US 11,699,469 B2
Operating method of host device and memory device and memory system
Young San Kang, Yongin-si (KR); Jeong Hur, Hwaseong-si (KR); Walter Jun, Seoul (KR); Kwang Won Park, Suwon-si (KR); and Kyoung Back Lee, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Aug. 12, 2021, as Appl. No. 17/400,368.
Claims priority of application No. 10-2020-0157332 (KR), filed on Nov. 23, 2020.
Prior Publication US 2022/0165314 A1, May 26, 2022
Int. Cl. G11C 7/00 (2006.01); G11C 7/10 (2006.01)
CPC G11C 7/1096 (2013.01) [G11C 7/1045 (2013.01); G11C 7/1057 (2013.01); G11C 7/1069 (2013.01); G11C 7/1084 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A method of operating a host device, the method comprising:
transmitting, by the host device, a request command for performing an eye-opening monitor (EOM) operation to a memory device;
transmitting, by the host device, at least one parameter for performing the EOM operation to the memory device;
transmitting, by the host device, pattern data for performing the EOM operation to the memory device; and
receiving, by the host device, a first response signal including a result of the EOM operation performed based on the at least one parameter and the pattern data from the memory device,
wherein the EOM operation is performed based on a comparison between a main path signal, which corresponds to a signal received from the host device and restored at the memory device, and an EOM path signal, which corresponds to a signal received from the host device and restored using an offset value at the memory device, and
wherein the at least one parameter for performing the EOM operation includes a parameter that defines the offset value.