Glossary:

ATIS Telecom Glossary

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Select a term name to open its entry and any media references. Longer definitions end with a “Read More” link.

error budget

The bit-error-ratio requirement allocated to the respective segments of a communications system, such as trunking, switching, access, and terminal devices, in a manner that satisfies the specified system end-to-end bit-error-ratio requirement for transmitted traffic.

error burst

A contiguous sequence of symbols, received over a data transmission channel, such that the first and last symbols are in error and there exists no contiguous subsequence of m correctly received symbols within the error burst.
Note: The integer parameter m is referred to as the guard band of the error burst. The last symbol in a burst and the… (Read More →)

error concealment

In the receipt and processing of digitized television transmissions, a method of covering up errors from dropouts by using the redundancy in most adjacent-frame image information.
Note: Video images are frequently nearly identical from frame to frame. Adjacent video lines frequently have almost the same detail. It becomes possible, therefore, when a "burst error" involving the modification or loss of… (Read More →)

error control

Any technique that will detect or correct errors.

error correction

In the reception or processing of digital data, the use of overhead bits and appropriate algorithms to detect, and within certain constraints, restore a corrupted data stream or block with a high degree of confidence.
Note 1: In addition to applications having to do with conventional data processing and storage, error correction can be used in specialized applications such as… (Read More →)

error message

In a computer or communications system, a message that indicates that an error has been made and, sometimes, the nature or type of error. [From Weik '89]

error ratio

The ratio of the number of bits, elements, characters, or blocks incorrectly received to the total number of bits, elements, characters, or blocks sent during a specified time interval.
Note: For a given communication system, the bit error ratio will be affected by both the data transmission rate and the signal power margin.

error signal

In computer and communications systems, an audio or visual signal that indicates that an error has been made by the system or its operator.
Note: In most systems, the error signal accompanies an error message and is used to draw operator attention to the error message. [From Weik '89]

error-correcting code

A code in which each telegraph or data signal conforms to specific rules of construction so that departures from this construction in the received signal can generally be automatically detected and corrected.
Note 1: If the number of errors is less than or equal to the maximum correctable threshold of the code, all errors will be corrected.
Note 2: Error-correcting… (Read More →)

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