ICタグ３からの読み出した情報を用いて再生できる。これにより、従来の光ディスク再生装置では再生できない、付加的なコンテンツのサービスを提供することが可能となる。すなわち、無線ICタグリーダ付きの光ディスク再生装置を持っているユーザにのみが、新しいコンテンツサービスを受けることができる。また、このコンテンツの再生には、特別の個人認証作業や専用のAVデコーダを備える等、複雑な構成が必要とされないので、簡単な構成で、付加的なコンテンツのサービスを提供することが可能となる。また、コンテンツのタイトル数などのサービスの程度も自由に変えて提供できる。   As described above, according to the optical IC tag-equipped optical disc 2 and the radio IC tag reader-equipped optical disc playback apparatus 1 according to the present embodiment, control information necessary for controlling playback of a part or all of the titles in disc management information. Is recorded not on the optical disc 2 but on the wireless IC tag 3, and this control information is read by the reader device 5 dedicated to the wireless IC tag 3. With this configuration, a title that cannot be played back by an optical disc playback device that does not include a conventional wireless IC tag reader device can be played back using information read from the wireless IC tag 3. As a result, it is possible to provide an additional content service that cannot be played back by a conventional optical disc playback apparatus. That is, only a user who has an optical disk playback device with a wireless IC tag reader can receive a new content service. Also, since this content playback does not require a complicated configuration such as special personal authentication work or a dedicated AV decoder, it is possible to provide additional content services with a simple configuration. Become. Also, the level of services such as the number of content titles can be freely changed and provided.

また、ディスク管理情報の一部又は全部を、ディスク本体ではなく、無線ICタグに記録しているので、例え、何らかの形でディスク本体のコンテンツ内容が違法にコピーされたとしても、無線ICタグ３内のディスク管理情報はコピーされない。従って、コピー先のディスクにはディスク管理情報が少なくとも一部しかなく、この光ディスクに記録されたコンテンツも、少なくとも一部しか再生することができないので、機密性が高く保たれる。   Also, since part or all of the disc management information is recorded on the wireless IC tag, not the disc body, even if the contents of the disc body are illegally copied in some way, the wireless IC tag 3 The disk management information is not copied. Therefore, since the copy destination disc has at least a part of the disc management information, and the content recorded on the optical disc can be reproduced at least in part, the confidentiality is kept high.

なお、本発明は、上記実施形態に限られるものではなく、様々な変形が可能である。上記で、２枚の前記光ディスク２a、2bのキー情報を用いて、新たにキー情報を生成し、第3番目の前記光ディスク２c内における特別のタイトルの再生を可能にすることができることを述べたが、例えば、光ディスクが４枚以上でもよく、また、各キー情報は１つとは限らず、複数であっても勿論かまわない。   In addition, this invention is not restricted to the said embodiment, Various deformation | transformation are possible. As described above, it is possible to newly generate key information using the key information of the two optical discs 2a and 2b, and to play a special title in the third optical disc 2c. However, for example, the number of optical disks may be four or more, and each key information is not limited to one, and may be plural.

また、例えば、上述の実施形態では無線ICタグ３とアンテナ４をレーベル面２７のクランピングエリア２６の表面に装着しているが、レーベル面２７上であればどこに装着してもよい。また、無線ICタグ３を、ディスク本体２１の基板２２a内のレーベル面２７近傍に埋め込んでもよい。この場合、無線ICタグ３が基板２２aで保護されることになり、簡単に取り外されず、実質的に安全で確実な無線ICタグ３の実装ができる。さらに、アンテナ４の形は、必ずしも円形である必要はなく、多角形等でもよく、光ディスク２の中心に対称な形で形成されていればよい。また、光ディスク再生装置側のリーダ装置内のアンテナも、無線ICタグ内のアンテナと同じく、光ディスクの中心軸上に対称に円形又は多角形等で構成すれば、送受信感度が向上し、より安定した装置の制御を行うことができる。   Further, for example, in the above-described embodiment, the wireless IC tag 3 and the antenna 4 are mounted on the surface of the clamping area 26 of the label surface 27, but may be mounted anywhere on the label surface 27. Further, the wireless IC tag 3 may be embedded in the vicinity of the label surface 27 in the substrate 22a of the disc body 21. In this case, the wireless IC tag 3 is protected by the substrate 22a, and is not easily removed, and the wireless IC tag 3 can be mounted substantially safely and reliably. Furthermore, the shape of the antenna 4 is not necessarily circular, but may be a polygonal shape or the like as long as it is formed symmetrically with respect to the center of the optical disc 2. Also, the antenna in the reader device on the optical disk playback device side, like the antenna in the wireless IC tag, can be configured with a circular or polygonal shape symmetrically on the central axis of the optical disk, thereby improving the transmission / reception sensitivity and making it more stable. The device can be controlled.

