System and method for an enhanced analog video interface
AssigneeHewlett-Packard Development Company, L.P.
InventorRobert L. Myers
Life of this patent
Estimating the term…
Abstract
A method is provided for accurately sampling pixels in a fixed-format display, which is connected to a host computer through an analog video display adapter. The method comprises the step of confirming that the fixed-format display is able to receive a pixel clock signal from the analog video display adapter. Another step is sending the pixel clock signal across an analog video sync line so that synchronization data and the pixel clock signal will be contained on the analog video sync line. An additional step is receiving the pixel clock signal in the fixed-format display. A further step is applying the pixel clock signal in the fixed-format display to sample pixels.
Claims8
A method for accurately sampling pixels in a fixed-format display, which is connected to a host computer through an analog video display adapter, comprising:
- confirming that the fixed-format display is able to receive a pixel clock signal from the analog video display adapter, wherein the pixel clock signal has a frequency less than a fixed-format display pixel rate;
- sending the pixel clock signal across an analog video sync line that includes a horizontal sync signal so that the sync signal and the pixel clock signal are contained on the analog video sync line;
- receiving the pixel clock signal in the fixed-format display;
- applying the pixel clock signal in the fixed-format display to sample pixels;
- and
- abstaining from sending the pixel clock signal during periods that correspond to the horizontal sync pulse.
Dependencies are inferred from the claim text.