Patent ID: 6898724

Claim:
A data transmission system, comprising: a plurality of transmission lines; a data output device having a plurality of transmitter circuits coupled to first ends of the transmission lines, for transmitting at least a data signal and a pair of complementary signals having a non-inverting signal and an inverting signal to the transmission lines, the data signal and the pair of complementary signals being edge-aligned; and a data input device, coupled to second ends of the transmission lines and comprising: a first comparator receiving the data signal, the non-inverting signal and the inverting signal, for comparing twice the data signal with the sum of the non-inverting signal and the inverting signal and outputting an output signal according to a comparison result; a second comparator for comparing the non-inverting signal and the inverting signal and generating a non-inverting sampling control signal; a third comparator for comparing the inverting signal and the non-inverting signal and generating an inverting sampling control signal complementary to the non-inverting sampling control signal; a first delay element for generating a non-inverting latch clock signal by delaying the non-inverting sampling control signal by a first delay time; a second delay element for generating an inverting latch clock signal by delaying the inverting sampling control signal by a second delay time; a first data latch circuit for generating first latched data by latching the output signal based on the non-inverting latch clock signal; and a second data latch circuit for generating second latched data by latching the output signal based on the inverting latch clock signal.