Parity checking Single Bit Parity: Two Dimensional Bit Parity: Detect single bit errors Detect and correct single bit errors d data bits -parity d 1,j+1 bit 2,1 d 2j+1 011001010 d olumn 1.1 d 101011 11011 1111oO 王(11)Pa error 011101 01110n 001010 0101o no errors parIty error correctab/e single bit error 5: DataLink Layer 5a-85: DataLink Layer 5a-8 Parity Checking Single Bit Parity: Detect single bit errors Two Dimensional Bit Parity: Detect and correct single bit errors 0 0