DTV CAPTION SUMMIT 14 MARCH 01 SESSION ON PRODUCT SUPPORT norpak corporation

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DTV CAPTION SUMMIT14 MARCH 01SESSION ON
PRODUCT SUPPORTnorpak corporation

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norpak

• Developed first caption solutions in 1982
• Over 3,400 encoders in 42 countries
• Analog, serial digital, HD encoders
• NTSC/PAL, 608/708, HDSDI bridges
• PC card ISA/PCI, rackmount receivers

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CAPTIONING EQUIPMENT

• ENCODERS
• TES3 - analog NTSC/PAL/SECAM
• TES5 - serial digital - CCIR601/SMPTE259
• TES7 - HD serial digital SMPTE334/292
• NES3 - Nielsen analog also called NUE
• NES5 Nielsen serial digital also called DNUE
• NES6 Nielsen SDI audio also called NAVE
• RECEIVERS (ALSO MONITORING SOFTWARE)
• TTX81X analog RF/basebcand ISA bus card
• TTX83X analog RF/baseband PCI bus card
  multiple rack mount
• TTX85X analog RF/baseband rack mount
• TTX87X SDI/analog baseband PCI card multiple
  rack mount
• BRIDGES
• VDB7 analog 608 to compression system 708
• ADB7 SMPTE 292/259/292 baseband for storage of
  captions
• TES3/TES5 between signals and between standards

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STICKY DATA

• Most solutions are focussed on adding data at
  the point of emission. This is fine for data
  which is unrelated to the video/audio
• Sticky data is content that needs to stick
  with the V/A as it travels through multiple
  plants on its way from the creator to broadcast
• Needs to be transparently stored and retrieved
  without the complications of locating it on a
  server somewhere. Delays of seconds, hours, days
  are commonplace - and what about years down the
  road?

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FORWARD / BACKWARD COMPATIBILITY

• Whether the signal is analog, serial digital or
  HDTV the sticky data interface should be
  identical
• Applications such as captioningshould interface
  to the data encoder in the same way regardless of
  the TV standard used
• Makes the move from analog to digital or HDTV
  simple and straightforward .

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CAPTION DELIVERY ARCHITECTURE
LOCAL STATION MAY ADD LOCAL CAPTION DATA
CAPTIONS ADDED TO ORIGINAL PROGRAM
NETWORK MAY ADD CAPTIONING DATA
CAPTION CREATION
NETWORK HEADEND
LOCAL STATION
Broadcast
CONTRIBUTION
DISTRIBUTION
Videotape
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TYPICAL CAPTIONING OPERATION
Analog Video EIA-608 Captions
SDI (259M) Video EIA-608 Captions
SDI (259M) Video
Analog Video
Time Code
Time Code
608 Caption Server
608 Caption Server
RS232, 10-baseT, modem
RS232, 10-baseT, modem
SERIAL DIGITAL (SDI) VIDEO (SMPTE 259M)
ANALOG VIDEO (E.G. NTSC)
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TES3 / TES5 ENCODER
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LANGUAGES - PART 1
At the Caption Server to Caption Encoder
interface

• The interface for VBI closed captioning is the de
  facto standard Control-A command protocol
• Contains enough information to allow an NTSC
  caption encoder to insert EIA-608 captions and
  other services in the VBI
• Also contains enough information to allow a DTV
  caption encoder to insert 608 compatibility and
  derived 708 captions into a DTV stream
• Does not provide for full-blown EIA-708 DTV
  captions
• Does not provide for Caption Descriptors

A new standard was needed...
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LANGUAGES - PART 2
The Caption Distribution Packet (CDP)

• EIA-708-B defines the CDP
• Contains (optionally present) fields for
• EIA-608 caption data (608 compatibility bytes)
• DTV caption data
• Caption Descriptor
• Time Code
• Intended to be used throughout the professional
  portion of the DTV distribution infrastructure
• Can be carried through various types of link
  e.g. RS232 server-to-encoder, or embedded in
  VANC...

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LANGUAGES - PART 3
Vertical Ancillary (VANC) data

• SMPTE 291M specifies a method for embedding data
  in a serial digital video signal
• VANC is analogous to VBI in analog video
• VANC is usable in SDI (SMPTE 259M) and HD-SDI
  (SMPTE 292M)
• VANC data is sticky it accompanies, and
  remains synchronized with, the baseband video and
  audio signals as they are routed, recorded and
  switched.
• SMPTE 334M specifies how to code the VANC data,
  assigns addresses to specific services, and
  specifies that captioning data is carried as
  CDPs.

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TES7 THE MISSING (608-TO-708) LINK
CDPs in 334M VANC packets
HD-SDI (292M) Video
HD-SDI (292M) Video SMPTE 334M Captions
Time Code
TES7 accepts caption commands, and inserts 334M
VANC data into 292M
608 Caption Server
RS232, 10-baseT, modem
Control-A commands
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LANGUAGES - PART 4
At the MPEG Encoder input

• Many ATSC program encoders have an RS232 port for
  caption data input.
• First protocol was the Grand Alliance (GA),
  which uses a push model data is fed to the
  encoder which embeds it as soon as possible.
• SMPTE 333M is a pull protocol the encoder
  requests a caption when it needs one.
• Encoder manufacturers have implemented one or
  both of these.
• Apparently, none has yet implemented EIA-708-B
  CDPs, either in RS232 or 334M VANC...

