Method and device for the automatic recording of signal curves

Details Method and device for the automatic recording of signal curves Method and device for the automatic recording of signal curves

1988-12-29

1990-02-13

Strecker, Gerard R.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Cathode ray

340715, 364487, G01R 1320, G01R 1332

Patent

active

049010093

ABSTRACT:
In a digital oscilloscope, the recording of transients exceeding a predetermined tolerance range is to be provided by simple means. A method and a device for carrying out this method are provided in which two envelope curves are stored in an envelope curve memory and these are then compared with cyclically repetitive amplitude samples of a signal curve. A trigger signal ensures that the signal curve containing the disturbance is served if one of the signal curves exceeds the tolerance range delimited by the envelope curves, which is the case, in particular, when interference signals occur. This curve can then be displayed for analysis on the screen. The invention can be applied within the context of digital measuring technology wherever signal curves are recorded and instantaneous disturbances must be detected.

REFERENCES:
patent: 3172039 (1965-03-01), Bernstein
patent: 4200896 (1980-04-01), Baumann
patent: 4249186 (1981-02-01), Edwards
patent: 4386614 (1983-06-01), Ryan
patent: 4536760 (1985-08-01), Nabarro et al.
patent: 4734640 (1988-03-01), Kitahori et al.
patent: 4818932 (1989-04-01), Odenheimer
Elektronik, Apr. 18, 1986; Publication 8; pp. 132-136.
Elektronik, Jul. 29, 1983; Publication 15; pp. 67-72.
Elektronik, Jul. 16, 1982; Publication 14; pp. 53-58.

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