DigitalDigital TerrestrialTerrestrial TVTV inin JapanJapan Rapid growth and progress
August 27th 2004 Hiroshi ASAMI Director of Broadcasting Technology Division Information and Communications Policy Bureau MPHPT, Japan Broadcasting Authority of Japan Topics
1. Update of Digital Terrestrial Television Broadcasting (DTTB) in Japan 2. Policy and Strategy for DTTB 3. Service Features of DTTB 4. World Trend of DTTB
1 UpdateUpdate ofof DigitalDigital TerrestrialTerrestrial TelevisionTelevision BroadcastingBroadcasting inin JapanJapan
2 Service area of DTTB in Japan
Digital Terrestrial Television Broadcasting (DTTB) started in three main areas (Tokyo, Nagoya and Osaka) on December 1st, 2003. DTTB will be started in Ibaraki (Oct. 2004), Toyama (Oct. 2004) ,Gifu (Nov. 2004) , Kanagawa (Dec. 2004) and Hyogo (Dec. 2004).
Toyama
Gifu Ibaraki
Hyogo Tokyo
Kanagawa
Osaka Nagoya
3 Population Coverage of DTTB in Japan
Approximately over 12 million households (25% of total household in Japan)
Expansion of population coverage (households) 2004 17 million (35%) 2005 23 million (48%) 2006 available at all prefectures (80%)
Number of potential households via CATV networks 7 million households in total
4 Rapid increase of DTTB Receiver Shipment
1200 1068 ■ Per Month 1000 ■ Total 923 825
800 742
626 600 555 500
400 331
169 200 144 116 83 98 55 71
Number of DTTB Receivers (thousand) Number of DTTB 0 Total Sum until Dec Jan,2004 Feb Mar Apr May Jun Nov,2003 DTTB Start 1.2 million receivers are in the market now 5 Digital TV Products
PlasmaPlasma
PDPPDP Panasonic
6 Digital TV Products
LCDLCD
7 Digital TV Products
CRTCRT
STBSTB typetype
More manufactures are entering the market!
8 All-in one DTTB Receiver
1.2 million of DTTB receiver are All-in one DTTB receivers
¾ Equipped with Digital Terrestrial and Satellite Tuner
¾ Compatible with HDTV (1080i)
¾ Equipped with Data Broadcasting decoder
¾ Capability to connect Network
Some models have internet web browsing function
In addition, more than 3 million of HDTV ready TV (HDTV display without digital tuner) are in the market
9 Example of Internet TV
Portal Site Character Input Button
Internet Button
Operation Button
Access to Favorite Site
10 Example of Internet Function
Internet Screen One Screen Mode
Internet Screen
TV Mode Two (TV + Internet) Screen Mode
11 Example of Internet TV
EPG and T-navi Portal Site T-navi: dedicated sites for TV internet viewers
12 Example of Internet TV
T-navi Menu List NEWS
Travel
Shopping
13 Example of Digital TV Product
1920x1080 full HDTV resolution LCD display
Digital HDTV recorder (HDD+DVD) with digital TV tuner
14 Example of Digital TV PC Product
PC with DTTB tuner card EPG enables to record TV program to PC
15 Example of Product (CATV Digital STB)
DTTB is broadcasted by CATV with 64QAM transmodulation. 30 million digital STB sets are in the market
16 Price Trends of HDTV Receiver in Japan 12000 CRT (with Digital tuner) CRT (without Digital tuner) PDP (with Digital tuner) 10000 LCD (with Digital tuner) LCD (without Digital tuner） LCD（without Digital tuner , SDTV） 8000
系列1 系列2 系列3 6000 系列4 系列5 系列6
4000
Rear-Projection LCD TV
Current Market Price (US $) Current Market 2000
0 0 20406080 Display Size（inch） Japanese Major Electric Household Appliance Store’s HomePage (yodobashi.com,biccamera.com etc) as of Jun.9.2004 17 Price Trends of HDTV Receiver in USA
12000 CRT (with Digital tuner) CRT (without Digital tuner) PDP (with Digital tuner) 10000 PDP (without Digital tuner) LCD (without Digital tuner) Rear-Projection TV (with Digital tuner) Rear-Projection TV (without Digital tuner) 8000 系列1 系列2 系列3 系列4 6000 系列5 系列6 系列7 系列8 4000 系列9
Current Market Price (US $) Current Market 2000
0 0 20406080
Display Size（inch） BestBuy.com as of Aug.12.2004 18 Digital TV ~Home gateway to the ICT society~
お問合せは高齢介護課 介護保険 E-Government Service××××－×××× Captioning 市役所からの 訪問看護 お知らせ 公共施設予約 福祉用具貸与 Home doctor
北海道の夏はラベンダーの Contents Broadcasting 香りで始まります
Metadata
On-Line Shopping
商品説明 Home Gateway
購入する （はい）
Mobile Broadband Home Network Reception Emergency Alert System Internet Homepage
19 PolicyPolicy andand StrategyStrategy forfor DTTBDTTB Policies and Bottleneck for DTTB
¾ Assign 6MHz channels for incumbent terrestrial broadcasters ¾ Simulcast of Analog, but something more values ; i.e. HDTV, SDTV multichannels, datacast, etc ¾ Different and additional value more than satellite digital TV (SDTV more channel) ¾ Digital Television set as integrated home information terminal ¾ Massive reallocation of existing relay station channels
