Universal analog and digital tester

Details Universal analog and digital tester Universal analog and digital tester

1979-03-23

1981-06-02

Atkinson, Charles E.

Excavating

324 73R, 364580, G01R 3128, G06F 1100

Patent

active

042715156

ABSTRACT:
Method and apparatus for comparison-type testing of electronic devices which generate analog waveform output signals. A reference unit output signal and an output signal of a unit under test are paired and selectively and synchronously compared in response to a common input signal. The comparison is performed by means of subtraction producing an error signal, which error signal is compared against a limit window. The limit window may have fixed or preferably programmable amplitude limits whereby a digital decision signal is generated whenever the limits are exceeded.

REFERENCES:
patent: 3810012 (1974-05-01), Harris
patent: 3812426 (1974-05-01), Illian
patent: 3821645 (1974-06-01), Vinsani
patent: 4044244 (1977-08-01), Foreman et al.
patent: 4125763 (1978-11-01), Drabing et al.
patent: 4139147 (1979-02-01), Franke
patent: 4168527 (1979-09-01), Winkler
patent: 4176314 (1979-11-01), Yamada

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