Facsimile and static presentation processing – Facsimile – Recording apparatus
Patent
1992-10-30
1996-07-09
Wong, Peter S.
Facsimile and static presentation processing
Facsimile
Recording apparatus
358451, 382298, H04N 1393, G06K 942
Patent
active
055350070
ABSTRACT:
A method and device for enlarging or reducing an original image to obtain a copy image adjusted in magnification includes designating the image input parameters and calculating the control factors in accordance with the desired magnification, scheduling the function information of the magnification needed for the magnification process to be a form of look-up table, and executing the insertion or omission of the pixel or line which correspond to the desired magnification by an interpolation method. The device includes means for executing the magnification conversion in the main-scanning direction with the insertion or removal of the pixel data, and means for inserting or omitting the scanning line with a control for the phase shift of a motor. The pitches of the output pixels in the main and sub-scanning directions can be set arbitrarily and the magnification conversion can be achieved in a unit of 1%.
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patent: 4833531 (1989-05-01), Abe et al.
patent: 5008752 (1991-04-01), Van Nostrand
patent: 5029017 (1991-07-01), Abe et al.
patent: 5189529 (1993-02-01), Ishiwata et al.
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Frahm Eric
Samsung Electronics Co,. Ltd.
Wong Peter S.
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