Patent ID: 6693628
Filing Date: 2004-02-17
Classification: G09G

Abstract:
A method for monitoring, in a system including a flat screen, a graphics card and a computer, a setting of a phase between a pixel clock of the graphics card and a sampling clock of the flat screen having an analog interface, the method which comprises:setting a flag upon the phase between the pixel clock and the sampling clock being set from a user-side; examining the setting of the flag upon performing at least one operation selected from the group consisting of switching on the flat screen, exchanging the graphics card, and exchanging the computer; providing a display indication or initiating a setting of the phase if, during the examining step, it is ascertained that the flag is not set; checking if at least a first line above a picture region is â€œblackâ€  after the setting of the phase and upon an identification of a mode change; and setting the flag only when the checking step yields a positive result.