Outline of broadcaster s infrastructure

Transcription

1 ISDB-T T Seminar Session 4 part2 DTTB products and infrastructure in Japan Outline of broadcaster s infrastructure Venezuela 2006 August 29 th,2006 DiBEG Japan Yoshiki MARUYAMA tv asahi

2 Contents Fundamental aspect Service and Business Migration plan in the case of Commercial TV Station in Japan Broadcast premises Transmission 2

3 Migration Plan Fundamental aspect Service and Business 3

4 Service and Business solution Number of Channel Video Quality Communication Target Audience Action Where Service Business Source of Revenue Advertising Target Media Potential Analog Broadcasting Single Channel Standard (SDTV) Casting Viewer Passive Home Sponsor (Commercial station) Mass Broadcast Low (Stability) Digital Broadcasting Multi Channel + High quality (HDTV) Interactive Customer Active Anywhere Fusion of Broadcast and Telecommunication + Subscriber, Industry + Segment, One to One + Interactive High 4

5 Business and Source of revenue Business Positioning Core Competence Source of Revenue Existing Service TV Broadcasting Core business - HDTV - Multi Channel Capability of contents organization and production Traditional advertising New Service Internet Data Broadcasting One-Seg Service Contents Distribution New Business - Additional value for TV - New source of revenue Organization combined with TV program and data contents (for TV Commerce) Capability of contents production and contents multiuse New advertising - Electric leaflet - Marketing research Interactive service -TV Commerce Pay TV service 5

6 Migration Plan Broadcast premises 6

7 Requirements for Station System Acquisition Remote Editing Information Server TV Network Host Computer - Handling HD/SD program materials - Compatibility with HD/SD mixed broadcasting and simulcast - Flexibility for audio multi channel - Compatibility with new services - Affiliate network interface NLE On Air System Production Contents Holders Video Network News Program Studio Sub Network & Asset Management On Air Server Data Broadcasting Master Control Switcher Router Encoder MUX Transmitter News - Quick and flexible production and transmission work - Handling HD/SD program materials - External network interface Program - Preservation and rights management for second use of program materials Archive Contents Authoring Center Distribution Server Interactive Server WEB Basic System Internet Broadband or Mobile NW 7

8 Requirements for Master System Handling HD/SD Program Materials - Compatibility of broadcast equipment with HD Compatibility with HD/SD Mixed Broadcasting and Simulcast - HD program assembly for digital broadcasting - SD program assembly for analog broadcasting Flexibility for Audio Multi-Channel - Embedded audio processing (Multiplex to SDI ancillary data) Compatibility with New Services - SI / EPG transmission, Caption transmission - Data Broadcasting, Broadcasting service for One-Seg service - High compression with HD encoder 8

9 Requirements for Master System(2) Affiliates Network Interface - HD and SD program transmission between key station and local stations Efficient Operations - Integrated monitoring system - Monitoring of MPEG transport stream - Monitoring of SI/EPG 9

10 Master Control Switcher Block Diagram Data Data Server Server SI/EPG HD program materials SD program materials Input Input part HD assembly line HD/SD multi-format router SD assembly line Automatic Automatic Program Program Controller Controller MK D/C U/C MK D/C D/C TV Receiver One-Seg service Packetizer Encoder/MUX subsystem HD encoder SD Encoder SD encoder Low bit-rate encoder Data Broadcasting MUX Digital Broadcasting RMP Transmitter system Analog Broadcasting Transmitter system Data Broadcasting Transmission RMP : Rights Management and Protection 10

11 Distribution to the network stations Non-Compression Transmission On Air Key Station On Air Encoder Local Station HD-SDI, SD-SDI Non-compression Broad band Network Compression Transmission Key Station On Air Satellite Network Master Switcher Encoder Decoder Encoder Local Station Master Switcher On Air Encoder Broadcasting MPEG-2 TS Intermediate band Network Insert Local Program Trans-coding TS Processor 11

