SATO CL408e Rfid Manual page 45

RFlD
Systems that read or write data to RF tags that are present in a radio frequency field
projected from RF reading/writing equipment. Data may be contained in one (1) or more
bits for the purpose of providing identification and other information relevant to the object
to which the tag is attached. It incorporates the use of electromagnetic or electrostatic
coupling in the radio frequency portion of the spectrum to communicate to or from a tag
through a variety of modulation and encoding schemes.
RF/AIS
Radio Frequency Automatic Identification Systems
Range
The distance at which successful reading and/or writing can be accomplished.
Read
The decoding, extraction and presentation of data from formatting, control and error
management bits sent from a tag.
Read Only
See Factory Programming
Readability
The ability to extract data under less than optimal conditions.
Read Rate
The maximum rate at which data can be read from a tag expressed in bits or bytes per
second.
Read/Write
Many applications require that new data or revisions to data already in the Tag, be entered
into the Tag, while it remains attached to its object. Tags with this capability are said to be
reprogrammable and are called read/write tags, memory cards or memory modules.
Reader
The device containing the digital electronics which extract and separate the information
from the format definition and error management bits. The digital electronics perform the
actual reading function. These read electronics may also interface to an integral display
and/or provide a parallel or serial communications interface to a host computer or
industrial controller.
Reader/Writer
The set of electronics can change the contents of tags while they remain attached to their
object are called a reader/writer. (See also reader).
Reprogrammable
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