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高畫質電視的服務及應用趨勢高畫質電視的服務及應用趨勢

官振鵬 [email protected]


Broadcast NetworksBroadcast Networks

DVB-T/HDAB

DVB-C

DVB-S

IPTV

CableHFC

xDSLIP Ethernet

Satellite

TerrestrialContents/ServicesApplications

Head-EndHead-End ReceiverReceiverNetworksNetworks


Components of Digital Television SystemComponents of Digital Television System

ContentsCompression and Encoding

Modulation

Conditional Access

Network Management


Components of Digital Television SystemComponents of Digital Television System

Baseband ProcessingBaseband Processing

Signal Transmission and ReceptionSignal Transmission and Reception

Conditional AccessConditional Access

Interactive ServicesInteractive Services

MiddlewareMiddleware


Baseband ProcessingBaseband Processing

MPEG-2 Video, Audio,…MPEG-2 Video, Audio,…

MPEG-4 Video, AAC, HE-AAC, H.264, VC-1, …MPEG-4 Video, AAC, HE-AAC, H.264, VC-1, …

TeletextTeletext

SubtitlingSubtitling

Service InformationService Information


Signal Transmission and ReceptionSignal Transmission and ReceptionMultiplexingMultiplexingChannel CodingChannel CodingVarious Modulations due to Different MediaVarious Modulations due to Different Media– COFDM – T COFDM – T – QAM – C QAM – C – QPSK – S QPSK – S – VSB – T VSB – T

TransmittingTransmitting– SatelliteSatellite– CableCable– TerrestrialTerrestrial– IPTVIPTV

ReceivingReceiving– OutdoorOutdoor– IndoorIndoor– PortablePortable– MobileMobile


Conditional AccessConditional Access

What is Conditional AccessWhat is Conditional Access– Control AccessControl Access

Why Conditional AccessWhy Conditional Access– Guarantee RevenueGuarantee Revenue– Parental ControlParental Control– Copyright ProtectionCopyright Protection– Service-OrientedService-Oriented

How Conditional AccessHow Conditional Access– Encryption/DecryptionEncryption/Decryption– Scrambling/DescramblingScrambling/Descrambling– SAS/SMSSAS/SMS


Interactive ServicesInteractive Services

What is InteractivityWhat is Interactivity– Return Channel/PathReturn Channel/Path

Why InteractivityWhy Interactivity– Attractive ServicesAttractive Services– Extending RevenueExtending Revenue

How InteractivityHow Interactivity– Return Channel/PathReturn Channel/Path

Telephone, Cable Modem, IP, Internet, Wireless, Cellular, …Telephone, Cable Modem, IP, Internet, Wireless, Cellular, …

– Develop New ServicesDevelop New ServicesContent is the KingContent is the KingPPVPPVVoDVoDT-Commerce T-Commerce EPG…EPG…


TerrestrialTerrestrial


CableCable


SatelliteSatellite


MHPMHP


DTV StandardsDTV Standards

ATSC – Advanced Television Systems CommitteeATSC – Advanced Television Systems Committee

DVB – Digital Video BroadcastingDVB – Digital Video Broadcasting

ISDB – Integrated Services Digital BroadcastingISDB – Integrated Services Digital Broadcasting

DMB-T/H – Digital Media Broadcasting-Terrestrial/HandheldDMB-T/H – Digital Media Broadcasting-Terrestrial/Handheld


ATSCATSC


Introduction to ATSC – Introduction to ATSC – Advanced Television Systems CommitteeAdvanced Television Systems Committee

Formed in 1982Formed in 1982

Member organizations of the Joint Committee on InterSociety Member organizations of the Joint Committee on InterSociety Coordination (JCIC): EIA, IEEE, NAB, NCTA, SMPTECoordination (JCIC): EIA, IEEE, NAB, NCTA, SMPTE

Members representing the broadcast, broadcast equipment, Members representing the broadcast, broadcast equipment, motion picture, consumer electronics, computer, cable, satellite, motion picture, consumer electronics, computer, cable, satellite, and semiconductor industriesand semiconductor industries