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TES7THE MISSING (292M-MPEG) LINK
292M
292M 334M
MPEG TS
RS232 Captions
TES7 extracts 334M VANC data and produces RS232
caption data for the MPEG encoder
GA or SMPTE 333M
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DATA DELIVERY ARCHITECTURE
LOCAL STATION MAY ADD LOCAL CAPTION DATA
CAPTIONS ADDED TO ORIGINAL PROGRAM
NETWORK MAY ADD CAPTIONING DATA
CAPTION CREATION
NETWORK HEADEND
LOCAL STATION
Broadcast
CONTRIBUTION
DISTRIBUTION
Videotape
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DATA DELIVERY (CAPTION CREATION)
CAPTION CREATION
CAPTION CREATION
NETWORK HEADEND
LOCAL STATION
Broadcast
CONTRIBUTION
DISTRIBUTION
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DATA DELIVERY (NETWORK)
292M
Contri- bution
292M
292M
Distri- bution
MPEG DECODE DEMUX
292M
292M
292M
CAPTION CREATION
NETWORK HEADEND
LOCAL STATION
Broadcast
CONTRIBUTION
DISTRIBUTION
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DATA DELIVERY (STATION)
292M
Distri- bution
292M
292M
MPEG DECODE DEMUX
Broadcast
292M
292M
292M
CAPTION CREATION
NETWORK HEADEND
LOCAL STATION
Broadcast
CONTRIBUTION
DISTRIBUTION
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TES7

• SMPTE334 data on SMPTE292 baseband, HD video
• Captioning EIA608/708 and native EIA708B
• Transparent mode
• Bridge mode to feed compression systems

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TES7 STANDARDS
TES7
272M Audio (HANC)
299M HDTV audio (HANC)
334M VANC mapping
ANCILLARY DATA
291M ANC data
TES7
TES7
TES7
125M SD video
267M SD 169
274M 1920x1080I
296M 1280x720P
305M packet data i.e. MPEG
VIDEO FORMATS (selected)
BIT-SERIAL INTERFACES
259M 270 360 Mbs
TES7
292M 1.485 Gbs
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ANCILLARY DATA FORMAT
LUMINANCE 1920 OR 1280 BYTES
ACTIVE PICTURE DATA
VANC
CHROMINANCE 1920 OR 1280 BYTES
HANC
ANC PACKET 7-262 BYTES
ANC PACKET 7-262 BYTES
ANC PACKET 7-262 BYTES
ADF (3)
DID
SDID
DC
DATA PAYLOAD 0-255 BYTES
CS
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VANC THROUGHPUT

• EACH LINE OF LUMA OR CHROMA CARRIES
• 1920 X 60 115.2K BYTES/SEC (274M)
• 1280 X 60 76.8K BYTES/SEC (296M)
• EACH LINE CARRIES
• 115.2K X 2 230.4K BYTES/SEC (274M)
• 76.8K X 2 153.6K BYTES/SEC (296M)
• VANC SPACE CONTAINS
• 274M LINES 1-20, MINUS 2 SWITCHING 18 LINES
• 296M LINES 1-25, MINUS 2 SWITCHING 23 LINES

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BRIDGES

• DEDICATED
• VDB7 analog 608 to compression system 708
• ADB7 SMPTE 292/259/292 HD baseband
• DUAL PURPOSE
• TES3 with software modules can bridge between
  signals and also between standards
• TES7 bridges SMPTE334 data on SMPTE292 baseband
  signal to emission compression system

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ADB7 HD BRIDGE

• Bridges SMPTE334 data from/to SMPTE 292/259/292
  baseband video signals
• Used with two part HD storage devices
• Bridges around the compression engine

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VDB7 DTV BRIDGE

• Upconverts 6O8 to 708 captions
• One video service per module
• Up to four modules (services) per chassis.
  Module types may be mixed
• 16 chassis can be daisy chained
• Software loadable - other modules such as
  Nielsen reader available

CHASSIS
MODULE
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NORPAK CUSTOMERS

• Algeria, Argentina, Australia, Belgium, Brazil,
  Canada, China, Denmark, France, Greece, Germany,
  Hong Kong, Hungary, Indonesia, Ireland, Israel,
  Italy, Japan, Korea, Malaysia, Mexico, Morocco,
  Netherlands, New Zealand, Norway, Philippines,
  Portugal, Russia, Singapore, Slovakia, South
  Africa, Sweden, Switzerland, Taiwan, Thailand,
  Turkey, UK, US, Vietnam, Venezuela, ...
• ABC, ABN, BBC, BBS, CBC, CBS, CHINATV, 5ieme,
  CNN, CTV, FOX, GLOBO, HBO, ITV, KBS, LCE, MBC,
  NBC, RCTI, SEVEN, SKY, SWTX, TDA, TDF, TCS,
  TELEVISA, TSN, TVAzteca, TVO, UNIVISION, UPN,
  ZDF and more .
• Acer, DirecTV, Gemstar, Hitachi, IBM, Intel,
  Liberate, Matsushita, LG, Microsoft, Mitsubishi,
  Motorola, Pioneer, RespondTV, Samsung, Scientific
  Atlanta, Sanyo, Sony, TAK, Thomson, Toshiba,
  WavePhore, WebTV, Wink, WorldGate, Zenith, and
  more ....