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.

Abstract: The method of processing waveform data from one or more channels using a test and measurement instrument, such as an oscilloscope, is described in which waveform data is collected from a DUT; defining a context is defined by instructing the instrument to obtain the focus of each waveform datum having a first user-defined attribute; defining a selection criteria by instructing the instrument to obtain the focus of each waveform datum having both a first user-defined attribute and a second user-defined attribute; and defining an action by instructing the instrument to perform an operation responsive to finding at least one waveform datum having both the first user-defined attribute and the second user-defined attribute.

Abstract: The method of processing waveform data from one or more channels using a test and measurement instrument, such as an oscilloscope, is described in which waveform data is collected from a DUT; defining a context is defined by instructing the instrument to obtain the focus of each waveform datum having a first user-defined attribute; defining a selection criteria by instructing the instrument to obtain the focus of each waveform datum having both a first user-defined attribute and a second user-defined attribute; and defining an action by instructing the instrument to perform an operation responsive to finding at least one waveform datum having both the first user-defined attribute and the second user-defined attribute.

Abstract: A digital storage oscilloscope having a display screen to display a waveform, and a mask defining compliant and non-compliant regions. A method of operating the oscilloscope includes receiving a signal, processing the signal, and displaying the signal on the screen. Portions of signals occupying the non-compliant region are displayed with a flashing illumination. The flashing illumination may be manually invoked to reveal small and inconspicuous violations.

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.

Abstract: A digital storage oscilloscope having a display screen to display a waveform, and a mask defining compliant and non-compliant regions. A method of operating the oscilloscope includes receiving a signal, processing the signal, and displaying the signal on the screen. Portions of signals occupying the non-compliant region are displayed with a flashing illumination. The flashing illumination may be manually invoked to reveal small and inconspicuous violations.

Abstract: A Digital Oscilloscope has an information storage facility, a processor connected to the storage facility and having a data input, and a graphical display connected to the processor. The storage facility contains a multitude of functional tools for processing a signal from the input and for displaying a result on the display. The display has a control portion operable to display a selected limited subset of the tools. A limited subset of tools are selected from among the multitude of tools, and are displayed on a control portion of the display. The selection may be made manually by the user, or may be made automatically based on the user's recorded use of tools. Multiple subsets may be stored to enable different users to share the oscilloscope.