Image reading apparatus

Details Image reading apparatus Image reading apparatus

2005-01-25

2009-10-13

Grant, II, Jerome (Department: 2625)

Facsimile and static presentation processing

Facsimile

Picture signal generator

C358S482000, C358S451000

Reexamination Certificate

active

07602536

ABSTRACT:
The image reading apparatus comprising an image sensor with plurality of reading devices one-dimensionally aligned in a main scanning direction allows reducing memory space necessary for image reduction process. Pixel signals in each channel read by a line image sensor are converted into pixel data in AFE, valid pixel data are captured therefrom, and then inputted into a reduction process unit. The reduction process unit skips pixel data sequentially inputted therein with predetermined intervals based on preset data reduction rate. Subsequently, pixel data after reduction process, that is only unskipped pixel data, are written into a memory via writing unit and memory control unit.

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patent: 403121415 (1991-05-01), None
patent: 09-130592 (1997-05-01), None
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