JP2009532809A - ピアツーピアのビデオ・オン・デマンド技術 - Google Patents
ピアツーピアのビデオ・オン・デマンド技術 Download PDFInfo
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/234—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs
- H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams or manipulating encoded video stream scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
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- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/47—End-user applications
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- H04N21/47202—End-user interface for requesting content, additional data or services; End-user interface for interacting with content, e.g. for content reservation or setting reminders, for requesting event notification, for manipulating displayed content for requesting content on demand, e.g. video on demand
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- H04N21/20—Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/231—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion
- H04N21/23113—Content storage operation, e.g. caching movies for short term storage, replicating data over plural servers, prioritizing data for deletion involving housekeeping operations for stored content, e.g. prioritizing content for deletion because of storage space restrictions
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- H04N21/23—Processing of content or additional data; Elementary server operations; Server middleware
- H04N21/239—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests
- H04N21/2393—Interfacing the upstream path of the transmission network, e.g. prioritizing client content requests involving handling client requests
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- H04N21/4331—Caching operations, e.g. of an advertisement for later insertion during playback
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- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
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- H04N21/442—Monitoring of processes or resources, e.g. detecting the failure of a recording device, monitoring the downstream bandwidth, the number of times a movie has been viewed, the storage space available from the internal hard disk
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- H04N21/60—Network structure or processes for video distribution between server and client or between remote clients; Control signalling between clients, server and network components; Transmission of management data between server and client, e.g. sending from server to client commands for recording incoming content stream; Communication details between server and client
- H04N21/63—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing
- H04N21/632—Control signaling related to video distribution between client, server and network components; Network processes for video distribution between server and clients or between remote clients, e.g. transmitting basic layer and enhancement layers over different transmission paths, setting up a peer-to-peer communication via Internet between remote STB's; Communication protocols; Addressing using a connection between clients on a wide area network, e.g. setting up a peer-to-peer communication via Internet for retrieving video segments from the hard-disk of other client devices
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- H04N7/173—Analogue secrecy systems; Analogue subscription systems with two-way working, e.g. subscriber sending a programme selection signal
- H04N7/17309—Transmission or handling of upstream communications
- H04N7/17318—Direct or substantially direct transmission and handling of requests
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Databases & Information Systems (AREA)
- Human Computer Interaction (AREA)
- General Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Information Transfer Between Computers (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
- Telephonic Communication Services (AREA)
Abstract
Description
Claims (25)
- リクエスタからビデオ・オン・デマンド(VOD)コンテンツの要求を受信するステップと、
