Panasonic IMAGECHECKER PV230, Руководство пользователя

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Data Matrix
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Data matrix structure
Cell Square or dot which is
the minimum unit that
composes Data Matrix
code.
L-shaped alignment
pattern Mark to detect the
position of a code.
L-shaped alignment
pattern Pattern where bright
cells and dark cells
are alternately
arrayed linearly.
•
The position of Data Matrix code is identified
using the L-shaped alignment pattern and the
alignment pattern with a clock which bright
cells and cark cells are alternately arrayed.
•
Set the view range to make one module to be
4x4 pixels or more.
•
One module of quiet zone is necessary
around the code to recognize it.
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QR Code
■
QR Code structure
Cell Square or dot which is
the minimum unit that
composes QR code.
Position detection
patter Mark to detect the
position of a code. It is
located in three
corners of the code.
Alignment pattern Pattern to correct the
distortion of a captured
pattern. (This pattern is
arrayed in QR code at
regular intervals and
corrects distortion.)
Timing pattern Pattern where bright
cells and dark cells are
alternately arrayed
linearly.
•
Set the view range to make one module to be
3x3 pixels or more.
•
Four modules of quiet zones are necessary
around the code to recognize it.
The required minimum number of pixels for each element or module of a code may increase depending on
the printing condition of the code. Also, note codes that are less than the minimum number of pixels may not
be read.