Adjustable aperture correction system

Details Adjustable aperture correction system Adjustable aperture correction system

1975-04-30

1977-05-03

Martin, John C.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

307268, H04N 548

Patent

active

040218481

ABSTRACT:
A signal receiver having a source of video signals includes an aperture correction system wherein an electron device coupled to the video signal source provides first and second oppositely-phased output signals which are applied to a circuit means to be differentiated and delayed respectively and applied to a summing terminal with desired preshoot and overshoot characteristics. Moreover, these characteristics are selectable by an adjustable impedance coupled to the circuit means providing the differentiated and delayed signals.

REFERENCES:
patent: 3377425 (1968-04-01), Buzan
patent: 3643011 (1972-02-01), Engel et al.
patent: 3800265 (1974-03-01), Yoshioka et al.
patent: 3806794 (1974-04-01), Vidovic
patent: 3849792 (1974-11-01), Holzrichter

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