Block check character

Block check character

In telecommunications, a block check character (BCC) is a character added to a transmission block to facilitate error detection.

In Longitudinal redundancy checking and cyclic redundancy checking, 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.


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  • block check character(s) —    See block redundancy check …   IT glossary of terms, acronyms and abbreviations

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  • block redundancy check —    (BRC)    Information added to a transmitted block to verify accuracy of data before it is accepted. Block check data is developed by the sender as a predefined function of information in the block; the receiver performs the same function on… …   IT glossary of terms, acronyms and abbreviations

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  • check — [chek] n. [ME chek < OFr eschec, eschac, a check at chess, repulse < ML scaccus, scahus < Pers šāh, king, principal piece in a game of chess (see SHAH1); prob. sense development: king in danger hostile action restraining action means of… …   English World dictionary

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  • cyclic redundancy check —    (CRC)    An error detection method in which the block check character is the remainder after dividing all the serialized bits in a transmission block by a predetermined binary number or a polynomial based on transmitted data …   IT glossary of terms, acronyms and abbreviations

  • block — /blɒk / (say blok) noun 1. a solid mass of wood, stone, etc., usually with one or more plane or approximately plane faces. 2. a child s building brick. 3. a mould or piece on which something is shaped or kept in shape, as a hat block. 4. one of… …  

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