DTV CAPTION SUMMIT 14 MARCH 01 SESSION ON

DTV CAPTION SUMMIT 14 MARCH 01 SESSION ON PRODUCT SUPPORT norpak corporation © norpak corporation 2001 14 MAR 01

norpak n Developed first caption solutions in 1982 n Over 3, 400 encoders in 42 countries n Analog, serial digital, HD encoders n NTSC/PAL, 608/708, HDSDI bridges n PC card ISA/PCI, rackmount receivers © norpak corporation 2001 14 MAR 01

CAPTIONING EQUIPMENT + ENCODERS • • • + RECEIVERS (ALSO MONITORING SOFTWARE) • • + TES 3 - analog – NTSC/PAL/SECAM TES 5 - serial digital - CCIR 601/SMPTE 259 TES 7 - HD serial digital – SMPTE 334/292 NES 3 - Nielsen analog also called NUE NES 5 – Nielsen serial digital also called DNUE NES 6 – Nielsen SDI + audio also called NAVE TTX 81 X – analog RF/basebcand ISA bus card TTX 83 X – analog RF/baseband PCI bus card + multiple rack mount TTX 85 X – analog RF/baseband rack mount TTX 87 X – SDI/analog baseband PCI card +multiple rack mount BRIDGES • • VDB 7 – analog 608 to compression system 708 ADB 7 – SMPTE 292/259/292 baseband for storage of captions TES 3/TES 5 –between signals and between standards TES 7 – SMPTE 334 M data from SMPTE 292 M to compression 708 © norpak corporation 2001 14 MAR 01

‘STICKY’ DATA n Most solutions are focussed on adding data at the point of emission. This is fine for data which is unrelated to the video/audio n ‘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 n 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? © norpak corporation 2001 14 MAR 01

FORWARD / BACKWARD COMPATIBILITY n n n 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. © norpak corporation 2001 14 MAR 01

CAPTION DELIVERY ARCHITECTURE CAPTIONS ADDED TO ORIGINAL PROGRAM LOCAL STATION MAY ADD LOCAL CAPTION DATA NETWORK MAY ADD CAPTIONING DATA CAPTION CREATION NETWORK HEADEND CONTRIBUTION LOCAL STATION Broadcast DISTRIBUTION Videotape © norpak corporation 2001 14 MAR 01

TYPICAL CAPTIONING OPERATION Analog Video TES 3 Encoder VTR Time Code 608 Caption Server Analog Video + EIA-608 Captions SDI (259 M) Video TES 5 Encoder VTR Time Code RS 232, 10 -base. T, modem ANALOG VIDEO (E. G. NTSC) © norpak corporation 2001 608 Caption Server RS 232, 10 -base. T, modem SERIAL DIGITAL (SDI) VIDEO (SMPTE 259 M) 14 MAR 01

TES 3 / TES 5 ENCODER © norpak corporation 2001 14 MAR 01

LANGUAGES - PART 1 At the Caption Server to Caption Encoder interface: n n n 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. . . © norpak corporation 2001 14 MAR 01

LANGUAGES - PART 2 The Caption Distribution Packet (CDP) n n 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. RS 232 server-toencoder, or embedded in VANC. . . © norpak corporation 2001 14 MAR 01

LANGUAGES - PART 3 Vertical Ancillary (VANC) data n n n SMPTE 291 M 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 259 M) and HD-SDI (SMPTE 292 M) VANC data is “sticky”; it accompanies, and remains synchronized with, the baseband video and audio signals as they are routed, recorded and switched. SMPTE 334 M specifies how to code the VANC data, assigns addresses to specific services, and specifies that captioning data is carried as CDPs. © norpak corporation 2001 14 MAR 01

TES 7 THE MISSING (608 -TO-708) LINK HD-SDI (292 M) Video TES 7 Encoder VTR HD-SDI (292 M) Video + SMPTE 334 M Captions CDPs in 334 M VANC packets Time Code 608 Caption Server RS 232, 10 -base. T, modem TES 7 accepts caption commands, and inserts 334 M VANC data into 292 M “Control-A” commands © norpak corporation 2001 14 MAR 01

LANGUAGES - PART 4 At the MPEG Encoder input: n n n Many ATSC program encoders have an RS 232 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 333 M 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 RS 232 or 334 M VANC. . . © norpak corporation 2001 14 MAR 01

TES 7 THE MISSING (292 M-MPEG) LINK 292 M + 334 M 292 M TES 7 Encoder TES 7 extracts 334 M VANC data and produces RS 232 caption data for the MPEG encoder © norpak corporation 2001 MPEG Encoder MPEG TS RS 232 Captions GA or SMPTE 333 M 14 MAR 01

