Editing Hanover bars (section)

== Suppression of Hanover bars ==
To suppress Hanover bars, PAL color decoders use a delay line that repeats the [[Chrominance|chroma]] information from each previous line and blends it with the current line.<ref>
{{cite book
  | title     = National Association of Broadcasters Engineering Handbook
  | chapter   = Worldwide Standards for Analog Television
  | publisher = Academic Press
  | date      = 2007
}}
</ref> This causes phase errors to cancel out, at the cost of vertical color resolution, and in early designs, also a loss of [[color saturation]] proportional to the phase error.<ref name="auto"/>