JP2009533997A - ハイブリッドなユニキャスト・マルチキャストデータ配信 - Google Patents
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- H04N7/162—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing
- H04N7/163—Authorising the user terminal, e.g. by paying; Registering the use of a subscription channel, e.g. billing by receiver means only
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- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
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- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
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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
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- 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
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- H—ELECTRICITY
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- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
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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
- H04N21/65—Transmission of management data between client and server
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N7/00—Television systems
- H04N7/16—Analogue secrecy systems; Analogue subscription systems
- 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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- H—ELECTRICITY
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- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/60—Network streaming of media packets
- H04L65/61—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio
- H04L65/611—Network streaming of media packets for supporting one-way streaming services, e.g. Internet radio for multicast or broadcast
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- Human Computer Interaction (AREA)
- Library & Information Science (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Abstract
Description
上述のように、典型的なケーブルシステムおよび衛星システムにおけるテレビチャンネルへの提供物の広さと厚さは、非常に大きい。事実、受信加入者にとって、電子番組ガイド(EPG)の助けなしに利用可能なチャンネルを検索することは気力を削ぎ、不満が残る課題である。クライアント機器でEPGを操作するために、クライアント機器は適正な現在のEPGデータにアクセスする。このEPGデータは、クライアント機器にサーバから配信される。
図1は、クライアント106およびサーバ102を有する、ハイブリッドなユニキャスト・マルチキャストデータ配信を実施できるテレビ環境例100のブロック図である。図示されるように、テレビ環境100は、サーバ102、1つまたは複数のネットワーク104、およびクライアント106を含む。サーバ102は、テレビ情報108を含む。テレビ情報108は、テレビ(TV)メタデータ110およびTVメディアデータ112を含む。クライアント106は、テレビ情報108およびTVメタデータモジュール114を含む。
図2は、ハイブリッドなユニキャスト・マルチキャストデータ配信と連動して実行できる、サービス情報区分例208および電子番組ガイド区分例210を説明するブロック図200である。サービス情報区分208は、チャンネルによる区分例を図解している。EPG区分210は、時間による区分例を図解している。
図6は、ハイブリッドなユニキャスト・マルチキャストデータ配信と連動して利用できる機器602の例のブロック図である。例えば、機器602は、(図1の)クライアント106またはサーバ102でよい。ある実装例では、機器602はネットワーク104などの1つまたは複数のネットワーク614で通信することができる。図解するように、2個の機器602(1)および602(d)が、ネットワーク614を介して交信することができる。該交信の例には、マルチキャスト通信116(M)および/またはユニキャスト通信116(U)でのTVメタデータ110の送信が含まれる。
Claims (20)
- 適合性の高いテレビメタデータの要求を送信することと、
ユニキャストバーストを介して前記適合性の高いテレビメタデータを受信することと、
マルチキャストストリームを介してテレビメタデータを受信することと、
から成る動作を実行するように構成されるクライアント機器であって、
前記マルチキャストストリームが、繰り返しカルーセル方式のテレビメタデータを備えることを特徴とするクライアント機器。 - 前記適合性の高いテレビメタデータが、多数のテレビチャンネルに関するサービス情報を備えることを特徴とする請求項1に記載のクライアント機器。
- 前記適合性の高いテレビメタデータが、所定の適合性の高い期間のための電子番組ガイド(EPG)データを備えることを特徴とする請求項1に記載のクライアント機器。
- 前記適合性の高いテレビメタデータを処理することと、
