Patent ID: 7505532

Claim:
A receiver circuit for use in a signal transmission system which transmits data via complementary buses and detects said data by eliminating an intersymbol interference component introduced by preceding data, and in which switching from a first transmission line to a second transmission line connected to the same receiver circuit takes place during signal transmission, comprising: a differential amplifier having first and second gate-receiving complementary inputs; an amplifier precharge circuit, provided at one of said first and second inputs of said differential amplifier, for precharging said differential amplifier; and first, second, and third capacitors provided at said first and second inputs of said differential amplifier, wherein said first and second inputs of said differential amplifier are coupled to said complementary buses via said first and second capacitors, with said first capacitor coupled to one of said complementary buses and said second capacitor selectively coupled by a first switch element to one or the other of said complementary buses, and said third capacitor is connected by a second switch element to change capacitance values at said first and second inputs of said differential amplifier for periods of n bits each before and after the switching from said first transmission line to said second transmission line, where n is a natural number, thereby reducing noise due to a transmission line voltage level change caused by the switching from said first transmission line to said second transmission line.