ATSC Digital TV Standards include digital high definition ATSC Digital TV Standards include digital high definition television (television (HDTVHDTV), standard definition television (SDTV), data ), standard definition television (SDTV), data broadcasting, multi-channel surround-sound audio, and satellite broadcasting, multi-channel surround-sound audio, and satellite direct-to-home broadcasting direct-to-home broadcasting


ATSC 8VSBATSC 8VSB


ATSC Standards (selected)ATSC Standards (selected)

ATSC Standard A/52A – Digital Audio Compression (AC-3) ATSC Standard A/52A – Digital Audio Compression (AC-3) Standard, Rev. AStandard, Rev. AATSC Recommended Practice A/54A – Guide to the Use of the ATSC Recommended Practice A/54A – Guide to the Use of the ATSC Digital Television Standard ATSC Digital Television Standard ATSC Standard A/65B – Program and System Information ATSC Standard A/65B – Program and System Information Protocol for Terrestrial Broadcast and Cable, Rev. B Protocol for Terrestrial Broadcast and Cable, Rev. B ATSC Standard A/68 – PSIP Standard for Taiwan ATSC Standard A/68 – PSIP Standard for Taiwan ATSC Standard A/70 – Conditional Access System for Terrestrial ATSC Standard A/70 – Conditional Access System for Terrestrial Broadcast with AmendmentBroadcast with AmendmentATSC Standard A/96 – ATSC Interaction Channel ProtocolsATSC Standard A/96 – ATSC Interaction Channel ProtocolsATSC Standard A/100 – DTV Application Software Environment - ATSC Standard A/100 – DTV Application Software Environment - Level 1 (DASE-1) Level 1 (DASE-1)


DVBDVB


Introduction to DVB – Introduction to DVB – Digital Video BroadcastingDigital Video Broadcasting

An An industry-ledindustry-led consortium of broadcasters, manufacturers, consortium of broadcasters, manufacturers, network operators, software developers, regulatory bodies and network operators, software developers, regulatory bodies and others in over others in over 4040 countries committed to designing countries committed to designing global global standardsstandards for the delivery of for the delivery of digital televisiondigital television and and datadata services services

Open, Interoperable, Flexible, Open, Interoperable, Flexible, Market-ledMarket-led


DVB-T COFDMDVB-T COFDM


DVB Standards (selected)DVB Standards (selected)

TR 101 154 V1.4.1 – Implementation guidelines for the use of TR 101 154 V1.4.1 – Implementation guidelines for the use of MPEG-2 Systems, Video and Audio in satellite, cable and MPEG-2 Systems, Video and Audio in satellite, cable and terrestrial broadcasting applicationsterrestrial broadcasting applications

EN 300 468 V1.4.1 – Specification for Service Information (SI) in EN 300 468 V1.4.1 – Specification for Service Information (SI) in DVB systemsDVB systems

TS 101 812 V1.2.1 – Digital Video Broadcasting (DVB) TS 101 812 V1.2.1 – Digital Video Broadcasting (DVB) Multimedia Home Platform (MHP)Multimedia Home Platform (MHP)

TR 101 290 V1.2.1 – Measurement guidelines for DVB systemsTR 101 290 V1.2.1 – Measurement guidelines for DVB systems

TR 102 033 V1.1.1 – Architectural Framework for the Delivery of TR 102 033 V1.1.1 – Architectural Framework for the Delivery of DVB Services over IP-based NetworksDVB Services over IP-based Networks


ISDBISDB


Introduction ISDB – Introduction ISDB – Integrated Services Digital BroadcastingIntegrated Services Digital Broadcasting

The Digital Broadcasting Experts Group (DiBEG) was founded in The Digital Broadcasting Experts Group (DiBEG) was founded in September 1997 to promote ISDB-T, the Japanese Digital September 1997 to promote ISDB-T, the Japanese Digital Terrestrial Broadcasting System, in the worldTerrestrial Broadcasting System, in the world

DiBEG promotes exchange of technical information and DiBEG promotes exchange of technical information and international cooperation to facilitate common understanding in international cooperation to facilitate common understanding in the world and smooth exchange of programs in digital erathe world and smooth exchange of programs in digital era


