Appeal No. 2002-1705
Application 09/132,751
according to the Appellant’s invention. See page 6 of
Appellant’s specification.
Referencing to figure 3, a vertical line is scanned such as
shown in figure 2A. See page 7 of Appellant’s specification.
The scanned vertical line is compared to the ideal vertical line.
A set of shift-correction values are calculated corresponding to
the right and left correction shifting needed to correct the
scannedline to become the ideal vertical line. See page 8 of the
Appellant’s specification. A complete set of shift-correction
values is stored in the PROM memory device of the manufactured
scanner. This is shown as step S33 in figure 3. See page 8 of
Appellant’s specification.
Referring to figure 5, to correct the vertical alignment
error of a document original to be scanned, the block count N is
initialized in a step S51, in order to begin the scanning at the
first block. Then, in a step S52, scanning and rasterization of
the Nth block is performed in the conventional manner. The
vertical alignment of each dot of the rasterized block is
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