Patents by Inventor Changxin Yao

Changxin Yao has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Device control method, device, and communication system
    Patent number: 12316381
    Abstract: A communication system includes a first device and a second device connected through an electro-optical composite cable. The electro-optical composite cable includes an optical fiber and a power supply cable. The optical fiber is used to transmit a data signal. The power supply cable is used to transmit a direct current. The first device is configured to send a first alternating-current signal to the second device through the power supply cable. The second device is configured to switch a running status based on the first alternating-current signal.
    Type: Grant
    Filed: December 5, 2022
    Date of Patent: May 27, 2025
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Qing Lu, Changxin Yao, Chao Gu, Jian Xiang, Shiyong Fu
  • Connection manner identification method, power sourcing equipment, powered device, and storage medium
    Patent number: 11876382
    Abstract: A connection manner identification method includes power sourcing equipment separately sending load adjustment indications to powered devices by using data ports, where each load adjustment indication in the load adjustment indications indicates a corresponding powered device to adjust a load. The powered devices are separately connected to power supply ports of the power sourcing equipment by using power supply cables, and the powered devices are separately connected to the data ports of the power sourcing equipment by using data cables. The power sourcing equipment obtains output power changes of the power supply ports caused by load adjustment of the powered devices, and the power sourcing equipment determines, based on the output power changes, a first data port and a power supply port that are connected to a same powered device in the powered devices.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: January 16, 2024
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Chao Gu, Jian Xiang, Qing Lu, Guirong Ji, Shiyong Fu, Changxin Yao
  • Device Control Method, Device, and Communication System
    Publication number: 20230134181
    Abstract: A communication system includes a first device and a second device connected through an electro-optical composite cable. The electro-optical composite cable includes an optical fiber and a power supply cable. The optical fiber is used to transmit a data signal. The power supply cable is used to transmit a direct current. The first device is configured to send a first alternating-current signal to the second device through the power supply cable. The second device is configured to switch a running status based on the first alternating-current signal.
    Type: Application
    Filed: December 5, 2022
    Publication date: May 4, 2023
    Inventors: Qing Lu, Changxin Yao, Chao Gu, Jian Xiang, Shiyong Fu
  • Connection Manner Identification Method, Power Sourcing Equipment, Powered Device, and Storage Medium
    Publication number: 20210408802
    Abstract: A connection manner identification method includes power sourcing equipment separately sending load adjustment indications to powered devices by using data ports, where each load adjustment indication in the load adjustment indications indicates a corresponding powered device to adjust a load. The powered devices are separately connected to power supply ports of the power sourcing equipment by using power supply cables, and the powered devices are separately connected to the data ports of the power sourcing equipment by using data cables. The power sourcing equipment obtains output power changes of the power supply ports caused by load adjustment of the powered devices, and the power sourcing equipment determines, based on the output power changes, a first data port and a power supply port that are connected to a same powered device in the powered devices.
    Type: Application
    Filed: June 28, 2021
    Publication date: December 30, 2021
    Inventors: Chao Gu, Jian Xiang, Qing Lu, Guirong Ji, Shiyong Fu, Changxin Yao