WO2008084715A1 - デジタル放送受信回路、これを備えたデジタル放送受信装置とその制御方法 - Google Patents

デジタル放送受信回路、これを備えたデジタル放送受信装置とその制御方法 Download PDF

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Publication number
WO2008084715A1
WO2008084715A1 PCT/JP2007/075142 JP2007075142W WO2008084715A1 WO 2008084715 A1 WO2008084715 A1 WO 2008084715A1 JP 2007075142 W JP2007075142 W JP 2007075142W WO 2008084715 A1 WO2008084715 A1 WO 2008084715A1
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WO
WIPO (PCT)
Prior art keywords
signal
digital broadcast
signals
switching
broadcast reception
Prior art date
Application number
PCT/JP2007/075142
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English (en)
French (fr)
Inventor
Naohiro Yamamoto
Shuichi Takayama
Takanori Miyashita
Sayuri Tanaka
Yuji Iwakiri
Hiroki Tatsumoto
Hidetoshi Kakiuchi
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Panasonic Corporation
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Application filed by Panasonic Corporation filed Critical Panasonic Corporation
Priority to EP07860364A priority Critical patent/EP2104344A4/en
Publication of WO2008084715A1 publication Critical patent/WO2008084715A1/ja

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/28—Arrangements for simultaneous broadcast of plural pieces of information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/42—Arrangements for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • 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, manipulating MPEG-4 scene graphs
    • H04N21/2343—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements
    • H04N21/234327—Processing of video elementary streams, e.g. splicing of video streams, manipulating MPEG-4 scene graphs involving reformatting operations of video signals for distribution or compliance with end-user requests or end-user device requirements by decomposing into layers, e.g. base layer and one or more enhancement layers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/414—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance
    • H04N21/41407—Specialised client platforms, e.g. receiver in car or embedded in a mobile appliance embedded in a portable device, e.g. video client on a mobile phone, PDA, laptop
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/41—Structure of client; Structure of client peripherals
    • H04N21/426—Internal components of the client ; Characteristics thereof
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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
    • H04N21/438—Interfacing the downstream path of the transmission network originating from a server, e.g. retrieving MPEG packets from an IP network
    • H04N21/4383—Accessing a communication channel
    • H04N21/4384—Accessing a communication channel involving operations to reduce the access time, e.g. fast-tuning for reducing channel switching latency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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
    • 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
    • H04N21/4424—Monitoring of the internal components or processes of the client device, e.g. CPU or memory load, processing speed, timer, counter or percentage of the hard disk space used
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing 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
    • H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
    • H04N21/4436—Power management, e.g. shutting down unused components of the receiver
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • 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 
    • H04N21/61—Network physical structure; Signal processing
    • H04N21/6106—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network
    • H04N21/6131—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving transmission via a mobile phone network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • 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
    • H04N21/647—Control signaling between network components and server or clients; Network processes for video distribution between server and clients, e.g. controlling the quality of the video stream, by dropping packets, protecting content from unauthorised alteration within the network, monitoring of network load, bridging between two different networks, e.g. between IP and wireless
    • H04N21/64784—Data processing by the network
    • H04N21/64792—Controlling the complexity of the content stream, e.g. by dropping packets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/46—Receiver circuitry for the reception of television signals according to analogue transmission standards for receiving on more than one standard at will
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Engineering & Computer Science (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • Computer Security & Cryptography (AREA)
  • Business, Economics & Management (AREA)
  • General Business, Economics & Management (AREA)
  • Circuits Of Receivers In General (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)

