JP4409556B2 - 地上デジタル放送信号の再送信装置 - Google Patents
地上デジタル放送信号の再送信装置 Download PDFInfo
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- JP4409556B2 JP4409556B2 JP2006286468A JP2006286468A JP4409556B2 JP 4409556 B2 JP4409556 B2 JP 4409556B2 JP 2006286468 A JP2006286468 A JP 2006286468A JP 2006286468 A JP2006286468 A JP 2006286468A JP 4409556 B2 JP4409556 B2 JP 4409556B2
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- 238000012545 processing Methods 0.000 claims description 29
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- 238000010586 diagram Methods 0.000 description 11
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- 230000015572 biosynthetic process Effects 0.000 description 5
- 238000003786 synthesis reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000003321 amplification Effects 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 239000000284 extract Substances 0.000 description 3
- 238000003199 nucleic acid amplification method Methods 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012937 correction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000012217 deletion Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H20/00—Arrangements for broadcast or for distribution combined with broadcast
- H04H20/02—Arrangements for relaying broadcast information
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- 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
- H04H20/30—Arrangements for simultaneous broadcast of plural pieces of information by a single channel
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- 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
- H04N21/236—Assembling of a multiplex stream, e.g. transport stream, by combining a video stream with other content or additional data, e.g. inserting a URL [Uniform Resource Locator] into a video stream, multiplexing software data into a video stream; Remultiplexing of multiplex streams; Insertion of stuffing bits into the multiplex stream, e.g. to obtain a constant bit-rate; Assembling of a packetised elementary stream
- H04N21/23608—Remultiplexing multiplex streams, e.g. involving modifying time stamps or remapping the packet identifiers
-
- 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
- H04N21/2383—Channel coding or modulation of digital bit-stream, e.g. QPSK modulation
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- 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 encoded video stream packets from an IP network
- H04N21/4382—Demodulation or channel decoding, e.g. QPSK demodulation
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- 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
- H04N21/6112—Network physical structure; Signal processing specially adapted to the downstream path of the transmission network involving terrestrial transmission, e.g. DVB-T
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/26—Systems using multi-frequency codes
- H04L27/2601—Multicarrier modulation systems
- H04L27/2602—Signal structure
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Radio Relay Systems (AREA)
