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1. US20110249126 - Digital broadcast reception device, digital broadcast reception method and program

官庁 アメリカ合衆国
出願番号 13139357
出願日 25.12.2009
公開番号 20110249126
公開日 13.10.2011
特許番号 08379156
特許付与日 19.02.2013
公報種別 B2
IPC
H04N 5/50
H電気
04電気通信技術
N画像通信,例.テレビジョン
5テレビジョン方式の細部
44受信機回路
50同調指示器;自動同調制御
H04N 5/44
H電気
04電気通信技術
N画像通信,例.テレビジョン
5テレビジョン方式の細部
44受信機回路
CPC
H04N 21/23424
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
21Selective content distribution, e.g. interactive television or video on demand [VOD]
20Servers specifically adapted for the distribution of content, e.g. VOD servers; Operations thereof
23Processing of content or additional data; Elementary server operations; Server middleware
234Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs
23424involving splicing one content stream with another content stream, e.g. for inserting or substituting an advertisement
H04N 5/50
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
NPICTORIAL COMMUNICATION, e.g. TELEVISION
5Details of television systems
44Receiver circuitry ; for the reception of television signals according to analogue transmission standards;
50Tuning indicators; Automatic tuning control
H04N 21/4384
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
438Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
4383Accessing a communication channel
4384involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
H04N 21/44016
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
44Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream, rendering scenes according to MPEG-4 scene graphs
44016involving splicing one content stream with another content stream, e.g. for substituting a video clip
出願人 Nakamura Koji
Panasonic Corporation
Oka Toshio
発明者 Nakamura Koji
Oka Toshio
代理人 Greenblum & Bernstein, P.L.C.
優先権情報 2008331458 25.12.2008 JP
発明の名称
(EN) Digital broadcast reception device, digital broadcast reception method and program
要約
(EN)

Disclosed are a digital broadcast reception device, a digital broadcast reception method and a program that shorten the period during which display is not possible that occurs when channels are switched. The digital broadcast reception device (100) is provided with a data acquisition unit (111) that measures data related to the data reception waiting that occurs in channel switch processing, a channel switch-directing unit (110) that controls the timing of operation of the data acquisition unit (111), a parameter-generating unit (112) that generates control parameters based on the data acquired by the data acquisition unit (111), a processing time-calculating unit (113) that calculates the channel switching time based on the control parameters generated by the parameter-generating unit (112), and a channel switch-timing control unit (114); that controls the timing for starting channel switching to shorten the data reception wait time that occurs during channel switching based on the channel switching time calculated by the processing time-calculating unit (113).