Asynchronous digital circuit testing system

Registers – Systems controlled by data bearing records – Time analysis

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324 73R, G06F 1100

Patent

active

041229959

ABSTRACT:
Improved means and methods are described for continuously and asynchronously testing the operation of a digital circuit or unit. The testing approach is based on determining whether an output signal from the unit under test is out of skew with a corresponding output from a standard unit for at least an adjustable predetermined minimum time period.

REFERENCES:
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patent: 3636443 (1972-01-01), Singh et al.
patent: 3740645 (1973-06-01), Cook
patent: 3755747 (1973-08-01), Letoskyy
patent: 3812426 (1974-05-01), Illian
patent: 3821645 (1974-06-01), Vinsani
patent: 3976940 (1976-08-01), Chau et al.

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