Threshold setting circuit

Details Threshold setting circuit Threshold setting circuit

1979-08-29

1981-03-31

Boudreau, Leo H.

Communications: electrical

Digital comparator systems

G06K 938

Patent

active

042596629

ABSTRACT:
A threshold setting circuit having a detector for detecting the brightest or highest level of a screen which consists of a plurality of picture elements and a device for setting a threshold value by suitably reducing the brightest or highest level detected by the detector.

REFERENCES:
patent: 3225213 (1965-12-01), Hinrichs et al.
patent: 3502993 (1970-03-01), Schurzinger et al.
patent: 3668634 (1972-06-01), Kruklitis
patent: 3675201 (1972-07-01), McKissick et al.
patent: 3701099 (1972-10-01), Hall et al.
patent: 3820068 (1974-06-01), McMillin
patent: 4034342 (1977-07-01), Kruklitis

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