Abstract

　映像や音声をとぎれることなく切り替えでき、加えて消費電力の低減を実現できるデジタル放送受信回路およびこれを備えたデジタル放送受信装置と、その制御方法を提供する。同一のコンテンツが品質の異なる複数の階層の信号として送信されるデジタル放送信号を受信し、前記複数の階層の信号をそれぞれ信号処理手段で処理して生成された複数の出力信号のうち、選択された階層の信号に基づく前記出力信号を出力するデジタル放送受信装置に用いられ、前記複数の階層の信号についての受信状況を判定して前記出力信号を生成する階層を選択し、前記選択された階層の信号を出力するための切替信号を生成するとともに、選択されなかった階層の信号を処理する前記信号処理手段の一部または全部を停止させる切替制御手段と、前記切替信号にしたがって出力信号を切り替える出力切替手段とを備える。
PCT/JP2007/075142 2007-01-10 2007-12-27 デジタル放送受信回路、これを備えたデジタル放送受信装置とその制御方法 WO2008084715A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07860364A EP2104344A4 (en) 2007-01-10 2007-12-27 DIGITAL RADIO RECEIVING, DIGITAL RADIATION RECEPTION DEVICE THEREFOR AND CONTROL METHOD THEREFOR

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-002645 2007-01-10
JP2007002645 2007-01-10
JP2007-166748 2007-06-25
JP2007166748A JP2008193654A (ja) 2007-01-10 2007-06-25 デジタル放送受信回路、これを備えたデジタル放送受信装置とその制御方法

Publications (1)

Publication Number Publication Date
WO2008084715A1 true WO2008084715A1 (ja) 2008-07-17

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PCT/JP2007/075142 WO2008084715A1 (ja) 2007-01-10 2007-12-27 デジタル放送受信回路、これを備えたデジタル放送受信装置とその制御方法

Country Status (3)

Country Link
EP (1) EP2104344A4 (ja)
JP (1) JP2008193654A (ja)
WO (1) WO2008084715A1 (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010136184A (ja) * 2008-12-05 2010-06-17 Sharp Corp デジタル放送受信機
EP2180709A3 (en) * 2008-10-22 2011-09-14 Samsung Electronics Co., Ltd. Broadcast processing apparatus and control method thereof

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JP5246761B2 (ja) * 2008-09-18 2013-07-24 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 映像再生装置及びプログラム
JP5412796B2 (ja) * 2008-11-04 2014-02-12 日産自動車株式会社 デジタル放送受信機
JP5489199B2 (ja) * 2008-12-12 2014-05-14 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 デジタル放送受信装置、及び、プログラム
JP5273793B2 (ja) * 2008-12-25 2013-08-28 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 電子機器並びにその切換方法及びプログラム
JP2010200163A (ja) * 2009-02-26 2010-09-09 Sharp Corp 復調装置、復調方法、復調プログラム、および、コンピュータ読み取り可能な記録媒体
JP5385641B2 (ja) * 2009-03-16 2014-01-08 日本電信電話株式会社 昇圧制御回路の制御方法および昇圧制御回路
JP2010278581A (ja) * 2009-05-26 2010-12-09 Nec Casio Mobile Communications Ltd チューナ制御装置及びチューナ制御プログラム
JP5441157B2 (ja) * 2009-11-04 2014-03-12 Ｎｅｃカシオモバイルコミュニケーションズ株式会社 放送受信装置、切替え方法及びプログラム
EP2601788A1 (en) * 2010-08-06 2013-06-12 Thomson Licensing Apparatus and method for receiving signals
JP5331773B2 (ja) * 2010-10-14 2013-10-30 株式会社ソニー・コンピュータエンタテインメント 動画再生装置、情報処理装置および動画再生方法
JP5854899B2 (ja) 2012-03-15 2016-02-09 ルネサスエレクトロニクス株式会社 半導体装置、及びその信号処理方法
CN102833022A (zh) 2012-08-22 2012-12-19 中兴通讯股份有限公司 广播切换装置、方法与终端
JP6326941B2 (ja) * 2014-04-28 2018-05-23 株式会社ソシオネクスト デジタル放送受信機およびデジタル放送受信方法

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JP2002158726A (ja) * 2000-11-16 2002-05-31 Kenwood Corp ディジタル放送受信装置
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2180709A3 (en) * 2008-10-22 2011-09-14 Samsung Electronics Co., Ltd. Broadcast processing apparatus and control method thereof
JP2010136184A (ja) * 2008-12-05 2010-06-17 Sharp Corp デジタル放送受信機

Also Published As

Publication number Publication date
EP2104344A1 (en) 2009-09-23
JP2008193654A (ja) 2008-08-21
EP2104344A4 (en) 2012-02-01

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