さらに、無線ICタグ内に記録されるディスク管理情報を別途暗号化することにより、強固なコピー防止を行うことができる。さらに、ICタグ内に記録する情報として、ディスク管理情報以外の情報を記録させることにより、新たなサービスを付加することも可能である。   Further, by separately encrypting the disc management information recorded in the wireless IC tag, strong copy protection can be performed. Furthermore, it is also possible to add a new service by recording information other than the disc management information as information to be recorded in the IC tag.

本発明の一実施形態に係る無線ICタグを有する光ディスクと光ディスク再生装置の外観図。1 is an external view of an optical disc having a wireless IC tag and an optical disc playback apparatus according to an embodiment of the present invention. 上記光ディスク再生装置の電気的ブロック図。FIG. 3 is an electrical block diagram of the optical disc playback apparatus. (a),(b)は、それぞれ上記光ディスクの斜視図と平面図。(a), (b) is the perspective view and top view of the said optical disk, respectively. (a),(b)は、それぞれ従来の光ディスクと上記光ディスクにおけるディスク管理情報の格納場所の説明図。(a), (b) is explanatory drawing of the storage place of the disc management information in the conventional optical disc and the said optical disc, respectively. 本発明の他の実施形態に係る無線ICタグを有する光ディスクと光ディスク再生装置の外観図。FIG. 6 is an external view of an optical disc having a wireless IC tag and an optical disc playback apparatus according to another embodiment of the present invention.

符号の説明Explanation of symbols

１ 無線ICタグリーダ付き光ディスク再生装置
２ 無線ICタグを有する光ディスク
３ 無線ICタグ
４ アンテナ
５ 無線ICタグリーダ装置
１０ 全体制御部
２１ ディスク本体
２６ クランピングエリア
２７ レーベル面
２８ 記録面
２９ 最内周トラック
２２a、２２b ディスク基板 DESCRIPTION OF SYMBOLS 1 Optical disk reproducing device with a wireless IC tag reader 2 Optical disk having a wireless IC tag 3 Wireless IC tag 4 Antenna 5 Wireless IC tag reader device 10 Overall control unit 21 Disc body 26 Clamping area 27 Label surface 28 Recording surface 29 Innermost track 22a, 22b disk substrate

Claims (5)

