Patent ID: 6788331
Filing Date: 2004-09-07
Classification: H04N

Abstract:
An apparatus for displaying a video image on a standard video monitor, comprising:a digital memory for storing said video image as digital video data between a start address and an end address in sequential order; a digital-to-analog converter for converting said digital video data stored in said digital memory to an analog composite video signal for display on said video monitor; a first digital counter having a plurality of logic elements and arranged to control the transfer of said digital video data from said digital memory to said digital-to-analog converter for display of said digital video memory on said video monitor; a second digital counter having a plurality of logic elements and arranged to control the transfer of new digital video data received from a data channel to said digital memory; and a digital multiplexer for selecting either said first digital counter or said second digital counter to control the addresses of said digital memory, such that said second digital counter is temporarily selected to enable the transfer of new data received from said data channel only when said new data is available.