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GLOSSARY
ACR™ 4
Each version of the base has the powerful code reconstruction technology (ACR™ 4). The
new fourth generation ACR™ considerably increases the code reconstruction reading
capability in the case of damaged or very tilted barcodes.
Aperture
Term used on the required CDRH warning labels to describe the laser exit window.
Barcode
A pattern of variable-width bars and spaces which represents numeric or alphanumeric data
in machine-readable form. The general format of a barcode symbol consists of a leading
margin, start character, data or message character, check character (if any), stop character,
and trailing margin. Within this framework, each recognizable symbology uses its own unique
format.
Barcode Label
A label that carries a barcode and can be affixed to an article.
Baud Rate
A unit used to measure communications speed or data transfer rate.
CD SQUARE™
CD SQUARE™ provides useful information on label position and object shape elaborated
during the barcode reading phase. This innovative technology identifies the area in which the
code is located and measures the code distance from the scanner.
CDRH (Center for Devices and Radiological Health)
This organization (a service of the Food and Drug Administration) is responsible for the
safety regulations governing acceptable limitations on electronic radiation from laser devices.
Datalogic devices are in compliance with the CDRH regulations.
EEPROM
Electrically Erasable Programmable Read-Only Memory. An on-board non-volatile memory
chip.
FLASH™
FLASH
TM
is the new dynamic focusing system implemented in the DX6400. FLASH
TM
is able
to move the focus position rail to rail, from the minimum position to the maximum position, in
less than 10 msec. In typical applications, where a DOF <1 meter is required, the focus
position is adjusted in 4 msec.
Full Duplex
Simultaneous, two-way, independent transmission in both directions.
Half Duplex
Transmission in either direction, but not simultaneously.
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