US 8,788,229 B2Granted

Digital oscilloscope and method for controlling the same

AssigneeRigol Technologies Co., Ltd.

InventorsYue Wang, Tiejun Wang, Weisen Li

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Abstract

Provided are a digital oscilloscope and a method for controlling the same. The digital oscilloscope comprises a trace intensity synthesizer including a first intensity memory and a second intensity memory. The controlling procedure performed by the digital oscilloscope includes: a determining step for determining whether the time interval of a trigger signal is larger than a predetermined threshold, a first fluorescence processing step performed when the time interval of a trigger signal is equal to or less than the predetermined threshold, and a second fluorescence processing step performed when the time interval of a trigger signal is larger than the predetermined threshold. The digital oscilloscope can automatically select the dynamic fluorescence effect to pay attention to the long-term variation of a signal when the triggering rate is low, and the static fluorescence effect to pay attention to the rapid variation of a signal when the triggering rate is high.

Claims12

Dependent claims

A method for controlling a digital oscilloscope comprising a trace intensity calculator for generating intensity information of a waveform trace, a trace intensity synthesizer for generating accumulated intensity information according to the intensity information of the waveform trace generated by said trace intensity calculator, and a displaying means for displaying a waveform according to said accumulated intensity information;

and said method including the steps of:
a determining step for determining, by a controller, whether a time interval between trigger signals is larger than a predetermined threshold, turning to a static fluorescence processing step when said time interval between the trigger signals is equal to or less than the predetermined threshold, and otherwise turning to a dynamic fluorescence processing step;
the static fluorescence processing step for accumulating the intensity information of a plurality of waveform traces generated by said trace intensity calculator to generate the accumulated intensity information corresponding to a static fluorescence effect;
and
the dynamic fluorescence processing step for attenuating old accumulated intensity information and accumulating the intensity information of the waveform trace newly generated by said trace intensity calculator on the basis of the attenuated accumulated intensity information to generate new accumulated intensity information corresponding to a dynamic fluorescence effect.

2 more elements

A digital oscilloscope, comprising:

a trace intensity calculator for generating intensity information of a waveform trace;
a trace intensity synthesizer for generating accumulated intensity information according to the intensity information of a plurality of waveform traces generated by said trace intensity calculator;
a displaying means for displaying a waveform according to said accumulated intensity information;
and
a controller for determining whether a time interval between trigger signals is larger than a predetermined threshold,
making said trace intensity synthesizer accumulate the intensity information of a plurality of waveform traces generated by said trace intensity calculator to generate the accumulated intensity information corresponding to a static fluorescence effect when said time interval between the trigger signals is equal to or less than the predetermined threshold, and
making said trace intensity synthesizer attenuate old accumulated intensity information and accumulate the intensity information of the waveform trace newly generated by said trace intensity calculator on the basis of the attenuated accumulated intensity information to generate new accumulated intensity information corresponding to a dynamic fluorescence effect when said time interval between the trigger signals is larger than the predetermined threshold.

4 more elements

Dependencies are inferred from the claim text.