JP4409946B2 - スクランブルされたデータに対するアクセスを制御するためのリモート管理用対話型プロトコル - Google Patents
スクランブルされたデータに対するアクセスを制御するためのリモート管理用対話型プロトコル Download PDFInfo
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- JP4409946B2 JP4409946B2 JP2003537318A JP2003537318A JP4409946B2 JP 4409946 B2 JP4409946 B2 JP 4409946B2 JP 2003537318 A JP2003537318 A JP 2003537318A JP 2003537318 A JP2003537318 A JP 2003537318A JP 4409946 B2 JP4409946 B2 JP 4409946B2
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Description
アクセス権の管理から独立しているが、関連している商業的管理動作、
アクセス制御モジュールのセキュリティプロセッサ内に入力されているアクセス権に応じたアクセス制御モジュール内に組み込まれたトークンホルダ又はこれに類似するものの管理などの商業的動作、
或いは、アクセス権の制御(又は、例えば、認可された加入ユーザーの振る舞いに関連して入力されたアクセス権の最適化管理)、
或いは、ECM及びEMMメッセージ間のリンクを提供する動作と暗号化された情報用の安全な管理動作を通じたセキュリティプロセッサとスクランブル解除端末間におけるメッセージ交換のローカルセキュリティの管理、
に利用可能であることに留意されたい。
A=BC(要素Aは、要素B及びCのシーケンスから構成されている)、
A=(B)+(要素Aは、1〜n個の要素Bから構成されている)、
A=(B)*(要素Aは、0〜n個の要素Bから構成されている)、
A=B|C(要素Aは、要素B又は要素Cから構成されている)、
A=B[C](要素Aは、要素Bと、これに続くオプションの要素Cから構成されている)、
A=−(要素は、なにも有していない)という
BNF(Backus-Naur-From)の形態に類似したメタ言語的記述表記法を使用し、コマンドメッセージと応答メッセージの一般的な構造の例について説明する。
コマンドメッセージは、入力テンプレートと、オプションにより、応答テンプレートを有している。このオプションの応答テンプレートは、応答に適用されるセキュリティメカニズムを記述するものである。
入力テンプレートG'Eには、応答に存在する応答適用可能データに適用されるセキュリティ属性が含まれている。このテンプレートが存在しない場合には、これは、その適用可能データに対して、なんらのセキュリティ対策も施されていないことを示している。
応答に状態STしか含まれていない場合には、メッセージが解釈不能であったことを示しており、
メッセージが処理された場合には、応答には、応答適用可能データと状態STが含まれている。
応答テンプレートがコマンドメッセージMC内に指定されていない場合には、応答には、なんらのセキュリティメカニズムも適用されず、
−なんらのテンプレートも応答メッセージMR内に提供されず、
−応答適用可能データは、応答メッセージMRにおいてスクランブルされていない状態であり、
−データには、なんらの信頼性も付加されない。
コマンドメッセージ及び応答メッセージの構造は、それぞれ、表T6に示されているように、以下のとおりである。
−機密データ及び/又は暗号化されたデータを含むメッセージは、そのメッセージの信頼性を保持するべく、入力テンプレートを、必ず含まねばならない。
−受信者によって(即ち、アクセス制御モジュールのセキュリティプロセッサ又はスクランブル解除端末Tによって)連続的に処理される動作又は動作のリストと、
−又は、検証の2値の結果(真又は偽)により、受信者が順番に処理する動作の条件付分岐を実現可能な条件の論理的な組み合わせと、
が含まれていることが分かる。
If:
Then:
Else:
を含むことができることに留意されたい。
−コマンドにおいて要求されるそれぞれの動作ごとの
−コマンド構造の反復、コマンドにおいて要求される動作の反復、
−コマンド内のそれぞれの動作によって要求される情報の記述(この情報は、カード又は端末によって提供される)、
−動作の実行について放送装置Eに通知するためのそれぞれの動作に関する報告
が含まれている。
−条件の組み合わせを伴わない条件付メッセージ内に存在する、単一の主メッセージブロック又は動作、或いは
−実行された(又は、実行されていない)コマンド内に存在するThen及び/又はElseブロック、
−1つ又は複数のブロックのそれぞれの動作によって要求される情報の記述(この記述は、アクセス制御カード又はモジュール又はスクランブル解除端末Tによって提供される)、
−動作の実行結果について放送装置Eに通知するための1つ又は複数のブロックによるそれぞれの動作に関する報告
が含まれている。
