System for displaying character and graphic information on a color video display with unique multiple memory arrangement
System and method for painting images by synthetic color signal generation and control
Color display apparatus
Large scale display panel apparatus
Method and system for displaying colors utilizing tristimulus values
Color and brightness tracking in a cathode ray tube display system
Color video display system having programmable border color
Digital shade control for color CRT background and cursors Patent #: 4467322
ApplicationNo. 06/483354 filed on 04/08/1983
US Classes:345/594, Using GUI345/168Including keyboard
ExaminersPrimary: Curtis, Marshall M.
Attorney, Agent or Firm
International ClassesG06F 3/023 (20060101)
G06F 3/02 (20060101)
G09G 5/02 (20060101)
AbstractAn apparatus and method are disclosed which permit selection of colors for display, and easy modification of displayed colors. The apparatus includes a microprocessor, a ROM with a stored program, a RAM with midifiable color data a CRT display for displaying color images, and a keyboard with a cursor-positioning key for identifying a pixel of a displayed color image, and a color menu and H (hue), L (lightness), S (saturation) color modification keys. In response to actuation of one or more of the color modification keys, the microprocessor, under control of the stored program, modifies the stored color data, and uses the modified color data to control the color guns (red, green, blue) of the CRT to modify the color of the identified pixel.