Digital Terrestrial Television Service and TV Sets in Japan
September September 2323, 200, 20055Atsumi SUGIMOTOAtsumi SUGIMOTO
DiBEG@ARIBDiBEG@ARIB
[email protected]@mud.biglobe.ne.jp
SET2005@São Paulo 2DiBEGDigital Broadcasting Experts Group
Contents
• Current situation of DTTB service in Japan
• Current situation of DTTB sets in Japan• One-segment DTTB• New Products• Summing-up
SET2005@São Paulo 4DiBEGDigital Broadcasting Experts Group
Schedule of Digital Broadcasting in Japan
1996
Tokyo, Osaka, Nagoya
Satellite(BS)
Cable
Terrestrial Terrestrial
Pilot trial
2000 2005 2010Satellite
(CS)
2001
20031998~2003 2006
Others2011
Analog
Analog/Digital Fully digital
Target of end
Analog2011
1996
End of Analog HDTV End of Analog SDTV
2007
SET2005@São Paulo 5DiBEGDigital Broadcasting Experts Group
Expansion Schedule for Digital Terrestrial TV
already beganbegan in Jun. 2005
will begin by Dec. 2005
will begin by Oct. 2006
will begin by Dec. 2006
Digital terrestrial television broadcasting service will begin one after another in all prefectural capitals by Dec. 2006.
SET2005@São Paulo 6DiBEGDigital Broadcasting Experts Group
Households Coverage
• On December 1st 2003, Digital Terrestrial TV started in three metropolitan areas (Tokyo, Osaka, Nagoya)
• Households Coverage (percentage of the households which can receive DTTB) increases every year as shown below.– In December 2004: 18 million households (38%)– In December 2005: 27 million households (56%)– In December 2006: 37 million households (77%)
(DTTB is available in all the prefectural capitals)
48 million households in Japan. Industry’s target is that every household has more than one DTTB receiver by 2011.
SET2005@São Paulo 7DiBEGDigital Broadcasting Experts Group
DTTB broadcasters provide HDTV programs at more than 60%
• Licensing Policy for Digital Terrestrial Television Broadcasting– 6MHz channels for digital TV were assigned to existing
terrestrial broadcasters.– Over 2/3 of DTTB programs are the same as programs of
analog TV broadcasting a day. But with some more values;HDTV, SDTV multi-program, datacasting, etc.
– HDTV programs should be televised at more than 50% of broadcasting hours a week.
• Currently・・・All broadcasters are providing pure pure HDTV programsHDTV programs*– NHK broadcasts HDTV programs at about 90% of the time.– Private Network stations broadcasts HDTV programs at
about 60% of the time.
* pure HDTV programspure HDTV programs: : Produced and transmitted by 1080i HDTV format
SET2005@São Paulo 9DiBEGDigital Broadcasting Experts Group
Line-up of DTTB Sets
Screen SizeManuf.
Toshiba
Sharp
Hitachi
Sony
JVC
Mitsubishi
Pioneer
Epson
Sanyo
Panasonic
Nanao
10” 20” 30” 40” 50” 60” 70”
● CRT-TV ▲ LCD-TV ■ PDP-TV ◆Rear PJ △ Analog LCD-TV
SET2005@São Paulo 10DiBEGDigital Broadcasting Experts Group
Price Distribution Map of DTV SetsAs of June 8,2005
0
10
20
30
40
50
60
70
80
10 20 30 40 50 60 70
Screen Size (inch)
Rear PJRear PJ
PDPPDP
CRTCRT
LCDLCD
Current M
arket Price (U
S$)
Small Screen Size LCD-TV Setswithout Digital
Tuner
900
1800
2700
3600
4500
5400
6300
7200
1 inch 900US$
SET2005@São Paulo 11DiBEGDigital Broadcasting Experts Group
From JEITAFrom JEITA
00
100100
200200
300300
400400
500500
600600
700700
800800
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May
CRTCRT
PDP + LCDPDP + LCD
20042004 20052005
Num
ber of units [x1000]N
umber of units [x1000]
YearYear
Shipment of Flat Panel Display TV Set Exceeded the Shipment of CRT TV Set.
