公开(公告)号：US10996495B2

公开(公告)日：2021-05-04

申请号：US16146259

申请日：2018-09-28

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wenrui Zhu ,  David Zhang ,  Lei Zhao

IPC: G02F1/01 ,  G02F1/21 ,  H03K19/0948

Abstract: A high-rate high-swing drive circuit applied to a silicon photonic modulator is disclosed. The drive circuit is connected to a drive pre-stage circuit and a modulator load. The drive circuit includes at least one output circuit, and the output circuit includes: a first inverter, a first voltage bias module, a second inverter, a second voltage bias module, and an inductor. The drive circuit formed by using such a circuit connection increases an output swing of a drive while ensuring a high rate.

公开(公告)号：US20240289976A1

公开(公告)日：2024-08-29

申请号：US18570956

申请日：2022-04-20

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lei Zhao ,  Jialong Zheng ,  Qiang Zhang

IPC: G06T7/70 ,  G06T7/50 ,  G06V40/16 ,  G06V40/60 ,  G07C9/25

CPC classification number: G06T7/70 ,  G06T7/50 ,  G06V40/161 ,  G06V40/172 ,  G06V40/67 ,  G07C9/257 ,  G06T2207/10028 ,  G06T2207/30201

Abstract: In accordance with an embodiment, a method includes: obtaining, by a first electronic device, a first face image acquired by the first camera at a first moment, wherein a face in the first face image is at a first position of the first face image; and displaying, by a second electronic device, a second face image, where the second face image is obtained by converting the first face image based on the image mapping relationship, and a position of the face in the second face image is the same as a position of the face in an image acquired by the second camera at the first moment.

公开(公告)号：US20240154699A1

公开(公告)日：2024-05-09

申请号：US18416436

申请日：2024-01-18

Applicant: Huawei Technologies Co., Ltd.

Inventor： Changzheng Su ,  Lei Zhao ,  Yigang Zhou

IPC: H04B10/2507 ,  H04B10/40

CPC classification number: H04B10/2507 ,  H04B10/40 ,  H04B2210/006

Abstract: An optical/electrical module includes an analog equalizer and an optical/electrical conversion unit. The analog equalizer is connected to the optical/electrical conversion unit. The analog equalizer is configured to: perform first analog signal equalization processing on a first electrical signal to obtain a second electrical signal, and send the second electrical signal to the optical/electrical conversion unit, or is configured to: receive a third electrical signal from the optical/electrical conversion unit, and perform second analog signal equalization processing on the third electrical signal to obtain a fourth electrical signal. The optical/electrical conversion unit is configured to: receive the second electrical signal from the analog equalizer and convert the second electrical signal into a first optical signal. According to embodiments of this application, equalization processing may be performed on an electrical signal in an analog domain.

公开(公告)号：US10594538B2

公开(公告)日：2020-03-17

申请号：US16045725

申请日：2018-07-25

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Hao Huang ,  Lei Zhao ,  Bo Duan

IPC: H04L27/34 ,  H04L27/36 ,  H04B10/54 ,  H04B10/60 ,  H04L27/38 ,  H04L27/20 ,  H04L27/22 ,  G06F11/10

Abstract: A transmitter, a receiver, and a signal processing method are provided. The transmitter includes a constellation mapper, a signal conversion module, a digital signal processor, and a digital-to-analog converter. The constellation mapper is configured to determine a mapping relationship between a bit stream and a constellation point in a polar coordinate system, and generate a constellation symbol data flow according to the mapping relationship. The signal conversion module is configured to convert the constellation symbol data flow into an amplitude signal and a phase signal, where the amplitude signal is a 2-level analog signal, and the phase signal is an 8-level digital signal. The digital signal processor is configured to perform digital signal processing on the phase signal, to generate a multi-level digital signal. The digital-to-analog converter is configured to convert the multi-level digital signal into a multi-level analog signal.

公开(公告)号：US20220121936A1

公开(公告)日：2022-04-21

申请号：US17434563

申请日：2019-02-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Zhicheng Sui ,  Li Zhou ,  Lei Zhao ,  Mohan Liu ,  Qinghua Yu ,  Hongrui Jiang

IPC: G06N3/08 ,  G06N3/04

Abstract: A neural network model processing method includes obtaining a first low-bit neural network model through training, where the model includes a first operation layer and a second operation layer. Each operation layer includes at least one operation. Values/a value of a parameter and/or data used for the operation are/is represented by using N bits, and N is a positive integer less than 8. The neural network model processing method further includes compressing the model to obtain a second low-bit neural network model, where the compressed model includes a third operation layer. The third operation layer is equivalent to the first operation layer and the second operation layer, and an operation layer other than the third operation layer in the at least one operation layer is the same as an operation layer other than the first operation layer and the second operation layer in the at least two operation layers.