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Testing 608 and 708 Closed Caption Streams

Testing 608 and 708 Closed Caption Streams. By Stephane Billat Application Engineer Sencore Inc . The CC Technical Challenge. Insert Closed Caption into ATSC Streams and recover them for use on ATSC compatible displays. The CC Technical Challenge.

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Testing 608 and 708 Closed Caption Streams

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  1. Testing 608 and 708 Closed Caption Streams By Stephane Billat Application Engineer Sencore Inc Sencore Inc, 2001

  2. The CC Technical Challenge Insert Closed Caption into ATSC Streams and recover them for use on ATSC compatible displays Sencore Inc, 2001

  3. The CC Technical Challenge Insert Closed Caption into ATSC Streams and recover them for use on ATSC compatible displays Problem: ATSC CC is new, powerful, complex, has almost unlimited combinations. Sencore Inc, 2001

  4. The CC Technical Challenge Insert Closed Caption into ATSC Streams and recover them for use on ATSC compatible displays Problem: ATSC CC is new, powerful, complex, has almost unlimited combinations. Solution: Need for independent testing Sencore Inc, 2001

  5. CC in the ATSC Stream Sencore Inc, 2001

  6. Analog 608 CC Field-1 / Channel-1 services • CC1=Primary caption service • CC2=Special non-sync caption service Sencore Inc, 2001

  7. Analog 608 CC Field-1 / Channel-1 services • CC1 = Primary caption service • CC2= Special non-sync caption service • T1 = First text service 15-row text box over all screen • T2 = Second text service (WEB TV) • T2 in field-1 is also used for the EIA-746 transmission of Web Url: www.sencore.com. Sencore Inc, 2001

  8. Analog 608 CC Sencore Inc, 2001

  9. Analog 608 CC Field-2 / Channel-2 services • CC3 = Alternative language-1 • CC4 = Alternative language-2 Sencore Inc, 2001

  10. Analog 608 CC Field-2 / Channel-2 services • CC3 = Alternative language-1 • CC4 = Alternative language-2 • T3 = Third text service unused at present • T4 = Fourth text service unused at present • XDS Sencore Inc, 2001

  11. Analog 608 CC features • Roll Up • Pop on • Background color • Few special effect • Limited in bandwidth Sencore Inc, 2001

  12. Analog 608 CC Sencore Inc, 2001

  13. Digital 708 CC Features • Multiple windows (7) • Many effects Drop shadow Translucent Different types of borders. Pen types Fonts Languages Sencore Inc, 2001

  14. Digital 708 CC Sencore Inc, 2001

  15. Digital 708 CC Sencore Inc, 2001

  16. 708 Window Definition View Sencore Inc, 2001

  17. 708 Window Style View Sencore Inc, 2001

  18. 708 Pen Style View Sencore Inc, 2001

  19. CC logs creation Sencore Inc, 2001

  20. Other Features • Select display mode in presentation or decode order. • Useful in establishing delay in the insertion & its relation to the picture. Sencore Inc, 2001

  21. Conclusion • CC708 includes 608 and new CC Sencore Inc, 2001

  22. Conclusion • CC708 includes 608 and new CC • Challenge: Insertion into ATSC Stream Sencore Inc, 2001

  23. Conclusion • CC708 includes 608 and new CC • Challenge: Insertion into ATSC Stream • Need for CC independent testing Sencore Inc, 2001

  24. For More Information Side of the room demo of Analysis CC stream Or Contact Stephane Billat 1-800-SENCORE x279 Stephaneb@sencore.com Sencore Inc, 2001

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