Facsimile and static presentation processing – Static presentation processing – Attribute control
Reexamination Certificate
2006-12-19
2006-12-19
Rogers, Scott A. (Department: 2625)
Facsimile and static presentation processing
Static presentation processing
Attribute control
C358S003160, C358S003230
Reexamination Certificate
active
07151619
ABSTRACT:
An image formation apparatus includes an aperiodic data generating unit for generating aperiodic data between pixel areas having a neighboring relation every pixel area comprising a plurality of pixels having an interlocking relation of the image data, a threshold value deciding unit for converting the aperiodic data into a plurality of threshold data for forming a systematic dot array in the pixel area, and a gradation conversion processing unit for performing a gradation converting process by comparing the image data with the threshold data, thereby reducing a signal processing amount as compared with that in case of performing the propagating process on a pixel unit basis.
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Inuduka Tatsuki
Toyoda Yasutaka
Antonelli, Terry Stout and Kraus, LLP.
Hitachi , Ltd.
Rogers Scott A.
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