View Single Post
  #12   Report Post  
Posted to sci.electronics.repair
Leif Neland Leif Neland is offline
external usenet poster
 
Posts: 199
Default Auto TV Picture Adjustment - VIR In the Digital Age?

Efter mange tanker skrev :
Bruce Esquibel:


The original premise of VIR is that the TV would be aligned
with a luma/chroma/phase/peak signal sent 60x sec from
the station on a specific scan line.


This would not be neccessary on european PAL (Phase Alternate
Line),where alternate lines are in opposite phase, cancelling any phase
shift in the chroma signal, only in the US NTSC (Never Twice Same
Colour) system.


The key phrase here is: "aligned with the station". Of course,
there could be the option, in this glorious digital age, of user
override of certain adjustments, such as the Backlight on
LCD/OLED TVs, to compensate for specific in-room viewing
conditions, day vs night, etc.


But at the very least, the color, hue, and sharpness would
be locked in automatically.


This is digital, it is unchanged from mixing console to tv, the only
variable is how the pixels on the screen responds to the signal, so VIR
would not help here. The only thing which needs adjusting is this
response and allowance for lighting conditions in the wieving room.

Leif

--
https://www.paradiss.dk
Ting til konen eller kæresten.
Eller begge.