ISDB-TISDB-T


ISDB Standards (selected)ISDB Standards (selected)

STD-B31 V1.2 – TRANSMISSION SYSTEM FOR DIGITAL STD-B31 V1.2 – TRANSMISSION SYSTEM FOR DIGITAL TERRESTRIAL TELEVISION BROADCASTING TERRESTRIAL TELEVISION BROADCASTING

STD-B10 V3.5 – SERVICE INFORMATION FOR DIGITAL STD-B10 V3.5 – SERVICE INFORMATION FOR DIGITAL BROADCASTING SYSTEMBROADCASTING SYSTEM

STD-B25 V3.0 – CONDITIONAL ACCESS SYSTEM STD-B25 V3.0 – CONDITIONAL ACCESS SYSTEM SPECIFICATIONS FOR DIGITAL BROADCASTINGSPECIFICATIONS FOR DIGITAL BROADCASTING


DMB-T/HDMB-T/H


DMB-T/HDMB-T/H

China DTV standardChina DTV standard

Developed by Developed by 北京清華大學北京清華大學 and and 上海交通大學上海交通大學– Combination of multi-carrier and single-carrier technologiesCombination of multi-carrier and single-carrier technologies

It still remains unclearIt still remains unclear– All of China's DTVs —fixed and mobile— shall support both the TDS-All of China's DTVs —fixed and mobile— shall support both the TDS-

OFDM and VSB schemesOFDM and VSB schemes


Evolution of DVB SpecificationsEvolution of DVB Specifications


Broadcast

Fixed Telecom

WirelessTelecom

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: www.dvb.orgsource: www.dvb.org


Broadcast

Fixed Telecom

WirelessTelecom

DVB 2.0DVB 2.0

DVB in IPIP 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.



Broadcast

Fixed Telecom

WirelessTelecom

DVB in IPIP in DVB

DVB → GSM/UMTS...


DVB 3.0DVB 3.0

CBMSCBMS

Late in 2004 DVB agreed on a new work programme for the future – DVB 3.0

HDTV, HN, CPCM, CBMS, …


Areas of Strategic Importance for DVB 3.0Areas of Strategic Importance for DVB 3.0

Convergence of broadcast and mobile servicesConvergence of broadcast and mobile services– WiFi, WiMaxWiFi, WiMax– 2 G, 3 G, beyond 3 G2 G, 3 G, beyond 3 G

Convergence of broadcast and IP fixed network servicesConvergence of broadcast and IP fixed network services– DSLDSL– QoS managementQoS management– Local storageLocal storage

Solutions to support Solutions to support service interoperabilityservice interoperability across multiple across multiple networks and platformsnetworks and platforms– Content codingContent coding– Middleware and PCFMiddleware and PCF– In-home distributionIn-home distribution– Content protection and copy managementContent protection and copy management


Why HDTVWhy HDTV


Better viewer experienceBetter viewer experience


How HDTVHow HDTV


How HDTVHow HDTV

Source codingSource coding– Progress in video compression technologyProgress in video compression technology– Progress in audio coding technologyProgress in audio coding technology

DeliveryDelivery– Broadband transmissionBroadband transmission– New transmission technologiesNew transmission technologies

DVB-S2/T2/C2DVB-S2/T2/C2

Display devicesDisplay devices– Flat Panel Display Flat Panel Display – Higher resolutionHigher resolution


Do you have enoughDo you have enough“reasons to change”?“reasons to change”?


EBU EBU EBU TECHNICAL REVIEW – 2009 Q1EBU TECHNICAL REVIEW – 2009 Q1

Currently, there are over Currently, there are over 150150 HDTV channels available in Europe HDTV channels available in Europe – and the number continues to grow, in spite of the recession. – and the number continues to grow, in spite of the recession.

But if we look back to our early dream – which was a “European But if we look back to our early dream – which was a “European surge in demand for HDTV” in 2005, with the football World Cup surge in demand for HDTV” in 2005, with the football World Cup taking place at that time – we would have to admit that the rollout taking place at that time – we would have to admit that the rollout is, well, successful ... but is, well, successful ... but slowerslower than we thought it would be. than we thought it would be.

