Display method for signal analyzer
First Claim
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1. A method for a signal analyzer of displaying a signal under test comprising the steps of:
- displaying data for the signal under test as a graph on a screen having time and frequency axes;
displaying a marker having variable time and frequency scales on the graph;
designating as desired data the data within the marker; and
displaying a sub-graph relating to the desired data.
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Abstract
A rectangle marker on a display of a signal analyzer simultaneously designates time and frequency intervals of data from a signal under test for analysis. The data of the signal under test is displayed as a graph having time and frequency axes. Sub-graphs show data designated by the rectangle marker as processed in the time domain, frequency domain and modulation domain. The resulting display provides an overview of the signal under test and simultaneously provides displays of measurements and analyses for a designated portion of the data.
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Citations
9 Claims
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1. A method for a signal analyzer of displaying a signal under test comprising the steps of:
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displaying data for the signal under test as a graph on a screen having time and frequency axes;
displaying a marker having variable time and frequency scales on the graph;
designating as desired data the data within the marker; and
displaying a sub-graph relating to the desired data. - View Dependent Claims (2, 3, 4, 5)
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6. A signal analyzer comprising:
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means for producing frequency domain data from time domain data for a signal under test; and
means for displaying the frequency domain data as a graph as a function of time;
means for designating via a marker on the graph desired data by variable time and frequency scales; and
means for displaying a sub-graph relating to the desired data. - View Dependent Claims (7, 8, 9)
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Specification