Shipment of TV Sets
SET2005@São Paulo 12DiBEGDigital Broadcasting Experts Group
0
50
100
150
200250
300
350
400
450
8 9 10 11 12 1 2 3 4 5 6 7
[x1000
]
0
1,000
2,000
3,000
4,000
5,000
6,000
Sum
Total [
x1000]
CRT TV PDP TV LCD TVSTB STB for Cable Digital RecorderSum Total
Shipment Volume of DTTB Receivers
2004 2005
SET2005@São Paulo 13DiBEGDigital Broadcasting Experts Group
Targets on Diffusion and Shipment Volume of Digital Terrestrial TV Receivers
× × ×
As of Dec, 20043,162kset
As of July, 20055,431kset
SET2005@São Paulo 14DiBEGDigital Broadcasting Experts Group
• The latest flat panel display TV sets, which have a screen larger than 22 inch is an all-in-one type .– equipped with both digital tuner (for terrestrial, BS, CS110) and
analog tuner.– HDTV display – Equipped with data broadcasting decoder – Network connection facility (10Base-T)
• 20 million households are using the Broadband (optical, cable and ADSL) in Japan
• Some models have internet web browsing function• The DTTB sets price dropped in the past two years.
– 20%~50%• Low-price simple DTTB Sets will be on the market in the near
future.
Extra Information about DTTB Sets
SET2005@São Paulo 16DiBEGDigital Broadcasting Experts Group
One-segment DTTB
• One channel of DTTB is divided into 13 segments. • One segment is used for mobile TV.
HDTV
Mobile communication/Mobile internet
TV stationTV station
Communication carrier
Cell phone Cell phone with 1with 1--segment TVsegment TV
5.6MHz( 1 channel )
12 Segments
Mobile reception
Fixed reception
SET2005@São Paulo 17DiBEGDigital Broadcasting Experts Group
One-segment DTTB
1 Segment
Example: Modulation QPSK
Code Ratio 1/2Guard Interval 1/8Bit Rate 312 KbpsVideo Compression System;
MPEG4 AVC/H.264
Example: Modulation QPSK
Code Ratio 1/2Guard Interval 1/8Bit Rate 312 KbpsVideo Compression System;
MPEG4 AVC/H.264
13 Segments
Video 180kbps
Audio 48kbps
Data 50kbps
PSI/SI 30kbps
Data broadcastingWireless
Communication
Video
Internet
DataAn example of bit rate distribution
SET2005@São Paulo 18DiBEGDigital Broadcasting Experts Group
Broadcasting
Watching TVprogram on full
screen
Watching TV program and
reading data on TV
Watching TV program and
reading data on Internet
Viewing or reading Internet
Watch TV InternetReading data
BML
NHK NHK
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New services with One-segment DTTB
Reference: NHK documents
Service Model of One-segment DTTB
Communication
TV &Internet
Convergence
SET2005@São Paulo 19DiBEGDigital Broadcasting Experts Group
@CEATEC JAPAN 2004
• NHK,KDDI, Hitachi, Sanyo and Sony demonstrated prototypes of Cellular Phone with a ISDB-T One-Segment Receiver @ CEATEC Japan 2004.
• Toshiba announced SD card viewer with one-Segment Receiver last September.
Sanyo KDDI Hitachi
SET2005@São Paulo 20DiBEGDigital Broadcasting Experts Group
Sanyo Cellular Phone @CEATEC JAPAN 2004
• Sanyo announced one-segment receiver installed in cellular phone.
