parity check bit - определение. Что такое parity check bit
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Что (кто) такое parity check bit - определение

BIT ADDED TO A BINARY STRING TO ENSURE THAT THE SUM OF THE BIT VALUES IS EVEN OR ODD; USED AS AN ERROR DETECTING CODE
Check bit; Parity Bit; Parity check; Parity (telecommunication); Even parity; Odd parity; Odd Parity; Even Parity; Parity checking; Check bits; Parity block; Parity error; Parity Error; Parity checking bit; Parity bits; Parity code; Bit interface parity
Найдено результатов: 1089
parity error         
<storage, communications> An error discovered by the inclusion of a parity bit. (1996-03-01)
Parity bit         
A parity bit, or check bit, is a bit added to a string of binary code. Parity bits are a simple form of error detecting code.
parity bit         
<storage, communications> An extra bit added to a byte or word to reveal errors. See parity. (1996-03-01)
Parity (physics)         
FLIP IN THE SIGN OF ONE SPATIAL COORDINATE, IN CLASSICAL AND QUANTUM PHYSICS
P-symmetry; Parity laws; Intristic parity; Parity transformation; Parity violation; Conservation of parity; Parity conservation; Conservation of Parity; P symmetry; Parity (quantum mechanics); Parity symmetry; Space reflection symmetry; P violation; Gerade; Parity Violation; P-parity; Parity Reversal Symmetry; Parity Conservation; Parity inversion; Space inversion symmetry; Parity operator; Parity violating
In quantum mechanics, a parity transformation (also called parity inversion) is the flip in the sign of one spatial coordinate. In three dimensions, it can also refer to the simultaneous flip in the sign of all three spatial coordinates (a point reflection):
Interest rate parity         
  • A visual representation of covered interest rate parity holding in the foreign exchange market, such that the returns from investing domestically are equal to the returns from investing abroad.
  • A visual representation of uncovered interest rate parity holding in the foreign exchange market, such that the returns from investing domestically are equal to the returns from investing abroad.
EQUILIBRIUM STATE FOR INTEREST RATES IN TWO COUNTRIES/CURRENCIES
Interest parity condition; Interest Rate Parity; Uncovered interest parity; Covered interest parity; Uncovered interest rate parity
Interest rate parity is a no-arbitrage condition representing an equilibrium state under which investors interest rates available on bank deposits in two countries. The fact that this condition does not always hold allows for potential opportunities to earn riskless profits from covered interest arbitrage.
Low-density parity-check code         
  • Fig. 1. LDPC encoder
LINEAR ERROR CORRECTING CODE
Low-density parity-check codes; Low Density Parity Check Codes; Ldpc code; Ldpc codes; Gallager code; LDPC; LDPC code; Low density parity check code; Parity check code; Gallager codes; Ldpc; LDPC codes
In information theory, a low-density parity-check (LDPC) code is a linear error correcting code, a method of transmitting a message over a noisy transmission channel.David J.
C parity         
UNITARY OPERATION THAT TRANSFORMS A PARTICLE IN ITS ANTIPARTICLE
C-parity; C Parity; C-Parity; Charge parity
In physics, the C parity or charge parity is a multiplicative quantum number of some particles that describes their behavior under the symmetry operation of charge conjugation.
Put–call parity         
IN FINANCIAL MATHEMATICS, DEFINES A RELATIONSHIP BETWEEN THE PRICE OF A EUROPEAN CALL OPTION AND A EUROPEAN PUT OPTION
Put call parity; Put-call parity; Put-call parity theorem; Equivalence of calls and puts; Put-call theorem; Call-put parity; Call–put parity; Call put parity
In financial mathematics, put–call parity defines a relationship between the price of a European call option and European put option, both with the identical strike price and expiry, namely that a portfolio of a long call option and a short put option is equivalent to (and hence has the same value as) a single forward contract at this strike price and expiry. This is because if the price at expiry is above the strike price, the call will be exercised, while if it is below, the put will be exercised, and thus in either case one unit of the asset will be purchased for the strike price, exactly as in a forward contract.
Bit (horse)         
  • Horse skull showing the large gap between the front teeth and the back teeth. The bit sits in this gap, and extends beyond from side to side.
TYPE OF HORSE TACK
Horse bit; Horse bits; Champing at the bit; Chomping at the bit; Horse's bit; Horsebit
The bit is an item of a horse's tack. It usually refers to the assembly of components that contacts and controls the horse's mouth, and includes the shanks, rings, cheekpads and mullen, all described here below, but it also sometimes simply refers to the mullen, the piece that fits inside the horse's mouth.
Bit-length         
NUMBER OF BINARY DIGITS (BITS), NECESSARY TO REPRESENT AN INTEGER IN THE BINARY NUMBER SYSTEM
Bit length; Bit width
Bit-length or bit width is the number of binary digits, called bits, necessary to represent an integer as a binary number. Formally, the bit-length of a natural number n>0 is a function, bitLength(n), of the binary logarithm of n:

Википедия

Parity bit

A parity bit, or check bit, is a bit added to a string of binary code. Parity bits are a simple form of error detecting code. Parity bits are generally applied to the smallest units of a communication protocol, typically 8-bit octets (bytes), although they can also be applied separately to an entire message string of bits.

The parity bit ensures that the total number of 1-bits in the string is even or odd. Accordingly, there are two variants of parity bits: even parity bit and odd parity bit. In the case of even parity, for a given set of bits, the bits whose value is 1 are counted. If that count is odd, the parity bit value is set to 1, making the total count of occurrences of 1s in the whole set (including the parity bit) an even number. If the count of 1s in a given set of bits is already even, the parity bit's value is 0. In the case of odd parity, the coding is reversed. For a given set of bits, if the count of bits with a value of 1 is even, the parity bit value is set to 1 making the total count of 1s in the whole set (including the parity bit) an odd number. If the count of bits with a value of 1 is odd, the count is already odd so the parity bit's value is 0. Even parity is a special case of a cyclic redundancy check (CRC), where the 1-bit CRC is generated by the polynomial x+1.