Motorola 6700 Specifikace stáhnout pdf (Strana 43)

Glossary - 3

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 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.

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.

ENQ (RS-232). ENQ software handshaking is also supported for the data sent to the host.

ESD. Electro-Static Discharge

Host Computer. A computer that serves other terminals in a network, providing such services as computation, database

access, supervisory programs and network control.

Hz. Hertz; A unit of frequency equal to one cycle per second.

IEC. International Electrotechnical Commission. This international agency regulates laser safety by specifying various laser

operation classes based on power output during operation.

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Motorola 6700 Specifikace Strana 43