DATA DELIVERY ARCHITECTURE CAPTIONS ADDED TO ORIGINAL PROGRAM LOCAL STATION MAY ADD LOCAL CAPTION DATA NETWORK MAY ADD CAPTIONING DATA CAPTION CREATION NETWORK HEADEND CONTRIBUTION LOCAL STATION Broadcast DISTRIBUTION Videotape © norpak corporation 2001 14 MAR 01

DATA DELIVERY (CAPTION CREATION) TES 7 Encoder VTR 608 Caption Server Videotape CAPTION CREATION © norpak corporation 2001 NETWORK HEADEND CONTRIBUTION Videotape LOCAL STATION DISTRIBUTION Broadcast 14 MAR 01

DATA DELIVERY (NETWORK) Contribution MPEG DECODE & DEMUX 292 M TES 7 MPEG Encoder & MUX Routing 292 M VTR 292 M Videotape Compressor ADB 7 292 M CAPTION CREATION © norpak corporation 2001 259 M Server NETWORK HEADEND CONTRIBUTION Videotape LOCAL STATION DISTRIBUTION Broadcast 14 MAR 01 Distribution

DATA DELIVERY (STATION) Distribution MPEG DECODE & DEMUX 292 M TES 7 Routing PSIP Gen MPEG Encoder & MUX Broadcast 292 M VTR 292 M Videotape Compressor ADB 7 292 M CAPTION CREATION © norpak corporation 2001 259 M Server NETWORK HEADEND CONTRIBUTION Videotape LOCAL STATION DISTRIBUTION Broadcast 14 MAR 01

TES 7 +SMPTE 334 data on SMPTE 292 ‘baseband, HD video +Captioning EIA 608/708 and ‘native’ EIA 708 B +Transparent mode +Bridge mode to feed compression systems © norpak corporation 2001 14 MAR 01

TES 7 STANDARDS TES 7 272 M 299 M Audio (HANC) ANCILLARY DATA 334 M VANC mapping HDTV audio (HANC) 291 M ANC data VIDEO FORMATS (selected) 125 M SD video BIT-SERIAL INTERFACES 305 M “packet data” i. e. MPEG TES 7 267 M 274 M 296 M SD 16: 9 1920 x 1080 I 1280 x 720 P 292 M 270 & 360 Mbs © norpak corporation 2001 259 M 1. 485 Gbs TES 7 14 MAR 01

ANCILLARY DATA FORMAT LUMINANCE VANC H A N C CHROMINANCE : 1920 OR 1280 BYTES ACTIVE PICTURE DATA ANC PACKET 7 -262 BYTES ADF (3) © norpak corporation 2001 : 1920 OR 1280 BYTES DID SDID 7 -262 BYTES DC 7 -262 BYTES DATA PAYLOAD 0 -255 BYTES CS 14 MAR 01

VANC THROUGHPUT n EACH LINE OF LUMA OR CHROMA CARRIES: o 1920 X 60 = 115. 2 K BYTES/SEC (274 M) o 1280 X 60 = 76. 8 K BYTES/SEC (296 M) n EACH LINE CARRIES: o 115. 2 K X 2 = 230. 4 K BYTES/SEC (274 M) o 76. 8 K X 2 = 153. 6 K BYTES/SEC (296 M) n VANC SPACE CONTAINS: o 274 M : LINES 1 -20, MINUS 2 SWITCHING = 18 LINES o 296 M : LINES 1 -25, MINUS 2 SWITCHING = 23 LINES © norpak corporation 2001 14 MAR 01

BRIDGES + DEDICATED • VDB 7 – analog 608 to compression system 708 • ADB 7 – SMPTE 292/259/292 HD baseband + DUAL PURPOSE • TES 3 – with software modules can bridge between signals and also between standards • TES 7 – bridges SMPTE 334 data on SMPTE 292 baseband signal to emission compression system © norpak corporation 2001 14 MAR 01

ADB 7 HD BRIDGE § § § Bridges SMPTE 334 data from/to SMPTE 292/259/292 baseband video signals Used with two part HD storage devices Bridges around the compression engine © norpak corporation 2001 14 MAR 01

VDB 7 DTV BRIDGE + Upconverts 6 O 8 to 708 captions + One video service per module + Up to four modules (services) per chassis. Module types may be mixed CHASSIS + 16 chassis can be daisy chained + Software loadable - other modules such as Nielsen reader available © norpak corporation 2001 MODULE 14 MAR 01

NORPAK CUSTOMERS n n n 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, 5 ieme, 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, Direc. TV, Gemstar, Hitachi, IBM, Intel, Liberate, Matsushita, LG, Microsoft, Mitsubishi, Motorola, Pioneer, Respond. TV, Samsung, Scientific Atlanta, Sanyo, Sony, TAK, Thomson, Toshiba, Wave. Phore, Web. TV, Wink, World. Gate, Zenith, and more. . © norpak corporation 2001 14 MAR 01