US5414635A
Expired / Lapsed
US
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Oscilloscope with dynamic triggering determination
Assignee: Panasonic Holdings Corp
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Filing: 1992-11-02
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Granted: 1995-05-09
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Expires: 2012-11-02
Abstract
Abstract An oscilloscope in which an observer is freed from the troubles of triggering operations. Further, the processing speed of the oscilloscope is high, the number of errors is small, and it is also adequate to use a small memory capacity. Main period components included in a signal to be observed are extracted, waveforms regarding the extracted period components and information indicating with which period components the waveforms are triggered are displayed. The trigger can be varied to operate in response to other period components and the sweep time also can be varied.
Inventors
- 👤 Genichiro Ohta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 01:13
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/32; Y; Y10; Y10S; Y10S706/00; Y10S706/90
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
61 words
An oscilloscope comprising: means for extracting main period components included in a signal to be observed; means for displaying waveforms regarding the extracted period components and information indicating with which period components the waveforms are triggered on a screen; and means for triggering with other period components selected from said extracted main period components by an input from an operating section.
Claim 2
Dependent Claim
61 words
An oscilloscope comprising: means for extracting main period components included in a signal to be observed; means for displaying waveforms regarding the extracted period components and information indicating with which period components the waveforms are triggered on a screen; and means for triggering with other period components selected from said extracted main period components by an input from an operating section.
Claim 3
Dependent Claim
29 words
An oscilloscope according to claim 1, wherein said means for triggering with other period components comprises means for switching a sweep time by said input from said operating section.
Claim 4
Dependent Claim
41 words
An oscilloscope according to claim 2, wherein input signals and a predetermined reference signal are compared and only the input signals exceeding said reference signal are detected as period components, and said comparison is sequentially executed while changing the reference signal.
Claim 5
Dependent Claim
37 words
An oscilloscope according to claim 2, wherein with respect to one of the extracted period components, the waveform of said one extracted period component and information indicating with which period component said waveform is triggered are displayed.
Claim 6
Dependent Claim
79 words
An oscilloscope according to claim 2, comprising: means for displaying on said waveform display means the individual waveforms regarding a plurality of kinds of period components among said extracted period components and information indicating with which period components said waveforms are triggered; and means for triggering with other plurality of kinds of period components different from the period components displayed at present on said waveform display means and switching the sweep times by an input from the operating section.
Claim 7
Dependent Claim
40 words
An oscilloscope according to claim 5, wherein input signals and a predetermined reference signal are compared, only the input signals exceeding said reference signal are detected as period components, and said comparison is sequentially executed while changing the reference signal.
Claim 8
Dependent Claim
63 words
An oscilloscope according to claim 2, comprising: means for sequentially displaying the waveforms about said extracted period components and information indicating with which period components said waveforms are triggered on said waveform display means; and means for fixing said waveform display means or displaying upon said waveform display means waveforms which were displayed in the past by an input from the operating section.
Claim 9
Dependent Claim
39 words
An oscilloscope according to claim 7, wherein input signals and a predetermined reference signal are compared, only the signals exceeding said reference signal are detected as period components, and said comparison is sequentially executed while changing the reference signal.
Claim 10
Dependent Claim
57 words
An oscilloscope comprising: means for extracting main period components included in a signal to be observed; means for deciding optimum triggering conditions by predetermined membership functions with respect to each of the extracted period components by a fuzzy logic judgment; and means for displaying waveforms about the period components on a screen together with the triggering conditions.
Claim 11
Dependent Claim
57 words
An oscilloscope comprising: means for extracting main period components included in a signal to be observed; means for deciding optimum triggering conditions by predetermined membership functions with respect to each of the extracted period components by a fuzzy logic judgment; and means for displaying waveforms about the period components on a screen together with the triggering conditions.
Claim 12
Dependent Claim
39 words
An oscilloscope according to claim 9, wherein input signals and a predetermined reference signal are compared, only the signals exceeding said reference signal are detected as period components, and said comparison is sequentially executed while changing the reference signal.
Claim 13
Dependent Claim
64 words
An oscilloscope comprising: means for extracting main period components included in a signal to be observed; and means for obtaining optimum conditions of the trigger and waveform display with respect to each of the extracted period components and receiving a teaching signal from an operating section for the waveforms displayed on a screen, thereby learning the optimum conditions of the trigger and waveform display.
Claim 14
Dependent Claim
64 words
An oscilloscope comprising: means for extracting main period components included in a signal to be observed; and means for obtaining optimum conditions of the trigger and waveform display with respect to each of the extracted period components and receiving a teaching signal from an operating section for the waveforms displayed on a screen, thereby learning the optimum conditions of the trigger and waveform display.
Claim 15
Dependent Claim
39 words
An oscilloscope according to claim 11, wherein input signals and a predetermined reference signal are compared, only the signals exceeding said reference signal are detected as period components, and said comparison is sequentially executed by changing the reference signal.
References Cited (Backward Citations)
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