Composite video signal limiter
Color reproduction system
Selective color modification
Apparatus for correcting errors in color signal transitions
Area isolation apparatus for video signal control system Patent #: 4782384
ApplicationNo. 404856 filed on 09/08/1989
US Classes:348/645Chrominance signal amplitude control (e.g., saturation)
ExaminersPrimary: Shepperd, John W.
Attorney, Agent or Firm
Foreign Patent References
International ClassH04N 009/64
AbstractA processor includes an input for receiving video color component signals, and a circuit for deriving a luminance signal and a color magnitude signal from the video color component signals. A further circuit is provided for modifying at least one of the luminance and color magnitude signals whenever a composite video signal derived from the luminance signal in the color magnitude signal has a magnitude which exceeds a predetermined value. An output is provided for producing color component signals derived from the luminance and color magnitude signals from the modifying circuit.