Apparatus for displaying analog signatures of an electronic comp

Details Apparatus for displaying analog signatures of an electronic comp Apparatus for displaying analog signatures of an electronic comp

1988-02-29

1990-05-08

Eisenzopf, Reinhard J.

Electricity: measuring and testing

Plural, automatically sequential tests

324121R, 324158T, 324158R, G01R 3122, G01R 1320

Patent

active

049241753

ABSTRACT:
An apparatus for displaying analog signatures of an electronic device is attached to the electronic device and periodically subjects the electronic device to one, two, three or four selected test conditions. The responses of the electronic device to each of the test conditions are received as a pair of response signals, which constitute an analog signature of the electronic device. The two signals in each signature are respectively used to drive horizontal and vertical deflections of a CRT, which causes the signatures corresponding to each of the selected test conditions to be displayed simultaneously. If desired, the apparatus can be attached to a second electronic device, the selected test conditions alternately applied to the two devices, and the corresponding signatures alternately displayed on the CRT. This allows comparisons of the two electronic devices to be readily made.

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Dollekamp et al; "P.sup.2 CCD in 60 MHz Oscilloscope with Digital Image Storage"; Philips Tech. Rev. 40, No. 2/3; 1982; pp. 55-68.

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