Could we have Could we have foreseenforeseen this? this?

It may be useful to ask why digital rollouts have been as we It may be useful to ask why digital rollouts have been as we thought they would be, or thought they would be, or slowerslower than we thought, and whether than we thought, and whether we can learn from the past when we consider the next generation we can learn from the past when we consider the next generation of media.of media.


Chance to ChangeChance to Change


Golden Rules?

For each separate element of the value chain, there must be a For each separate element of the value chain, there must be a strongstrong balance in the “why change?” column. The more there is in balance in the “why change?” column. The more there is in the “why not change” column, the the “why not change” column, the higher the riskhigher the risk of a slow rollout of a slow rollout or possibly a failure.or possibly a failure.

One of the most important elements is that if any one of the value One of the most important elements is that if any one of the value chain elements does not have the magic dust – chain elements does not have the magic dust – a major reason to a major reason to changechange – then probably the change will not happen at all. – then probably the change will not happen at all. Everyone must gain something, or the ship will not sail.Everyone must gain something, or the ship will not sail.


HD ServicesHD Services

MPEG2 VideoAC3 Audio

1st Generation HD

720/P/50

DVB-S

DVB-T

DVB-C

H.264/AVC Video or VC1 Video

AC3 Audio or Enhanced AC3 orMPEG4 HE-AAC

2nd Generation HD

720/P/50

DVB-S2

DVB-TDVB-H included

DVB-C

Next Generation A/V Compression or

Enhanced AC3 orMPEG4 HE-AAC

3rd Generation HD

1080/P/50

DVB-S2

DVB-TDVB-H includedDVB-T2 included

DVB-C

Start HD in the 2005 Start HD in the 2006~2009 Start HD in the 2010~

Source: EBU (European Broadcasting Union) Tech 3298-E, 2004 Oct


HDTVHDTV

HDTV – High Definition TelevisionHDTV – High Definition Television– 720p720p 以上之影像格式以上之影像格式

Super Hi-VisionSuper Hi-Vision– 解析度更高解析度更高– NHKNHK 所開發所開發


回顧回顧HDHD 的影像壓縮標準的影像壓縮標準– MPEG-2MPEG-2– MPEG-4MPEG-4– AVC/H.264AVC/H.264– SVCSVC– ......

HDHD 的影像格式的影像格式– 720p720p– 1080i1080i– 1080p1080p– ......


回顧回顧HDTVHDTV 顯示器顯示器

HDTVHDTV 傳輸與接收傳輸與接收

台灣台灣 HDTVHDTV 試播時程試播時程


各國現況各國現況


各國現況各國現況美國美國– 電視機須內建數位電視接收功能電視機須內建數位電視接收功能– 數位電視機上盒折扣卷數位電視機上盒折扣卷德國德國– 地面廣播已全面數位化地面廣播已全面數位化法國法國– 20112011 全面數位化全面數位化– HDTVHDTV 採採 AVC/H.264AVC/H.264

英國英國– 20122012 全面數位化全面數位化– BBCBBC 大力支持大力支持 DVB-T2DVB-T2

日本日本– 20112011 全面數位化全面數位化


台灣台灣


台灣台灣 HDTVHDTV 議題議題影像格式影像格式

頻譜規劃頻譜規劃

內容製作內容製作

商業營運模式商業營運模式

管理法規與推廣政策管理法規與推廣政策

市場競爭市場競爭


服務及應用趨勢服務及應用趨勢


互動電視服務互動電視服務

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 email Polls Interactive stories GUI look and feel Presentation styles Home control and security


Stock Information and Java GamesStock Information and Java Games


Examples of ServicesExamples of Services


服務匯流服務匯流在任何環境之下，使用者可以根據其需求，經由其選擇的任何網路，來使用其想在任何環境之下，使用者可以根據其需求，經由其選擇的任何網路，來使用其想要的任何服務要的任何服務 – 任何環境任何環境：如固定或行動傳輸網路環境；有線或無線傳輸網路環境；廣播：如固定或行動傳輸網路環境；有線或無線傳輸網路環境；廣播

