ISDB-T, the Digital Television for the Philippines

Presentation 6

"ISDB-T Receiver"
9th - 10th.December.2008 Manila, Philippines DiBEG JAPAN
Hirohiko SAKASHITA (Panasonic Corporation)
Digital broadcasting experts group

Contents

- Reception types of ISDB-T - Introduction of some Japanese ISDB-T receivers
Fixed receivers In-car receivers Portable receivers
- Shipments and diffusion prediction of ISDB-T receivers - Merits of One-Seg - Configuration of a basic receiver - Improvement of reception performance
Introduction of diversity system Experiments of One-Seg diversity reception
-Trends in Price of Japanese ISDB-T receivers
Reception Types of ISDB-T in Japan
One channel of ISDB-T is divided into 13 segments. One segment of them is used for mobile and handheld TVs.
Broadcaster Fixed reception

13 Segments

TV set, STB, Recorder

13 Segments(Full-Seg)

HDTV or multi-SDTV
1 Segment(One-Seg) Portable reception

Mobile reception

Cell Phone, Laptop PC, etc.
Navigation System, In-car TV

Fixed Receivers

PDP TV
VIERA TH-42PZ800 Panasonic

Wooo P42-HR02 HITACHI

KRP-500A Pioneer

LCD TV

REGZA 42H7000 TOSHIBA

AQUOS LC-42XJ1-B SHARP

VIERA TH-20LX80 Panasonic
VIERA TH-15LD70 Panasonic

BRAVIA KDL-40X1 SONY

LCD-32FX300K SANYO

AQUOS LC-16E1 SHARP

AQUOS LC-13SX7 SHARP

Fixed Receivers(Cont.)

HDD/DVD Recorder

Blu-ray

RDZ-D800 SONY

DIGA DMR-XW120 Panasonic

BDZ-X100 SONY

VARDIA RD-X8 TOSHIBA

DVR-DW200 MITSUBISHI

DIGA DMR-BW930 Panasonic

Cable STB

TU-MHD600 Panasonic

DT400 MASPRO

TZ-DCH1820 Panasonic

Desktop PC
22 inch (1680x1050) 22 inch (1680x1050) 20.1 inch (1680x1050)

VALUESTAR W VW790/RG NEC

FMV-DESKPOWER LX70W/D FUJITSU
Prius One type W AW37W5U HITACHI
Notebook PC (medium-large size)

15.4 inch (1280x800)

17 inch (1440x900)

17 inch (1920x1200)

LaVie L LL970/HG NEC
FMV-BIBLO NX95W/D FUJITSU

Qosmio G40/95C TOSHIBA

In-car Receivers

Navigation System

Full-Seg/One-Seg

Tuner separated model

Portable Navigation Device

One-Seg Only

Strada CN-HDS965TD Panasonic

All-in-one model

AVIC-VH099G Pioneer One-Seg Only

Full-Seg is Optional

Mini GORILLA NV-SD10DT SANYO

In-Car TV

HS706D-A NISSAN/SANYO GORILLA NV-HD830DT SANYO CAV-TD85D1 SANYO

Portable Receivers

Cell Phone
W64T 23 models are available at the end of Sept, 2008
SO906i 31 models are available at the end of Sept, 2008
824T 12 models are available at the end of Sept, 2008
Portable Receivers(Cont.) One-Seg Only
DVD Player Laptop Adapters(USB, etc.)

DVD-LX87 Panasonic

DVD-HP700ND SANYO

VAIO type T SONY

Many products are on sale. BUFFALO, IO DATA, etc.

