公开(公告)号：US12175713B2

公开(公告)日：2024-12-24

申请号：US17576575

申请日：2022-01-14

Applicant: Huawei Technologies Co., Ltd. ,  University of Science and Technology of China

Inventor： Feng Wu ,  Haichuan Ma ,  Dong Liu ,  Haitao Yang

IPC: G06T9/00 ,  G06T3/40

Abstract: The present disclosure provides an image decoding method based on a wavelet transform. The method includes: performing entropy decoding on the compressed bitstream to obtain a reconstructed wavelet coefficient; dequantizing the reconstructed wavelet coefficient to obtain a dequantized wavelet coefficient; and performing N inverse wavelet transforms on the dequantized wavelet coefficient based on the wavelet transform model to obtain a reconstructed image, where the wavelet transform model is implemented based on a convolutional neural network (CNN).

公开(公告)号：US11228387B2

公开(公告)日：2022-01-18

申请号：US17008924

申请日：2020-09-01

Applicant: Huawei Technologies Co., Ltd.

Inventor： Junfeng Luo ,  Jinhui Wang ,  Zhu Cheng ,  Feng Wu

IPC: H04J3/06 ,  G06F1/14 ,  H04L29/06

Abstract: A time synchronization method and a device, where the method includes generating, by a first device, a first time synchronization frame according to a first coding scheme, where the first time synchronization frame includes a first frame header and a first time of day (TOD), the first frame header carries an identifier of the first coding scheme, and the first coding scheme defines a boundary of the first time synchronization frame and a location of the first TOD in the first time synchronization frame, and sending, by the first device, the first time synchronization frame to a second device using a first single line to trigger the second device to identify the first time synchronization frame according to the identifier of the first coding scheme, to obtain the first TOD from the first time synchronization frame, and to trace a time of the first device according to the first TOD.

公开(公告)号：US10103943B2

公开(公告)日：2018-10-16

申请号：US14739860

申请日：2015-06-15

Applicant: Huawei Technologies Co., Ltd.

Inventor： Feng Wu ,  Wenzhong Ye ,  Xiangrui Kong

IPC: G06F15/173 ,  H04L12/24 ,  H04L29/12 ,  H04W8/12 ,  H04W60/00

Abstract: The present invention provides a network topology hiding method and device. The method includes: receiving a first service request, where the first service request is sent by a subscriber through a first network function entity and includes a name of the first network function entity and a subscriber identifier; determining a virtual name set corresponding to the name of the first network function entity, where the virtual name set includes at least two virtual names; and determining one virtual name from the virtual name set, and replacing the name of the first network function entity with the determined virtual name. The unfixed replacement further ensures effectiveness of network topology hiding.

公开(公告)号：US09319266B2

公开(公告)日：2016-04-19

申请号：US14103212

申请日：2013-12-11

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Wei Gao ,  Feng Wu ,  Xiangrui Kong

IPC: G01R31/08 ,  H04L12/24 ,  H04L12/707 ,  H04L12/703

CPC classification number: H04L41/0654 ,  H04L45/22 ,  H04L45/28

Abstract: A method and a network device for managing Diameter routing are disclosed in the communication technology. The network device avoids frequently sending a Diameter message on a faulty routing. In the method: a network apparatus receives a first Diameter message configured to be delivered to a destination node. The network apparatus determines a routing status of a primary routing from the network apparatus to the destination node according to recorded routing status from the network apparatus to the destination node. The network apparatus sends the first Diameter message through the primary routing if the routing status of the primary routing is normal. The network apparatus sends the first Diameter message through an alternative routing from the network apparatus to the destination node if the routing status of the primary routing is faulty.

Abstract translation: 在通信技术中公开了一种用于管理直径路由的方法和网络设备。 网络设备避免在故障路由上频繁发送Diameter消息。 在该方法中：网络设备接收被配置为传送到目的地节点的第一Diameter消息。 网络设备根据从网络设备到目的地节点的记录的路由状态来确定从网络设备到目的地节点的主要路由的路由状态。 如果主路由的路由状态正常，则网络设备通过主路由发送第一个Diameter消息。 如果主路由的路由状态有故障，则网络设备通过替代路由从网络设备向目的地节点发送第一Diameter消息。

公开(公告)号：US20230388490A1

公开(公告)日：2023-11-30

申请号：US18447885

申请日：2023-08-10

Applicant: HUAWEI TECHNOLOGIES CO., LTD. ,  University of Science and Technology of China

Inventor： Dong Liu ,  Changyue Ma ,  Feng Wu ,  Haitao Yang

IPC: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

CPC classification number: H04N19/105 ,  H04N19/159 ,  H04N19/176 ,  H04N19/70

Abstract: This application discloses an encoding method, a decoding method, and a device. The encoding method includes: determining an index of an intra prediction mode syntax element value set of a current picture block; performing, by using a neural network, probability estimation on input data that represents a feature of the current picture block, to obtain probability distribution of a plurality of candidate intra prediction mode syntax element value sets, where the probability distribution represents respective probability values of the plurality of candidate intra prediction mode syntax element value sets; and performing entropy encoding on a probability value related to the index of the intra prediction mode syntax element value set of the current picture block based on the probability distribution of the plurality of candidate intra prediction mode syntax element value sets, to obtain a bitstream.

公开(公告)号：US20180131948A1

公开(公告)日：2018-05-10

申请号：US15861218

申请日：2018-01-03

Applicant: Huawei Technologies Co., Ltd. ,  University of Science and Technology of China

Inventor： Feng Wu ,  Fangdong Chen ,  Houqiang Li ,  Zhuoyi Lv ,  Haitao YANG

IPC: H04N19/176 ,  H04N19/179 ,  H04N19/61 ,  H04N19/573 ,  H04N19/55

CPC classification number: H04N19/176 ,  H04N19/179 ,  H04N19/46 ,  H04N19/55 ,  H04N19/573 ,  H04N19/58 ,  H04N19/61 ,  H04N19/91

Abstract: The present disclosure provides a reference image encoding method, including: encoding sequence, to obtain a reconstructed image of a first and second reference images; determining whether a local area in the second reference image is suitable for updating first reference image; determining whether the first reference image is updated; when the first reference image is not updated, and it is determined the second reference image is suitable for updating the first reference image, replacing a pixel value of a corresponding area or a related area in the first reference image with a pixel value of the local area in the second reference image; and compiling, into the bitstream.