- Details Of Television Systems (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Time-Division Multiplex Systems (AREA)
Description
本発明を実施するための最良の形態を、以下の実施例1〜5により具現化する。実施例1〜4に示す地上デジタル放送信号の再送信装置は、ISDB−T方式による複数チャンネルに割り当てられた地上デジタルテレビジョン放送のOFDM信号を受信し、各チャンネルにおける部分受信部である1つのセグメントのみを連結し再送信信号として送信するものである。実施例5に示す地上デジタル放送信号の再送信装置は、地上デジタルテレビジョン放送信号のOFDM信号及び地上デジタル音声放送信号のOFDM信号を受信し、各チャンネルにおける部分受信部である1つのセグメントのみを連結し再送信信号として送信するものである。
10,100 受信アンテナ
20,200 受信部
21,201 受信変換回路
22,202 フーリエ変換・等化回路
23 キャリア選択回路
24,204 受信同期処理回路
30,400 送信部
31 セグメント遅延制御回路
32 キャリアシンボル硬判定回路
33 キャリアシンボル合成回路
34,403 逆フーリエ変換回路
35,404 送信変換回路
41,501 送信アンテナ
42,502 送信用漏洩同軸ケーブル
203 復調回路
300,310,320 TS多重伝送部
301 TS多重化回路
302 TS分離回路
303 TS分配回路
311 IPカプセル化回路
312 IPデカプセル化回路
330 IPネットワーク
401 再多重化回路
402 OFDMフレーム処理回路
405 増幅回路
406 TMCC制御回路
Claims (5)
- 各チャンネルの地上デジタルテレビジョン放送信号を1セグメントに割り当て一括して連結し、再送信する再送信装置であって、
互いに異なる伝送信号パラメータの地上デジタルテレビジョン放送信号を含む複数のチャンネルの地上デジタル放送信号を受信する複数の受信部であって、各受信部が或るチャンネルの複数セグメントから1つのセグメントを選択し、
該チャンネルの地上デジタル放送信号を復調してTS信号を生成するとともに、該チャンネルの伝送信号パラメータを送出する、複数の受信部と、
生成した各チャンネルのTS信号を、再送信信号を構成する各セグメントにそれぞれ独立して割り当て、この割り当てたTS信号の各伝送信号パラメータのうち、最も高い伝送速度のTS信号が伝送できるような統一した伝送モード及びガードインターバル比の伝送信号パラメータを決定して多重フレームパターンを決定し、この多重フレームパターンを用いて再多重化処理を行い全てのTS信号を連結し、この連結した信号を再送信信号として送信する送信部と、
を備えたことを特徴とする地上デジタル放送信号の再送信装置。 - 前記複数のチャンネルの地上デジタル放送信号は、地上デジタルテレビジョン放送信号及び地上デジタル音声放送信号を含むことを特徴とする、請求項1に記載の地上デジタル放送信号の再送信装置。
- 請求項1又は2に記載の再送信装置において、
前記複数の受信部により生成された各TS信号を入力し、各TS信号に多重化処理を施し、多重ストリーム信号を生成する多重伝送部と、
前記多重伝送部により伝送された多重ストリーム信号を入力し、元の各TS信号に分離して、前記送信部に送信する分離部と、
を備えることを特徴とする、地上デジタル放送信号の再送信装置。 - 請求項1又は2に記載の再送信装置において、
前記複数の受信部により生成された各TS信号を入力し、各TS信号に多重化処理を施し、多重ストリーム信号を生成し、生成した多重ストリーム信号にIPカプセル化処理を施し、IPパケットを生成する多重伝送部と、
前記多重伝送部により伝送された多重ストリーム信号のパケットを入力し、このIPパケットにIPデカプセル化を施し、元の各TS信号に分離して、前記送信部に送信する分離部と、
を備えることを特徴とする地上デジタル放送信号の再送信装置。 - 請求項1〜4のいずれか一項に記載の再送信装置において、
前記送信部を複数備えることを特徴とする地上デジタル放送信号の再送信装置。
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006286468A JP4409556B2 (ja) | 2006-10-20 | 2006-10-20 | 地上デジタル放送信号の再送信装置 |
PE2007001404A PE20070754A1 (es) | 2006-10-20 | 2007-10-17 | Aparato retransmisor para senal de difusion digital terrestre |
BRPI0715168A BRPI0715168B1 (pt) | 2006-10-20 | 2007-10-19 | aparelho de retransmissão |
ARP070104636A AR063341A1 (es) | 2006-10-20 | 2007-10-19 | Aparato retransmisor para senales de radiodifusion terrestre digital |
CL200703012A CL2007003012A1 (es) | 2006-10-20 | 2007-10-19 | Aparato retransmisor para senal de difusion digital terrestre que comprende multiples unidades receptoras, una primera y una segunda unidad de multiplexion y transmision y una unidad transmisora. |
PCT/JP2007/070463 WO2008047913A1 (fr) | 2006-10-20 | 2007-10-19 | Dispositif de retransmission de signal de radiodiffusion numérique de terre |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006286468A JP4409556B2 (ja) | 2006-10-20 | 2006-10-20 | 地上デジタル放送信号の再送信装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008104074A JP2008104074A (ja) | 2008-05-01 |
JP4409556B2 true JP4409556B2 (ja) | 2010-02-03 |
Family
ID=39314123