前記リクエスタの位置を識別するステップと、
前記リクエスタの前記位置の近くで前記VODコンテンツを所有する他の視聴者のインデックスを検索するステップと、
前記視聴者の1人または複数から前記VODコンテンツを取得するよう前記リクエスタに指示するステップと
を含む方法。 - 前記1人または複数の他の視聴者の1人が、前記VODコンテンツが前記リクエスタに取得されたことを報告すると、前記リクエスタの請求イベントを記録するステップをさらに含む、請求項1に記載の方法。
- 前記リクエスタに前記VODコンテンツを配信する目的で、前記リクエスタと前記1人または複数の他の視聴者の1人との間のピアツーピア接続を促進するステップをさらに含む、請求項1に記載の方法。
- 識別するステップが、前記リクエスタと関連するインターネット・プロトコル(IP)アドレスおよび前記リクエスタのアカウントと関連する請求先住所のうちの少なくとも1つに応じて前記位置を特定するステップをさらに含む、請求項1に記載の方法。
- 前記要求を受信する前に、前記1人または複数の視聴者のセット・トップ・ボックスに前記VODコンテンツをプッシュするステップをさらに含む、請求項1に記載の方法。
- プッシュするステップが、前記VODコンテンツを暗号化するステップをさらに含み、前記VODコンテンツを再生するためのアクセスは、固有のライセンス・キーを用いて可能になる、請求項5に記載の方法。
- 指示するステップが、前記リクエスタに固有のライセンス・キーを配信するステップをさらに含み、少なくとも前記1人または複数の他の視聴者の1人には、前記VODコンテンツを再生するための前記固有のライセンス・キーがない、請求項1に記載に方法。
- ビデオ・オン・デマンド(VOD)コンテンツおよび特定のVODコンテンツを自身のセット・トップ・ボックス(STB)に積極的に所有する視聴者を識別するインデックスを生成するステップと、
前記1つまたは複数のSTBから直接前記特定のVODコンテンツのリクエスタへの前記特定のVODコンテンツのピアツーピア(P2P)接続を促進する目的で、前記リクエスタに前記STBの1つまたは複数の識別子を供給する前記インデックスを管理するステップとを含み、前記インデックスがさらに前記STBのそれぞれの地理的位置を含む方法。 - リクエスタがP2P接続を介して前記特定のVODコンテンツを正常に入手したことを示す、前記1つまたは複数のSTBから受信したイベントを追跡するステップをさらに含む、請求項8に記載の方法。
- 生成するステップが、前記STBのそれぞれの地理的プロファイル情報を前記インデックスの中に保有するステップをさらに含む、請求項8に記載の方法。
- 管理するステップが、前記地理的プロファイル情報に対する前記リクエスタの地理的位置に応じて、前記1つまたは複数のSTBの前記識別情報を選択するステップをさらに含む、請求項10に記載の方法。
- 管理するステップが、前記1つまたは複数のSTBの1つとのP2P接続を介して以前に入手された前記特定のVODコンテンツを再生するために使用することができるライセンス・キーを、前記リクエスタに配信するステップをさらに含む、請求項8に記載の方法。
- 管理するステップが、ポリシーに応じていくつかの前記STBに前記特定のVODコンテンツを削除するよう指示するステップをさらに含む、請求項8に記載の方法。
- 命令を組み込まれた機械アクセス可能な媒体であって、前記命令が機械にアクセスされると、
リクエスタから、前記リクエスタと関連する地理的近接性の値に応じて生成されたビデオ・オン・デマンド(VOD)コンテンツの要求を受信するステップと、
前記リクエスタとピアツーピア(P2P)接続を確立するステップと、
前記P2P接続を通じて前記リクエスタに前記VODコンテンツを配信するステップと、
前記VODコンテンツが前記P2P接続を通じて前記リクエスタに配信されるとVODコンテンツのサーバに通知を送信するステップと
の方法を実行する媒体。 - 前記VODコンテンツのサーバから受信した命令に応じて、前記VODコンテンツを削除する命令をさらに含む、請求項14に記載の媒体。
- 前記リクエスタが、前記VODコンテンツを入手するためのキーを提示することを確実にするための命令をさらに含み、前記リクエスタは、前記P2P接続の前に前記VODコンテンツのサーバから前記キーを入手した、請求項14に記載の媒体。
- 送信するステップが、前記通知の中で前記リクエスタと、前記VODコンテンツが前記P2P接続を通じて前記リクエスタに配信された日時とを確認するステップをさらに含む、請求項14に記載の媒体。
- 配信するステップが、前記P2P接続の間前記リクエスタに前記VODコンテンツを流すステップをさらに含む、請求項14に記載の媒体。
- 前記VODコンテンツが前記P2P接続を通じて前記リクエスタに配信される前に、前記VODコンテンツのサーバから確認を要求するステップをさらに含む、請求項14に記載の方法。
- ビデオ・オン・デマンド(VOD)コンテンツを含むリポジトリを有するメモリと、
最初に前記VODコンテンツを加入者と関連する1つまたは複数のセット・トップ・ボックス(STB)に配信するVOD配信サービス要素であって、前記1つまたは複数のSTBの識別情報を管理して、これらの識別情報を前記VODコンテンツを求める他の加入者からのその後の要求に応じて選択的に配信し、前記他の加入者はその後に前記STBとのP2P接続を介して前記VODコンテンツを入手するVOD配信サービス要素と、
を含むシステム。 - 前記VOD配信サービス要素によって管理され、前記STBのそれぞれおよびその後に前記VODコンテンツを要求する前記他の加入者の地理的プロファイル情報を含むVODインデックスをさらに含む、請求項20に記載のシステム。
- 前記VOD配信サービス要素が、前記STBのそれぞれに前記VODコンテンツの保有ポリシーを実施し、かつ前記保有ポリシーに応じて前記STBの選択したものに前記VODコンテンツを削除するよう指示する、請求項20に記載のシステム。
- 前記VOD配信サービス要素が、最初に前記VODコンテンツを暗号化されたフォーマットで配信し、前記暗号化されたフォーマットは、前記VODコンテンツを再生するためのライセンス・キーを用いて復号化される、請求項20に記載のシステム。
- いくつかの前記STBに前記ライセンス・キーがない、請求項23に記載のシステム。
- 前記VOD配信サービス要素が、前記VODコンテンツの要求に応じて前記他の加入者に前記ライセンス・キーを配信する、請求項23に記載のシステム。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/399,582 US8707375B2 (en) | 2006-04-05 | 2006-04-05 | Peer-to-peer video on demand techniques |
PCT/US2007/008679 WO2007117658A2 (en) | 2006-04-05 | 2007-04-05 | Peer-to-peer video on demand techniques |
Publications (1)
Publication Number | Publication Date |
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JP2009532809A true JP2009532809A (ja) | 2009-09-10 |
Family
ID=38581673
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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JP2009504338A Pending JP2009532809A (ja) | 2006-04-05 | 2007-04-05 | ピアツーピアのビデオ・オン・デマンド技術 |
Country Status (7)
Country | Link |
---|---|
US (4) | US8707375B2 (ja) |
EP (1) | EP2008455A4 (ja) |
JP (1) | JP2009532809A (ja) |
KR (1) | KR20090057938A (ja) |
CN (1) | CN101438589A (ja) |
CA (1) | CA2646920A1 (ja) |
WO (1) | WO2007117658A2 (ja) |
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WO2007117658A3 (en) | 2008-04-03 |
US8707375B2 (en) | 2014-04-22 |
US20140189762A1 (en) | 2014-07-03 |
US20160373822A1 (en) | 2016-12-22 |
CN101438589A (zh) | 2009-05-20 |
CA2646920A1 (en) | 2007-10-18 |
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