Patent ID: 7447260
Filing Date: 2008-11-04
Classification: H04B,H04L

Abstract:
1. An equalizer, comprising: a waveform detection circuit observing a first characteristic parameter of a first input signal; an equalization transmission circuit outputting an equalization transmission signal obtained by changing a second input signal based on a predetermined equalization parameter; an equalization parameter setting circuit setting the equalization parameter based on the first characteristic parameter; an initialization control circuit sweeping the equalization parameter within a predetermined range; and a memory storing a relationship between the swept equalization parameter and the equalization parameter, said relationship comprising a counter value at which an eye opening ratio of the first input signal reaches a maximum, wherein said waveform detection circuit detects a waveform of said first input signal; and a transmission line which supplies the first input signal and a transmission line to which the equalization transmission signal is output have mutually similar transmission properties.