| 摘要 |
<p>In a display system an array of data values such as, for example, an array of speech waveform samples, is represented in a display field (eg. 22) by logically dividing the display field into a plurality of display areas and determining (eg. in 16), for each value of the data array, the area of the display field within which that value should be displayed, comparing that value to a range (defined, for example, in storage 18) for the area in question and updating the range to include that value if it lies outside the range previously defined for that area and then plotting (eg. by 20), within each area of the display field, a line joining display screen positions defined by the range in the range storage for that area. The invention recognizes that the overplotting in the display field which was performed in prior art display systems was inefficient and time consuming due to the time taken to write data into the display field and provides for the preprocessing of data values in the data array to reduce the number of plots made in the display field.</p> |
