Appeal No. 2002-1705
Application 09/132,751
tolerances must be minimized in order to maintain high quality
image scanning, since each block is scanned individually to make
up the entire image. See pages 2 and 3 of Appellant’s
specification. To illustrate this problem, a vertical line drawn
down through the horizontally arranged blocks of a document
original, as shown in figure 2A, is scanned. Due to the above
described assembly tolerances, a distorted reproduction such as
shown in figure 2B results. Although high-precision
manufacturing may be employed to minimize this problem, such
tolerances will always exist to some degree. See page 3 of
Appellant’s specification.
Appellant solves this problem by calculating a set of
correction values for a given scanner at the time of manufacture
and storing the correction values in a programmable read only
memory. The pre-stored correction values are used to correct the
image distortion produced by assembly tolerances. See page 4 of
Appellant’s specification.
Figure 3 is a flow chart of a process for calculating
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Last modified: November 3, 2007