Image processing apparatus and method

Details Image processing apparatus and method Image processing apparatus and method

1997-01-16

2000-04-18

Barlow, John

Incremental printing of symbolic information

Light or beam marking apparatus or processes

Scan of light

B41J 247, G01D 1514

Patent

active

060521414

ABSTRACT:
An image processing apparatus includes an input unit for inputting an image signal, a conversion unit for converting the image signal input by the input unit into a pulsewidth modulated signal, a driving unit for driving a beam emission device for forming an image in accordance with the pulsewidth modulated signal, a detection unit for detecting an intensity of a beam emitted from the beam emission device, and a setting unit for setting conversion conditions for the conversion unit in accordance with an output from the detection unit. In another aspect, the image processing apparatus includes an input unit for inputting an image signal, a correction unit for correcting the image signal input by the input unit, a driving unit for driving a beam emission device for forming an image in accordance with the corrected image signal, a detection unit for detecting an intensity of a beam emitted from the beam emission device, and a setting unit for setting correction conditions for the correction unit in accordance with an output from the detection unit, wherein the driving unit controls a peak intensity of the beam in accordance with the output from the detection unit.

REFERENCES:
patent: 4794413 (1988-12-01), Yamazaki et al.
patent: 4897734 (1990-01-01), Sato et al.
patent: 5225850 (1993-07-01), Egawa et al.

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