WO2010050565A1 - 地上デジタルテレビジョン放送における緊急速報の受信機及び送信装置 - Google Patents

地上デジタルテレビジョン放送における緊急速報の受信機及び送信装置 Download PDF

Info

Publication number
WO2010050565A1
WO2010050565A1 PCT/JP2009/068612 JP2009068612W WO2010050565A1 WO 2010050565 A1 WO2010050565 A1 WO 2010050565A1 JP 2009068612 W JP2009068612 W JP 2009068612W WO 2010050565 A1 WO2010050565 A1 WO 2010050565A1
Authority
WO
WIPO (PCT)
Prior art keywords
emergency
signal
unit
information
error correction
Prior art date
Application number
PCT/JP2009/068612
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
誠 田口
浩之 古田
研一 村山
啓之 濱住
一彦 澁谷
Original Assignee
日本放送協会
財団法人エヌエイチケイエンジニアリングサービス
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 日本放送協会, 財団法人エヌエイチケイエンジニアリングサービス filed Critical 日本放送協会
Priority to BRPI0919862A priority Critical patent/BRPI0919862A2/pt
Publication of WO2010050565A1 publication Critical patent/WO2010050565A1/ja

Links

Images

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
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B27/00—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations
    • G08B27/008—Alarm systems in which the alarm condition is signalled from a central station to a plurality of substations with transmission via TV or radio broadcast
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/53—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers
    • H04H20/59—Arrangements specially adapted for specific applications, e.g. for traffic information or for mobile receivers for emergency or urgency
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
    • H04H20/86—Arrangements characterised by the broadcast information itself
    • H04H20/95—Arrangements characterised by the broadcast information itself characterised by a specific format, e.g. an encoded audio stream
    • 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
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • 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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • 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
    • H04N21/235—Processing of additional data, e.g. scrambling of additional data or processing content descriptors
    • H04N21/2355—Processing of additional data, e.g. scrambling of additional data or processing content descriptors involving reformatting operations of additional data, e.g. HTML pages
    • 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
    • H04N21/238—Interfacing the downstream path of the transmission network, e.g. adapting the transmission rate of a video stream to network bandwidth; Processing of multiplex streams
    • H04N21/2381—Adapting the multiplex stream to a specific network, e.g. an Internet Protocol [IP] 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]
    • H04N21/40—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
    • H04N21/435—Processing of additional data, e.g. decrypting of additional data, reconstructing software from modules extracted from the transport stream
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8126—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts
    • H04N21/814—Monomedia components thereof involving additional data, e.g. news, sports, stocks, weather forecasts comprising emergency warnings
    • 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]
    • H04N21/80—Generation or processing of content or additional data by content creator independently of the distribution process; Content per se
    • H04N21/81—Monomedia components thereof
    • H04N21/8146—Monomedia components thereof involving graphical data, e.g. 3D object, 2D graphics
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/004—Arrangements for detecting or preventing errors in the information received by using forward error control
    • H04L1/0045—Arrangements at the receiver end

