from Hacker News

LumaCode

by nickt on 3/2/24, 5:55 AM with 2 comments

• by pavlov on 3/3/24, 9:05 AM

  It’s a digital video output for retro computers that can be applied as a hardware modification. These devices originally only had analog outputs [1], so getting a digital signal enables a much cleaner conversion to modern video standards.

  The LumaCode signal can be visually inspected on a standard analog TV, which is nice: “…it is possible to just plug it into any TV that has a composite video or mono input jack. The image will then show some grayscale pattern roughly resembling the original picture.”

  [1] Not so clear-cut, as some computers of the era did have digital outputs for vendor-specific monitors.