C2R Colibri 5 Series, User Manual

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Colibri serie 5 : User’s guide
© 2000-2008 C2R Technologie, Sarl. All rights reserved.
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Rev. C
Decode Search Mode
There are three selectable decode (scanning) modes:
Full Omni directional - Searches for bar code features beginning at the center of an image, and
searches to the image‟s limits. This mode reads all symbologies (including OCR), in any
orientation. The Full Omni directional search is very thorough which may slow performance time.
Note:
This search mode is the default setting for the 2D OEM Engines.
Quick Omni directional - This is an abbreviated search for bar code features around the center
region of an image. This mode quickly reads all symbologies in any orientation. The Quick Omni
directional mode may miss some off-center symbols, as well as larger Data Matrix and QR Code
symbols.
Advanced Linear Decoding - Performs quick horizontal linear scans in a center band of the
image. This mode is not unidirectional, but does quickly read linear and stacked bar codes.
Advanced Linear Decoding cannot read 2D, OCR, or Postal symbols.
Note:
This search mode is the default setting for the point-and-shoot PDF OEM Engines.
Preferred Symbology
Note: This selection does not apply to OCR.
The imager can be programmed to specify one symbology as a higher priority over other
symbologies in situations where both barcode symbologies appear on the same label, but the
lower priority symbology cannot be disabled.
For example, you may be using the imager in a retail setting to read UPC symbols, but have
occasional need to read a code on a drivers license. Since some licenses have a Code 39
symbol as well as the PDF417 symbol, you can use Preferred Symbology to specify that the
PDF417 symbol be read instead of the Code 39.
Preferred Symbology classifies each symbology as
high priority , low priority , or as an
unspecified type . When a low priority symbology is presented, the imager ignores it for a set
period of time (see Preferred Symbology Time-out on page 41) while it searches for the high
priority symbology. If a high priority symbology is located during this period, then that data is read
immediately.
If the time-out period expires before a high priority symbology is read, the imager will read any
barcode in its view (low priority or unspecified). If there is no barcode in the imager‟s view after
the time-out period expires, then no data is reported.