Definitions

  • the present invention relates to a transmission apparatus that transmits an emergency bulletin with a transmission control control signal and a receiver that receives the emergency bulletin with a transmission control control signal in terrestrial digital television broadcasting.
  • a start flag for emergency warning broadcasting which changes the bit value based on emergency warning broadcasting, is described. If this emergency warning broadcast activation flag is detected and the value is 1, emergency warning broadcast is performed, and therefore the receiver can be started up by this emergency warning broadcast activation flag.
  • a technology that operates while suppressing standby power consumption and activates a receiver that is not turned on to notify the receiver (e.g., see Patent Document 1).
  • This technology includes a transmission control signal receiving circuit for detecting an emergency warning broadcast activation flag. When the emergency warning broadcast activation flag is 1, the terrestrial digital television broadcast receiver is turned on, and the receiver This is a technology that encourages viewers to watch emergency warning broadcasts.
  • an object of the present invention is to provide a transmitting device that transmits an emergency bulletin with a transmission control control signal and a receiver that receives the emergency bulletin with a transmission control control signal.
  • a transmission control signal of a terrestrial digital broadcast wave (known control signals necessary for transmission control such as a TMCC signal or an AC signal are collectively referred to as a transmission control signal).
  • a transmission control signal a transmission control signal of a terrestrial digital broadcast wave
  • the transmitting side transmits an error detection parity bit together with the transmitted emergency bulletin, and the receiving side avoids an emergency early warning due to a data error that could not be corrected by the error correction decoding process.
  • the transmission system of the present invention is a digital terrestrial television broadcast transmission system including a transmission device and a receiver, and the transmission device includes an emergency early warning data conversion unit that converts emergency early warning data into a predetermined format; An error detection parity calculation unit for calculating an error detection parity bit corresponding to the converted emergency warning data, and an error correction code calculation for calculating and adding an error correction code to the emergency warning data and the error detection parity bit A broadcast TS remultiplexing unit that multiplexes the emergency early warning data, the error detection parity bit, and the error correction code into a predetermined transport stream in order to modulate the transmission control signal.
  • the TMCC signal has fewer transmission information frames that can be used arbitrarily than the AC signal, for example, a signal identification [3] described later is transmitted so that more information can be transmitted in a short time. Further, detailed information of other detailed emergency bulletin may be assigned to the AC signal.
  • the transmitting device transmits a “signal identification” defined as follows.
  • the receiver described later can execute an operation defined for each “signal identification” in accordance with the signal identification.
  • signal identification 000 to 110
  • “emergency earthquake warning”, “emergency warning broadcast”, or “push-type content distribution” can be identified.
  • Signal Identification 111
  • the above-mentioned activation flag detection is a malfunction, and the process shifts to the operation of resuming the monitoring of the activation flag without analyzing the detailed information to prevent erroneous detection. be able to.
  • FIG. 5 shows a block diagram of the transmission apparatus according to the first embodiment of the present invention.
  • the transmission apparatus 1 according to the first embodiment is an apparatus that modulates emergency early warning data and redundant bits into a TMCC signal or an AC signal of an ISDB-T terrestrial digital television broadcast signal and outputs the modulated data.
  • the error detection parity calculation unit 3 receives the format-converted emergency warning data, calculates redundant bits for error detection with respect to the format-converted emergency warning data, and outputs a data string to which the redundant bit is added. Is. Examples of the redundant bits added for error detection include a parity method, a checksum method, and a cyclic redundancy check (CRC: Cyclic Redundancy Check) method.
  • the transmission apparatus according to the first embodiment of the present invention may employ any method.
  • the data error detection unit 12 inputs the TMCC information and AC information after the correction process, confirms again whether the corrected TMCC information and the AC information have an error, and together with the TMCC information and the AC information, results of the data error detection Is output.
  • the packet header extraction / determination unit 14 inputs TMCC information or AC information output from the TMCC / AC demodulation unit 10, extracts a packet header portion from the input TMCC information or AC information, and includes the packet header part The contents of the “start flag” (information indicating presence / absence of the emergency warning) and “signal identification” of the emergency warning to be determined are determined.
  • the packet header extraction / determination unit 14 outputs the TMCC information and the AC information to the error correction decoding unit 11 when it is determined that the emergency start is transmitted in the “activation flag” in the packet header.
  • the transmission apparatus and receiver of the second embodiment of the present invention even if correction processing using an error correction code is performed, the correction capability of the code itself may be exceeded depending on the type of correction code and the reception environment. Even when a bit error occurs, the configuration is such that after the error correction decoding process is performed after the content determination of the packet header is performed, the data error detection unit reconfirms the information, so that it is possible to further avoid the false early warning information. .

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Computer Graphics (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
  • Circuits Of Receivers In General (AREA)
PCT/JP2009/068612 2008-10-29 2009-10-29 地上デジタルテレビジョン放送における緊急速報の受信機及び送信装置 WO2010050565A1 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
BRPI0919862A BRPI0919862A2 (pt) 2008-10-29 2009-10-29 receptor e transmissor de alertas de emergencia em transmissoes de tv digitalterrestre

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2008278909 2008-10-29
JP2008-278909 2008-10-29

Publications (1)

Publication Number Publication Date
WO2010050565A1 true WO2010050565A1 (ja) 2010-05-06

Family

ID=42128924

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2009/068612 WO2010050565A1 (ja) 2008-10-29 2009-10-29 地上デジタルテレビジョン放送における緊急速報の受信機及び送信装置

Country Status (3)

Country Link
JP (1) JP4633187B2 (pt)
BR (1) BRPI0919862A2 (pt)
WO (1) WO2010050565A1 (pt)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6307934B2 (ja) * 2014-02-28 2018-04-11 三菱電機株式会社 避難誘導システム
JP2020123833A (ja) * 2019-01-30 2020-08-13 Ｎｅｃソリューションイノベータ株式会社 放送装置、警報システム、警報方法およびプログラム

