JP5767679B2 - データストリームの事前認証と処理の方法、装置およびシステム - Google Patents
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- G09G5/006—Details of the interface to the display terminal
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- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/0876—Network architectures or network communication protocols for network security for authentication of entities based on the identity of the terminal or configuration, e.g. MAC address, hardware or software configuration or device fingerprint
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- G11B20/0021—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier
- G11B20/0042—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the copy protection scheme being related to a specific access protection standard
- G11B20/00463—Circuits for prevention of unauthorised reproduction or copying, e.g. piracy involving encryption or decryption of contents recorded on or reproduced from a record carrier the copy protection scheme being related to a specific access protection standard high-bandwidth digital content protection [HDCP]
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- H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
- H04N21/4408—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving video stream encryption, e.g. re-encrypting a decrypted video stream for redistribution in a home network
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- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
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Description
本特許出願は、2008年2月28日出願の米国仮特許出願第61/032,424号の優先権を主張する。
Claims (19)
- ポートの事前認証のための方法であって、
ロービング受信機及びHigh−Definition Content Protection(HDCP)エンジンを、複数の入力ポートのうちの使用されていない入力ポートに接続する処理と、
ビデオの存在をモニタリングする処理と、
前記ロービング受信機によって提供される、ビデオフレーム境界についての情報に従って、前記ビデオフレーム境界にフェーズロック(PLL)を一致させる処理と、
フレームが暗号化されていることを示す前記ロービング受信機からの指示を待つ処理と、
前記ロービング受信機を前記使用されていない入力ポートと非接続にして、前記複数のポートのうち別のポートに接続できるようにする処理と、
前記PLLが提供する情報のみを用いて各ビデオフレームのビデオフレーム数をカウントする処理と、
が実行される方法。 - 前記使用されていない入力ポートを再接続する処理を更に含む、請求項1に記載の方法。
- 前記使用されていない入力ポートが非接続中にHDCPの再認証の試みがあった場合は、当該使用されていない入力ポートのHDCPの再認証を実行する処理を更に行う、請求項2に記載の方法。
- 前記ビデオの存在及びフレームレートにおける変更をモニタリングする処理と、
変更が発生した場合はHDCP認証を実行し、変更が発生しない場合は前記ビデオフレーム境界に前記PLLを一致させる処理とを更に含み、
前記モニタリングする処理は前記ロービング受信機を介して実行され、前記HDCP認証は前記HDCPエンジンを介して実行される、請求項2に記載の方法。 - ロービング受信機を未使用の入力ポートに接続することは、優先順位付けによって決定される、請求項1に記載の方法。
- 前記優先順位付けは、ビデオの存在に基づき優先順位を変更することを通じて決定される、請求項5に記載の方法。
- 前記優先順位付けは、更に、HDCPが使用されているか否かに基づき優先順位を変更することを通じて決定される、請求項6に記載の方法。
- 前記優先順位付けは、更に、ユーザの通常のパターンに応じて優先順位を変更することを通じて決定される、請求項6に記載の方法。
- ポートの事前認証のためのシステムであって、メディアコンテンツのシームレスな通信を円滑に行うためにメディアコンテンツを事前認証する事前認証メカニズムを有し、
前記事前認証メカニズムは、
ロービング受信機及びHigh−Definition Content Protection(HDCP)エンジンを、複数の入力ポートのうちの使用されていない入力ポートに接続すること、
ビデオの存在をモニタリングすること、
前記ロービング受信機によって提供される、ビデオフレーム境界についての情報に従って、前記ビデオフレーム境界にフェーズロック(PLL)を一致させること、
フレームが暗号化されていることを示す前記ロービング受信機からの指示を待つこと、
前記ロービング受信機を前記使用されていない入力ポートと非接続にして、前記複数のポートのうち別のポートに接続できるようにすること、
前記PLLが提供する情報のみを用いて各ビデオフレームのビデオフレーム数をカウントすること、
を含む1以上のオペレーションを実行する、ことを特徴とするシステム。 - 前記使用されていない入力ポートを再接続することを更に含む、請求項9に記載のシステム。
- 前記使用されていない入力ポートが非接続中にHDCPの再認証の試みがあった場合は、当該使用されていない入力ポートのHDCPの再認証を実行することを更に含む、請求項10に記載のシステム。
- 前記ビデオの存在及びフレームレートにおける変更をモニタリングすること、
変更が発生した場合はHDCP認証を実行し、変更が発生しない場合は前記ビデオフレーム境界に前記PLLを一致させることを更に含み、
前記モニタリングする処理は前記ロービング受信機を介して実行され、前記HDCP認証は前記HDCPエンジンを介して実行される、請求項10に記載のシステム。 - ロービング受信機を未使用の入力ポートに接続することは、優先順位付けによって決定される、請求項9に記載のシステム。
- 前記優先順位付けは、ビデオの存在に基づき優先順位を変更することを通じて決定される、請求項13に記載のシステム。
- 前記優先順位付けは、更に、HDCPが使用されているか否かに基づき優先順位を変更することを通じて決定される、請求項14に記載のシステム。
- 前記優先順位付けは、更に、ユーザの通常のパターンに応じて優先順位を変更することを通じて決定される、請求項14に記載のシステム。
- 受信デバイスとの間でメディアコンテンツを通信する送信デバイスと、
請求項9〜16の何れか1項に記載の事前認証メカニズムを有する前記受信デバイスと、
を備えた装置。 - 前記事前認証メカニズムは、更に、
ポート切替えが完了した後、動作中デバイスを非動作に再び切替え、当該切替えられた非動作中デバイスを再認証する、請求項17に記載の装置。 - 識別されたロービングポートの事前認証は、他のロービングポートが非動作中のままで且つメインポートが動作中ポートとして機能しながら、同時に実行される、請求項18に記載の装置。
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US12/392,000 | 2009-02-24 | ||
US12/392,000 US9143507B2 (en) | 2008-02-28 | 2009-02-24 | Method, apparatus, and system for pre-authentication and processing of data streams |
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JP2010548881A Division JP5410452B2 (ja) | 2008-02-28 | 2009-02-26 | データストリームの事前認証と処理の方法、装置およびシステム |
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JP2014075803A JP2014075803A (ja) | 2014-04-24 |
JP5767679B2 true JP5767679B2 (ja) | 2015-08-19 |
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JP2010548882A Active JP5719597B2 (ja) | 2008-02-28 | 2009-02-26 | メディアコンテンツストリームを暗号解読するための方法、装置およびシステム |
JP2010548881A Active JP5410452B2 (ja) | 2008-02-28 | 2009-02-26 | データストリームの事前認証と処理の方法、装置およびシステム |
JP2013230239A Active JP5767679B2 (ja) | 2008-02-28 | 2013-11-06 | データストリームの事前認証と処理の方法、装置およびシステム |
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JP2010548881A Active JP5410452B2 (ja) | 2008-02-28 | 2009-02-26 | データストリームの事前認証と処理の方法、装置およびシステム |
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EP (2) | EP2272251B1 (ja) |
JP (3) | JP5719597B2 (ja) |
KR (2) | KR101499925B1 (ja) |
CN (2) | CN101960839B (ja) |
AT (1) | ATE533301T1 (ja) |
TW (2) | TWI444045B (ja) |
WO (2) | WO2009108818A1 (ja) |
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US9143507B2 (en) | 2015-09-22 |
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EP2274907B1 (en) | 2012-12-19 |
CN101960839A (zh) | 2011-01-26 |
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