公开(公告)号：US12159034B2

公开(公告)日：2024-12-03

申请号：US17746652

申请日：2022-05-17

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongyao Li ,  Guoyu Wang ,  Jun Yu ,  You Li ,  Jiawu Liu

IPC: G06F3/06 ,  G11C5/14 ,  G11C7/10 ,  G11C7/22 ,  G11C11/4076 ,  G11C29/02

Abstract: This application provides a method for detecting margins of a data signal. A receive end of a data signal may adjust a voltage of a reference power source; adjust, based on a plurality of reference moments included in a reference moment set, a moment of an edge of a data strobe signal transmitted by a transmit end of the data signal; and during the adjustment, for each reference voltage and each reference moment, determine whether a bit error exists in data obtained by decoding the data signal when the voltage of the reference power source is the reference voltage and the moment of the edge of the data strobe signal is the reference moment, to obtain a timing margin of the data signal at each reference voltage and a voltage margin of the data signal at each reference moment.

公开(公告)号：US20230124534A1

公开(公告)日：2023-04-20

申请号：US18083694

申请日：2022-12-19

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Yongchen Jin ,  Fei Luo ,  Guoyu Wang ,  Ming Chen ,  Yinzhong Tang

IPC: G11B33/04

Abstract: A storage device includes a hard disk backplane, a first cascading board, and a hard disk array. The hard disk array includes a plurality of hard disks, and is located on a first side of the hard disk backplane. The first cascading board is a field-replaceable unit FRU, and is located on a second side of the hard disk backplane.

公开(公告)号：US20210065757A1

公开(公告)日：2021-03-04

申请号：US17097680

申请日：2020-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongyao Li ,  Jun Yu ,  Guoyu Wang ,  Jiankang Li ,  You Li ,  Ruihui Hong

IPC: G11C7/22 ,  G11C7/10 ,  G11C11/4076

Abstract: A controller for data strobe signal (DQS) position adjustment includes, when the controller obtains margin effective widths of all data signals in a transmission bus, it determines a left boundary and a right boundary based on the margin effective widths, where the left boundary is a largest value in minimum values of the margin effective widths of all the DQs, and the right boundary is a smallest value in maximum values of the corresponding margin effective widths when all the DQs are aligned with the left boundary. The controller calculates a first central position based on the left boundary and the right boundary, where the first central position is a center of a smallest margin effective width obtained after all the DQs are aligned during read data training, and adjusts a delay line (DL) of the DQS to the first central position.

公开(公告)号：US11430494B2

公开(公告)日：2022-08-30

申请号：US17097680

申请日：2020-11-13

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yongyao Li ,  Jun Yu ,  Guoyu Wang ,  Jiankang Li ,  You Li ,  Ruihui Hong

IPC: G11C7/22 ,  G11C7/10 ,  G11C11/4076

Abstract: A controller for data strobe signal (DQS) position adjustment includes, when the controller obtains margin effective widths of all data signals in a transmission bus, it determines a left boundary and a right boundary based on the margin effective widths, where the left boundary is a largest value in minimum values of the margin effective widths of all the DQs, and the right boundary is a smallest value in maximum values of the corresponding margin effective widths when all the DQs are aligned with the left boundary. The controller calculates a first central position based on the left boundary and the right boundary, where the first central position is a center of a smallest margin effective width obtained after all the DQs are aligned during read data training, and adjusts a delay line (DL) of the DQS to the first central position.