公开(公告)号：US20230033286A1

公开(公告)日：2023-02-02

申请号：US17962992

申请日：2022-10-10

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byungsuk Woo ,  Sucheol Lee ,  Changkyu Seol

IPC: G11C7/10 ,  G11C7/14 ,  G11C7/04

Abstract: A receiver that receives a multi-level signal includes a compensation circuit, a sampling circuit, an output circuit and a mode selector. The compensation circuit generates a plurality of data signals and a plurality of reference voltages by compensating intersymbol interference on an input data signal. The sampling circuit generates a plurality of sample signals based on the plurality of data signals and the plurality of reference voltages. The output circuit generates output data based on the plurality of sample signals, and selects a current value of the output data based on a previous value of the output data. The mode selector generates a mode selection signal used to select one of first and second operation modes based on an operating environment. The compensation circuit and the sampling circuit are entirely enabled in the first operation mode, and the compensation circuit and the sampling circuit are partially enabled in the second operation mode.

公开(公告)号：US11495271B2

公开(公告)日：2022-11-08

申请号：US17463635

申请日：2021-09-01

Applicant: Samsung Electronics Co., Ltd.

Inventor： Byungsuk Woo ,  Sucheol Lee ,  Changkyu Seol

IPC: G11C7/10 ,  G11C7/14 ,  G11C7/04

Abstract: A receiver that receives a multi-level signal includes a compensation circuit, a sampling circuit, an output circuit and a mode selector. The compensation circuit generates a plurality of data signals and a plurality of reference voltages by compensating intersymbol interference on an input data signal. The sampling circuit generates a plurality of sample signals based on the plurality of data signals and the plurality of reference voltages. The output circuit generates output data based on the plurality of sample signals, and selects a current value of the output data based on a previous value of the output data. The mode selector generates a mode selection signal used to select one of first and second operation modes based on an operating environment. The compensation circuit and the sampling circuit are entirely enabled in the first operation mode, and the compensation circuit and the sampling circuit are partially enabled in the second operation mode.

公开(公告)号：US20220173942A1

公开(公告)日：2022-06-02

申请号：US17393811

申请日：2021-08-04

Applicant: Samsung Electronics Co., Ltd.

Inventor： Sucheol Lee ,  Changkyu Seol ,  Byungsuk Woo

IPC: H04L25/03

Abstract: A receiver included in a memory device includes a flag generator circuit, an equalizer circuit and an equalization controller circuit. The flag generator circuit is configured to, during a normal operation mode, generates a flag signal without an external command. The equalizer circuit is configured to, during the normal operation mode, receive an input data signal through a channel, generate an equalized signal by equalizing the input data signal based on an equalization coefficient, and generate a data sample signal including a plurality of data bits based on the equalized signal. The equalization controller circuit is configured to, during the normal operation mode, determine an amount of change in the equalization coefficient based on the flag signal, the equalized signal and the data sample signal, and perform a training operation in which the equalization coefficient is updated in real time based on the amount of change in the equalization coefficient.