Method and device for triggering a recording of a measured signal

• US 8,209,142 B2
• Filed: 11/13/2007
• Issued: 06/26/2012
• Est. Priority Date: 11/28/2006
• Status: Active Grant

• Current Assignee: Rohde & Schwarz GmbH & Company KG
• Original Assignee: Rohde & Schwarz GmbH & Company KG
• Inventors: Schmidt, Kurt
• Primary Examiner(s): WACHSMAN, HAL D
• Application Number:
  US12/447,780
• Publication Number:
  US 20100076718A1
• Time in Patent Office: 1,687 Days
• Field of Search: 702/127, 702/76, 702/68, 702/75, 702/66, 702/71
• US Class Current: 702/127
• CPC Class Codes: G01R 13/0254 for triggering, synchronisation
• CPC Class Codes: G01R 23/16 Spectrum analysis; Fourier analysis

Abstract

A device for triggering a recording of a measured signal dependent upon at least one triggering event identifiable in a occurrence distribution of parameter pairs from two mutually-dependent parameters of the measured signal includes a discriminator for the identification of triggering events in each case with one frequency (NofTreffer) determined for the respective parameter pair and, in a first embodiment, disposed outside, and in a second embodiment, disposed inside, an upper and lower threshold value (UpperNofTreffer, LowerNofTreffer) associated with the respective parameter pair and for marking each occurring triggering event with the assistance of an activated first trigger marker (TrigMerk1) associated with the respective parameter pair. A memory is used for buffering at least the upper and lower threshold value (UpperNofTreffer, LowerNofTreffer) for every parameter pair.

Claims

1. A device for triggering a recording of a measured signal dependent upon at least one triggering event identifiable in an occurrence distribution of parameter pairs of two mutually-dependent parameters of the measured signal, said device comprising:

a discriminator configured to identify a triggering event for each parameter pair, a determined occurrence of which is disposed outside an upper and lower threshold value associated with the parameter pair, and configured to mark each occurring triggering event with the assistance of an activated, first trigger marker associated with the parameter pair; and

a memory configured to buffer at least the upper and lower threshold value for every parameter pair.

2. The device for triggering a recording of a measured signal according to claim 1, further comprising a first logic-comparison unit configured to identify at least one activated first trigger marker in at least one partial range of mutually-adjacent parameter pairs and to activate a second trigger marker associated with the partial range with at least one identified activated first trigger marker connected downstream of the discriminator.

3. The device for triggering a recording of a measured signal according to claim 2, further comprising a second logic-comparison unit configured to compare several first or second trigger markers with an associated activated second reference marker triggering the recording of the measured signal in the event of at least N first or second trigger markers being identical to the N associated activated second reference markers and connected downstream of the discriminator or of the first logic-comparison unit,

whereby N is a number of parameter pairs with a difference between the measured signal and a reference measured signal being necessary to start the triggering of the recording of the measured signal.

4. The device for triggering a recording of a measured signal according to claim 1, further comprising a first logic-comparison unit configured to compare several first trigger markers with associated activated first reference markers in at least one partial range of mutually-adjacent parameter pairs for identity and to activation of a second trigger marker associated with the partial range with at least N first trigger markers being identical to the N associated activated first reference markers connected downstream of the discriminator,

whereby N is a number of parameter pairs with a difference between the measured signal and a reference measured signal being necessary to start the triggering of the recording of the measured signal.

5. The device for triggering a recording of a measured signal according to claim 4, further comprising a second logic-comparison unit configured to compare several first or second trigger markers with associated activated second reference markers and triggering the recording of the measured signal in the event of at least N first or second trigger markers being identical to the N associated activated second reference markers connected downstream of the discriminator or of the first logic-comparison unit.

6. A device for triggering a recording of a measured signal dependent upon at least one triggering event identifiable in an occurrence distribution of parameter pairs of two mutually-dependent parameter pairs of the measured signal, said device comprising:

a discriminator configured to identify a triggering event for each parameter pair, a determined occurrence of which is disposed inside an upper and lower threshold value associated with the parameter pair and configured to mark each occurring triggering event with the assistance of an activated, first trigger marker associated with the parameter pair; and

a memory configured to buffer at least the upper and lower threshold value for every parameter pair.

7. The device for triggering a recording of a measured signal according to claim 6, further comprising a first logic-comparison unit configured to identify at least one activated first trigger marker in at least one partial range of mutually-adjacent parameter pairs and to activate a second trigger marker associated with the partial range with at least one identified activated first trigger markers connected downstream of the discriminator.