21 Example of New lifestyle for Viewers
HDTV Multiple programs
Data broadcasting Mobility Merits
2
Advanced captioning etc. Interactive TV
Summer in Hokkaido is …
22 Schedule for Digital Broadcasting in Japan
2003 2004 2005 2006 2007 - 2010 2011 2012- Terrestrial ▲ Analog Discontinuation of analog broadcasting broadcasting (July 24th)
3 main areas ▲ ▲ Terre- Start Full power strial December 1st at the end of year Digital broad- Other areas ▲ casting Broadcasting to start in all prefectures by December
▲ BS Satellite Analog Analog (since 1989) Discontinuation of 12 million subscribers (25%) including Cable reception analog broadcasting BS Satellite Digital (7HDTV channels) Digital (since 2000) 5.25 million subscribers (10%) including cable reception CS Satellite Digital (150 SDTV Digital (since 1996) channels) 3.5 million subscribers (7%) 23 Implementation Schedule of Digital Terrestrial Television Broadcasting in Japan
Dec 1.st 2003 StartStart ofof DTTBDTTB !! (Tokyo, Nagoya, Osaka) Apr. 2003 Provisional licenses were awarded
Feb.2003 Start of Analog channel relocation
Sep. 2002 MPHPT established license conditions and requirements
1999-2003 Real Scale Experiment Broadcasting
1999 MPT established technical standard 1998 Issue of Digital Broadcasting Study Group Report
1994 MPT asked to Council for technical requirement 24 Conditions and Requirements for DTTB licensee in Japan
¾Over 2/3 simultaneous as analog per day
¾HDTV is more than 50% of all programs
¾Broadcasting using subtitles and commentary
¾Covered same areas as analog
¾Updating the receiver's by data broadcast
25 Expansion of DTTB services
¾ Dec. 1st 2003: Start of Digital Terrestrial Television Broadcasting (DTTB) in Japan (Tokyo, Osaka, Nagoya)
¾ Population coverage of DTTB (households)
Now: 12 million (25%) 2004 17 million (35%) 2005 23 million (48%) 2006 available at all prefectures
¾ The number of shipment DTTB receivers 1.068 million sets as of June 2004 26 Strategy to promote DTTB
• End of Analog Broadcasting; July 2011 mandated by Radio Law • Replace analog receiver into digital by the time • Need of collaborative work among government, broadcasters and industry • Promote DTTB receivers • DTV as integrated home information terminal
27 Action Plan to Promote DTTB
Decision of the “DTTB promotion conference (Oct 31th 2003)
¾ Set objectives for the penetration of DTTB receivers including cable reception ¾ Set objectives for expansion in the coverage rate of digital broadcasting in the three main areas (Tokyo, Osaka, Nagoya) ¾ Action items for government, broadcasters, manufactures, retailers
28 Objectives for the penetration of terrestrial digital broadcasting receivers (households) 5000 Penetration into 4500 48 million 4000
3500
3000 Penetration into 2500 24 million 2000 Beijing Olympics 1500 Penetration into (10,000 households)
Number of households Number of 1000 10 million
500 World Cup held in Germany 0 2003 2004 2005 2006 2007 2008 2009 2010 2011 Year End of analog broadcasting 29 ISDB-T system
Band Segmented OFDM : Orthogonal Frequency Division Multiplexing
Features 6MHz • Modulation: DQPSK, 13 Segments QPSK, 16QAM, 64QAM 1 segment 429KHz • 1HDTV or 3 SDTV/channel
• Net data rate: 23.42Mbps ( 6MHz)
• Single Frequency Network
Frequency • Mobile reception (time interleaving)
30 Segmented Structure and Partial Reception
HDTV + mobile reception within one 6MHz channel
Layer A Layer B Sound/DATA HDTV ( or 3 SDTV )
13segments (6MHz bandwidth)
Mobile reception HDTV reception 31 DTTB Standards
Technical Standards for DTTB ARIB: established Association of Radio ARIB STD-B32 image encoding, sound Industries and Businesses encoding and multiplexing formats 2001.5 ARIB STD-B24 Data broadcasting encoding Private standardization formats and transmission formats 1999.10 body in Japan ARIB STD-B25 Restricted reception formats 1999.10 ARIB STD-B10 Program lineup information 1997.6 ARIB STD-B31 2001.5 transmission formats ARIB STD-B21 receiver device 1999.10
ARIB TR-B14 Terrestrial TV 2002.1 operation specification
32 ServiceService FeaturesFeatures ofof DTTBDTTB HDTV as thruster of digital TV ● High- Definition programs Pure HDTV: produced by HDTV 1080i format ¾ NHK provides pure HDTV more than 90% of all programs in the three metropolitan Area. Prime time : more than 90%
¾ Commercial Network stations provide pure HDTV about 50% of all programs in Tokyo Area.
