Appeal No. 1998-0741
Application 08/194,279
An image data enlarging/smoothing processor for carrying
out an interpolation process of pixels simultaneously with a
pixel density conversion of binary image data, comprising:
connective pattern detecting means for detecting a form
of a connective pattern of reference pixels adjoining to a
marked pixel;
enlarging/smoothing processing means operating such that
said processing means enlarges the marked pixel on the basis
of enlargement ratios in fast and slow scan directions,
thereby enlarging and smoothing the marked pixel on the basis
of the form of the connective pattern of the reference pixels
and processing positions in the fast and slow scan directions;
said connective pattern detecting means detecting forms
of four directions of a black-pixel connective pattern of 1 :
1 and forms of eight directions of black-pixel connective
patterns of
1 : 2 to 1 : n (n being a positive integer); and
said enlarging/smoothing processing means enlarging the
marked pixel in accordance with an enlargement ratio, and
interpolating the enlarged pixel in accordance with the
detected form of the connective pattern.
The references relied upon by the examiner as evidence of
obviousness are:
Abe et al. (Abe) 4,833,531 May 23,
1989
Nakajima et al. (Nakajima) 4,841,375 Jun. 20,
1989
Sakuragi 4,893,258 Jan. 09,
1990
Nakamura 5,168,373 Dec. 01,
1992
Chen et al. (Chen) 5,438,630 Aug. 01,
1995
Claims 2 and 3 stand rejected under 35 U.S.C. § 103 as
being unpatentable over Nakajima in view of Nakamura and Chen.
2
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