1つまたは複数のユーザ命令に応答して、前記処理された適合性の高いテレビメタデータの少なくとも一部を利用することと、
から成るさらなる動作を実行するように構成されることを特徴とする請求項1に記載のクライアント機器。 - 利用される前記処理された適合性の高いテレビメタデータの一部が、合致するバージョンを有するテレビメタデータが前記マルチキャストストリーム内の前記繰り返しカルーセル方式のテレビメタデータの一部として受信されるより前に、利用されることを特徴とする請求項4に記載のクライアント機器。
- 前記適合性の高いテレビメタデータが前記マルチキャストストリームを介して受信されると、前記適合性の高いテレビメタデータを前記繰り返しカルーセル方式のテレビメタデータと混合すること、
から成るさらなる動作を実行するように構成されることを特徴とする請求項1に記載のクライアント機器。 - 前記混合動作が実行されると、前記クライアント機器のユーザに漸次多くのテレビ機能を提供すること、
から成るさらなる動作を実行するように構成されることを特徴とする請求項6に記載のクライアント機器。 - クライアント機器から適合性の高いテレビメタデータの要求を受信するステップと、
適合性の高いテレビメタデータバーストを決定するステップと、
前記受信に応答して、前記適合性の高いテレビメタデータバーストを前記クライアント機器へユニキャスト通信を介して送信するステップと、
テレビメタデータストリームを前記クライアント機器へマルチキャスト通信を介して送信するステップと、
を含むことを特徴とするサーバの方法。 - 前記要求が、適合性の高いテレビメタデータ期間を含み、
前記決定するステップが、前記適合性の高いテレビメタデータ期間に基づいて前記適合性の高いテレビメタデータバーストを決定すること、
を含むことを特徴とする請求項8に記載の方法。 - 前記適合性の高いテレビメタデータバーストが、多数のそれぞれのネットワークロケーションおよび多数のそれぞれのテレビチャンネルのビットレートの対を含むサービス情報を含むことを特徴とする請求項8に記載の方法。
- 前記適合性の高いテレビメタデータバーストが、適合性の高いEPG期間に対応する電子番組ガイド(EPG)データを含むことを特徴とする請求項8に記載の方法。
- 前記決定するステップが、所定の適合性の高いテレビメタデータ期間に基づいて、時が来ると前記適合性の高いテレビメタデータバーストを繰り返し決定することを含むことを特徴とする請求項8に記載の方法。
- 前記決定が、電子番組ガイド(EPG)の最小の時間粒度に対応した間隔で繰り返されることを特徴とする請求項12に記載の方法。
- 前記受信に応答して、前記適合性の高いテレビメタデータバーストを前記クライアント機器へユニキャスト通信を介して送信する前記ステップが、第1の通信チャンネルを利用して前記適合性の高いテレビメタデータバーストを前記クライアント機器へ前記ユニキャスト通信を介して送信することと、
テレビメタデータストリームを前記クライアント機器へマルチキャスト通信を介して送信する前記ステップが、第2の異なる通信チャンネルを利用して前記テレビメタデータストリームを前記クライアント機器へマルチキャスト通信を介して送信することと、
を特徴とする請求項8に記載の方法。 - 電子番組ガイド(EPG)データを有する媒体と、
前記EPGデータを少なくとも適合性の高いEPG期間に区分して、前記適合性の高いEPG期間に対応する適合性の高いEPGデータを抽出するテレビメタデータセグメンタと、
それぞれの適合性の高いEPGデータバーストを、それぞれのユニキャスト通信を介して多数のクライアントのそれぞれに送信し、EPGデータストリームを、前記多数のクライアントへマルチキャスト通信を介して送信するテレビメタデータディセミネータと、
を備えることを特徴とするサーバ機器。 - 前記サーバ機器が、テレビシステムのヘッドエンドの少なくとも一部を備えることを特徴とする請求項15に記載のサーバ機器。
- 前記それぞれのユニキャスト通信が、前記多数のクライアントのそれぞれからの、多数のそれぞれの適合性の高いEPGデータ要求の受信に応答して、前記多数のクライアントのそれぞれへ送信されることを特徴とする請求項15に記載のサーバ機器。
- 前記多数のクライアントへ前記マルチキャスト通信を介して送信された前記EPGデータストリームが、繰り返しカルーセル方式のEPGデータから成ることを特徴とする請求項15に記載のサーバ機器。
- 各適合性の高いEPGデータバーストが、現在時間から開始し適合性の高いEPG期間の終了まで拡大するEPGデータの一部から成ることを特徴とする請求項18に記載のサーバ機器。
- 前記媒体が、多数のテレビチャンネルのサービス情報(SI)を有することと、
前記テレビメタデータディセミネータが、SIを前記多数のクライアントのそれぞれへ前記それぞれのユニキャスト通信を介して送信することと、
を特徴とする請求項15に記載のサーバ機器。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US11/379,042 US20070244982A1 (en) | 2006-04-17 | 2006-04-17 | Hybrid Unicast and Multicast Data Delivery |
PCT/US2007/006396 WO2007133327A1 (en) | 2006-04-17 | 2007-03-13 | Hybrid unicast and multicast data delivery |
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JP2009533997A5 JP2009533997A5 (ja) | 2010-04-02 |
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US (1) | US20070244982A1 (ja) |
EP (1) | EP2008406A4 (ja) |
JP (1) | JP2009533997A (ja) |
CN (1) | CN101421987B (ja) |
BR (1) | BRPI0709991A2 (ja) |
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Also Published As
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BRPI0709991A2 (pt) | 2011-08-02 |
US20070244982A1 (en) | 2007-10-18 |
EP2008406A1 (en) | 2008-12-31 |
CN101421987B (zh) | 2012-10-17 |
CN101421987A (zh) | 2009-04-29 |
WO2007133327A1 (en) | 2007-11-22 |
EP2008406A4 (en) | 2009-12-30 |
MX2008012379A (es) | 2008-10-09 |
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