Appendices
I-6
V440-F C-Mount Code Reader User Manual
I-4-3
Axial Non-Uniformity (Data Matrix Only)
Definition:
Axial non-uniformity is a measure of how much the sampling point
spacing differs from one axis to another, namely AN = abs (XAVG -
YAVG) / ((XAVG + YAVG)/2) where abs () yields the absolute value. If a
symbology has more than two major axes, then AN is computed for those
two average spacings which differ the most. (ANSI) axial non-uniformity
grading is defined this way:
A (4.0) if AN < .06
B (2.0) if AN < .08
C (2.0) if AN < .10
D (1.0) if AN < .12
F (0.0) if AN > .12
If enabled, the axial non-uniformity is appended to the symbol data
according the
ISO/IEC 16022 Symbol Quality Output Mode
setting.
Serial Cmd:
<
K709,
symbol contrast,print growth,
axial non-uniformity
,UEC
>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
I-4-4
Unused ECC (Data Matrix Only)
Definition:
The correction capacity of Reed-Solomon decoding is expressed in the
equation: e + 2d < d - p, where
e
is the number of erasures,
d
is the number
of error correction code words, and
p
is the number of code words reserved
for error detection.
A (4.0) if UEC > .62
B (3.0) if UEC > .50
C (2.0) if UEC > .37
D (1.0) if UEC > .25
F (0.0) if UEC < .25
If enabled, the UEC is appended to the symbol data according to the
ISO/IEC 16022 Symbol Quality Output Mode
setting.
Serial Cmd:
<
K709,
symbol contrast,print growth,axial non-uniformity,
UEC
>
Default:
Disabled
Options:
0 = Disabled
1 = Enabled
Summary of Contents for V440-F
Page 1: ...Z452 E 01 84 9000440 02 Rev A V440 F C Mount Code Reader User Manual...
Page 31: ...1 Overview of WebLink Interface 1 16 V440 F C Mount Code Reader User Manual...
Page 139: ...4 Setup 4 76 V440 F C Mount Code Reader User Manual...
Page 183: ...7 Terminal 7 6 V440 F C Mount Code Reader User Manual...
Page 243: ...Appendices A 22 V440 F C Mount Code Reader User Manual...
Page 249: ...Appendices C 4 V440 F C Mount Code Reader User Manual...
Page 283: ...Appendices E 10 V440 F C Mount Code Reader User Manual...
Page 399: ...Appendices I 18 V440 F C Mount Code Reader User Manual...
Page 423: ...Appendices K 14 V440 F C Mount Code Reader User Manual...
Page 437: ...Appendices L 14 V440 F C Mount Code Reader User Manual...
Page 471: ...Appendices N 18 V440 F C Mount Code Reader User Manual...
Page 481: ...Appendices O 10 V440 F C Mount Code Reader User Manual...
Page 493: ...Appendices R 8 V440 F C Mount Code Reader User Manual...
Page 499: ...Appendices S 6 V440 F C Mount Code Reader User Manual...