Facsimile and static presentation processing – Facsimile – Facsimile measuring – testing – or calibrating
Reexamination Certificate
2011-06-28
2011-06-28
Haskins, Twyler L (Department: 2625)
Facsimile and static presentation processing
Facsimile
Facsimile measuring, testing, or calibrating
C358S447000, C358S504000
Reexamination Certificate
active
07969620
ABSTRACT:
An image reader includes an image sensor including a plurality of light receiving elements. The plurality of light receiving elements receive a reflection light from a document and perform photoelectric conversion. The image reader further includes an MTF calculation portion which calculates an MTF of the image sensor based on image data which is obtained by reading a predetermined MTF detection pattern. Moreover, the image reader includes an image processing portion which divides the plurality of light receiving elements into a first MTF region and a second MTF region. The image processing portion performs a first image process on the plurality of image signals which are outputted from the light receiving elements in the first MTF region and a second image process on the plurality of image signals which are outputted from the light receiving elements in the second MTF region.
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Baker & Botts L.L.P.
Brother Kogyo Kabushiki Kaisha
Haskins Twyler L
Pachol Nicholas C
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