Proportional spacing display apparatus.

摘要

A proportional spacing display apparatus for displaying characters on a display screen with spacings corresponding to types of character. One character display cycle comprises a half cycle for reading character data from a video memory and a half cycle for rewriting the character data in the video memory. The character data rearding half cycle has a fixed time period necessary for data reading, while the character data rewriting half cycle has a time period variable with character widths.