−コンサルト(consult)01又は更新オブジェクト02であってよい。(01及び02はオブジェクトを表している)
−制御される動作01又は02が検証された場合に、03を暗号解読してよい。ここで、03は、一例として(但し、限定を意図するものではない)、制御ワードCWの暗号文(即ち、操作キーSOKを使用して暗号化された制御ワードCW)を表している。
Claims (23)
- サービスキーによってスクランブルされ、放送センタと少なくとも1の受像機間のネットワークにおいて伝送される情報に対するアクセスを制御するためのリモート管理アクセス制御のための方法において、
前記スクランブルされた情報の伝送には、少なくとも前記サービスキーを含む制御ワード(CW)が付加されており、この制御ワードは、操作キー(SOK)を使用して暗号化され、該暗号化された制御ワードの伝送は、少なくとも前記暗号化された制御ワード及びアクセス権制御パラメータを含むアクセス権制御メッセージ(ECMメッセージ)によって実行され、該ECMメッセージは、前記スクランブルされた情報のフローにおいて、アクセス権管理メッセージ(EMMメッセージ)と多重送信され、
それぞれの受像機は、セキュリティプロセッサを備えるアクセス制御モジュールを有する前記スクランブルされた情報用の少なくとも1のスクランブル解除端末を有し、
前記セキュリティプロセッサは、このセキュリティプロセッサの、保護されているメモリ内に保存された前記操作キー(SOK)及び加入ユーザーに割り当てられた登録されたアクセス権を有すると共に、
アクセス権制御パラメータに基づいて前記登録されたアクセス権を検証して、前記操作キー及び前記暗号化された制御ワードから、前記サービスキーを回復することを可能にし、それぞれのスクランブル解除端末は、認可された加入ユーザーが使用できるように、前記回復されたサービスキーを使って前記スクランブルされた情報をスクランブル解除することを可能にするアクセス制御のための方法であって、
少なくとも、
(1)前記放送センタから少なくとも1の受像機及び/又はこれに関連する前記セキュリティプロセッサにコマンドメッセージを送信するステップであって、前記コマンドメッセージは、少なくとも1の入力テンプレート、コマンド適用可能データ、及び信頼性データを形成するデータフィールドを有し、前記入力テンプレートには、前記コマンド適用可能データに適用されたセキュリティ属性が含まれており、前記信頼性データにより、前記セキュリティ属性から前記コマンドメッセージの完全性を認証及び保証することができることを特徴とするコマンドメッセージを送信するステップと、
(2)少なくとも1の動作命令の実行により構成される一連のタスクを安全な方法で実行するべく、前記スクランブル解除端末/セキュリティプロセッサのインターフェイスにおけるローカルな視聴に対して防御を可能にする、前記スクランブル解除端末と前記セキュリティプロセッサ間における動作命令及びこれらの動作命令に対する応答の交換が特定のローカルなプロトコールに従うステップと、
を有することを特徴とするアクセス制御のための方法。 - それぞれの受像機ステーションは、リターン経路により、前記放送センタ又は該放送センタを管理するセンタに接続されており、前記アクセス制御のための方法は、前記コマンドメッセージに固有の応答メッセージを算出し前記リターン経路によって伝送するステップをも有し、この応答メッセージは、少なくとも1の入力テンプレート、応答適用可能データ、及び状態データを形成するデータフィールドを有しており、前記入力テンプレートには、前記応答適用可能データに適用されたセキュリティ属性が含まれており、前記応答メッセージに入力テンプレートが存在しない場合には、これは、前記応答適用可能データに対してセキュリティが適用されていないことを意味していることを特徴とする請求項1記載のアクセス制御のための方法。
- それぞれのコマンドメッセージは、応答テンプレートを形成するデータフィールドをも有し、前記応答テンプレートには、前記応答適用可能データに適用される前記セキュリティ属性が含まれていることを特徴とする請求項2記載のアクセス制御のための方法。
- 前記コマンド適用可能データが暗号化されている場合に、前記暗号化されたコマンド適用可能データに対して暗号解読及び認証プロセスを適用し、前記応答適用可能データを暗号化及び認証することを特徴とする請求項2〜3の中のいずれか一項記載のアクセス制御のための方法。
- コマンドメッセージに関連し、前記コマンド適用可能データは、前記コマンドメッセージの受信者である、前記端末又は前記アセクス制御モジュールのセキュリティプロセッサによって、連続的に処理される、動作命令又は動作命令のリストを有することを特徴とする請求項2〜4の中のいずれか一項記載のアクセス制御のための方法。
- 前記コマンド及び/又は応答適用可能データはプログラム可能であって、条件の論理的な組み合わせを有しており、
その条件の論理的検証の2値の結果(真又は偽)によって複数の動作の条件付分岐を生成することができ、
