公开(公告)号：US20220360539A1

公开(公告)日：2022-11-10

申请号：US17814073

申请日：2022-07-21

Applicant: Huawei Technologies Co., Ltd.

Inventor： Chen CHEN ,  Sen WANG ,  Gong ZHANG

IPC: H04L47/28 ,  H04L41/16 ,  H04L41/082

Abstract: This application provides a model training-based communication method and apparatus, and a system, to effectively decrease a data amount of a parameter transmitted between the communication device and the central server. The method includes: The communication device determines a change amount of a first model parameter value. If the communication device determines, based on the change amount of the first model parameter value, that a first model parameter is stable, the communication device stops sending an update amount of the first model parameter value to the central server in a preset time period. The update amount of the first model parameter value is determined by the communication device based on user data in a process of performing model training. The communication device receives a second model parameter value sent by the central server.

公开(公告)号：US20250021648A1

公开(公告)日：2025-01-16

申请号：US18898976

申请日：2024-09-27

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Feng TAN ,  Sen WANG ,  Gong ZHANG ,  Jinhu LIU

IPC: G06F21/56 ,  G06F21/55

Abstract: Embodiments of this application provide a method for detecting ransomware, a related system, and a storage medium. The method includes: obtaining a partial feature of a target file based on preset data in the target file, where the partial feature includes a partial incremental entropy and/or partial histogram statistical data; determining, based on the partial feature of the target file, whether the target file is an encrypted file; and determining, if the target file is the encrypted file, that the target file is attacked by the ransomware. The method can increase file detection efficiency and accuracy.

公开(公告)号：US20220357636A1

公开(公告)日：2022-11-10

申请号：US17871533

申请日：2022-07-22

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Sen WANG ,  Jian SHI ,  Zhi YUAN ,  Weidong TANG ,  Along ZHOU ,  Chenhan LIU

IPC: G03B17/55 ,  G03B30/00 ,  H04N5/225

Abstract: A camera assembly is provided. The camera assembly includes an auxiliary mount, a rotatable camera module and a flexible heat conducting assembly, the rotatable camera module includes a rotatable mount and a camera function group disposed on the rotatable mount, the rotatable mount is rotatably connected to the auxiliary mount, the flexible heat conducting assembly is fixedly connected to one end of the camera function group, and the flexible heat conducting assembly is further configured to be connected to a non-rotatable camera module component, so that heat generated by the camera function group is transferred to the non-rotatable camera module component. A flexible heat conducting assembly performs a cross-region transfer of heat generated by the rotatable camera module, to help reduce an ambient temperature of the rotatable camera module, so as to improve photography quality of the camera module, and prolong a photography time period of the rotatable camera module.