Picture reading device for discriminating the type of...

Details Picture reading device for discriminating the type of... Picture reading device for discriminating the type of...

2003-04-23

2008-03-04

Rogers, Scott A. (Department: 2625)

Facsimile and static presentation processing

Static presentation processing

Attribute control

C358S406000, C382S108000

Reexamination Certificate

active

07339702

ABSTRACT:
Provided is a picture reading device that is suited for discriminating the type/surface condition of a recording medium while requiring only a small circuit scale and less memory, and an image forming apparatus that uses the picture reading device. In a CMOS area sensor chip having a plurality of photoelectric conversion elements, there is provided a calculating unit for calculating the maximum value, the minimum value, and an average value of digital information related to a photoelectric conversion element in a specific area among the plurality of photoelectric conversion elements. Information calculated by the calculating unit is output in addition to digital information related to the plurality of photoelectric conversion elements.

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patent: 11216938 (1999-08-01), None
patent: 11271037 (1999-10-01), None
English abstract & translation of JP 11271037 A published patent application.

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