Measurement device and method for measuring at least one signal

Patent metadata

Field	Value
Publication number	US-2016299181-A1
Application number	US-201514730463-A
Country	US
Kind code	A1
Filing date	Jun 4, 2015
Priority date	Apr 7, 2015
Publication date	Oct 13, 2016
Grant date	—

Abstract

A measurement device for measuring at least one signal generates a first trigger impulse upon detection of a first trigger condition in at least one signal to be measured. It stores for the at least one signal multiple segments each containing the detected first trigger condition upon generation of the first trigger impulse in an acquisition memory. A second trigger impulse is generated upon detection of a second trigger condition in the multiple segments of the at least one signal stored in the acquisition memory. For the at least one signal the segments containing the detected second trigger condition are displayed upon generation of the second trigger impulse on a display unit.

First claim

What is claimed is:

1 . A measurement device comprising
a first trigger unit which is configurable to generate a first trigger impulse upon detection of a first trigger condition in at least one signal to be measured, an acquisition memory which is configurable to store for the at least one signal multiple segments each containing the detected first trigger condition upon generation of the first trigger impulse, a second trigger unit which is configurable to generate a second trigger impulse upon detection of a second trigger condition in the multiple segments of the at least one signal stored in the acquisition memory and a display unit which is configurable to display for the at least one signal the segments containing the detected second trigger condition upon generation of the second trigger impulse.

2 . The measurement device according to claim 1 , wherein the display unit is further configurable to display additionally for the at least one signal the segments without containing any detected second trigger condition.

3 . The measurement device according to claim 2 , wherein the display unit is further configurable to display the segments containing the detected second trigger in another visual type as the segments without containing any detected second trigger.

4 . The measurement device according to claim 3 , wherein the visual type is a color or a type of a line in which the corresponding segment is displayed.

5 . The measurement device according to claim 1 , wherein the display unit is configurable to display the at least one segment of the at least one signal containing the detected second trigger in another display area as the segments of the at least one signal without containing the detected second trigger condition.

6 . The measurement device according to claim 1 , wherein the second trigger unit is configurable to use a trigger mask defined by a user of the measurement device.

7 . The measurement device according to claim 5 , wherein the display unit is configured to display only the at least one segment of the at least one signal containing the detected second trigger condition which is positioned only inside the trigger mask or only outside the trigger mask.

8 . The measurement device according to claim 1 , wherein the second trigger unit is further configurable to detect a second trigger condition in a time-domain signal.

9 . The measurement device according to claim 1 , wherein the second trigger unit is further configurable to detect a second trigger condition in a frequency-domain signal.

10 . The measurement device according to claim 1 , wherein the first trigger unit and the acquisition memory are realized in real-time mode.

11 . A method for measuring at least one signal comprising following method steps:
generating a first trigger impulse upon detection of a first trigger condition in the at least one signal, storing for the at least one signal multiple segments each containing the detected first trigger condition upon generation of the first trigger impulse, generating a second trigger impulse upon detection of a second trigger condition in the stored segments of the at least one signal and displaying for the at least one signal segments each containing the detected second trigger condition upon generation of the second trigger impulse.

12 . The method according to claim 11 , wherein segments containing the detected first trigger condition are displayed in another visual type as the segments without containing the detected second trigger condition.

13 . The method according to claim 11 , wherein at the second trigger condition a trigger mask is used.

14 . The method according to claim 13 , wherein for the at least one signal only segments which are positioned inside the trigger mask are displayed or only segments which are positioned outside the trigger mask are displayed.

15 . The method according to claim 11 , wherein the generation of the first trigger and the storage of segments of the at least one signal each containing the detected first trigger condition are performed in real-time mode.

16 . The method according to claim 11 ,
wherein the segments of the at least one measured signal containing a detected second trigger event are labeled in an acquisition memory, whereas the segments of the at least one measured signal without any detected second trigger event remain unlabeled in the acquisition memory.

17 . The method according to claim 11 , wherein each segment of the at least one measured signal with a detected second trigger event is stored as labeled segment in an auxiliary memory succeeding a unit for signal post-processing directly after second triggering.

18 . The method according to claim 11 , wherein each segment of the at least one measured signal with a detected second trigger event is loaded as labeled segment in a display memory directly after second triggering.

Assignees

• Rohde & Schwarz
• Rohde & Schwarz

Inventors

• Reich Friedrich
• Mayet Ferdinand
• Herbordt Wolfgang

Classifications

• G01R13/0263 Primary

  for non-recurrent functions, e.g. transients · CPC title

• G01R23/16

  Spectrum analysis; Fourier analysis · CPC title

• G01R23/02 Primary

  Arrangements for measuring frequency, e.g. pulse repetition rate; Arrangements for measuring period of current or voltage · CPC title

• G01R13/02

  for displaying measured electric variables in digital form · CPC title