~/talk

Geek Out - How television led to streaming video on your mobile phone

Talkat NDC Oslo 2024 · 2024-06-10..06-14· [computing-history]
slides:none on file

History and mechanics of TV from 405-line system (broadcast for 48 years until 1985) through CRTs with three electron guns and shadow masks to three-tube cameras, CCDs and Kodak’s Bayer filter, then LCD polarization and emissive OLED pixels. Explains MPEG Group of Pictures: I‑frames, motion vectors and GOPs used to get DVDs and satellite streams to fit; PAL’s 25 fps makes European DVDs ~4% shorter; satellite quad LNB plus analog tuning and MPEG decode explain why channel changes take ~0.5–1+ seconds.

AI-written summary · about

  1. 0:00Introduction
  2. 7:13Mechanical vs electronic TV
  3. 10:47Color TV invention
  4. 16:30CRT image display
  5. 24:02CRT rise and fall
  6. 24:22Plasma vs LCD failure
  7. 26:30LCD polarization basics
  8. 29:04Modern flat screens & OLED
  9. 31:12Video transmission fields
  10. 34:24NTSC vs PAL standards
  11. 38:16Film to video conversion
  12. 39:38MPEG compression
  13. 45:14Satellite TV tuning
  14. 53:16Summary
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