• Specifications– Diversity reception – UHF 470~716MHz– Multiplexing; MPEG-2 TS– Video coding ; H.264/MPEG-4 AVC, Base
Line Profile L1.2 15fps– Audio coding; MPEG-2 AAC (24.48kHz
sampling)– Data browser; BML and XHTML– Display; QVGA (320x240 or 320x180
2.4inch LCD panel– Recordable on flash memory
128MB=30min – Camera 200mil pixel– Weight; 150g– 800mAh lithium ion battery; 120minuites TV
reception
SET2005@São Paulo 21DiBEGDigital Broadcasting Experts Group
Implementation Schedule of one-segment DTTB
• Pilot broadcasting in progress • Commercial services will be launched in
March 2006.• No additional license is necessary, if
simultaneous broadcasting.
SET2005@São Paulo 23DiBEGDigital Broadcasting Experts Group
• Heritages the Advantages of CRT– High Contrast, Wide Viewing Angle, Clarity of Moving
Objects• Lower Power Consumption
SED (Surface-conduction Electron-emitter Display)
Phosphor
Electron Gun
Deflection Yoke
CRT
Electron Emitter
Phosphor
Spacer
SED
SET2005@São Paulo 24DiBEGDigital Broadcasting Experts Group
SED (Surface-conduction Electron-emitter Display)
• SED is one kind of FED (Field Emission Display)• Toshiba has been developing a SED, in collaboration with Canon Inc.• A 36-inch (visual size) prototype SED (1,280×768pix) was exhibited
at CEATEC JAPAN 2004 in October 2004. • Based on the same light-emitting principle as the cathode ray tube
(CRT), the SED inherits the reputable picture quality of the CRT but with improvements in sharpness and other characteristics.
• SED brings the image quality of the traditional cathode-ray tube (CRT) to flat panel displays.
• Delivering bright, high resolution images offering high contrast, high gradation levels, fast responsiveness and low power consumption.
• Toshiba started to mass-produced 50” SED panel in August.• Toshiba intends to sell SED DTV receiver by the end of the first half of
next year.
SET2005@São Paulo 25DiBEGDigital Broadcasting Experts Group
Characteristics Comparison between CRT-TV and Flat Panel Display-TV
CRT LCD PDP OLED SED
Luminance (peak white) ◎ ○ ○ ○ ◎
Luminance (full white) ○ ◎ △ △ ○
Contrast ratio (dark ambience) ◎ △ ○ ○ ◎
Contrast ratio (bright ambience) ○ ◎ △ ○ ○
Resolution △ ◎ ◎ ○→◎ ◎
Number of Gradation ◎ △ ○ △ ◎
Reproducibility of Color ○ △ △ △ ○
Quality of Motion Picture ◎ △ ○ ○ ◎
Viewing Angle ○ △ ○ ○ ○
Power Consumption △ ○ △ ◎ ◎
Burn-In ○ ○ △ ○ ○
Lifetime ○ ○ ○ △ ○
Toshiba’s evaluation:
◎ Very good ○ Acceptable △ Not so good
SET2005@São Paulo 26DiBEGDigital Broadcasting Experts Group
In-vehicle DTV tuner
• Panasonic began the sales of DTV tuner which is loaded into the car navigation system, from June 10th,2005.
• The following car navigation systems have special interface for the DTV tuner.
DTV tuner Diversity Antenna(sold separately)
11” Wide TV-set(sold separately)
Mitsubishi AlpineFujitsu Ten
SET2005@São Paulo 27DiBEGDigital Broadcasting Experts Group
Mobile Reception in Toyama City
KNB is demonstrating HDTV reception on a tram
From June to Dec
Photos of the testReceiver In-tram antenna
SET2005@São Paulo 28DiBEGDigital Broadcasting Experts Group
Summing-up
• Households coverage of DTTB are growing ahead of schedule
• Sales of DTTB sets reached over five millions and will increase rapidly around 2006 in Japan.
• The collaborative effort among government, broadcasters and consumer electronics industry is necessary to stop the analog TV broadcasting in July 2011.
• Commercial services of one-segment DTTB will be launched in the end of March 2006.
• New generation flat panel display, SED, coming soon.