Patent ID: 7965765
Filing Date: 2011-06-21
Classification: H04L

Abstract:
1. The adjustment method of waveform equalization coefficient in transmission equipment comprising a driver circuit transmitting a signal and a receiver circuit receiving the signal transmitted from the driver circuit, wherein the signal transmitted from the driver circuit is received by the receiver circuit, measurement of one of jitter and amplitude is performed only in a case of an arbitrary signal sequence in a waveform equalization coefficient adjustment circuit in the receiver circuit and a waveform equalization coefficient of a waveform equalization circuit in the driver circuit is adjusted according to a result of the measurement, wherein the arbitrary signal sequence is data other than signal sequences of 010 and 101, and wherein the measurement of the one of the jitter and the amplitude is performed in the waveform equalization coefficient adjustment circuit using the data other than the signal sequences of 010 and 101 and the waveform equalization coefficient of the waveform equalization circuit is adjusted.