Parity Generator and Parity Checker Explained

In this video, the design and working of the Parity Generator and Parity Checker circuit are explained.

The following topics are covered in the video:
0:00 Introduction
1:43 Odd and Even Parity Generator (Working and Design)
5:59 Odd and Even Parity Checker (Working and Design)

For more information, check this video on Parity:
   • Error Detecting Code : Parity Explain...  

What is Parity?
Parity Bit is a simple form of error detecting code, where the additional bit is added along with the data bits.

There are two types of Parity:
1) Odd Parity
2) Even Parity

Odd Parity:
In odd parity, the parity bit is set in such a way that the total number of 1s in the code, including the parity bit is Odd.

Even Parity:
In Even parity, the parity bit is set in such a way that the total number of 1s in the code, including the parity bit is Even.

For error detection, the parity bit is appended with data bits, and the code is sent to the receiver.
At the receiver, the parity checker circuit checks the parity of the received code and detects the error.

Limitations of Parity Bit:

The Parity bit can detect only odd numbers of errors. If there are even a number of errors in the received code, it will remain undetected.
Moreover, the Parity bit can just detect the error in the code (if the number of errors in the received code is odd) but it can't correct the error.

In this video, the design of the 3-bit Parity Generator and 4-bit parity checker is explained using a truth table.

This video will be helpful to all the students of science and engineering in understanding the design and working of the Parity Generator and Parity Checker circuits.

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