前記複数の動作は、受信側スクランブル解除端末又はセキュリティプロセッサによって、連続的に処理されることを特徴とする請求項2〜4の中のいずれか一項記載のアクセス制御のための方法。 - 前記コマンドメッセージ及び前記コマンド適用可能データは、次の論理的な関係を含む構造化された論理フレーズを構成することを特徴とする請求項6記載のアクセス制御のための方法。
If(条件の論理的表現を検証する)と、
Then(検証された条件に関連する動作又はリストの動作を記述するブロック内に記載された動作又はリストの動作を実行する)と、
Else(この検証されていない条件に関連する動作又はリストの動作を記述するブロック内に記載された動作又はリストの動作を実行する)。 - 実行されないブロックも評価されることを特徴とする請求項7記載のアクセス制御のための方法。
- 前記コマンド及び/又は応答メッセージは、
−前記アクセス権管理から独立しているが、前記アクセス権管理に関係する商業的管理動作であって、前記セキュリティプロセッサ内に登録されているアクセス権に基づく前記セキュリティプロセッサ内に組み込まれた電子的トークンホルダの管理などの商業的管理動作と、
−アクセス権の制御と、
−認可された加入ユーザーの振る舞いに関連する登録されたアクセス権の最適化管理と、
−前記セキュリティプロセッサと前記スクランブル解除端末間におけるメッセージの交換のローカルセキュリティの管理と、
−ECMメッセージとEMMメッセージとの間におけるリンク動作と、
−前記スクランブルされた情報のセキュリティを管理する動作と、
に使用されることを特徴とする請求項6〜8の中のいずれか一項記載のアクセス制御のための方法。 - 少なくとも1のコマンド適用可能データのフィールドを有するコマンドメッセージの場合に、前記スクランブル解除端末及び前記セキュリティプロセッサは、暗号のための暗号化/暗号解読、演算、及び信頼性検証リソースを有し、前記特定のローカルセキュリティアクセス制御のための方法は、
・前記スクランブル解除端末において、
−前記コマンドメッセージ内の前記コマンド適用可能データに対して、前記コマンドメッセージの伝送用に以前使用された前記暗号化プロセスとは無関係のローカルな暗号化及びローカルな認証のプロセスを適用し、ローカルに保護されたコマンドデータを生成するステップと、
−前記ローカルに保護された前記コマンドデータから形成されたローカルな暗号化されたコマンドメッセージを前記セキュリティプロセッサに伝送するステップと、
・前記セキュリティプロセッサにおいて、
−前記暗号化されたローカルなコマンドメッセージに対して、ローカルな暗号解読及びローカルな認証のプロセスを適用し、前記コマンド適用可能データフィールドを回復するステップと、
−前記コマンド適用可能データフィールドに対して認証のプロセスを適用し、前記コマンド適用可能データのフィールドから少なくとも1のタスクに従って実行可能な前記一連の動作命令を回復するステップと、
−少なくとも1のタスクに従って実行可能な前記一連の動作命令を実行するステップと、
を有することを特徴とする請求項1〜9の中のいずれか一項記載のアクセス制御のための方法。 - 前記スクランブル解除端末及び前記セキュリティプロセッサは、暗号のための暗号化/暗号解読、演算、及び信頼性検証リソースを有しており、前記特定のローカルセキュリティアクセス制御のための方法は、少なくとも1のタスクに従って実行可能な少なくとも1の動作命令の実行に続いて、
・前記セキュリティプロセッサにおいて、
−少なくとも1のタスクに従って実行可能な少なくとも1の動作命令の実行から前記応答適用可能データを算出するステップと、
−ローカルに保護された応答適用可能データを生成するべく、前記応答適用可能データに対して、ローカルな暗号化及びローカルな認証を通じてそれらを保護するプロセスを適用するステップと、
−ローカルに保護された応答適用可能データを含むローカルな応答メッセージを前記スクランブル解除端末に伝送するステップと、
・前記スクランブル解除端末において、
−前記ローカルに保護された応答適用可能データに対して、ローカルな暗号解読及びローカルな認証のプロセスを適用し、前記応答メッセージを構成する前記応答適用可能データを回復するステップと、
をも有することを特徴とする請求項2〜10の中のいずれか一項記載のアクセス制御のための方法。 - 前記放送センタ又は該放送センタを管理するセンタ宛ての応答メッセージの場合に、前記応答適用可能データに対して一般的な暗号化及び認証プロセスを適用し、暗号化された応答適用可能データを生成するステップをも有し、前記ステップは、前記応答適用可能データに対してローカルな暗号化及びローカルな認証のプロセスを適用するステップを有するステップの前に、実行されることを特徴とする請求項11記載のアクセス制御のための方法。
- 前記ローカルセキュリティ用のプロセスは、フィルタリング又は再生を検出するのに使用可能な前記コマンド及び応答メッセージをインデックス付けするプロセスをも有していることを特徴とする請求項9〜12の中のいずれか一項記載のアクセス制御のための方法。
- 少なくとも1のコマンド適用可能データフィールドを有するコマンドメッセージの場合に、前記スクランブル解除端末及び前記セキュリティプロセッサは、暗号のための暗号化/暗号解読、演算、及び信頼性検証リソースを有しており、前記特定のローカルセキュリティアクセス制御のための方法は、少なくとも、
