Symbol Technologies LS 2106 manual Code Length, Continuous Code, Dead Zone, Decode Algorithm

Models: LS 2106

1 100
Download 100 pages 5.25 Kb
Page 97
Image 97

 

Glossary

 

 

Code Length

Number of data characters in a bar code between the start and stop

 

characters, not including those characters.

Continuous Code

A bar code or symbol in which all spaces within the symbol are parts

 

of characters. There are no intercharacter gaps in a continuous code.

 

The absence of gaps allows for greater information density.

Dead Zone

An area within a scanner's field of view, in which specular reflection

 

may prevent a successful decode.

Decode

To recognize a bar code symbology (e.g., UPC/EAN) and then

 

analyze the content of the specific bar code scanned.

Decode Algorithm

A decoding scheme that converts pulse widths into data

 

representation of the letters or numbers encoded within a bar code

 

symbol.

Depth of Field

The range between minimum and maximum distances at which a

 

scanner can read a symbol with a certain minimum element width.

Discrete Code

A bar code or symbol in which the spaces between characters

 

(intercharacter gaps) are not part of the code.

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.

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.

Element

Generic term for a bar or space.

Encoded Area

Total linear dimension occupied by all characters of a code pattern,

 

including start/stop characters and data.

Host Computer

A computer that serves other terminals in a network, providing such

 

services as computation, database access, supervisory programs, and

 

network control.

IEC

International Electrotechnical Commission. This international agency

 

regulates laser safety by specifying various laser operation classes

 

based on power output during operation.

 

 

Glossary-3

Page 97
Image 97
Symbol Technologies LS 2106 Code Length, Continuous Code, Dead Zone, Decode Algorithm, Depth of Field, Discrete Code