12 Migration Plan Introduction model 12

13 Nippon television Architecture concept Integrated system Production facilities/storage media/broadcasting system Flexible system Long term life/expansion request Screening Trend technology 13

14 Layout SKY S2 S1 S3 SV S4 Circuit center Media Center News CV center Higher Floor for Office Lower Floor MY Library 0 studio 14

15 Flow of HD/SD Signal Live relay link FPU/SNG transmission for Sports events, News Domestic Domestic & International & International transmission transmission HD Converter Converter HD HD Prog. Prog. Dist. Dist. Sys Sys HD Studio Generalstudio Newsstudio Media Center Terrestrial Terrestrial Master Master Cont. Cont. analogue analogue & & digital digital BS/CS BS/CS Deliver Deliver In-house facilities In-house facilities CG systems CG systems weather center weather center Koji-machi Koji-machi G studio/k studio G studio/k studio Converter Converter SD HD SD SD Prog Prog.Dist.Dist sys sys SD Other studio NNN News Sub Other Other media media Deliver Deliver Audio signal is multiplexed with video signal. 15

16 Media center concept Terrestrial Analog Broadcasting BS Digital /CS Digital Terrestrial Digital broadcasting Media Center Network /Overseas CATV CM Bank Program Server Studio Contents News Other Contents 16

17 Simultaneous Broadcasting In the case of Live program Network Live relay link Sub out Studio CG DSS SD conv H D Sub SW HD H D S D Media Center Digital program Analogue Program Data broadcasting Side Cut Letter box 17

18 Aspect ratio Content Digital/Analogue Format Aspect ratio Picture Duigital(1080i) 16:9 through Analogue D/C (Letter box) HD 4:3 through D/C (Side cut) 4:3 U/C (Side panel) through SD 16:9 U/C (Up & down cut) through 18

19 Simultaneous Broadcasting In the case of VTR program SD contents aspect ratio 4:3 D2 VTR Digital βcam HD contents aspect ratio 16:9 HDCAM HDCAM SR Media Center Media Center Side cut Letter box UP conv. Down conv. Digital HD Program Analogue Program Digital Program Analogue Program 19

20 Program rogram compilation policy Main program Basically HD 1ch Multi-channel program Presently experimental approach Data broadcasting Program-associated service & nonassociated service (independent) 20

21 TV Asahi Architecture concept Full HD & Full digital system Contents sharing system Migration from VTR base to Server base 21

22 Construction of the new building Building Outline Construction period: Aug.1 st 2000 Mar.31 Mar.31 st 2003 Building Area: 9,469.74m 2 Number of Stories: 8 stories and 3stories below ground. Total Floor Area: 73,700.43m 2 Power Supply: 66kV Loop Substation Private Power Generator: Gas Turbine PG. 3,500kVA 6.6kVx2 UPS: 1000KVAx2 Redundant operation 22

23 Construction of the new building(2) tv asahi has installed full digital broadcasting systems for Analogue & Digital terrestrial television broadcasting at new building, instead i of analogue systems at previous broadcasting premise. First programme of Digital terrestrial television broadcasting had been transmitting from the new building in Roppongi Hills on Dec. 1 st,

24 Master control system Data processing system Data server 制御コントローラ controller Digital broadcasting HD-VTR SD-VTR Programme server Switching matrix E N C デジタル出力 M U X Analogue output スクランブラ C A S Analogue broadcasting 24

25 Master control system (2) Characteristics of Master Control Switcher System Massive and SD/HD Multi-format System - SD/HD router ; 256 x 128 High Reliability - Triple redundant system - Input part ; Dual Scalability - Easy extension by addition of MK part - Software update by using Test part Efficient monitoring and operations - Integrated monitoring system - Multi-monitor, Touch panel 25

