VISUAL DISPLAY METHOD FOR TRANSMISSION ERROR OF PICTURE COMMUNICATION

摘要

PURPOSE:To confirm quickly and assuredly a code error by displaying a mark showing the generation of the code error. CONSTITUTION:When an error is detected by a decoder 5, a display is discontinued and a mark pattern generating circuit 9 produces a mark to show the generation of the error. This mark is written to a refresh memory 7 and displayed. The memory 7 is set opposite to a display screen in terms of dots.