Long data record analysis
First Claim
1. A method of data analysis in a test and measurement instrument comprises:
- inputting a long data record into a memory of the test and measurement instrument which contains repetitive data over a period of time, each instance of the repetitive data forming a data frame, wherein the method further comprising the steps of;
specifying, by the measurement instrument a reference frame having a tolerance value for the long data record;
comparing, by the measurement instrument each data frame with the reference frame to identify outlier frames that have significant deviations from the reference frame as determined by the tolerance value; and
displaying a selected one of the outlier frames in a graticule view on the test and measurement instrument display.
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Accused Products
Abstract
A data analysis technique for a long data record in a memory uses a reference, either user-provided or calculated from the data in the long data record, as a representative event. Each event in the long data record is compared with the reference to determine whether there are significant deviations from the reference. Those events having significant deviations are identified as events of particular interest for a user. The reference may be either a waveform shape or a mean time interval between events. A tolerance value may be added to the waveform reference and varied for dynamic limit testing. Events that are outside the waveform reference as modified by the tolerance value are identified as outliers and may be reduced to iconic images for display simultaneously with the long data record and a selected one of the outliers.
12 Citations
17 Claims
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1. A method of data analysis in a test and measurement instrument comprises:
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inputting a long data record into a memory of the test and measurement instrument which contains repetitive data over a period of time, each instance of the repetitive data forming a data frame, wherein the method further comprising the steps of; specifying, by the measurement instrument a reference frame having a tolerance value for the long data record; comparing, by the measurement instrument each data frame with the reference frame to identify outlier frames that have significant deviations from the reference frame as determined by the tolerance value; and displaying a selected one of the outlier frames in a graticule view on the test and measurement instrument display. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification