SERVERTYPE DIGITAL BROADCASTING

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SERVER-TYPE DIGITAL BROADCASTING

• RECENT DEVELOPMENT in JAPAN

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BroadcastingInfrastructure
BS Network
Broadcasting through HAPS
Coordination with communication NW
Development of Info-Tech. CEand Home Network
Mobile Broadcasting
Development ofCommon Technologies

Interface Tech.
(IEEE1394?Bluetooth??)
Home Intelligence Tech.
New Broadcasting Services
High Tech Terminals
(Home-gatewayHome-server)
Development ofCommunicationTechnologies
(CPU?Storage Devices? Display )
Hyper presence
Others
Software
(HAPS???)
Mobile/Portable
Transmission Tech.
(FTTH?IMT2000?WDM???)
Interactive

Internet Tech.
Storage Reception
(IPv6?Streaming Tech.???)
User interface
Direction of Future Broadcasting System
Characteristics of Broadcasting
Program Production
SimultaneousWide service area
Broad capacityPrompt report
Hyper studio system
Hyper media conversion
Public/Social nature
Social Needs
Diverted contents production
Change of living

etc.
(Variation of lifestyle??)
Economical aspects

Development ofBroadcasting Tech.
(Contents supply ability???)
Existing Services
Broadcasting NW
New Broadcasting Services
Program Production Tech.

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Significance of Terrestrial TV Digitization-?

• 1 Gateway to IT Society
• ? Terrestrial TV is common for all
• ?Form a friendly and convenient Home IT Base
• ? Seamless Services with Internet become
  available
• 2 Merit for Viewer
• ? High Quality Video and Audio Service
• (Hi-Vision, Ghost-free Picture)
• ? Solid friendly services for aged and disabled
• (e.g.variable speed for hearing)
• ? Realize a stable mobile reception
• (Clear picture in a mobile)
• ? Convenient Data Broadcasting
• ( e.g.News Flash/Weather Report at your
  disposal)

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Significance of Terrestrial TV Digitization ??

• 3 Creation of New Frequency Resource
• Efficient use of frequency
• ? Answer to needs for mobile communications
  and others
• 4 Economic Effect
• ? Worth 322bn dollars in 10 years for receivers
  and broadcasting facilities (Japanese case)
• (Trial calculation by a major manufacturer)
• ? 1,710bn dollars, inclusion of the ripple
  effect
• on related industries
• (Informal Group Report on Terrestrial Digital
  Broadcastings1998)

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Contents
Contents conversion tech.Contents production
support tech. Contents
search tech. etc.
Network
MPEG Video / Audio
BML
RTCP
SMTP FTP
RTSP
H.261 H.263 Video
DSM-CC
Common protocol etc.
MPEG-2 TS/PS
HTTP
RTP
TCP
UDP
IP
Main NW (Optical Fiber/WDM)
Wireless (W-CDMA)
Digital Broadcasting (Terrestrial/BS/CATV)
Home NW (IEEE1394)
Access NW (XDSL/CATV/FWA)
Terminals
PC
Digital TV
Cellular Phone/PDA
DSM-CCDigital Storage Media Command and
Control?TSTransport Stream?PSProgram
Stream?RTPReal-time Transport Protocol?RTCPRTP
Control Protocol?RTSPReal Time Streaming Protocol
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Time-shift viewing Select storage
service Selectivity, match to viewers
taste Automatic renewal of stored
contents Connected service with Internet
etc.
Server-type Receiver
Signal
BroadcastingStation
Tagged Sig.
Digital TV Tunner Storage Device
PC
A.V. Equipments
Game Machine
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Server-type Broadcasting
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Server-typeBroadcasting
Conventional Broadcasting
Real-time viewing
Viewing without time constraint
Big Capacity
Transmitting
Transmitting
Receiving
Viewing
Receiving
Viewing
Transmitting
Transmitting
time
time
Prog. A
Prog. B
Prog. C
Programs are kept in the storage device
Receiving
Prog. A
Receiving
Prog. B
Prog. C
Storage
Replay
Viewing
Late Viewing
Programs con not be kept
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Present Viewing
Viewing with Server-type Receiver
Add Time Stamp for Replay to Contents
Time Stampfor Replay
Contents
Contents Transmission by Stream
Wide Bandwidth Short duration time Narrow
Bandwidth Long duration time
ContentsTransmissionby File
Storage
Replay by Time Stamp after completion of storage
Real-time Viewing
Server-type Receiver
?Efficient Usage of Bandwidth ?New Services
through Storage Function
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(1)Contents Distribution Method for New Viewing
Style Method enables various viewings such
as scene search and digest viewing Method
under a condition that viewing time differs
receiving time (2)Rights Management and
Protection System that keeps contents free from
illegal copy RMP Data that instructs
contents utilize conditions Method that
enforces RMP conditions (3)Access Control
Method that enables wide contents utilization
Method that enables accurate control of
contents utilization Method which prevents
contents from illegal access Various
access control method which corresponds various
business model
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BroadcastingContentsTagged Data for RMP
Decoding is allowed only those receivers that
keep the RMP conditions.
When necessary, Copy Guard Signal is added.
Radio sig.?Base band sig.
Analog Output(Display, PVR etc.)
Decoder
Re-Coding
Digital Storage unit
Digital Output
Receiver
To ONLY equipment accepts the RMP conditions
Store and replayby following PMPconditions
According to the RMP data
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Required Rights Protection
RPM Data
Sort of Data
Copy FreeCopy OnceCopy Never
Digital Copy GenerationControl
Digital Recording Control Data
?
Converted Analog ContentCopy Control
Copy FreeCopy Never
AnalogOutput
APS Control Data
Note In case of copy once, movement is
allowed.
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Required Rights Protection
RPM Data
Sort of Data
AllowedProhibited
Retention Mode
Retention Control in the case Copy Never
90 min.1 day1 week etc.No
restriction
Retention State
Content Protectionin the case Copy Free/Once
Encryption Mode
Always