Insertion of non-information bits into transmitted data, usually for communications protocol reasons
This article includes a list of references, related reading, or external links, but its sources remain unclear because it lacks inline citations. Please help improve this article by introducing more precise citations.(March 2013) (Learn how and when to remove this message)
In data transmission and telecommunication, bit stuffing (also known—uncommonly—as positive justification) is the insertion of non-information bits into data. Stuffed bits should not be confused with overhead bits.
Bit stuffing is used for various purposes, such as for bringing bit streams that do not necessarily have the same or rationally related bit rates up to a common rate, 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.
Another use of bit stuffing is for run length limited coding: to limit the number of consecutive bits of the same value in the data to be transmitted. A bit of the opposite value is inserted after the maximum allowed number of consecutive bits. Since this is a general rule the receiver doesn't need extra information about the location of the stuffing bits in order to do the de-stuffing. This is done to create additional signal transitions to ensure reliable reception or to escape special reserved code words such as frame sync sequences when the data happens to contain them.
Bit stuffing in CAN after five equal bits.
Bit stuffing does not ensure that the payload is intact (i.e. not corrupted by transmission errors); it is merely a way of attempting to ensure that the transmission starts and ends at the correct places. Error detection and correction techniques are used to check the frame for corruption after its delivery and, if necessary, the frame will be re-sent.
telecommunication, bitstuffing (also known—uncommonly—as positive justification) is the insertion of non-information bits into data. Stuffed bits should not...
to a string of bits Computing the necessary symbol size and mode message, which determines the Reed–Solomon codeword size Bit-stuffing the message into...
Consistent Overhead Byte Stuffing (COBS) is an algorithm for encoding data bytes that results in efficient, reliable, unambiguous packet framing regardless...
Two of them work at the bit level, and the other three at the message level. They are: - (1) Bit Monitoring, - (2) BitStuffing, - (3) Frame Check, - (4)...
characters. Similarly, bitstuffing replaces these start and end marks with flags consisting of a special bit pattern (e.g. a 0, six 1 bits and a 0). Occurrences...
never needs bit-stuffing, even when combined with the final 1 bit in the sync field. However, trailing 1 bits in the PID may require bit-stuffing within the...
must support a data communication bit rate of 20 gigabits (Gbit/s). Versions of the standard optionally support bit rates of 40 Gbit/s (USB4 version 1...
with T-carrier, which is used to perform loopback testing; may perform bitstuffing; may also provide a framing and formatting pattern compatible with the...
zeros are ever sent: robbed-bit signaling and bitstuffing. T-carrier uses robbed-bit signaling: the least-significant bit of the byte is simply forced...
loop. The worst possible stuffing ratio would be 1 frame in 2 as this gives a theoretical 0.5 bit of jitter so the stuffing ratio is carefully chosen...
website of the company Bitstuffing, the insertion of noninformation bits into computerized data To compress files using StuffIt Stuffing, edible mixture, used...
networked communication from the physical implementation of transmitting bits across a communications medium to the highest-level representation of data...
form of bitstuffing, which set the least significant bit of each 8-bit byte transmitted to a 1. (This bit was already unavailable due to robbed-bit signaling...
bit-stuffing to avoid unintentional stop-flags which may otherwise occur in the data. As such, the raw bits must first be decoded, and the stuffing bits...
which was a packet oriented protocol that incorporated addressing, bit-stuffing, and packet checksumming in hardware. Coupled together with the RS422...
Tim. "Why the BBC is stuffing free Micro:bit computers into schoolkids' satchels". The Register. Retrieved 8 July 2015. "micro:bit Circuit Schematics"...
frame (and therefore cause frame misalignment), a technique known as Bitstuffing is used by both the transmitter and the receiver. Address field – In...
For example, HDLC uses bitstuffing or "octet stuffing", while other systems use ASCII armor or Consistent Overhead Byte Stuffing (COBS). In some communication...
sequence DLE DLE). This technique became known as character stuffing, by analogy with bitstuffing. The link control protocol is similar to STR. The designers...
controller unit shall be SDLC-compatible command-response protocol, support 0-bitstuffing, and operate at a data rate of 614.4 Kilobits per second. IBM Communication...
Global Information
