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1. US20120254926 - CONTENT DISTRIBUTION SYSTEM, CONTENT DISTRIBUTION DEVICE, CONTENT PLAYBACK TERMINAL, AND CONTENT DISTRIBUTION METHOD

官庁 アメリカ合衆国
出願番号 13515314
出願日 13.12.2010
公開番号 20120254926
公開日 04.10.2012
公報種別 A1
IPC
H04N 21/20
H電気
04電気通信技術
N画像通信,例.テレビジョン
21選択的なコンテンツ配信,例.双方向テレビジョンまたはビデオオンデマンド[2011.01]
20コンテンツの配信に特に適合したサーバ,例.VODサーバ;それらの操作
CPC
H04N 21/4331
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
43Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
433Content storage operation, e.g. storage operation in response to a pause request, caching operations
4331Caching operations, e.g. of an advertisement for later insertion during playback
H04N 21/47202
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
40Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
47End-user applications
472End-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
47202for requesting content on demand, e.g. video on demand
H04N 21/6543
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
60Network 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 
65Transmission of management data between client and server
654Transmission by server directed to the client
6543for forcing some client operations, e.g. recording
H04N 21/8456
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
80Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
83Generation or processing of protective or descriptive data associated with content; Content structuring
845Structuring of content, e.g. decomposing content into time segments
8456by decomposing the content in the time domain, e.g. in time segments
出願人 Takahashi Maki
Seki Yoshinori
発明者 Takahashi Maki
Seki Yoshinori
優先権情報 2009284284 15.12.2009 JP
発明の名称
(EN) CONTENT DISTRIBUTION SYSTEM, CONTENT DISTRIBUTION DEVICE, CONTENT PLAYBACK TERMINAL, AND CONTENT DISTRIBUTION METHOD
要約
(EN)

In a content distribution system, a content distribution device performs on-demand distribution of video content to a content playback terminal via a network. Before a user plays back video content from a distribution menu, the content playback terminal preliminarily receives from the content distribution device, the distributed video content to which cache control information is added, and then writes the received video content in a temporal storage device included therein. If video content selected by the user is present in the temporal storage device, that video content is played back. On the other hand, if the selected video content is not present in the temporal storage device, a distribution request for the selected video content is made to the content distribution device.

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