Timing analyzer with combination transition and duration trigger

Details Timing analyzer with combination transition and duration trigger Timing analyzer with combination transition and duration trigger

1982-02-26

1985-01-22

Boudreau, Leo H.

Image analysis

Histogram processing

For setting a threshold

324 73AT, 324 77R, 324121R, 340720, 364487, 364580, G01R 1332, G06K 900

Patent

active

044956428

ABSTRACT:
A timing analyzer incorporates pattern transition and pattern duration triggering. A transition detector detects transitions into or out of selected patterns occurring among the inputs of the analyzer. A time duration comparator compares a selected logical sense of the pattern against a variable duration reference. The outputs of the transition detector and of the time duration comparator are combined with logic circuits to produce a qualified trigger signal indicative of a simple transition into or out of a selected pattern, duration of the pattern longer than some reference, or shorter than that reference.

REFERENCES:
patent: 3551733 (1970-12-01), Johnson
patent: 3790767 (1974-02-01), Alexander
patent: 4100532 (1978-07-01), Farnbach
patent: 4364036 (1982-12-01), Shimizu
patent: 4365193 (1982-12-01), Bollero et al.
patent: 4399512 (1983-08-01), Soma et al.

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