Patent Number: 7,535,956

Title: Adaptive equalizer circuit

Abstract: An adaptive equalizer circuit equipped by a control unit for controlling an equalizer circuit, comprising a detection unit for detecting an identity of a preset data pattern with a data pattern as a result of data judgment for an output of the equalizer circuit, a monitor unit for sequentially monitoring an input to a gain amplifier for each of a plurality of filters constituting the equalizer circuit and an output thereof every time the identity detection unit detects an identity, and a unit for making the control unit operate an adaptive equalization control by providing the control unit with the monitoring result, thereby making it possible to track a great change in a characteristic of transmission line without using a matrix responding to the characteristic of the transmission line or a convolution operation by using the matrix.

Inventors: Yamaguchi; Hisakatsu (Kawasaki, JP)

Assignee: Fujitsu Limited

International Classification: H03K 5/159 (20060101)

Expiration Date: 2021-05-19 0:00:00