公开(公告)号：US20230077212A1

公开(公告)日：2023-03-09

申请号：US17985366

申请日：2022-11-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Bing Zou ,  Zhiyong Feng ,  Zhiyong Huang

IPC: G02B30/50

Abstract: A display apparatus and method are provided. The display apparatus includes a multi-focus image generation unit and a time sequence control unit. The multi-focus image generation unit is connected to the time sequence control unit. The time sequence control unit is configured to: generate a plurality of time sequence instructions that belong to a first switching period, and send the plurality of time sequence instructions that belong to the first switching period. The multi-focus image generation unit is configured to: receive the plurality of time sequence instructions that belong to the first switching period from the time sequence control unit, and generate a plurality of corresponding 3D image blocks at different distances based on the plurality of time sequence instructions. The plurality of 3D image blocks respectively corresponds to a 3D image and include different depth information for display in the first switching period.

公开(公告)号：US10666363B2

公开(公告)日：2020-05-26

申请号：US16394699

申请日：2019-04-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liangjia Zong ,  Han Zhao ,  Zhiyong Feng ,  Yunfei Yan

IPC: H04B10/58 ,  H04J14/02 ,  H04Q11/00 ,  H04B10/50 ,  H04B10/2507 ,  H04B10/25 ,  H04B10/40 ,  H04B10/60

Abstract: Embodiments of the present application provide a method and an apparatus for transmitting an optical signal and a wavelength selective switch. The transmission method includes: performing diffraction processing on an input optical signal, to obtain signal light and crosstalk light. The signal light is output to a target output port in a plurality of output ports. The diffraction processing includes deflecting, in a second direction, a diffraction direction of a part or all of the crosstalk light, so that the part or all of the crosstalk light is output to an area outside the output ports.

公开(公告)号：US20150010299A1

公开(公告)日：2015-01-08

申请号：US14493540

申请日：2014-09-23

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yijia Wei ,  Juan Ni ,  Zhiyong Feng ,  Ning Deng

IPC: H04B10/079 ,  H04J14/02 ,  H04B10/60

CPC classification number: H04B10/07953 ,  H04B10/0775 ,  H04B2210/075

Abstract: The present invention discloses a method and an apparatus for detecting an optical signal-to-noise ratio, a node device, and a network system. The method includes: receiving a detected optical signal carrying amplified spontaneous emission ASE noise; detecting a first alternating current component and a first direct current component of the detected optical signal; acquiring first modulation information of the detected optical signal; acquiring first correction information corresponding to the first modulation information according to the first modulation information; and determining an optical signal-to-noise ratio OSNR of the detected optical signal according to the first alternating current component, the first direct current component, and the first correction information.

Abstract translation: 本发明公开了一种用于检测光信噪比的方法和装置，节点装置和网络系统。 该方法包括：接收检测到的携带放大的自发发射ASE噪声的光信号; 检测检测到的光信号的第一交流分量和第一直流分量; 获取检测到的光信号的第一调制信息; 根据第一调制信息获取与第一调制信息对应的第一校正信息; 以及根据第一交流分量，第一直流分量和第一校正信息确定检测到的光信号的光信噪比OSNR。

公开(公告)号：US20140314405A1

公开(公告)日：2014-10-23

申请号：US14318356

申请日：2014-06-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Sen Zhang ,  Zhiyong Feng ,  Jianrui Han

IPC: H04B10/564 ,  H04B10/079

CPC classification number: H04B10/564 ,  H04B10/07953 ,  H04B10/07955 ,  H04B10/2931 ,  H04B10/2935 ,  H04B10/294 ,  H04J14/0221 ,  H04J14/0261 ,  H04Q2213/1301 ,  H04Q2213/1308

Abstract: Embodiments of the present invention provide a method and an apparatus for equalizing link performance, and relate to the field of optical wavelength division multiplexing. In the present invention, target input power spectra and target output power spectra in all OMS sections in a network and single wave attenuation at a power adjusting point may be concurrently calculated based on link information of the OMS sections, fast adjustment may also be implemented for a complex network topology, and the adjustment may be implemented in a one-off manner to avoid a problem that iteration adjustment is caused by mutual impact of power adjusting points during serial adjustment in a ring network. In addition, it is not required to connect an optical path in the calculation phase, thereby eliminating reliance on a connected optical path in a process for equalizing link performance.

Abstract translation: 本发明的实施例提供了一种用于均衡链路性能的方法和装置，涉及光波分复用领域。 在本发明中，可以基于OMS部分的链接信息同时计算网络中所有OMS部分中的目标输入功率谱和目标输出功率谱以及功率调整点的单波衰减，也可以对 复杂的网络拓扑，并且可以以一次性方式实现调整，以避免在环形网络中的串行调整期间由功率调整点的相互影响引起迭代调整的问题。 此外，在计算阶段不需要连接光路，从而消除了在连接性能均衡的过程中对所连接的光路的依赖。

公开(公告)号：US10666375B2

公开(公告)日：2020-05-26

申请号：US16285022

申请日：2019-02-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liangjia Zong ,  Han Zhao ,  Zhiyong Feng ,  Yunfei Yan

IPC: H04J14/02 ,  G02B6/293 ,  G02B26/06 ,  H04Q11/00

Abstract: A signal monitoring method and apparatus for a wavelength selective switch (WSS) are provided. The signal monitoring method for a wavelength selective switch WSS includes: encoding a phase of a first optical engine based on an input WDM signal, so that the WDM signal is split into a transmitted signal and a monitored signal after passing through the first optical engine; inputting the monitored signal to a second optical engine disposed at an output-side grating; and controlling the second optical engine to rotate in a wavelength plane of the WDM signal, so that monitored light of a specified wavelength in the monitored signal is output from the second optical engine at a preset angle.