Audio Player

Dictionary

Portable TV

gigabeat V30E TOSHIBA

Papyrus PW-TC900 SHARP

XDV-100 SONY
Shipment Volume of ISDB-T Receivers
0 03/9 04/3 04/6 04/9 05/3 05/6 05/9 06/3 06/6 06/9 07/3 07/6 07/9 08/3 03/12 04/12 05/12 06/12 07/12 08/6 PC Cable STB STB Recorder LCD TV PDP TV CRT TV
Total until August, 2008 38,808 (thousand units) PC Cable STB STB Recorder LCD TV PDP TV CRT TV 1,196 5,6,851 20,453 3,194 722

Receivers only for One-Seg and in-car receivers are not included. Source: Japan Electronics and Information Technology Association (JEITA)
Shipment Volume of Cell-phone w. One-seg Rcv.
Cellphone w One-seg One-seg ratio 50
Total until July, 2008 39,712 (thousand units)
06 /06 /07 /////07 /08 ///6
Source: Japan Electronics and Information Technology Association (JEITA)
Diffusion Prediction of ISDB-T Receivers
The cumulative total of sales until 2011 will be 117 million units.
100 million units Year PC Cable STB Recorder STB TV Set
Receivers only for One-Seg and in-car receivers are not included. Source: Japan Electronics and Information Technology Association (JEITA) Digital broadcasting experts group
Diffusion Prediction of One-Seg Cell Phones
A certain research institute has reported diffusion prediction of One-Seg cell phones. About 30% of cell phone users will have One-Seg cell phones in 2010.
40, 000 35, 000 30, 000 27, 610 t housand peopl e 25, 000 20, 000 15, 000 10, 000 7, 870 5, 2010 2, 940 18, 350 34, 800
Source: Yano Research Institute Ltd., Japan

Merits of One-Seg

High quality video & audio in a mobile environment
Robustness to noise and multipath
Stable reception in a mobile environment
Easy to put the function on portable terminals
One-seg receivers need lower cost, smaller devices, lower power consumption, and lower CPU power than Full-seg receivers.
Various portable terminals get possible to have TV function.
Tuner Modules for One-Seg
Maker Model/Type Announcement date Feature ALPS TDPJ Mar. 2006 ALPS TSL Nov. 2006 High durability for automobile environments 25.0x15.2x2. 1 MURATA SUMUDDJLS101 Sep. 2006 SHARP VA35JZJan. 2007 Low power consumptio n MITSUMI DVT7-J11D Feb. 2007 Panasonic CTMW02 Mar. 2007

Small size

Diversity reception

Size(mm)

9.5x9.5x1. 7

8.7x9.6x1.5 5

9.0x9.0x1.5

8.9x8.9x1. 5

12.5x16.5x1.95 100(low power mode) /115(normal mode) single mode -109(single mode) /-112(diversity mode)

Power consumption (mW) Minimum input sensitivity (dBm,1segment bandwidth, QPSK1/2)

-107.5

Improvement of One-Seg Cell Phones
Model Released date Size(mm) (when closed) Weight(g) (with battery) Display
International Roaming Continues Call time(min) Continuous watch time for One-Seg
P901iTV Mar. 2006 110x51x2.5inch QVGA (240x320) 3G 145 3h
P903iTV Feb. 2007 110x50x2.8inch Wide QVGA (240x400) 3G 195 7h
P906i June 2008 108x50x17.3.1inch Wide VGA (480x854) 3G / GSM 200 6h
Hardware Components of a Basic Receiver
Flows of signal and data AAC RF
TS OFDM Decoder MPEG2 IF Demodulator TS /Demux
H.264 Caption Data Carousel
Audio Decoder Video Decoder

Display Processing

Audio OUTPUT Video OUTPUT
System Bus Remote Controller Key Command

NVRAM (Flash mem)

RAM ROM (Font, etc.) (Main memory)
Communication I/F Phone Line, LAN, etc.
Between a Full-Seg receiver and a One-Seg receiver, the basic configurations are about the same, though there are some differences such as a tuner, video decoder, resolution of display and so on.
RF Radio Frequency IF : Intermediate Frequency TS : Transport Stream Demux : Demultiplexer NVRAM : Non-volatile RAM
Functional Block Diagram of the Front-end
Reed-Solomon Decoding Reed-Solomon Decoding Energy Dispersal Energy Dispersal Byte De-interleave Byte De-interleave Viterbi Decoding Viterbi Decoding TMCC Decoding TMCC Decoding Bit De-interleave Bit De-interleave Demapping Demapping Symbol Synchronization Symbol Synchronization Time De-interleave Time De-interleave Frequency De-interleave Frequency De-interleave Channel Estimation Channel Estimation and Equalization and Equalization FFT FFT A/D Conversion A/D Conversion IF Signal Frame Synchronization Frame Synchronization
Clock Regeneration Clock Regeneration
Down Conversion Down Conversion RF Signal
FFT : Fast Fourier Transform TMCC Transmission and Multiplexing Configuration Control
Functional Block Diagram of the Back-end

