Method for performing a bus autoset function and measurement device

Patent metadata

Field	Value
Publication number	US-10991341-B2
Application number	US-201815940731-A
Country	US
Kind code	B2
Filing date	Mar 29, 2018
Priority date	Mar 30, 2017
Publication date	Apr 27, 2021
Grant date	Apr 27, 2021

Abstract

A method for performing a Bus autoset function is described. A maximum amplitude of an analog signal is detected. The analog signal is converted into a logical signal. A frame in the logical signal is detected. A scale of an output unit is set such that the whole frame is output. Further, a measurement device is described.

First claim

The invention claimed is:

1. A method for performing a Bus autoset function, the method carried out by an oscilloscope, the method comprising:
detecting a maximum amplitude of an analog signal via a processing unit of the oscilloscope, the analog signal comprising several portions with a respective level;
converting the analog signal into a logical signal via the processing unit;
detecting a frame in the logical signal, the frame decoded from the analog input signal and comprising the information of interest; and
setting a scale of an output unit via the processing unit, the scale being set automatically without any manual input such that the entire content of the frame is output, thereby providing a context-sensitive autoscale function.

2. The method according to claim 1 , wherein the entire content of the frame is displayed on a display of the oscilloscope.

3. The method according to claim 1 , wherein a trigger level is set.

4. The method according to claim 1 , wherein an actuation of the autoset function is detected prior to said detecting a maximum amplitude of an analog signal.

5. The method according to claim 1 , wherein an autoset function is initiated initially by the user.

6. The method according to claim 1 , wherein an oscilloscope mode set is detected at the beginning.

7. The method according to claim 1 , wherein a Bus decode mode is initiated initially by the user.

8. The method according to claim 1 , wherein it is verified at the beginning if the autoset function is enabled and the oscilloscope mode is set to a Bus decode mode.

9. The method according to claim 1 , wherein the analog signal is decoded.

10. The method according to claim 1 , wherein the output unit includes a display, and wherein the method further comprises
displaying the entire contents of the frame on the display.

11. The method according to claim 3 , wherein the trigger level is set prior to the logic conversion.

12. The method according to claim 5 , wherein the autoset function is initiated by actuating a corresponding button of the oscilloscope.

13. The method according to claim 7 , wherein the Bus decode mode is initiated by actuating a corresponding button of the oscilloscope.

14. An oscilloscope comprising:
a processing unit configured to:
detect a maximum amplitude of an analog signal, the analog signal comprising several portions with a respective level;
convert the analog signal into a logical signal;
detect a frame in the logical signal, the frame decoded from the analog input signal and comprising the information of interest; and
set a scale of an output unit automatically without any manual input such that the entire contents of the frame is output, thereby providing a context-sensitive autoscale function.

15. The device oscilloscope according to claim 14 , further comprising a display that is configured to display an output of the processing unit.

16. The measurement device according to claim 14 , wherein the output unit includes a display, and wherein the entire contents of the frame are displayed on the display.

Assignees

• Rohde & Schwarz

Inventors

• Diegmann Philip

Classifications

• G01R13/0209 Primary

  in numerical form · CPC title

• G06T3/40

  Scaling of whole images or parts thereof, e.g. expanding or contracting · CPC title

• G09G5/373 Primary

  for modifying the size of the graphic pattern · CPC title

• G01R13/345 Primary

  for displaying sampled signals by using digital processors by intermediate A.D. and D.A. convertors (control circuits for CRT indicators) · CPC title

• G01R13/22

  Circuits therefor · CPC title