Block check character
Encyclopedia
In telecommunication
s, a block check character (BCC) is a character
added to a transmission block
to facilitate error detection
.
In Longitudinal redundancy check
ing and cyclic redundancy check
ing, block check characters are computed for, and added to, each message
block transmitted. This block check character is compared with a second block check character computed by the receiver to determine whether the transmission is error free.
Telecommunication
Telecommunication is the transmission of information over significant distances to communicate. In earlier times, telecommunications involved the use of visual signals, such as beacons, smoke signals, semaphore telegraphs, signal flags, and optical heliographs, or audio messages via coded...
s, a block check character (BCC) is a character
Character (computing)
In computer and machine-based telecommunications terminology, a character is a unit of information that roughly corresponds to a grapheme, grapheme-like unit, or symbol, such as in an alphabet or syllabary in the written form of a natural language....
added to a transmission block
Transmission block
In telecommunication, the term transmission block has the following meanings:#A group of bits or characters transmitted as a unit and usually containing an encoding procedure for error control purposes....
to facilitate error detection
Error detection and correction
In information theory and coding theory with applications in computer science and telecommunication, error detection and correction or error control are techniques that enable reliable delivery of digital data over unreliable communication channels...
.
In Longitudinal redundancy check
Longitudinal redundancy check
In telecommunication, a longitudinal redundancy check or horizontal redundancy check is a form of redundancy check that is applied independently to each of a parallel group of bit streams...
ing and cyclic redundancy check
Cyclic redundancy check
A cyclic redundancy check is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data...
ing, block check characters are computed for, and added to, each message
Message
A message in its most general meaning is an object of communication. It is a vessel which provides information. Yet, it can also be this information. Therefore, its meaning is dependent upon the context in which it is used; the term may apply to both the information and its form...
block transmitted. This block check character is compared with a second block check character computed by the receiver to determine whether the transmission is error free.