2010 年 民生電子論壇 1 From Digital TV to Digital Convergence 從數位電視到數位匯流

2010 年 民生電子論壇 2 Who I am 官振鵬工研院資通所交通大學電機與控制系博士研究興趣 –Intelligent Robotics –Virtual Reality –Video Processing –DTV Systems –Digital Rights Management

2010 年 民生電子論壇 3 Outlines What is Digital TV Evolution of Specifications What is Convergence

2010 年 民生電子論壇 4 Digital TV

2010 年 民生電子論壇 5 Broadcast Networks for DTV DVB-T/H DAB DVB-C DVB-S IPTV Cable HFC xDSL IP Ethernet Satellite Terrestrial Contents/Services ApplicationsHead-EndReceiverNetworks

2010 年 民生電子論壇 6 Content Distribution System Content Database Network Management Modulator Conditional Access System Content Preparation and Compression Content Preparation and Compression Content Storage and Delivery Content Consumption Components of DTV System

2010 年 民生電子論壇 7 Why Do We Need Digital TV?

2010 年 民生電子論壇 8 Components of Digital Television System Baseband Processing –Video & Audio compression – HE-AAC, H.264, VC-1, … –Teletext, Subtitling, Service Information, Application Signal Transmission and Reception –Multiplexing, Channel Coding –Various Modulations due to Different Media COFDM – DVB-T; QAM – DVB-C; QPSK – DVB-S; VSB – ATSC Conditional Access –Control Access, Guarantee Revenue, Parental Control, Copyright Protection Interactive Services –Attractive Services, Return Channel/Path

2010 年 民生電子論壇 9 Worldwide DTV Standards

2010 年 民生電子論壇 10 Terrestrial

2010 年 民生電子論壇 11 Cable

2010 年 民生電子論壇 12 Satellite

2010 年 民生電子論壇 13 DTV Standards ATSC – Advanced Television Systems Committee DVB – Digital Video Broadcasting ISDB – Integrated Services Digital Broadcasting DMB-T/H – Digital Media Broadcasting-Terrestrial/Handheld

2010 年 民生電子論壇 14 ATSC

2010 年 民生電子論壇 15 Introduction to ATSC – Advanced Television Systems Committee Formed in 1982 Member organizations of the Joint Committee on InterSociety Coordination (JCIC): EIA, IEEE, NAB, NCTA, SMPTE Members representing the broadcast, broadcast equipment, motion picture, consumer electronics, computer, cable, satellite, and semiconductor industries ATSC Digital TV Standards include digital high definition television (HDTV), standard definition television (SDTV), data broadcasting, multi-channel surround-sound audio, and satellite direct-to-home broadcasting

2010 年 民生電子論壇 16 ATSC 8VSB

2010 年 民生電子論壇 17 ATSC Standards (selected) ATSC Standard A/52A – Digital Audio Compression (AC-3) Standard, Rev. A ATSC Recommended Practice A/54A – Guide to the Use of the ATSC Digital Television Standard ATSC Standard A/65B – Program and System Information Protocol for Terrestrial Broadcast and Cable, Rev. B ATSC Standard A/68 – PSIP Standard for Taiwan ATSC Standard A/70 – Conditional Access System for Terrestrial Broadcast with Amendment ATSC Standard A/96 – ATSC Interaction Channel Protocols ATSC Standard A/100 – DTV Application Software Environment - Level 1 (DASE-1)

2010 年 民生電子論壇 18 DVB

2010 年 民生電子論壇 19 Introduction to DVB – Digital Video Broadcasting An industry-led consortium of broadcasters, manufacturers, network operators, software developers, regulatory bodies and others in over 40 countries committed to designing global standards for the delivery of digital television and data services Open, Interoperable, Flexible, Market-led

2010 年 民生電子論壇 20 DVB-T COFDM

2010 年 民生電子論壇 21 DVB Standards (selected) TR V1.4.1 – Implementation guidelines for the use of MPEG-2 Systems, Video and Audio in satellite, cable and terrestrial broadcasting applications EN V1.4.1 – Specification for Service Information (SI) in DVB systems TS V1.2.1 – Digital Video Broadcasting (DVB) Multimedia Home Platform (MHP) TR V1.2.1 – Measurement guidelines for DVB systems TR V1.1.1 – Architectural Framework for the Delivery of DVB Services over IP-based Networks

2010 年 民生電子論壇 22 DMB-T/H

2010 年 民生電子論壇 23 DMB-T/H China DTV standard Developed by 北京清華大學 and 上海交通大學 –Combination of multi-carrier and single-carrier technologies It still remains unclear –All of China's DTVs —fixed and mobile— shall support both the TDS- OFDM and VSB schemes

2010 年 民生電子論壇 24 Evolution of Specifications

2010 年 民生電子論壇 25 Broadcast Fixed Telecom Wireless Telecom DVB started with the aim of delivering DTV services to the home via satellite, cable & terrestrial networks. The consumer was (and is) also served by fixed and wireless telecom networks. DVB also needed to enable interactive television. Thus the MHP middleware specification was developed. Further enabling iTV was the development of return channel specifications using the telecom networks as well as satellite, cable and terrestrial networks. source:

