Datalogic Scanning Matrix-1000 사용자 설명서

 

 
 
Barcodes (1D Codes) 
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.  
 
BIOS 
Basic Input Output System. A collection of ROM-based code with a standard API used to 
interface with standard PC hardware. 
 
Bit 
Binary digit. One bit is the basic unit of binary information. Generally, eight consecutive bits 
compose one byte of data. The pattern of 0 and 1 values within the byte determines its 
meaning. 
 
Bits per Second (bps) 
Number of bits transmitted or received per second. 
 
Byte 
On an addressable boundary, eight adjacent binary digits (0 and 1) combined in a pattern to 
represent a specific character or numeric value. Bits are numbered from the right, 0 through 
7, with bit 0 the low-order bit. One byte in memory can be used to store one ASCII character. 
 
Composite Symbologies 
Consist of a linear component, which encodes the item's primary data, and an adjacent 2D 
composite component, which encodes supplementary data to the linear component. 
 
Dark Field Illumination 
Lighting of surfaces at low angles used to avoid direct reflection of the light in the reader’s 
lens. 
 
Decode 
To recognize a barcode symbology (e.g., Codabar, Code 128, Code 3 of 9, UPC/EAN, etc.) 
and analyze the content of the barcode scanned. 
 
Depth of Field 
The difference between the minimum and the maximum distance of the object in the field of 
view that appears to be in focus. 
 
Diffused Illumination 
Distributed soft lighting from a wide variety of angles used to eliminate shadows and direct 
reflection effects from highly reflective surfaces. 
 
EEPROM 
Electrically Erasable Programmable Read-Only Memory. An on-board non-volatile memory 
chip. 
 
Element 
The basic unit of data encoding in a 1D or 2D symbol. A single bar, space, cell, dot.