HandHeld Entertainment Document Reader 4800dr - Manual (Page 32)

3 - 10 4800dr Barcode Guide
Decode Search Mode
There are three selectable decode (scanning) modes:
Full Omnidirectional
- Searches for barcode 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 Omnidirectional search is very thorough which
may slow performance time.
Note: This search mode is the default setting.
Quick Omnidirectional - This is an abbreviated search for barcode features around the center region of an image. This mode
quickly reads all symbologies in any orientation. The Quick Omnidirectional 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
omnidirectional, but does quickly read linear and stacked barcodes. Advanced Linear Decoding cannot read 2D, OCR, or Postal
symbols.
Preferred Symbology
Note: This selection does not apply to OCR.
The document reader 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 document reader 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 document reader ignores it for a set period of time (see Preferred Symbology Time-out on page 3-
11) 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 document reader will read any barcode in its view (low
priority or unspecified). If there is no barcode in the document reader’s view after the time-out period expires, then no data is
reported.
Note: A low priority symbol must be centered on the aiming pattern to be read.
Scan a barcode below to enable or disable Preferred Symbology.
Full Omnidirectional
Quick Omnidirectional
Advanced Linear Decoding
* Preferred Symbology Off
Preferred Symbology On