BIT STUFFING

Domain	Definition
Computing	Bit stuffing A protocol which guarantees the receiver of synchronous data can recover the sender's clock. When the data stream sent contains a large number of adjacent bits which cause no transition of the signal, the receiver cannot adjust its clock to maintain proper synchronised reception. To eliminate the possibility of such a pathological case, when a preset number of transitionless bits have been transmitted, a bit which does cause a transition is "stuffed" (transmitted) by the sender. The receiver follows the same protocol and removes the stuffed bit after the specified number of transitionless bits, but can use the stuffed bit to recover the sender's clock. The advantage of bit stuffing is that only a bit (not a byte) is inserted in the data stream, and that only when the content of the data stream fails to provide a timing signal to the receiver. Thus very nearly 100% of the bits transported are useful data. In contrast, asynchronous transmission of data "throws away" a start bit and one or more stop bits for each data byte sent. (1996-04-23). Source: The Free On-line Dictionary of Computing.
Source: compiled by the editor from various references; see credits.

Specialty Definition: Bit stuffing

In telecommunication, bit stuffing is the insertion of noninformation bits into data.

Note 1: Stuffed bits should not be confused with overhead bits.

Note 2: In data transmission, bit stuffing is used for various purposes, such as for synchronizing bit streams that do not necessarily have the same or rationally related bit rates, or to fill buffers or frames. The location of the stuffing bits is communicated to the receiving end of the data link, where these extra bits are removed to return the bit streams to their original bit rates or form. Bit stuffing may be used to synchronize several channels before multiplexing or to rate-match two single channels to each other. Synonym positive justification.

Source: from Federal Standard 1037C and from MIL-STD-188

Frequency of Internet Keywords: BIT STUFFING

Anagrams: BIT STUFFING

Scrabble® Enable2K-Verified Anagrams
	Words within the letters "b-f-f-g-i-i-n-s-t-t-u"
	-3 letters: bittings, fittings, stiffing, stuffing.
	-4 letters: biffing, biffins, bitting, buffing, busting, butting, fisting, fitting, intuits, sifting, sitting, suiting, tiffing, tiffins, tubings, tufting.
	-5 letters: biffin, binits, biting, busing, fifing, fusing, gittin, intuit, siting, tiffin, tubing, tubist, unfits.
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