error detection and correction - définition. Qu'est-ce que error detection and correction
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Qu'est-ce (qui) est error detection and correction - définition

TECHNIQUES THAT ENABLE RELIABLE DELIVERY OF DIGITAL DATA OVER UNRELIABLE COMMUNICATION CHANNELS
Error-detecting system; Redundancy check; Error control; Error correction; Error-detecting code; Error detection; Error detector; Error checking; Error-correction; Error Control Coding; Error Correction; Error detecting code; Error Checking and Correcting; Error correction and detection; Error Detection; Error coding; Error detection code; Error recovery; Error-correcting; Error detection coding; Error detection & correction; EDAC (Linux); Bluesmoke (Linux); Error checking and correcting
  • To clean up transmission errors introduced by Earth's atmosphere (left), Goddard scientists applied Reed–Solomon error correction (right), which is commonly used in CDs and DVDs. Typical errors include missing pixels (white) and false signals (black). The white stripe indicates a brief period when transmission was interrupted.

error detection and correction         
<algorithm, storage> (EDAC, or "error checking and correction", ECC) A collection of methods to detect errors in transmitted or stored data and to correct them. This is done in many ways, all of them involving some form of coding. The simplest form of error detection is a single added {parity bit} or a cyclic redundancy check. Multiple parity bits can not only detect that an error has occurred, but also which bits have been inverted, and should therefore be re-inverted to restore the original data. The more extra bits are added, the greater the chance that multiple errors will be detectable and correctable. Several codes can perform Single Error Correction, Double Error Detection (SECDEC). One of the most commonly used is the Hamming code. At the other technological extreme, cuniform texts from about 1500 B.C. which recorded the dates when Venus was visible, were examined on the basis of contained redundancies (the dates of appearance and disappearance were suplemented by the length of time of visibility) and "the worst data set ever seen" by [Huber, Zurich] was corrected. RAM which includes EDAC circuits is known as {error correcting memory} (ECM). [Wakerly, "Error Detecting Codes", North Holland 1978]. [Hamming, "Coding and Information Theory", 2nd Ed, Prentice Hall 1986]. (1995-03-14)
Error detection and correction         
In information theory and coding theory with applications in computer science and telecommunication, error detection and correction (EDAC) or error control are techniques that enable reliable delivery of digital data over unreliable communication channels. Many communication channels are subject to channel noise, and thus errors may be introduced during transmission from the source to a receiver.
Error correction code         
  • A block code (specifically a [[Hamming code]]) where redundant bits are added as a block to the end of the initial message
  • A continuous code [[convolutional code]] where redundant bits are added continuously into the structure of the code word
  • A short illustration of interleaving idea
SCHEME FOR CONTROLLING ERRORS IN DATA OVER NOISY COMMUNICATION CHANNELS
Error-correcting code; Forward error correction; Error correcting code; Error correcting codes; Channel coding; Forward Error Correction; Error Correcting Code; Interleaver; Error correction codes; Channel Coding; Error-correcting codes; Bit-interleaving; Forward error correction code; Forward error correction codes; Error correction coding; Error correcting coding; Error-correcting coding; Bit interleaving; Error-correction code; Error-correction coding; FEC code; Forward error recovery; List of error-correcting codes
In computing, telecommunication, information theory, and coding theory, an error correction code, sometimes error correcting code, (ECC) is used for controlling errors in data over unreliable or noisy communication channels. The central idea is the sender encodes the message with redundant information in the form of an ECC.

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Error detection and correction

In information theory and coding theory with applications in computer science and telecommunication, error detection and correction (EDAC) or error control are techniques that enable reliable delivery of digital data over unreliable communication channels. Many communication channels are subject to channel noise, and thus errors may be introduced during transmission from the source to a receiver. Error detection techniques allow detecting such errors, while error correction enables reconstruction of the original data in many cases.