Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Presentation 3 Current Situation and Prospect of Digital Terrestrial Broadcasting in Japan Feb. 12, 2003 TVRI seminar in Jakarta Yasuo Takahashi Director of DiBEG Seminar working Group (Toshiba) 1
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Contents •Outline of Digital Broadcasting Service •Dec. 2003, launch the digital terrestrial broadcasting in 3 area -Step by Step Enlargement of cover area -Examples of Broadcasterer’s Equipment -Future Plan •Expectation for Digital Broadcasting in Near Future •Future Deployment •Reference: Scenario for digitalization of Broadcasting 2
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Outline of Digital Broadcasting Service •High quality TV(no ghost, no noise) •1 channel HDTV service •Multi-channel SDTV •High quality Sound/Multi-lingual service •Data Broadcasting •EPG: Check program guide easily •Mobile reception - now on development stage •Portable reception service - in near future 3
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Digital Terrestrial Broadcasting Licensing Policy 1 Segments: 12 X o’clock • Form of Broadcasting Supplemental – HDTV/SDTV +supplemental HDTV(*) broadcast broadcasts (data broadcasting) (Movie) Supplemental broadcast • HDTV programming ratio – 50% or higher (in one week) Supplemental Supplemental Supplemental broadcast broadcast broadcast SDTV SDTV(*) SDTV • Simulcast ratio (Basebal (News) (Music) l relay) – Over 2/3 of programming is shared with analog Supplemental broadcasting. HDTV(*) broadcast (Drama) An example of a broadcast form is shown on right. Supplemental broadcast HDTV(*) (Information-related programs) * Simulcast of analog service O n e s e g me n t s e r v i c e f o r p e r s o n a l 4 d i g i t a l a s s i s t a n t s
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Examples of Business model of terrestrial digital broadcasting T h e l i c e n s e p o l i c y a n d s e r v i c e The basic function Basic service Service model(example) i m a g e f o r D T T V i n J a p a n of DTTB Conventional TV broadcast High-quality TV - clear picture without ghost - Clear picture quality even though SD and high- and/or noise quality sound for CM and TV program 1 segment - Home-theater with wide screen/high quality picture 12 segments Multi- SD TV - Simultaneous broadcast (standard and sound Semi- HD by 480p quality ) of max. 3 channels - Multi-lingual and/or stereo -Movie and sports event with 5.1 surround audio Time Supplement Supp -semi- HD broadcast max. 2 channels H D lemental - The clear sound fas same HD or Multi-SD Digital cinema business Digital cinema related High-quality and al br quality as CD business broa multi-functional oadcast - The digital cinema production by 24P SD1 SD2 - 5.1 CH surround Supp Supplement sound broadcasting and/or 30P ast lemental -High definition TV on large -Contents production for multi-use( Supplement Sup lemental al HD broadcasting screen by 1080i and 720p system movie, TV and DVD, broad-band, etc.) broa br oadcas ast H D al br broa -e-cinema theater business oadcast - The supplemental information ast - Data-broadcasting business Data service by text and picture broadcast Complement broadcast Complement SD1 SD2 SD3 (a supplemental broadcasting, broadcasting - By-directional service with Inter-net CM- linkage data service,Program- linkage data service) - 1 segment simulcast TV and/or supplemental -Mobile broadcasting business service which transmission system is robust Mobile SD1 (mobile-phone, portable terminal) against fading and multi-path of mobile reception broadcasting - By-directional service with mobile-phone network - 70 million users in Japan- The world of - anytime, anywhere- cellular phone - I-mode, FOMA - Internet broad-band business -Co-operate with Internet - Mobile phone information service The world of the business - Bi-directional/multi-functional service Internet 5 -Broad-band (ADSL, fiber to the home)
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Example of Menu Screen(BS Digital) TV newspaper HDTV main Weather headlines channel Favorite channels Programs in Audio Program E-mail “ ” home server services table 6
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g Multimedia EPG E x p e r t s G r o u p (Electronic Program Guide) 7
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Program Related Information 8
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Anytime News 9
Ｄ ｉ Ｂ Ｅ Ｇ Service image of TV-asahi bi- D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p directional trial data service TV Asah TV Asahi Digital Terrestrial ( 2 ) Broadcasting mail serve il server Inter-net Inter-net ( 3 ) mail mai Mobile p Mobi phon one ④ ｝ Digital TV Digit l TV receiver receiver ( 1 ) com ･ ANB. AN B.co plete! plete! TV-asahi com.Plete! is the official portal site access from mobile phone. From this site, contents/ information of Tv-asahi TV program can be downloaded and participate to some variety program to which audience can be joined Picture of data broadcasti Picture of d ta broadcasting ng 10
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Dec. 2003 Launch the Digital Terrestrial Broadcasting in 3 area 11
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Step by Step Enlargement of Cover Area Digital Terrestrial Broadcasting has start in 3 area (Tokyo(Kanto), Nagoya(Tyukyo), Osaka(Kansai) on Dec. 1, 2003 At early stage, transmitter power is suppressed to avoid interference to analog TV channel, but step by step increase the transmitter power and finally reach to full power operation. In other area, Digital terrestrial broadcasting will start during 2004-2006. 12
Ｄ ｉ Ｂ Ｅ Ｇ The area which will start terrestrial digital television D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p broadcast in December, 2003 ( S o u t h w e s t i s l a n d s ) Kanto wide area Kinki wide area Chukyo wide area ( I z u a n d O g a s a w a r a i s l a n d s ) 13
Ｄ ｉ Ｂ Ｅ Ｇ Stage ｂ ｙ Stage Enlargement of DTTB D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Service Area(1/3) Kanto wide Area Dec.1st,2003 Dec.1st,2003 NHK General Should be covered by translator NHK Educational by 2008-2009 Private Network （ ６ ） End of 200 ４ End of 200 ４ Tokyo Tower Tokyo Tower NHK General NHK Educational Private Network （ ６ ） End of 200 ５ End of 200 ５ (maximum output) (maximum output) All Broadcasters 14
Ｄ ｉ Ｂ Ｅ Ｇ Stage ｂ ｙ Stage Enlargement of DTTB D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Service Area(2/3) Chukyo wide Area Dec.1st,2003 Dec.1st,2003 Should be covered by translator NHK and Private by 2008-2009 Network Seto tower End of 200 ５ End of 200 ５ (maximum output) (maximum output) NHK and Private Network 15
Ｄ ｉ Ｂ Ｅ Ｇ Stage ｂ ｙ D i g i t a l B r o a d c a s t i n g Stage Enlargement of DTTB E x p e r t s G r o u p Service Area(3/3) Kinki wide Area Dec.1st,2003 Dec.1st,2003 NHK and Should be covered by translator Private Network by 2008-2009 End of 200 ４ End of 200 ４ NHK and Private Network End of 200 ５ End of 200 ５ Ikoma Mt. (maximum output) (maximum output) NHK and Private Network 16
Ｄ ｉ Ｂ Ｅ Ｇ D i g i t a l B r o a d c a s t i n g E x p e r t s G r o u p Examples of Broadcasterer’s equipment Master system : During analog simulcast period, Master system should treat both analog TV program and Digital TV program simultaneously. -Show the outline of TV Tokyo master system as an example Transmitter : Digital Transmitter should be separately prepared. - Show the block-diagram and out-of-view of Tokyo tower transmitter as an example Antenna : 3 area starting at Dec. 2003, analog TV channels are mainly located in VHF Band, therefore, antenna for Digital Broadcasting should be prepared separately. -Show the out-of-view of Tokyo tower as an example 17
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