無線ICタグを有する光ディスクにおいて、
前記無線ICタグは、ディスク本体におけるコンテンツの記録されていないクランピングエリア又は前記ディスク本体における光照射側と反対側のディスク面（以下、レーベル面という）に貼り付けられた状態、又は前記ディスク本体の基板内に埋め込まれた状態で、前記ディスク本体に配設されており、
前記クランピングエリア又は前記レーベル面に、前記無線ICタグ用の円周状のアンテナを有し、
前記ディスク本体に記録されたコンテンツの再生の制御に必要なディスク管理情報の内、一部又は全てのタイトルの再生の制御に必要な制御情報が、前記ディスク本体の最内周部分の領域ではなく、前記無線ICタグに記録されていることを特徴とする光ディスク。 In an optical disc having a wireless IC tag,
The wireless IC tag is affixed to a clamping area where no content is recorded in the disc body or a disc surface (hereinafter referred to as a label surface) opposite to the light irradiation side of the disc body, or the disc body Embedded in the substrate of the disk, disposed on the disk body,
The clamping area or the label surface has a circumferential antenna for the wireless IC tag,
Of the disc management information necessary for controlling the playback of the content recorded on the disc body, the control information necessary for controlling the playback of a part or all of the titles is not the innermost area of the disc body. An optical disc recorded on the wireless IC tag. 無線ICタグを有する光ディスクにおいて、
光ディスク本体に記録されたコンテンツの再生の制御に必要なディスク管理情報の内、一部又は全てのタイトルの再生の制御に必要な制御情報が、前記ディスク本体ではなく、前記無線ICタグに記録されていることを特徴とする光ディスク。 In an optical disc having a wireless IC tag,
Of the disc management information necessary for controlling playback of content recorded on the optical disc body, control information necessary for controlling playback of some or all titles is recorded on the wireless IC tag, not the disc body. An optical disc characterized by the above. 請求項１又は請求項２に記載の光ディスクに設けられた無線ICタグ内に記録された制御情報を読み出すためのリーダ装置と、
請求項１又は請求項２に記載の光ディスクのディスク本体に記録されたコンテンツを再生する再生手段と、
前記リーダ装置及び前記再生手段を制御する制御手段とを備え、
前記制御手段は、前記リーダ装置によって前記無線ICタグから読み出された前記制御情報のみに基づいて、又はこの制御情報に請求項１又は請求項２に記載の光ディスクのディスク本体から読みだしたディスク管理情報を加えた情報に基づいて、前記再生手段によるコンテンツの再生を制御するようにしたことを特徴とする光ディスク再生装置。 A reader device for reading control information recorded in a wireless IC tag provided on the optical disc according to claim 1 or 2,
Reproducing means for reproducing the content recorded on the disc main body of the optical disc according to claim 1 or 2,
Control means for controlling the reader device and the reproduction means,
3. The disc read from the disc main body of the optical disc according to claim 1 or 2 based on only the control information read from the wireless IC tag by the reader device or to the control information. An optical disc reproducing apparatus, wherein reproduction of contents by the reproducing means is controlled based on information to which management information is added. 無線ICタグを有する光ディスクにおいて、
無線ICタグのリーダ装置を有しない光ディスク再生装置で再生可能なタイトル以外の、追加のタイトルの再生に必要なキー情報の一部が、前記無線ICタグに記録されていることを特徴とする光ディスク。 In an optical disc having a wireless IC tag,
An optical disc characterized in that a part of key information necessary for reproducing an additional title other than a title that can be reproduced by an optical disc reproducing device not having a reader device for the wireless IC tag is recorded on the wireless IC tag. . 請求項４に記載の光ディスクに設けられた無線ICタグからキー情報の一部を読み出すためのリーダ装置と、
請求項４に記載の光ディスクのディスク本体に記録されたコンテンツを再生する再生手段と、
前記リーダ装置及び前記再生手段を制御する制御手段とを備え、
前記制御手段は、前記リーダ装置によって複数の前記光ディスクの無線ICタグから読み出されたキー情報の一部を組合わせて、キー情報を生成し、このキー情報が正当な場合に限り、無線ICタグのリーダ装置を有しない光ディスク再生装置で再生可能なタイトル以外の、追加のタイトルを再生することができるようにしたことを特徴とする光ディスク再生装置。 A reader device for reading a part of the key information from the wireless IC tag provided on the optical disc according to claim 4;
Reproducing means for reproducing the content recorded on the disc body of the optical disc according to claim 4;
Control means for controlling the reader device and the reproduction means,
The control means generates a key information by combining a part of the key information read from the wireless IC tags of the plurality of optical disks by the reader device, and only when the key information is valid, the wireless IC An optical disc reproducing apparatus characterized in that an additional title other than a title that can be reproduced by an optical disc reproducing apparatus having no tag reader device can be reproduced.
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