Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1991-09-12
1993-11-30
Coles, Sr., Edward L.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
358448, 382 54, H04N 140
Patent
active
052670554
ABSTRACT:
An image processing apparatus has an image sensor for inputting image data obtained by reading an image, a shading correction processing unit for correcting variations in image data input from the image sensor on the basis of correction data, an arithmetic operation processing unit for performing image processing of the image data input from the image sensor, and a memory for storing the correction data to be supplied to the shading correction processing unit and image data to be supplied to the arithmetic operation processing unit.
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patent: 4554583 (1985-11-01), Saitoh et al.
patent: 4672682 (1987-06-01), Naruse et al.
patent: 4774590 (1988-09-01), Haganuma et al.
patent: 4827533 (1989-05-01), Tanaka
patent: 4896222 (1990-01-01), Fukai
Ishida Shinichi
Sakamoto Masahiro
Shinada Yasuyuki
Canon Kabushiki Kaisha
Coles Sr. Edward L.
Grant II Jerome
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