parity check

American  

noun

Computers.

1. a method for detecting errors in data communications or within a computer system by counting the number of ones or zeros per byte or per word, including a special check bit paritybit, to see if the value is even or odd.

---

parity check British  

noun

1. a check made of computer data to ensure that the total number of bits of value 1 (or 0) in each unit of information remains odd or even after transfer between a peripheral device and the memory or vice versa

---

Etymology

Origin of parity check

First recorded in 1945–50

Example Sentences

Huawei has developed a technique called "polar codes", which it says will give 5G devices longer battery life than an alternative favoured by many Western firms called "low density parity check".

From BBC

The qubits are placed on vertices and each coloured face corresponds to both an X and a Z parity check.

From Nature

If a tape is not at the end of record, then the tape is either at the end of the reel, or a parity check has occurred.

From Project Gutenberg

The qubits are placed on vertices and each coloured face corresponds to both an X and a Z parity check.

From Nature

This implies that an X and a Z parity check is associated with each vertex, leading to a transversal H gate.

From Nature