PSI/SI processing

Application Execution Engine MHP/ARIB-J
Not currently operated in Japan

Section filter

DSM-CC Data carousel processing
Presentation Engine (BML Browser)
Blending TS PID filter Caption Decoder PES processing PCR

Video Decoder

Scaling

Audio Decoder

PID : Packet Identifier PES : Packetized Elementary Stream PCR : Program Clock Reference PSI/SI : Program Specific Information/Service Information DSM-CC : Digital Storage Media - Command and Control BML : Broadcast Markup Language
Functional Block Diagram of BML Browser
Event Manager / Total Management

Presentation Manager

Document Manager (DOM / CSS)

ECMAScript Interpreter

External Events

Still Image Decoder

XML Parser

CSS Parser

ECMAScript Compiler
Built-in Objects (Basic / Extended)

Browser Pseudo Objects

Content Manager (Broadcasting Content / Communication Content)
External Functions (Data Carousel, Communications, NVRAM, Key, Graphics, Fonts, Sound, etc.)
Basic Applications on ISDB-T Receivers
- Frequency scanning / Channel list - Channel selecting - Audio/Video playing back - EPG (Electronic Program Guide) - Closed Caption / Subtitle - Data Broadcasting (BML) - Interactive service etc.
Mobile Reception Environment
1. 2. 3. 4. Lower electric field strength because of low antenna height (Approx. 10dB down) Smaller antenna gain because of a nondirectional antenna (Approx. 10dB down) Greatly affected by multipath fading because of mobile reception Doppler shift because of high-speed movement
Directional antenna Ground height 10m

Building, etc.

Fixed reception
Reflected wave Direct wave
Nondirectional antenna Ground height 1.5m

Station

Moving at high speed
Improvement of Reception Performance
Improvement of a reception sensitivity with a single antenna almost reaches the limit.
Diversity reception techniques are expected to improve total reception sensitivity. In fixed reception, diversity effect is 3dB at maximum. But in mobile reception, e.g. in-car TVs or cell phone TVs in a car or train, the effect reaches 6 - 8 dB.
Overview of Diversity System
Ripples are generated because of multipath reception.

Direct wave

Reflected wave Multipath

RF Tuner RF Tuner

Channel Estimation and Equalization Channel Estimation and Equalization

Selecting or Combining

Demapping
2-Diversity System(4 Antennas and 2 Tuners)

Less complex than 4-tuner diversity system. Higher-sensitive than conventional 2 antenna-diversity system

switch

RF Tuner RF Tuner FFT Channel Estimation and Equalization Combining FFT Channel Estimation and Equalization
4-Diversity System(4 Antennas and 4 Tuners)
4-diversity system improves the reception performance more than conventional 2-diversity system, though the process becomes more complex. RF Tuner RF Tuner RF Tuner RF Tuner FFT Channel Estimation and Equalization Channel Estimation and Equalization Channel Estimation and Equalization Channel Estimation and Equalization Combining
Experiments of One-Seg Diversity Reception
Experiment 1 : Field test A) The upper terminal is using single antenna reception system. B) The middle terminal is using diversity reception system of SANYO. C) The lower terminal is using diversity reception system of a certain company.
Experiment 2 : Laboratory test A) The left terminal is using diversity reception system of SANYO. B) The right terminal is using diversity reception system of a certain company.
Diversity Reception System for Cell Phones
Diversity systems are applicable to cell phones as well as in-car receivers. Now, only one product, P903iTV, is equipped with diversity system. It has two antennas for One-Seg, a whip antenna and an internal antenna.

