| 摘要 |
In a display or recording device such as cathode ray tube or ink jet recording apparatus, the characters or indicia to be displayed or recorded are resolved into a plurality of strokes representative of X and Y components of the X-Y coordinate system to electrically store them in a memory. Then, the memory is interrogated to read out the information stored therein, and in accordance with the read-out information, control signals are generated to control the horizontal and vertical deflection electrodes to synthesize one stroke with another stroke for display or record of the characters or indicia. The strokes are classified into linear segments and arc segments. The arc segments which represent the curved portions of the characters are quantized into a plurality of steps and are formed by one of eight quadrant strokes by employing X and Y up-down counters. After the counters are set to an initial value representing the starting point of the arc segment, the X and Y counters are incremented in a plurality of steps each having values of 0,1, or 2 in either the up or down direction.
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