・前記セキュリティプロセッサにおいて、
−前記コマンド適用可能データに対して、それぞれ前記セキュリティプロセッサ或いは前記スクランブル解除端末に対するそれらの宛先を弁別する試験を適用するステップと、
・・スクランブルされていない状態のコマンド適用可能データが前記セキュリティプロセッサ宛ての場合には、
−少なくとも1のタスクに従って実行可能な前記一連の動作命令を実行するステップと、
・・前記スクランブルされていない状態のコマンド適用可能データが前記スクランブル解除端末宛ての場合には、
−前記コマンド適用可能データに対して、ローカルな暗号化及びローカルな認証のプロセスを適用し、ローカルに保護されたコマンド適用可能データを生成するステップと、
−前記ローカルに保護されたコマンド適用可能データを前記セキュリティプロセッサから前記スクランブル解除端末に伝送するステップと、
・前記スクランブル解除端末において、
−前記ローカルに保護されたコマンド適用可能データに対して、ローカルな暗号解読及びローカルな認証のプロセスを適用して前記コマンド適用可能データを回復し、少なくとも1のタスクに従って実行可能な前記一連の動作命令を構成するステップと、
−前記少なくとも1のタスクに従って実行な動作命令を実行するステップと、
を有することを特徴とする請求項9〜13の中のいずれか一項記載のアクセス制御のための方法。 - 前記ローカルセキュリティアクセス制御のための方法は、それぞれのスクランブル解除端末/セキュリティプロセッサのペアに固有のローカルな暗号化/暗号解読及び認証キーに基づいた対称暗号化/暗号解読によって実行され、前記ローカルな暗号化/暗号解読及び認証キーは、前記ペアにおける前記セキュリティプロセッサ及び/又は前記スクランブル解除端末に固有の機密情報からパラメータ化されることを特徴とする請求項1〜13記載のアクセス制御のための方法。
- 前記ローカルな暗号化/暗号解読及び認証キーは、定期的に変更されることを特徴とする請求項15記載のアクセス制御のための方法。
- それぞれのコマンドメッセージは、アプリケーションの状況及び該アプリケーションの状況において必要とされる情報の詳細項目に応じて、長い又は短い応答フォーマットに基づいて、前記対応する応答メッセージのフォーマットを指定するフィールドを有することを特徴とする請求項2〜16の中のいずれか一項記載のアクセス制御のための方法。
- 放送センタから少なくとも1の受像機に対して発行されるコマンドメッセージであって、この受像機は、スクランブルされた情報をスクランブル解除する少なくとも1の端末と、ローカルなスクランブル解除端末/セキュリティプロセッサリンク上におけるそれぞれローカルなコマンド及び応答メッセージの交換によって前記スクランブル解除端末と協働するセキュリティプロセッサが提供された1つのアクセス制御モジュールを有し、前記コマンドメッセージは、少なくとも、
−入力テンプレートを有する1つのデータフィールドと、
−前記ローカルコマンドメッセージを介して前記スクランブル解除端末及び/又は前記セキュリティプロセッサを制御するのに使われる1つのコマンド適用可能データフィールドと、
−信頼性データフィールドであって、前記入力テンプレートには、前記コマンド適用可能データに適用されたセキュリティ属性が含まれており、前記信頼性データにより、前記コマンドメッセージを認証することができる信頼性データフィールドと、
を有することを特徴とするコマンドメッセージを発する放送センタ。 - 応答テンプレートを形成するデータフィールドをも有し、前記応答テンプレートには、前記コマンドメッセージに応答して設定される応答適用可能データに適用されるセキュリティ属性が含まれていることを特徴とする請求項18記載のコマンドメッセージを発する放送センタ。
- 前記コマンド又は応答適用可能データは、それぞれプログラム可能であり、前記コマンド又は応答適用可能データフィールドは、それぞれ論理的な検証の2値の結果(真又は偽)によって動作の条件付分岐を実現可能な条件の論理的な組み合わせを有しており、前記動作は、それぞれ前記スクランブル解除端末及び/又は前記セキュリティプロセッサにより、或いは前記受信者である放送局により、連続的に処理されることを特徴とする請求項18又は19に記載のコマンドメッセージを発する放送センタ。
- 請求項2の方法に基づいて、これらコマンドメッセージを放送する放送センタに応答メッセージを送信するコマンドメッセージ受像機セット。
- 記録媒体上に記録され、サービスキーを使用してスクランブルされると共に放送センタと少なくとも1の受像機間のネットワークにおいて伝送される情報に対するアクセスを制御するためのリモート管理用のアクセス制御のための方法を実装するべく情報システムのコンピュータによって実行可能なプログラムであって、
それぞれの受像機は、請求項1〜17の中のいずれか一項記載のアクセス制御のための方法によって、セキュリティプロセッサを備えるアクセス制御の遠隔管理のためのプロトコールを実行するための、前記スクランブルされた情報をスクランブル解除する少なくとも1の端末を有し、
