Patent ID: 11933819
Assignee: ROHDE & SCHWARZ GMBH & CO. KG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 9:
10. A method of applying a zone trigger, comprising:
receiving an input signal via a signal processing device;
applying a first trigger on the input signal via a first trigger unit;
generating a trigger signal at least based upon a first trigger event in the input signal;
acquiring the input signal at least based upon the trigger signal so as to provide an acquired signal that comprises signal tuples each having a first axis value and a second axis value, the first axis value being time or frequency, the second axis value being amplitude, the acquired signal being assigned to acquisition data stored in the acquisition memory;
receiving, by an input of a second trigger unit directly connected to an output of the acquisition memory, the acquired signal from the acquisition memory;
processing, by the second trigger unit, the acquired signal according to the zone trigger by applying a zone trigger on the acquired signal, a user drawing a zone on a display unit of the signal processing device for setting the zone trigger, the zone drawn being defined by a first axis range and a second axis range such that the zone drawn corresponds to a rectangular, wherein the zone trigger applied comprises the first axis range and the second axis range, the first axis range being associated with time or frequency, the second axis range being associated with amplitude, wherein the second trigger unit verifies whether or not the respective signal tuples lie within the first and second axis ranges set while applying the second trigger;
generating, by the second trigger unit, a pre-processed signal at least based upon a second trigger event in the acquired signal; and
outputting, by an output of the second trigger unit directly connected to an input of a post-processing unit, the pre-processed signal,
receiving and post-processing, by the post-processing unit that relates to a measurement unit or an analysis unit, the pre-processed signal that is output by the second trigger unit such that a measurement or an analysis is done on the pre-processed signal by the post-processing unit,
wherein no output from said second trigger unit is provided to the acquisition memory, said second trigger unit being configured to not affect the acquisition data stored in the acquisition memory, and wherein the acquired signal is filtered according to the second trigger event in the acquired signal such that only those acquired signals are post-processed that fulfill the trigger condition of the zone trigger, and
wherein the zone trigger is used for error analysis and/or evaluation of the input signal quality at a subsequent processing stage.