RJS Inspector D4000 SP (FIRMWARE version A.06 and Later) - Manual (Page 61)

Operator
’s Guide
Appendix K
002-5572 RJS, Minneapolis, MN 53
Appendix K (Bar code definitions)
Achieved Width
The calculated element width based on measure-
ments.
Alphanumeric
A character set that contains letters, digits, and
other characters such as punctuation marks. Also,
a character that is either numeric or alpha. (In pro-
gramming an alphanumeric cannot be used to do
arithmetic)
ANSI
American National Standards Institute, Inc. 25
West 43rd Street, 4th floor New York, NY 10036
Aperture
The effective opening in an optical system that es-
tablished the field of view.
Application Specification
A set of rules for using bar code symbols.
Aspect Ratio
The ratio of height to width of a bar code symbol.
Bar
An element of a bar code symbol whose reflec-
tance is less than the global threshold. A Bar is the
dark (reflective) element of a bar-code. (As op-
posed to a space which is the light reflective ele-
ment)