Signal transfer device for transferring signal by balanced transmission

A signal transfer device comprising:

• a signal transmitter that outputs differential output pair of signals to first and second transfer paths based on differential input pair of signals, the signal transmitter including a first amplitude adjuster that adjusts an amplitude of at least one of a pair of modified differential signals based on a predetermined amplitude ratio to generate the differential output pair of signals transferred to the first and second transfer paths;
• wherein the pair of modified differential signals are based on the differential input pair of signals and adjustment signals;
• and
• a signal receiver including a detector that detects the adjustment signals in the differential output pair of signals received via the first and second transfer paths and a second amplitude adjuster that adjusts an amplitude of at least one of a subsequent pair of the differential output pair of signals outputted by the signal transmitter based on the adjustment signals detected by the detector.