| 摘要 |
IMPROVED SYMBOLOGY DISPLAY METHOD FIELD OF THE INVENTION In a digital display system (10) including a stroke scanning mechanism, a method which comprises the steps of displaying symbology (100) and increasing (116) or decreasing (108) the number of symbols displayed, including the null symbol depending upon comparisons (104) of actual stroke time to a predetermined stroke time limit. The symbology is initially displayed by stroke scanning. The actual stroke time for displaying the symbology is measured. The actual stroke time is then compared (102) with the predetermined stroke time limit to ascertain whether or not the time limit has been exceeded. If the stroke time limit is not exceeded (104) and a null symbol is not present in the symbology displayed (114), a null symbol is added (116). If the stroke time limit is not exceeded (104) and a null symbol is present in the displayed symbology (114), the number of symbols is increased (116). If the stroke timing limit is 0xceeded (104) and a null symbol is present (106) in the symbology displayed, the null symbol is removed (110). If the stroke time limit is exceeded (104) and the null symbol is not present (106), a null symbol is added (112) and the number of other visible symbols is decreased (108).
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