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US 11,442,089 B2Granted
Apparatus and method for determining a trigger time
AssigneeRohde & Schwarz GmbH & Co. KG
InventorsNico Toender, Johann Huber, Markus Freidhof
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Abstract
Improved determination of a trigger time. For this purpose, an input signal is provided to multiple low pass filters having different bandwidths. A trigger event is detected in each of the low pass filtered signals and a corresponding trigger time is determined. The trigger time which is determined based on valid trigger detection and provided by the low pass filter with the highest bandwidth is used for further analysis.
Claims16
An apparatus for determining a trigger time, the apparatus comprising:
- an input port for receiving an input signal;
- a number of at least two detection paths,
- each detection path comprising a low pass filter and a related trigger detector,
- wherein the low pass filter of each detection path has a different bandwidth, each low pass filter is electrically connected to the input port, and configured to apply a low pass filtering of the input signal and provide the filtered signal to the related trigger detector, and
- each related trigger detector is configured to identify a predetermined trigger event and to determine a trigger time of the identified trigger event, wherein said trigger time specifying a point in time when the identified predetermined trigger event has been identified;
- and
- a selector for receiving the determined trigger times from the trigger detectors, selecting a trigger time of a trigger path with a low pass filter having the highest bandwidth among the received trigger times, and outputting the selected trigger time.
4 more elements
A method for determining a trigger time, the method comprising:
- receiving an input signal by an input port;
- low pass filtering the received input signal by a number of two or more low pass filters,
- wherein each low path filter has a different bandwidth;
- detecting a predetermined trigger event in each of the low pass filtered signals by a trigger detector;
- determine a trigger time for each of the identified trigger events by the trigger detector,
- wherein said trigger time specifying a point in time when the detected
- predetermined trigger event has been detected;
- receiving the determined trigger times from the trigger detectors;
- selecting a trigger time of a trigger path with a low pass filter having the highest bandwidth among the received trigger times;
- outputting the selected trigger time by a selector.
7 more elements
Dependencies are inferred from the claim text.