2010 年 民生電子論壇 26 Broadcast Fixed Telecom Wireless Telecom DVB 2.0 DVB in IP IP in DVB DVB → GSM/UMTS... In 2002, the DVB Project launched a new work programme: DVB 2.0 – looking at the delivery of broadcast services over non- traditional networks. source:

2010 年 民生電子論壇 27 Broadcast Fixed Telecom Wireless Telecom DVB in IP IP in DVB DVB → GSM/UMTS... source: DVB 3.0 CBMS Late in 2004 DVB agreed on a new work programme for the future – DVB 3.0 HDTV, HN, CPCM, CBMS, …

2010 年 民生電子論壇 28 Areas of Strategic Importance for DVB 3.0 Convergence of broadcast and mobile services –WiFi, WiMax, LTE –2 G, 3 G, B3G, 4G Convergence of broadcast and IP fixed network services Solutions to support service interoperability across multiple networks and platforms –Content coding –Middleware –Content protection and copy management

2010 年 民生電子論壇 29 In DTV world, no more Programs but Services!

2010 年 民生電子論壇 30 Services Interactive TV Services   Personalized news   Home networks   Push applications   Software distributions   Pay-per-view, video-on-demand   Distance learning   Alerts for schedules, programs, emergency   Enhanced broadcast with embedded information, data   Electronic coupons   Electronic newspapers and magazines   Secondary audio channel   Home banking, financial transactions   Personalized content   Hidden data channels   Impulse buying   Streaming data services   Usage statistics   Electronic program guide   Web browsing   Sports status and scores   Stock ticker   Animation overlay   Games, tournaments   Messaging and   Polls   Interactive stories   GUI look and feel   Presentation styles   Home control and security

2010 年 民生電子論壇 31 Application Synchronized to TV content

2010 年 民生電子論壇 32 Airport Information System

2010 年 民生電子論壇 33 Stock Information and Java Games

2010 年 民生電子論壇 34 MHP Services

2010 年 民生電子論壇 35 Convergence

2010 年 民生電子論壇 36 Convergence?

2010 年 民生電子論壇 37 Real Scenario Who use this service – We, ourselves, everybody, human beings Why – Convenient life – Always connecting and connected Where we use – No matter where we are – Steady, moving, in-door, out-door,... When we apply – 24 hours a day, 365 days a year, every second What we consume – Contents with diversity – Shopping service, entertainment, information, communications,... How we can – Consumers don’t care, that’s your problem –That’s why I got a job

2010 年 民生電子論壇 38

2010 年 民生電子論壇 39 Digital Convergence Convergence really means the freedom for consumers to use any service under any circumstances they choose to Convergence in Contents and Services –Same contents/services can be delivered to different receiving devices via various IP networks –Formats of contents/services are regulated by standards Convergence in Receiving Devices with the same APIs –Various receiving devices can execute the same application with the same middleware APIs –APIs are defined as global standards Convergence in using the same electronic components –Memories, Microprocessors, Middlewares Convergence in IP networks –No matter what physical access networks: xDSL, FTTH, 3G/4G, DVB-T/H/T2, digital cable, satellite, WLAN, WiMax, LTE, …

2010 年 民生電子論壇 40 Digital Convergence: a whole new way of life Digital convergence is increasing the importance of content and services in the ICT sector. For example, television over IP, (fixed and wireless) is already one of the most successful triple-play and 3G services. The digital future is interactive. Digital life in media and services is therefore not just about gadgets but about a whole new way of life.

2010 年 民生電子論壇 41 Convergence in NGN (Next Generation Networks)

2010 年 民生電子論壇 42 OMA BCAST Convergence

2010 年 民生電子論壇 43 ITU-T Convergence

2010 年 民生電子論壇 44 Real Example of Digital Convergence HbbTV – Hybrid Broadcast Broadband TV –A pan-European specification for interactive TV applications for television –Based on existing standards & Web technologies –Provides seamless TV experience across broadcast and broadband –Specification independent from the transmission medium (DVB-T, DVB-S, DVB-C) –IP connection recommended

2010 年 民生電子論壇 45 HbbTV Specifications OIPF –JavaScript APIs for TV environment (e.g. tuning, now/next info, PVR, …) –Media formats –Modifications to CE-HTML CEA –JavaScript APIs for on-demand media –Subset of W3C specifications & image formats –Remote control support (e.g. key events, spatial navigation) DVB –Application signaling –Application transport via DVB (DSM-CC object carousel) –Stream events W3C –XHTML –CSS 2.1, CSS-TV –DOM-2 (including XML Document support) –ECMAScript –XMLHTTPRequest DVB Blue Book A137 CEA-2014 (CE-HTML) HbbTV specification profiles Audio and Video formats Declarative Application Environment extensions subset W3C Specifications

2010 年 民生電子論壇 46 HbbTV Seamless TV Experience

2010 年 民生電子論壇 47 HbbTV Applications Balanced model to support broadcaster and manufacturer interests –Broadcast applications –Broadcast independent applications –Portal applications Example targeted application types –“Red Button” applications Enhanced TV, interactive ads, voting, betting, etc. –Digital text Replacement for traditional teletext services –Broadcast-independent applications Accessed from broadcaster’s application or manufacturer’s portal Catch-up (on-demand) TV, games, photo sharing, etc.

2010 年 民生電子論壇 48 HbbTV Applications

2010 年 民生電子論壇 49 Thank You~

2010 年 民生電子論壇 50 References