Refreshing of dynamic memory

摘要

A refreshable dynamic memory is used to drive a video display wherein each row of stored memory is accessed to provide one line of video. The memory row address counter is incremented a number of times during the horizontal retrace period to sequentially refresh a given number of memory rows before another row is displayed. The cycle is repeated until an entire field is displayed. A sufficient number of rows are refreshed during each line whereby the rows are refreshed continually within the storage time of the memory cells.