Prime time : more than 50%
34 Broadcasting to Portable Terminals
Example : modulation 16QAM code ratio 1/2 TV program guard interval 1/4 bit rate 630 kbps BML DATA
13 segments(6MHz)
1 segment An example of KDDI
Prototype of Mobile Phone receiver (May, 2004)
35 Implementation Schedule toward portable reception of DTTB
¾Video compression system: MPEG4 AVC/H.264 ¾Patent agreed in March 2004 ¾Prototype receivers already developed by manufactures ¾Service will start in late 2005 ¾TV viewing on Cellular phone while commuting
36 HDTV mobile reception (1)
Analog Broadcasting
Digital Broadcasting
HDTV Broadcasting Data Broadcasting
Demonstration will be provide at ITS World Conference in Oct. 2004 in Nagoya 37 HDTV mobile reception (2)
Broadcasting station HDTV mobile reception for bigger screen in buses and trains
Direct Wave Reflection Wave
Mobile Receiver
Gain Control Decoder
Adaptive Array Antenna on the vehicle's window Antenna Gain Control Technique 38 Data Broadcasting
All DTTB Broadcasters and BS Broadcasters providing Data broadcasting (datacast) now
Program related information Anytime news Weather information Report of sports game etc,
Features Currently the description language is BML format Easy creation of contents
BML Facilitate convergence Based on of internet Functions for XHTML Broadcasting
XHTML Additional capability
39 Example for Data Broadcasting (1) TopTop menumenu
40 Example for Data Broadcasting (2) WeatherWeather newsnews
41 Example for Data Broadcasting (3) ProgramProgram relatedrelated datadata
42 Interactive Broadcasting
Broadcasting station Home
Program + data
Interactive Response
Request Internet Send a request Internet
Contents server / Portal server Join the Quiz show by voting Purchase on TV shopping
43 Interactive data service
NHK Data Online service available from April 2004
DTTB receiver
BML data via Broadcasting BML data via Internet
Top menu of Data broadcasting NHK Data Online image
Access to NHK Data server
44 Server-type Broadcasting System
Broadcasting station Home
Program by Air transmitting
External storage Pick up favorite Pictures
Storage
Home server with large capacity storage Service coming soon 45 System model of Server-type broadcasting
broadcaster
Contents Viewer Metadata Server-type receiver
＋ Metadata Conditional Access
Encrypt Contents Broadband Metadata Storage Network Storage of Encrypted contents Certification and charging through Network
46 E - government service trial using DTTB Local governmental information service using datacast of DTTB ( Gifu prefecture in 2004 ) BroadcasterBroadcaster
GifuGifu DataData CenterCenter DTTB What’s new
Internet Q&A
Public Facility Library Reservation Information
LocalLocal authorityauthority MonitorMonitor householdshouseholds (approximately(approximately 150150 households)households) 47 Home doctor by Digital Broadcasting
Internet
Satellite CAS by B-CAS card Insert B-CAS card
Digital Receiver ●ビーキャス カード
Digital BS 地上波 Terrestrial Cancel the scramble
Mandatory equipped Digital Not insert B-CAS card Digital interface Output
Not cancel the scramble DVR Copy control
In operation from April 2004 49 WorldWorld TrendTrend ofof DTTBDTTB Digital Terrestrial TV in the World
EU Asia Pacific UK, Germany, Sweden, USA, Canada, Australia, Finland, Spain etc. Korea, Japan Regulatory New license Give 6(7)MHz to framework -Multiplex incumbent analog -Program (4-6 programs in operators 1 multiplex) Simulcast requirement Services Pay TV or Free to air Free to air More channels, no HDTV HDTV STB Integrated digital TV set System DVB-T ATSC (USA, Canada, Korea) ISDB (Japan) DVB-T (Australia)
51 HDTV as mainstream of digital TV country HDTV requirement and service
USA No mandatory requirements Major terrestrial TV network started HDTV in primetime Satellite and cable operators started HDTV service Canada Market driven but emphasis on HDTV in CRCT licensing policy in 2002 Satellite, Cable and terrestrial TV providing HDTV Australia HDTV requirement: 20 hours per week, from July 2003 (including up-converted HDTV)
Korea HDTV requirement: 14 hours per week for pure HDTV Japan HDTV requirement: more than 50% (including up- converted HDTV) NHK-G providing 90% pure HDTV
52 Summary
• Digital Terrestrial TV should have more values than multi- channels; i.e. pure HDTV, datacast, interactive service, mobile reception. • All Digital Terrestrial TV broadcasters are providing such services • All in one HDTV sets are available in the market as thrusters of digital market. • 1.2 million of HDTV sets with digital tuners are in the market. Furthermore, 0.3 million digital cable STB, more than 3 million HDTV without digital tuners. The largest penetration in the world • Collaborative work among government, broadcasters, industry to promote DTTB
53 Reference
MPHPT http://www.soumu.go.jp/joho_tsusin/eng/ Hiroshi ASAMI Director, Broadcasting Technology Division, MPHPT [email protected]
DiBEG (Digital Broadcasting Experts Group) http://www.dibeg.org/ Mail to:[email protected] 54