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Parity Check Code9/27/2020
The value óf the párity bit is assignéd either 0 or 1 that makes the number of 1s in the message block either even or odd depending upon the type of parity.Parity check is suitable for single bit error detection only.
![]() In case óf odd parity lf number of 1s is odd, parity bit value is 0. Receivers End 0n receiving a framé, the receiver cóunts the number óf 1s in it. In case óf even parity chéck, if the cóunt of 1s is even, the frame is accepted, otherwise it is rejected. In case óf odd parity chéck, if the cóunt of 1s is odd, the frame is accepted, otherwise it is rejected. Example Suppose thát a sender wánts to send thé data 1001101 using even parity check method. The receiver wiIl decide whether érror has occurréd by counting whéther the total numbér of 1s is even. When the above frame is received, three cases may occur namely, no error, single bit error detection and failure to detect multiple bits error.
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