コンピュータによって実行された場合に、前記プログラムは、
(1)前記放送センタから少なくとも1の受像機及び/又はこれに関連する前記セキュリティプロセッサにコマンドメッセージを送信するステップであって、前記コマンドメッセージは、少なくとも1の入力テンプレート、コマンド適用可能データ、及び信頼性データを形成するデータフィールドを有し、前記入力テンプレートには、前記コマンド適用可能データに適用されたセキュリティ属性が含まれており、前記信頼性データにより、前記セキュリティ属性から前記コマンドメッセージの完全性を認証及び保証することができることを特徴とするコマンドメッセージを送信するステップと、
(2)少なくとも1の動作命令の実行により構成される一連のタスクを安全な方法で実行するべく、前記スクランブル解除端末/セキュリティプロセッサのインターフェイスにおけるローカルな視聴に対して防御を可能にする、前記スクランブル解除端末と前記セキュリティプロセッサ間における動作命令及びこれらの動作命令に対する応答の交換が特定のローカルなプロトコールに従うステップと、
を有するステップの管理することを特徴とするプログラム。 - 記録媒体上に記録され、サービスキーを使用してスクランブルされると共に放送センタと少なくとも1の受像機間のネットワークにおいて伝送される情報に対するアクセスを制御するためのリモート管理用のアクセス制御のための方法を実装するべく情報システムのコンピュータによって実行可能なプログラムであって、
それぞれの受像機は、請求項1〜17の中のいずれか一項記載のアクセス制御のための方法によって、セキュリティプロセッサを備えるアクセス制御の遠隔管理のためのプロトコールを実行するための、前記スクランブルされた情報をスクランブル解除する少なくとも1の端末を有し、
コンピュータによって実行された場合に、前記プログラムは、
(1)前記放送センタから少なくとも1の受像機及び/又はこれに関連する前記セキュリティプロセッサにコマンドメッセージを送信するステップであって、前記コマンドメッセージは、少なくとも1の入力テンプレート、コマンド適用可能データ、及び信頼性データを形成するデータフィールドを有し、前記入力テンプレートには、前記コマンド適用可能データに適用されたセキュリティ属性が含まれており、前記信頼性データにより、前記セキュリティ属性から前記コマンドメッセージの完全性を認証及び保証することができることを特徴とするコマンドメッセージを送信するステップと、
(2)少なくとも1の動作命令の実行により構成される一連のタスクを安全な方法で実行するべく、前記スクランブル解除端末/セキュリティプロセッサのインターフェイスにおけるローカルな視聴に対して防御を可能にする、前記スクランブル解除端末と前記セキュリティプロセッサ間における動作命令及びこれらの動作命令に対する応答の交換が特定のローカルなプロトコールに従うステップと、
を有するステップの管理することを特徴とするプログラム。
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CN112491800B (zh) * | 2020-10-28 | 2021-08-24 | 深圳市东方聚成科技有限公司 | 一种加密u盘的实时认证方法 |
WO2024035279A1 (ru) * | 2022-08-12 | 2024-02-15 | Общество с ограниченной ответственностью "Цифра" | Шифрование и дескремблирование контента сервиса виртуальных каналов |
CN115883478B (zh) * | 2023-02-21 | 2023-07-25 | 北京大学深圳研究生院 | 一种多标识网络体系中安全高效的传输控制方法及系统 |
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FR2448825A1 (fr) * | 1979-02-06 | 1980-09-05 | Telediffusion Fse | Systeme de transmission d'information entre un centre d'emission et des postes recepteurs, ce systeme etant muni d'un moyen de controle de l'acces a l'information transmise |
FR2663179B1 (fr) * | 1990-06-08 | 1992-09-11 | Matra Communication | Procede et dispositif transcontroleurs pour installation de diffusion de programmes de television a acces conditionnel. |
