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

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

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  1. DTV CAPTION SUMMIT14 MARCH 01SESSION ON PRODUCT SUPPORTnorpak corporation

  2. 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

  3. 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 • TES7 – SMPTE334M data from SMPTE292M to compression 708

  4. ‘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 thatneeds 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?

  5. 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 .

  6. 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

  7. VTR VTR TES5 Encoder TES3 Encoder 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)

  8. TES3 / TES5 ENCODER

  9. 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...

  10. 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...

  11. 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.

  12. VTR TES7 Encoder 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

  13. 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...

  14. TES7 Encoder MPEG Encoder 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

  15. 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

  16. VTR VTR TES7 Encoder 608 Caption Server Videotape Videotape DATA DELIVERY (CAPTION CREATION) CAPTION CREATION CAPTION CREATION NETWORK HEADEND LOCAL STATION Broadcast CONTRIBUTION DISTRIBUTION

  17. Routing Compressor VTR 259M Server MPEG Encoder & MUX TES7 TES7 ADB7 Videotape Videotape 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

  18. Routing Compressor PSIP Gen VTR 259M Server MPEG Encoder & MUX TES7 TES7 ADB7 Videotape Videotape DATA DELIVERY (STATION) 292M Distri- bution 292M 292M MPEG DECODE & DEMUX Broadcast 292M 292M 292M CAPTION CREATION NETWORK HEADEND LOCAL STATION Broadcast CONTRIBUTION DISTRIBUTION

  19. TES7 • SMPTE334 data on SMPTE292 ‘baseband, HD video • Captioning EIA608/708 and ‘native’ EIA708B • Transparent mode • Bridge mode to feed compression systems

  20. TES7 STANDARDS TES7 272M Audio (HANC) 334M VANC mapping 299M HDTV audio (HANC) ANCILLARY DATA 291M ANC data TES7 TES7 TES7 VIDEO FORMATS (selected) 125M SD video 305M “packet data” i.e. MPEG 267M SD 16:9 274M 1920x1080I 296M 1280x720P BIT-SERIAL INTERFACES 259M 270 & 360 Mbs TES7 292M 1.485 Gbs

  21. 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

  22. 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

  23. 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

  24. 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

  25. 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

  26. 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 ....

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