Process for identifying discrete data representative of an input sample
stream
    2.
    发明授权
    Process for identifying discrete data representative of an input sample stream 失效
    用于识别表示输入样本流的离散数据的处理

    公开(公告)号:US5214580A

    公开(公告)日:1993-05-25

    申请号:US544715

    申请日:1990-06-27

    申请人: Richard Aparo

    发明人: Richard Aparo

    摘要: Processing waveform data for compressed display. A parameter to be displayed is measured, digitized, and displayed on a device that does not permit display of all of the data samples; thus, the digitized data is converted to a compressed form. For a compression factor of N input samples for each displayed sample, a displayed sample is taken from each successive group of N input samples. The choice of input sample is as follows: the sample having the maximum value of the group is chosen if all of the samples of the group are greater than or equal to the previous displayed sample; if all of the samples of the group are less than or equal to the previous displayed sample, then the sample having the minimum value is chosen; if the maximum and minimum values of a group straddle the value of the previous displayed sample, then a maximum sample and a minimum sample are chosen from the combination of that group and the next group. The technique can be applied in situations where N is not an integer. In such situations, the technique includes the calculation of an additional "pivot sample" for at least some of the groups.

    摘要翻译: 处理用于压缩显示的波形数据。 要显示的参数被测量,数字化并显示在不允许显示所有数据样本的设备上; 因此,数字化数据被转换成压缩形式。 对于每个显示样本的N个输入样本的压缩因子,从每个连续的N个输入样本组中获取显示的样本。 输入样本的选择如下:如果组的所有样本大于或等于先前显示的样本,则选择具有组的最大值的样本; 如果组的所有样本小于或等于先前显示的样本,则选择具有最小值的样本; 如果组的最大值和最小值跨越先前显示的样本的值,则从该组和下一组的组合中选择最大样本和最小样本。 该技术可以应用于N不是整数的情况。 在这种情况下,该技术包括至少一些组的另外的“枢轴样本”的计算。