Patent ID: 7920115

Claim:
An apparatus for data transmission comprising: a data modulator modulating low bits excluding the most significant bit (MSB) of original data in response to the original MSB and outputting the modulated low bits along with the original MSB as the modulated data, wherein the data modulator includes a transmission line outputting the original MSB; and a data restorer receiving the modulated low bits and the original MSB output from the data modulator and restoring the modulated low bits from the data modulator to the original low bits in response to the original MSB from the data modulator and outputting the restored low bits along with the original MSB as the restored data, wherein if the original MSB is a first logic state, the data modulator outputs the original low bits along with the original MSB as the modulated data, and the data restorer outputs the original low bits along with the original MSB from the data modulator as the restored data, and wherein if the original MSB is a second logic state, the data modulator inverts the original low bits and then output the inverted low bits along with the original MSB as the modulated data, and the data restorer restores the inverted low bits from the data modulator into the original low bits and then outputs the restored low bits along with the original MSB as the restored data.