Patent ID: 7741880

Claim:
A receiver comprising: a first comparator configured to receive and compare amplitude modulated differential input signals and to generate a first indication signal and a second indication signal, which respectively have different voltage levels, as a result of the comparison; an amplifier configured to receive and amplify the amplitude modulated differential input signals, to output differential output signals corresponding to a voltage difference between the received signals to a pair of output terminals, and to supply a current to one of the output terminals in response to the first and second indication signals; a second comparator configured to compare voltages of the respective output terminals of the amplifier and to generate a third indication signal as a result of the comparison; and a logic circuit configured to receive the first indication signal output from the first comparator and the third indication signal output from the second comparator, to perform, a logic operation on the first and third indication signals, and to output a logic operation result.