Retractable Whip Antenna

Internal Antenna
Change in Price of Major Flat Panel Displays (FPD)
Launched digital terrestrial television

6,203 U.S.$

6,000 5,000
LCD 37-inch PDP 42-inch CRT 32-inch

5,743 U.S.$

Price (US$) 4,000 3,000 2,000 1,Dec. Mar. Sep. Mar. Sep. Mar. Sep.

1,565 U.S.$

1,113 U.S.$

Mar. Sep.

Price (U.S.$)
16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,0
Distribution of LCD Price
Sep 2007 Sep 2006 Sep 2005 Sep 2004

Prices are going down!

Varied LCD Digital Receivers
PHOTO TYPE ORION LD15V-TD1 (15-inch) Victor-JVC LT-20LC8-S (20-inch) TOSHIBA 37C3500 (37-inch) SHARP LC-46GX2W (46-inch) PRICE 44,850 JPY (388 U.S.$ ) 59,800 JPY (517 U.S.$ ) 135,800 JPY (1,175 U.S.$ ) 225,800 JPY (1,953 U.S.$ ) URL http://www.orionelectric.co.jp/jp/produc ts/index.html http://www.jvcvictor.co.jp/tv/lt20lc8/index.html http://www.regza.jp/pr oduct/tv/lineup/c3500/c oncept.html http://www.sharp.co.jp/ aquos/lineup/gx2/index.html

Distribution of PDP Price

20,000

16,000

12,000

Varied PDP Digital Receivers
PHOTO TYPE HITACHI P37-H01 (37-inch) bydsign PH-5000DFK (50-inch) PRICE 123,900 JPY (1,072 U.S.$ ) URL http://av.hitachi.co.jp/tv /plasma/01/index.html
239,800 JPY (2,074 U.S.$ )
http://www.bydsign.jp/ Form/Product/ProductD etail.aspx?shop=0&cat= 101&swrd=&pid=PH5000DFK&vid= http://panasonic.jp/viera /products/pz750/index.h tml
Panasonic TH-65PZ750SK (65-inch)
719,800 JPY (6,227 U.S.$ )
High-Performance Set Top Box
PHOTO TYPE Panasonic TU-MHD600 SONY VGF-DT1 SHARP TU-HD200 MASPRO DT400 PRICE 45,800 JPY (396 U.S.$ ) 42,987 JPY (372 U.S.$ ) 28,489 JPY (246 U.S.$ ) 27,842 JPY (241 U.S.$ ) URL http://ctlg.panasonic.jp/ product/info.do?pg=04 &hb=TU-MHD600 http://www.ecat.sony.c o.jp/vaio/acc/acc.cfm? PD=26654 http://www.uniden.jp/s upport/manualdl.html
http://www.maspro.co.j p/new_prod/dt400/dt40 0.html
These products also correspond to BS and CS digital broadcasting services.

Low-Price Set Top Box

PHOTO TYPE AVOX YDIT-10 YAGI DTC10 MASPRO DT610 I-O DATA HVT-ST200 PRICE 15,213 JPY (132 U.S.$ ) 16,097 JPY (139 U.S.$ ) 17,444 JPY (151 U.S.$ ) 19,300 JPY (167 U.S.$ ) URL http://www.cmex.co.jp/tuner.html
http://www.yagiantenna.co.jp/products/ home/tuner/index.html http://www.maspro.co.j p/products/dt610/tokut yo.html http://www.iodata.jp/pr od/multimedia/tuner/20 06/hvt-st200/
Prediction of Analog TV Persisting in 2011

(unit thousand)

120,000

Digital TV

Analog TV

100,000

80,000
46,820 58,170 68,120 78,120 85,800

35,430

60,000

40,000

61050 49660
About 35 million analog TVs will be persisted in Japan by 2011, when transition of analog to digital broadcasting will be completed, especially in the field of public institution (e.g. schools, hospitals, and nursing homes etc.).

Conclusions

Since 2003 various ISDB-T products, fixed, in-car and portable receivers have been launched in Japan. Consumer adoption of ISDB-T receiver is growing at a rapid pace for 2011 when analogue TV broadcasting will end in Japan. About 30% of cell phone users will have One-Seg cell phones in 2010 in Japan. For mobile reception, diversity techniques are very effective to improve the reception performance.