US6005938A (en) * | 1996-12-16 | 1999-12-21 | Scientific-Atlanta, Inc. | Preventing replay attacks on digital information distributed by network service providers |
US6246767B1 (en) * | 1995-04-03 | 2001-06-12 | Scientific-Atlanta, Inc. | Source authentication of download information in a conditional access system |
WO1998056179A1 (en) * | 1997-06-06 | 1998-12-10 | Thomson Consumer Electronics, Inc. | Conditional access system for set-top boxes |
EP0994599A4 (en) * | 1998-04-01 | 2009-06-03 | Panasonic Corp | DATA TRANSMITTING / RECEIVING METHOD, DATA TRANSMITTER, DATA RECEIVER, DATA TRANSMITTING / RECEIVING SYSTEM, AUDIOVISUAL CONTENT TRANSMITTING METHOD, AUDIOVISUAL CONTENT RECEIVING METHOD, AUDIOVISUAL CONTENT TRANSMITTER, AUDIOVISUAL CONTENT RECEIVER , AND RECORD SUPPORT |
US6697489B1 (en) * | 1999-03-30 | 2004-02-24 | Sony Corporation | Method and apparatus for securing control words |
JP2001177814A (ja) * | 1999-12-21 | 2001-06-29 | Mitsubishi Electric Corp | 限定受信システム |
US7174512B2 (en) * | 2000-12-01 | 2007-02-06 | Thomson Licensing S.A. | Portal for a communications system |
US6920000B2 (en) * | 2002-09-19 | 2005-07-19 | Hewlett-Packard Development Company, L.P. | Filter for a display system |
-
2001
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2002
- 2002-10-15 US US10/493,021 patent/US20050055551A1/en not_active Abandoned
- 2002-10-15 EP EP02795318A patent/EP1436996A1/fr not_active Withdrawn
- 2002-10-15 WO PCT/FR2002/003528 patent/WO2003034732A1/fr active Application Filing
- 2002-10-15 JP JP2003537318A patent/JP4409946B2/ja not_active Expired - Fee Related
- 2002-10-15 CN CNB028254074A patent/CN100466721C/zh not_active Expired - Fee Related
- 2002-10-15 KR KR1020047005813A patent/KR100768129B1/ko not_active IP Right Cessation
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Publication number | Publication date |
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FR2831360A1 (fr) | 2003-04-25 |
FR2831360B1 (fr) | 2004-02-06 |
EP1436996A1 (fr) | 2004-07-14 |
WO2003034732A1 (fr) | 2003-04-24 |
JP2005506770A (ja) | 2005-03-03 |
KR100768129B1 (ko) | 2007-10-18 |
KR20040054733A (ko) | 2004-06-25 |
CN100466721C (zh) | 2009-03-04 |
US20050055551A1 (en) | 2005-03-10 |
CN1605203A (zh) | 2005-04-06 |
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