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Definition of "CRC" |
Cyclic Redundancy Check: A check value calculated from the data, to catch most transmission errors. A decoder calculates the CRC for the received data and compares it to the CRC that the encoder calculated, which is appended to the data. A mismatch indicates that the data was corrupted in transit. Depending on the algorithm and number of CRC bits, come CRCs contain enough redundant information that they can be used to correct the data. / [Cyclic Redundancy Code] The term "CRC" seems to be reserved for algorithms that are based on the "polynomial" division. The essential mathematical operation in the calculation of a CRC is binary division, and the remainder from the division determines the CRC. CRC's cannot, however, be safely relied upon to verify data integrity. CRC types are often identified by the polynomial, which is the number used as the divisor. A number of pages on this site make reference to the CRC used for different electronic Interface Buses. / Cyclic Redundancy Check, Climate Research Committee, Cooperative Research Centre, Committee on the Rights of the Child, Christian Reformed Church, Santa Ana Airport, Chemical Rubber Company, Central Remedial Clinic, Chicago Recording Company, Camp Red Cloud, Cambodian Red Cross, Child Registration Certificate, Chifley Research Centre, Commission for Rural Communities, Cyclic Redundancy Check, circuit routing chart, Civilian Response Corps (DOS), civil response corps, coastal riverine company, control and reporting center, CONUS replacement center, COOP response cell, crisis reaction center, cyclic redundancy rate / Cyclic Redundancy Check is a check value calculated from the data, to catch most transmission errors. A decoder calculates the CRC for the received data and compares it to the CRC that the encoder calculated, which is appended to the data. A mismatch indicates that the data was corrupted in transit. Depending on the algorithm and number of CRC bits, come CRCs contain enough redundant information that they can be used to correct the data. / Cyclic redundancy check is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data. Blocks of data entering these systems get a short check value attached, based on the remainder of a polynomial division of their contents; on retrieval the calculation is repeated, and corrective action can be taken against presumed data corruption if the check values do not match. / A cyclic redundancy check (CRC) is an error-detecting code commonly used in digital networks and storage devices to detect accidental changes to raw data. Blocks of data entering these systems get a short check value attached, based on the remainder of a polynomial division of their contents, on retrieval the calculation is repeated, and corrective action can be taken against presumed data corruption if the check values do not match. / The degree of isochronous distortion, in data transmission, is the ratio of the absolute value of the maximum measured difference between the actual and the theoretical intervals separating any two significant instants of modulation or demodulation, to the unit interval. These instants are not necessarily consecutive. This value is usually expressed as a percentage. / See cyclic redundancy check. |
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