BRPI0705803A - sistema de difusão digital e transmissor de difusão e dispositivo de monitoração para uso no sistema - Google Patents

sistema de difusão digital e transmissor de difusão e dispositivo de monitoração para uso no sistema

Info

Publication number
BRPI0705803A
BRPI0705803A BRPI0705803-9A BRPI0705803A BRPI0705803A BR PI0705803 A BRPI0705803 A BR PI0705803A BR PI0705803 A BRPI0705803 A BR PI0705803A BR PI0705803 A BRPI0705803 A BR PI0705803A
Authority
BR
Brazil
Prior art keywords
broadcast
broadcast transmitters
monitoring device
area
digital
Prior art date
Application number
BRPI0705803-9A
Other languages
English (en)
Inventor
Masaru Mitsuhashi
Original Assignee
Toshiba Kk
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Kk filed Critical Toshiba Kk
Publication of BRPI0705803A publication Critical patent/BRPI0705803A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/12—Arrangements for observation, testing or troubleshooting
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/65—Arrangements characterised by transmission systems for broadcast
    • H04H20/67—Common-wave systems, i.e. using separate transmitters operating on substantially the same frequency
    • 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
    • H04N21/44209—Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless 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
    • H04N21/64723—Monitoring of network processes or resources, e.g. monitoring of network load
    • H04N21/64738—Monitoring network characteristics, e.g. bandwidth, congestion level

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Radio Relay Systems (AREA)
  • Transmitters (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Monitoring And Testing Of Transmission In General (AREA)

Abstract

SISTEMA DE DIFUSãO DIGITAL E TRANSMISSOR DE DIFUSãO E DISPOSITIVO DE MONITORAçãO PARA USO NO SISTEMA. Uma pluralidade de transmissores de difusão (120-12N), cada um, recebe uma distribuição de sinais de difusão digital através de uma rede (NET) para transmissão deles em direção a uma área sob controle pelo uso de ondas sem fio das quais as freqüências são as mesmas. Aqui, quando os sinais são transmitidos a partir da pluralidade de transmissores de difusão para a área, uma ocorrência de um desvio de um valor fixo ou mais impõe uma falha de interferência e resulta em um estado de recepção desabilitado. Portanto, monitores (13) são providos na área para o recebimento de ondas sem fio a partir da pluralidade de transmissores de difusão, monitoram estados de recepção, e controlam a potência de saída, sincronismo de saída, etc., dos transmissores de difusão que são origens de transmissão das ondas sem fio recebidas para se tornarem os estados de recepção apropriados.
BRPI0705803-9A 2006-09-14 2007-09-06 sistema de difusão digital e transmissor de difusão e dispositivo de monitoração para uso no sistema BRPI0705803A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006250141A JP4551889B2 (ja) 2006-09-14 2006-09-14 デジタル放送システムとこのシステムに用いられる放送装置及び監視装置

Publications (1)

Publication Number Publication Date
BRPI0705803A true BRPI0705803A (pt) 2008-06-10

Family

ID=38894066

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0705803-9A BRPI0705803A (pt) 2006-09-14 2007-09-06 sistema de difusão digital e transmissor de difusão e dispositivo de monitoração para uso no sistema

Country Status (5)

Country Link
US (1) US8565136B2 (pt)
EP (1) EP1901454A3 (pt)
JP (1) JP4551889B2 (pt)
CN (2) CN104796791A (pt)
BR (1) BRPI0705803A (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5156676B2 (ja) * 2009-03-30 2013-03-06 Ｋｄｄｉ株式会社 送信局
CN101860803A (zh) * 2010-06-12 2010-10-13 珠海无线蜂网科技有限公司 一种广播电视信号的发射方法、传输中心、基站及系统
IT1404268B1 (it) 2011-02-18 2013-11-15 Onetastic S R L Metodo per sincronizzare nel tempo una pluralità di trasmettitori appartenenti ad una rete
WO2016129709A1 (ru) * 2015-02-10 2016-08-18 Алмазбек Толкунбаевич АБЕКОВ Сеть цифрового вещания с мультисервисным обратным каналом (dvb-mrc)
CN107615689B (zh) * 2015-04-09 2020-04-14 艾比奎蒂数字公司 自动检测数字无线电广播信号中的信号质量的系统和方法
JP6196277B2 (ja) * 2015-11-17 2017-09-13 日本通信機株式会社 同期放送システム、送信装置

