Direction scaling method and apparatus for image scanning resolu

Details Direction scaling method and apparatus for image scanning resolu Direction scaling method and apparatus for image scanning resolu

1989-05-23

1991-09-10

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Picture signal generator

358474, 358494, H04N 104, H04N 110

Patent

active

050478710

ABSTRACT:
The density of pixel samples across a document is determined by employing a constant scanner sensing head sampling rate and driving the scanner head movement at a rate directly correlated to the preselected density level. The scanner operator determines the particular density and introduces a signal to motor drive controls to cause it to move across the image at the preselected rate.

REFERENCES:
patent: 3670099 (1972-06-01), Oliver
patent: 3919464 (1975-11-01), Kondoh
patent: 4190867 (1980-02-01), Ohnishi
patent: 4367493 (1983-01-01), Matterson
patent: 4394693 (1983-07-01), Shirley
patent: 4591727 (1986-05-01), Gaebeleir et al.
patent: 4704637 (1987-11-01), Mizumo
patent: 4748514 (1988-05-01), Bell
patent: 4922351 (1990-05-01), Suzuki et al.

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