Patent ID: 8736321

Claim:
A transmission/reception device comprising: a transmission circuit configured to send differential signals to another transmission/reception device; and a reception circuit configured to receive the differential signals from the another transmission/reception device, wherein the transmission circuit includes a first delay application unit configured to apply a delay to at least one of a positive signal and a negative signal of the differential signals sent to the another transmission/reception device, a first skew detection unit configured to detect a differential signal skew between the positive signal and the negative signal, to at least one of which the delay is applied by the first delay application unit, and a first control unit configured to control the first delay application unit in a manner as to reduce the differential signal skew detected by the first skew detection unit, and the reception circuit includes a second delay application unit configured to apply a delay to at least one of a positive signal and a negative signal of differential signals sent from the another transmission/reception device, a second skew detection unit configured to detect a differential signal skew between the positive signal and the negative signal received from the transmission circuit, to at least one of which the delay is applied by the second delay application unit, and a second control unit configured to control the second delay application unit in a manner as to reduce the differential signal skew detected by the second skew detection unit.