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1996008889A1 (en) * 1994-09-12 1996-03-21 Philips Electronics N.V. Single frequency transmission network
JPH11281725A (ja) * 1998-03-26 1999-10-15 Nec Corp 多重伝搬波パラメータ計測方法及び装置並びにプログラムを記録した機械読み取り可能な記録媒体
JP2000324361A (ja) * 1999-05-12 2000-11-24 Toshiba Corp デジタルテレビ放送装置
EP1063799B1 (de) 1999-06-22 2003-08-13 Swisscom AG Messverfahren für Einfrequenznetze und dafür geeignete Vorrichtungen
DE19937457C2 (de) 1999-08-07 2003-10-09 Bosch Gmbh Robert Verfahren zur Überwachung von Sendern in einem Gleichwellennetz und Anordnung hierfür
JP4371339B2 (ja) * 2000-03-30 2009-11-25 株式会社日立国際電気 受信エリア監視・制御方法及び放送システム
JP2003032207A (ja) * 2001-07-12 2003-01-31 Nec Corp 地上波ディジタル放送のｓｆｎシステム及びその伝送遅延制御方法
US20030037340A1 (en) * 2001-08-17 2003-02-20 Koninklijke Philips Electronics N.V. Method and apparatus for managing TV broadcast content that has synchronized web applications
JP3564468B2 (ja) * 2002-09-09 2004-09-08 三星電子株式会社 超広帯域無線送信機及び超広帯域無線受信機並びに超広帯域無線通信方法
CN1205815C (zh) * 2002-12-27 2005-06-08 北京华通为尔广视科技有限公司 有线电视网络监控系统和监控方法
DE10342040A1 (de) 2003-09-11 2005-04-07 Rohde & Schwarz Gmbh & Co Kg Verfahren zur Überwachung der Zeitsynchronität von Sendern in einem Gleichwellennetz
KR20060110420A (ko) * 2005-04-19 2006-10-25 삼성전자주식회사 단일 주파수 망을 가지는 디지털 방송 시스템에서 방송제공 장치 및 방법과 그 시스템
KR20060110426A (ko) * 2005-04-19 2006-10-25 삼성전자주식회사 단말 주파수 망을 이용하는 디지털 방송 시스템에서 데이터송수신 방법 및 장치와 그 시스템
US9354297B2 (en) * 2005-09-27 2016-05-31 Qualcomm Incorporated Position location using phase-adjusted transmitters

Also Published As

Publication number Publication date
JP4551889B2 (ja) 2010-09-29
US8565136B2 (en) 2013-10-22
EP1901454A2 (en) 2008-03-19
CN101174910A (zh) 2008-05-07
JP2008072527A (ja) 2008-03-27
CN104796791A (zh) 2015-07-22
US20080072268A1 (en) 2008-03-20
EP1901454A3 (en) 2013-06-26

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Legal Events

Date Code Title Description
B03H Publication of an application: rectification [chapter 3.8 patent gazette]

Free format text: REFERENTE A RPI 1953 DE 10/06/2008, QUANTO AO ITEM (30)

B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B06T Formal requirements before examination [chapter 6.20 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: AS CLASSIFICACOES ANTERIORES ERAM: H04N 5/38 , H04L 7/02

Ipc: H04H 20/12 (2008.01), H04H 20/67 (2008.01)

B11E Dismissal acc. art. 34 of ipl - requirements for examination incomplete
B11T Dismissal: dismissal of application maintained