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006286468A Active JP4409556B2 (ja) | 2006-10-20 | 2006-10-20 | 地上デジタル放送信号の再送信装置 |
Country Status (6)
Country | Link |
---|---|
JP (1) | JP4409556B2 (ja) |
AR (1) | AR063341A1 (ja) |
BR (1) | BRPI0715168B1 (ja) |
CL (1) | CL2007003012A1 (ja) |
PE (1) | PE20070754A1 (ja) |
WO (1) | WO2008047913A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP5615482B2 (ja) * | 2007-10-30 | 2014-10-29 | 京セラ株式会社 | デジタル放送の受信装置および受信制御方法、デジタル放送送信装置 |
JP4565011B2 (ja) * | 2008-03-14 | 2010-10-20 | 株式会社日立製作所 | デジタル放送多重装置 |
JP5227767B2 (ja) * | 2008-12-03 | 2013-07-03 | 日本無線株式会社 | 送信装置およびそれを利用した送信システム |
WO2010110296A1 (ja) * | 2009-03-27 | 2010-09-30 | ソニー株式会社 | 送信装置および送信方法、受信装置および受信方法、並びにプログラム |
EP2413599A1 (en) * | 2009-03-27 | 2012-02-01 | Sony Corporation | Transmission device, transmission method, receiving device, and receiving method |
KR20110039682A (ko) * | 2009-10-12 | 2011-04-20 | 영우통신 주식회사 | 디지털 전송 중계기 및 디지털 전송 중계기에서의 전송 방법 |
WO2011105569A1 (ja) * | 2010-02-25 | 2011-09-01 | マスプロ電工株式会社 | 多重化装置、エンコーダ、デジタル変調器及び自主放送システム |
KR102245257B1 (ko) * | 2019-01-31 | 2021-04-27 | 한국전자통신연구원 | 방송 신호 수신 및 재송신 장치 및 방법 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH09261271A (ja) * | 1996-03-19 | 1997-10-03 | Sharp Corp | 多重化方式 |
JP3051729B1 (ja) * | 1998-12-11 | 2000-06-12 | 日本放送協会 | 複数のトランスポートストリームの多重化装置および分離装置 |
JP2001078158A (ja) * | 1999-09-02 | 2001-03-23 | Hitachi Ltd | ケーブルテレビの送信装置、多重化装置ならびに受信装置 |
JP3962193B2 (ja) * | 2000-01-07 | 2007-08-22 | 日本放送協会 | 複数トランスポートストリーム多重化装置 |
JP3752443B2 (ja) * | 2001-11-14 | 2006-03-08 | シャープ株式会社 | 移動受信機 |
JP4820532B2 (ja) * | 2002-10-17 | 2011-11-24 | 日本テレビ放送網株式会社 | 地上デジタル放送中継伝送装置及び地上デジタル放送中継伝送方法 |
JP4526303B2 (ja) * | 2004-05-27 | 2010-08-18 | 日本テレビ放送網株式会社 | ギャップフィラー装置、及びデジタル放送信号の再送信方法 |
JP2006020128A (ja) * | 2004-07-02 | 2006-01-19 | Nippon Television Network Corp | デジタル放送信号の送受信方法及びその送受信機 |
JP4564303B2 (ja) * | 2004-08-04 | 2010-10-20 | 株式会社放送衛星システム | 衛星搭載中継器 |
JP4410652B2 (ja) * | 2004-10-08 | 2010-02-03 | 日本放送協会 | デジタル放送信号再送信装置 |
JP2005354732A (ja) * | 2005-08-03 | 2005-12-22 | Hitachi Ltd | ケーブルテレビの送信装置、多重化装置ならびに受信装置 |
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2006
- 2006-10-20 JP JP2006286468A patent/JP4409556B2/ja active Active
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2007
- 2007-10-17 PE PE2007001404A patent/PE20070754A1/es active IP Right Grant
- 2007-10-19 AR ARP070104636A patent/AR063341A1/es active IP Right Grant
- 2007-10-19 CL CL200703012A patent/CL2007003012A1/es unknown
- 2007-10-19 BR BRPI0715168A patent/BRPI0715168B1/pt active IP Right Grant
- 2007-10-19 WO PCT/JP2007/070463 patent/WO2008047913A1/ja active Application Filing
Also Published As
Publication number | Publication date |
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JP2008104074A (ja) | 2008-05-01 |
AR063341A1 (es) | 2009-01-21 |
BRPI0715168B1 (pt) | 2019-12-17 |
CL2007003012A1 (es) | 2008-06-20 |
BRPI0715168A2 (pt) | 2013-06-11 |
PE20070754A1 (es) | 2008-06-14 |
WO2008047913A1 (fr) | 2008-04-24 |
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Free format text: JAPANESE INTERMEDIATE CODE: R250 |