Patent ID: 6710779
Filing Date: 2004-03-23
Classification: G09G

Abstract:
An image conversion apparatus for converting a screen signal to display a converted screen signal on a monitor, wherein the screen signal comprises a plurality of first image signals, and the image conversion apparatus comprises:a format memory in which at least one data group is stored, the data group having a period signal; a signal conversion matrix for conversion of the first image signals to a plurality of corresponding second image signals; a latch circuit electrically connected to the signal conversion matrix for latching the second image signals transmitted from the signal conversion matrix; and a control circuit electrically connected to the format memory and the latch circuit for controlling the latch circuit so that the latch circuit latches chosen second image signals according to a lock signal in the data group transferred from the format memory; wherein the screen signal comprises a plurality of horizontal synchronizing signals and a plurality of pixel clock ticks, the horizontal synchronizing signals processing a data transmitted from the format memory, and the pixel clock ticks are between the horizontal synchronizing signals; wherein the control circuit doubles the periods of some of the pixel clock ticks according to the period signal of the data group to adjust a number of the pixel clock ticks between the horizontal synchronizing signals, and the latch circuit correspondingly reduces samplings of the second image signals.