公开(公告)号：US20190253151A1

公开(公告)日：2019-08-15

申请号：US16394699

申请日：2019-04-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Liangjia Zong ,  Han Zhao ,  Zhiyong Feng ,  Yunfei Yan

IPC: H04B10/58 ,  H04J14/02 ,  H04B10/2507

Abstract: Embodiments of the present application provide a method and an apparatus for transmitting an optical signal and a wavelength selective switch. The transmission method includes: performing diffraction processing on an input optical signal, to obtain signal light and crosstalk light. The signal light is output to a target output port in a plurality of output ports. The diffraction processing includes deflecting, in a second direction, a diffraction direction of a part or all of the crosstalk light, so that the part or all of the crosstalk light is output to an area outside the output ports.

公开(公告)号：US20170026132A1

公开(公告)日：2017-01-26

申请号：US15282697

申请日：2016-09-30

Applicant: Huawei Technologies Co., Ltd.

Inventor： Juan Wang ,  Ning Deng ,  Xiaodong Luo ,  Zhiyong Feng

IPC: H04B10/50 ,  H04B10/54 ,  H04B10/079

CPC classification number: H04B10/5057 ,  H04B10/0795 ,  H04B10/541 ,  H04B2210/075

Abstract: A transmitter includes a pilot loading apparatus, an optical modulator, and a pilot locking apparatus. The pilot locking apparatus is configured to determine a pilot operating point that is currently on a response curve and that is of the optical modulator, and a target initial amplitude of an electrical pilot signal. The pilot locking apparatus is further configured to control the pilot loading apparatus to adjust an initial amplitude of the electrical pilot signal to the target initial amplitude.

Abstract translation: 发射机包括导频加载装置，光调制器和导频锁定装置。 导频锁定装置被配置为确定当前在响应曲线上并且是光调制器的导频工作点和电导频信号的目标初始幅度。 导频锁定装置还被配置为控制导频加载装置将电导频信号的初始幅度调整到目标初始振幅。

公开(公告)号：US11368240B2

公开(公告)日：2022-06-21

申请号：US17181760

申请日：2021-02-22

Applicant: Huawei Technologies Co., Ltd.

Inventor： Xu Zhou ,  Xiang Liu ,  Yansi Le ,  Zhiyong Feng

IPC: H04J14/00 ,  H04J14/02 ,  H04B10/69

Abstract: A signal processing method and apparatus are provided. The method includes: receiving an optical signal in a target receive channel, and converting the optical signal into an electrical signal; determining, in the converted electrical signal, an electrical signal associated with a non-overlapping frequency band between the target receive channel and another channel, where the another channel is a channel that overlaps the target receive channel; and determining, based on the electrical signal associated with the non-overlapping frequency band, an electrical signal corresponding to a valid received optical signal that does not include an interfering optical signal in the target receive channel. According to the application, the target transmit channel and the another channel are set to channels that overlap each other, thereby reducing bandwidths occupied by the channels. In the method provided in the embodiments of this disclosure, spectrum utilization can be improved, thereby improving a data transmission rate.

公开(公告)号：US09641917B2

公开(公告)日：2017-05-02

申请号：US15331268

申请日：2016-10-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Yunfei Yan ,  Zhiyong Feng ,  Han Zhao ,  Liangjia Zong

IPC: H04J14/00 ,  H04J14/02 ,  H04B10/24 ,  G02B6/28 ,  G02B6/42 ,  G02B6/26 ,  H04Q11/00 ,  G02B6/293 ,  G02B6/27

CPC classification number: H04Q11/0062 ,  G02B6/266 ,  G02B6/2713 ,  G02B6/2931 ,  H04Q11/0005 ,  H04Q2011/0016 ,  H04Q2011/0026 ,  H04Q2011/0037 ,  H04Q2011/0052 ,  H04Q2011/009

Abstract: Embodiments of the present invention provide an optical communications apparatus, where the apparatus includes: an input system, a first optical switch array, and an output system, where the input system includes N input ports that are one-dimensionally arranged on a first plane, a first beam expander, a demultiplexer, and a first optical path changer; the first optical switch array includes N×K first optical switch units that are two-dimensionally arranged on a second plane, and the first optical switch units can rotate in a first axial line direction and a second axial line direction; and the output system includes a second optical path changer, a second beam expander, a second optical switch array, and M output ports that are two-dimensionally arranged.

公开(公告)号：US20230224062A1

公开(公告)日：2023-07-13

申请号：US18175055

申请日：2023-02-27

Applicant: Huawei Technologies Co., Ltd.

Inventor： Jun Luo ,  Zhiyong Feng ,  Jian Zhong

IPC: H04J14/02 ,  H04B10/079

CPC classification number: H04J14/0212 ,  H04B10/07955 ,  H04J14/0227

Abstract: This application discloses an optical signal control method and apparatus, and belongs to the optical communication field. The apparatus includes: a light source, configured to output a first optical signal; an optical switch module, configured to receive the first optical signal and an external second optical signal, and output a third optical signal; and a detection module, configured to detect whether a power change of the second optical signal on at least one wavelength channel is greater than a preset power change threshold, if so, the optical switch module adjusts on/off states of at least one wavelength channel of the received first optical signal and the at least one wavelength channel of the received second optical signal, so that an adjusted first optical signal and an adjusted second optical signal are combined to obtain the third optical signal.