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002084255A (ja) * 2000-06-27 2002-03-22 Nippon Hoso Kyokai <Nhk> デジタル伝送方法と受信機
JP2003085874A (ja) * 2001-09-10 2003-03-20 Toshiba Corp データフレームに対するスクランブル方法
JP2005295053A (ja) * 2004-03-31 2005-10-20 Nippon Hoso Kyokai <Nhk> 伝送制御信号受信機及びそれを用いた地上デジタルテレビジョン放送受信機
JP2006060458A (ja) * 2004-08-19 2006-03-02 Fujitsu Ltd 受信装置
JP2007243936A (ja) * 2006-02-07 2007-09-20 Toshiba Corp デジタル放送システムとこのシステムに用いられる送信系装置、緊急放送処理装置、データサーバ及び受信機
JP2008085425A (ja) * 2006-09-26 2008-04-10 Sony Corp 復調装置および方法、並びにプログラム

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002084255A (ja) * 2000-06-27 2002-03-22 Nippon Hoso Kyokai <Nhk> デジタル伝送方法と受信機
JP2003085874A (ja) * 2001-09-10 2003-03-20 Toshiba Corp データフレームに対するスクランブル方法
JP2005295053A (ja) * 2004-03-31 2005-10-20 Nippon Hoso Kyokai <Nhk> 伝送制御信号受信機及びそれを用いた地上デジタルテレビジョン放送受信機
JP2006060458A (ja) * 2004-08-19 2006-03-02 Fujitsu Ltd 受信装置
JP2007243936A (ja) * 2006-02-07 2007-09-20 Toshiba Corp デジタル放送システムとこのシステムに用いられる送信系装置、緊急放送処理装置、データサーバ及び受信機
JP2008085425A (ja) * 2006-09-26 2008-04-10 Sony Corp 復調装置および方法、並びにプログラム

Also Published As

Publication number Publication date
JP4633187B2 (ja) 2011-02-16
BRPI0919862A2 (pt) 2015-12-15
JP2010136354A (ja) 2010-06-17

Similar Documents

Publication Publication Date Title
JP4864156B2 (ja) 地上デジタルテレビジョン放送における緊急速報の送信装置、及び伝送システム
EP3048795B1 (en) Transmission device, transmission method, reception device, reception method, and computer program
JP5508813B2 (ja) 地上デジタルテレビジョン放送における緊急情報の送信装置及び受信装置、並びに伝送システム
WO2015040914A1 (ja) 送信装置及び送信方法、受信装置及び受信方法、並びにコンピューター・プログラム
JP2010114777A (ja) 放送受信回路および放送受信装置
JP2007295468A (ja) デジタルデータ受信機及びデジタルデータ受信方法
JP4598870B2 (ja) 地上デジタルテレビジョン放送における緊急速報の受信機及び送信装置、並びに伝送システム
JP2011211560A (ja) 放送受信装置
JP4633187B2 (ja) 地上デジタルテレビジョン放送における緊急速報の受信機及び送信装置、並びに伝送システム
JP2010035088A (ja) デジタル放送受信装置およびデジタル放送に多重化されたｉｐパケットの取得方法
EP3541083B1 (en) Reception device, reception method, transmission device, and transmission method
JP2008136052A (ja) データ伝送装置およびデータ受信装置
JP2011114593A (ja) デジタル放送受信装置
JP4562685B2 (ja) デジタルデータ受信機
JP5324077B2 (ja) 放送受信装置
JP5277140B2 (ja) 地上デジタルテレビジョン放送における緊急情報の送信装置及び受信装置
JP2007096980A (ja) 無線中継システム、中継送信装置、及び中継監視方法
JP4444702B2 (ja) デジタル伝送システム
JP6252166B2 (ja) デジタル放送装置及びデジタル放送方法
KR100754185B1 (ko) 방송 서비스의 수신능력을 표시하는 방법 및 장치
JP2007300166A (ja) デジタルデータ受信機
JP4361340B2 (ja) デジタルテレビ受信機
KR100792970B1 (ko) 디지털 멀티미디어 방송 수신을 위한 시스템과 그 방법 및 단말기
JP4562684B2 (ja) デジタルデータ受信機
JP2014042227A (ja) 通信装置およびデジタル放送受信システム

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 09823675

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 09823675

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: PI0919862

Country of ref document: BR

Kind code of ref document: A2

Effective date: 20110429