Wasp Bar Code WLS 8400 FZ manual Decoder, Density, Depth of Field, Diffuse Reflection, Discrete 2

Glossary GL-7

Decoder	An electronic package that receives the signals from
	the scanning function, performs the algorithm to
	interpret the signals into meaningful data and
	provides the interface to other devices.
Density	Describes the relative amount of memory contained
	in a radio frequency identification tag (see Bar Code
	Density).
Depth of Field	The range between minimum and maximum
	distances at which a scanner can read a symbol with
	a certain minimum element width.
Diffuse Reflection	The component of reflected light that emanates in all
	directions from the reflecting surface.
Discrete 2 of 5	A binary bar code symbology representing each
	character by a group of five bars, two of which are
	wide. The location of wide bars in the group
	determines which character is encoded; spaces are
	insignificant. Only numeric characters (0 to 9) and
	START/STOP characters may be encoded.
Discrete Code	A bar code or symbol in which the spaces between
	characters (intercharacter gaps) are not part of the
	code.
EAN	European Article Number. This European/
	international version of the UPC provides its own
	coding format and symbology standards. Element
	dimensions are specified metrically. EAN is used
	primarily in retail.
EAN/U.P.C.	A fixed-length, numeric 13-digit bar code symbol
	consisting of 30 dark elements and 29 intervening
	light elements. Each character is represented by 2
	bars and 2 spaces over 7 modules. A bar may be
	comprised of 1, 2, 3 or 4 modules. Each EAN/U.P.C.
	symbol consists of a leading quiet zone, a start
	pattern, 7 left-hand data characters, a center bar
	pattern, 5 right-hand data characters, a Modulo 10
	check character, a stop pattern and a trailing quiet
	zone. U.P.C. is often considered a 12-digit code. The
	13th digit of EAN/U.P.C. symbol is a derived
	character in the left-most position. In the case of
	U.P.C., this derived left-most character is a 0.
Element	Generic term for a bar or space.