8. The device for triggering a recording of a measured signal according to claim 7, further comprising a second logic-comparison unit configured to compare several first or second trigger markers with the associated activated second reference markers and triggering the recording of the measured signal in the event of at least N first or second trigger markers being identical to the N associated activated second reference markers connected downstream of the discriminator or of the first logic-comparison unit,

whereby N is a number of parameter pairs with a difference between the measured signal and a reference measured signal being necessary to start the triggering of the recording of the measured signal.

9. The device for triggering a recording of a measured signal according to claim 6, further comprising a first logic-comparison unit configured to compare several first trigger markers with associated activated first reference markers in at least one partial range of mutually-adjacent parameter pairs and for the activation of a second trigger marker associated with the partial range with at least N first trigger markers being identical to the N associated activated first reference markers connected downstream of the discriminator,

whereby N is a number of parameter pairs with a difference between the measured signal and a reference measured signal being necessary to start the triggering of the recording of the measured signal.

10. The device for triggering a recording of a measured signal according to claim 9, further comprising a second logic-comparison unit configured to compare several first or second trigger markers with one associated activated second reference markers and triggering the recording of the measured signal in the event of at least N first or second trigger markers being identical to the N associated activated second reference markers is connected downstream of the discriminator or of the first logic-comparison unit.

11. A method for triggering a recording of a measured signal dependent upon at least one triggering event identifiable in an occurrence distribution of parameter pairs of two mutually-dependent parameters of the measured signal, said method comprising:

identifying a triggering event for each parameter pair, a determined occurrence of which is disposed outside an upper and lower threshold value associated with the parameter pair, and

marking each occurring triggering event with the assistance of an activated first trigger marker associated with the parameter pair.

12. The method for triggering a recording of a measured signal according to claim 11, further comprising:

identifying at least one activated first trigger marker in at least one partial range of mutually-adjacent parameter pairs; and

activating a second trigger marker associated with the partial range with at least one identified activated first trigger marker.

13. The method for triggering a recording of a measured signal according to claim 12, further comprising:

comparing several first or second trigger markers with an associated activated second reference marker; and

triggering the recording of the measured signal in the event of at least N first or second trigger markers being identical to the N associated activated second reference markers,

whereby N is a number of parameter pairs with a difference between the measured signal and a reference measured signal being necessary to start the triggering of the recording of the measured signal.

14. The method for triggering a recording of a measured signal according to claim 11, further comprising:

comparing several first trigger markers with associated activated first reference markers in at least one partial range of mutually-adjacent parameter pairs for identity; and

activating a second trigger marker associated with the partial range with at least N first trigger markers being identical to the N associated activated first reference markers,

whereby N is a number of parameter pairs with a difference between the measured signal and a reference measured signal being necessary to start the triggering of the recording of the measured signal.

15. The method for triggering a recording of a measured signal according to claim 14, further comprising:

comparing several first or second trigger markers with associated activated second reference markers; and

triggering the recording of the measured signal in the event of at least N first or second trigger markers being identical to the N associated activated second reference markers.

16. A method for triggering a recording of a measured signal dependent upon at least one triggering event identifiable in an occurrence distribution of parameter pairs of two mutually-dependent parameters of the measured signal, said method comprising:

identifying a triggering event for each parameter pair, a determined occurrence of which is disposed inside an upper and lower threshold value associated with the parameter pair; and

marking each occurring triggering event with the assistance of an activated first trigger marker associated with the parameter pair.

17. The method for triggering a recording of a measured signal according to claim 16, further comprising:

identifying at least one activated first trigger marker in at least one partial range of mutually-adjacent parameter pairs; and

activating a second trigger marker associated with the partial range with at least one identified activated first trigger marker.

18. The method for triggering a recording of a measured signal according to claim 17, further comprising:

comparing several first or second trigger markers with activated second reference markers; and

triggering the recording of the measured signal in the event of at least N first or second trigger markers being identical to the N associated activated second reference markers,

whereby N is a number of parameter pairs with a difference between the measured signal and a reference measured signal being necessary to start the triggering of the recording of the measured signal.

19. The method for triggering a recording of a measured signal according to claim 16, further comprising:

comparing several first trigger markers with associated activated first reference markers in at least one partial range of mutually-adjacent parameter pairs; and

activating a second trigger marker associated with the partial range with at least N first trigger markers being identical to the N associated activated first reference markers,

whereby N is a number of parameter pairs with a difference between the measured signal and a reference measured signal being necessary to start the triggering of the recording of the measured signal.

20. The method for triggering a recording of a measured signal according to claim 19, further comprising:

comparing several first or second trigger markers with associated activated second reference markers; and

triggering the recording of the measured signal in the event of at least N first or second trigger markers being identical to the N associated activated second reference markers.