（（ broadcastbroadcast ）或群播（）或群播（ multicastmulticast ）或單點傳播（）或單點傳播（ unicastunicast ）的傳輸網路；或各式傳）的傳輸網路；或各式傳輸接取網路的任意組合（如下傳是用行動電視廣播網路，上傳是用輸接取網路的任意組合（如下傳是用行動電視廣播網路，上傳是用 3G3G 電信網路）電信網路）

– 任何網路任何網路：目前所有可用的傳輸接取網路技術，如：有線之光纖及：目前所有可用的傳輸接取網路技術，如：有線之光纖及 xDSLxDSL 傳輸網路；傳輸網路；無線之無線之 WiFiWiFi 、、 WiMAXWiMAX 網路；行動電信網路網路；行動電信網路 2G/3G/4G2G/3G/4G 網路；數位電視廣播網路網路；數位電視廣播網路DVB-H/T/T2/C/S/S2DVB-H/T/T2/C/S/S2 等等

– 任何服務任何服務：多媒體影音娛樂服務、資訊服務、通訊服務等：多媒體影音娛樂服務、資訊服務、通訊服務等– 使用者需求使用者需求：使用者決定何時、何地、以及其所需的服務，自由的選擇並使用：使用者決定何時、何地、以及其所需的服務，自由的選擇並使用

服務的傳遞將由服務的傳遞將由 IP ProtocolIP Protocol 來傳輸來傳輸– 將將應用服務應用服務、、 IPIP 層層、、實體網路接取層實體網路接取層區分開來區分開來– 可具有可具有彈性彈性以因應未來以因應未來多樣化多樣化及及個人化個人化的服務產生的服務產生– 亦可因應未來亦可因應未來新的網路傳輸技術新的網路傳輸技術的發展的發展– 對法規政策制定者而言，僅需依對法規政策制定者而言，僅需依服務形式服務形式及及內容內容來制定管理法規或政策，不需因為來制定管理法規或政策，不需因為新新

技術技術的發展，導致需隨時修改法規及政策的發展，導致需隨時修改法規及政策


DVB-IPDC Protocol StackDVB-IPDC Protocol Stack


服務創新服務創新「服務創新」就是在既有的服務中去創新，去思索此服務是否能加「服務創新」就是在既有的服務中去創新，去思索此服務是否能加入新的元素來豐富使用者的消費體驗入新的元素來豐富使用者的消費體驗

如在益智問答的現場節目中，直接利用雙向傳輸管道及視音訊攝錄如在益智問答的現場節目中，直接利用雙向傳輸管道及視音訊攝錄裝置接收觀眾的回應來創造另一種現場實況的參與模式（取代現行裝置接收觀眾的回應來創造另一種現場實況的參與模式（取代現行利用電話利用電話 Call inCall in 或或 Call outCall out 的參與模式）的參與模式）


創新服務創新服務「創新服務」就是去開發一個前所未有的服務型態或服務內容來吸「創新服務」就是去開發一個前所未有的服務型態或服務內容來吸引使用者引使用者

如搭配棒球賽的實況轉播，利用具力量回饋與加速度偵測的遙控器，如搭配棒球賽的實況轉播，利用具力量回饋與加速度偵測的遙控器，用以揮擊利用高速數位攝影機拍下之王建民所投的快速下沉球，使用以揮擊利用高速數位攝影機拍下之王建民所投的快速下沉球，使用者可經由行動電話同步接收球的運行資訊並計算虛擬球棒與球撞用者可經由行動電話同步接收球的運行資訊並計算虛擬球棒與球撞擊之時間點，而進一步計算出球隨後的飛行路徑與接觸力大小，使擊之時間點，而進一步計算出球隨後的飛行路徑與接觸力大小，使用者就可感受到如保齡球般沉重的快速下沉球，而不是僅有美國大用者就可感受到如保齡球般沉重的快速下沉球，而不是僅有美國大聯盟的選手可以感受到聯盟的選手可以感受到

c.p. kuan 僅供 ncc 講習課程使用 1 高畫質電視的服務及應用趨勢 官振鵬...

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c.p. kuan 僅供 ncc 講習課程使用 1 高畫質電視的服務及應用趨勢官振鵬...