26 Master control system (3) 26

27 HDTV Applications Segments: 12 Segments: 1 27 Supplemental broadcast Supplemental broadcast Supplemental broadcast SDTV1 SDTV2 SDTV3 Supplemental broadcast Supplemental broadcast 1 segment service for mobile phone

28 Tokyo Broadcasting System Architecture concept Two-step approach First step from end of 2003 system Add on system Second step from end of 2004 Full digital 28

29 Add on system Current Analog Master U/C ENC SI/EPG Data program Analogue program Local area M U X Add on system New Digital HD Master EPG system SI/EPG Data Program system ENC SI/EPG Data program Analogue network Digital network M U X Digital program Local area Network Osaka & Nagoya 29

30 Monitoring system Analogue program Local Network Digital program Local Network 30

31 Add on monitoring system Add on system 31

32 Transmission parameter First stage 13 segment 64QAM ¾ 18.2Mbps HD Video Audio SI & caption Data broadcast Final stage 12 segment 64QAM¾ 16.8Mbps One-seg HD Video Audio SI & caption Data broadcast Mobile service 32

33 Fuji television Architecture concept Cost minimum Simple system 33

34 Renewal plan First stage Master system is Add on system Second stage When analogue master update, Fuji television will introduce total integrated master system. Analogue broadcasting 2005 Integrated Master Dec Digital broadcasting Dec.2011 Analogue is expected to be terminated 34

35 TV Tokyo Architecture concept Analogue Digital total system Flexible programming Cost effective system 35

36 Broadcast system Digital HD/SD Sys-A Analogue SD Sys-A Sys-B Sys CHG ENC/MUX ENC/MUX Network Network ENC/MUX CHG CHG Sys CHG Digital Analogue Digital Analogue ENC/MUX Sys-test 36

37 Data broadcast system EDPS DS APS MUX Master Contents Management Server Play list Schedule Management Server Broadcast Management Server Carrousel Generator Auto production Server Data brodcast Check sys VBR cont BML Contents Real time information 37

38 Migration Plan Transmission 38

39 Digital transmissionssion Transmitters and antennas for digital terrestrial television broadcasting installed at Tokyo Tower in STL Optic fiber line x2 backup STL Micro wave 39

40 Digital transmitter system Example of transmitter schematic diagram in case of Tokyo Tower ANT. COMBINER Other Broadcasterer s transmitter #1 #2 Fiber TERM. Fiber TERM. 64QAM MOD 64QAM MOD Sync. & Delay Sync. & Delay SW. & DIST. OFDM MOD OFDM MOD (5kW 2/3 system digital Transmitter) SW. & DIST. 5 kw TX. 5 kw TX. 5 kw TX. EXCHG/COMBINER 40

41 Digital Transmitter system Three 5kw transmitters for redundant operation. Output power is 10kW. TOSHIBA NEC 41

42 Antennas(1) A number of analog TV antennas were already mounted on the optimum position of Tokyo Tower. Analog Antenna NHK TV Asahi Fuji TV TBS NTV TV Tokyo 42

43 Antennas(2) Vacancy zone is around 250mH of Tokyo tower, There are no appropriate space except there. Digital antennas were designed, compact size, 6 meters in width and 12 meters in height. Vacancy zone Digital TV Antennas Special observation deck 43

44 Antennas(3) A A beam pattern synthesis technology realized an omni directional radiation pattern in compact size. plane view db 6 db Radiation pattern Section view db 15 db 20 db

45 Transmission network chain To cover the service area all over the country, Broadcasters have to construct many relay stations. Micro-STL Micro-STL Relay station Studio Main transmitter station Airwave relay Same channel SFN Mobile & Portable reception Relay station Fixed reception 45

46 Relay station Airwave relay station Transmitting Antenna Receiving Antenna 46

47 ISDB-T T seminar in Venezuela Thank you for your attention! END Digital Broadcasting Expert Group dibeg.org mail: info@dibeg dibeg.org 47