Patents by Inventor Donghai Ma

Donghai Ma 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).

  • Publication number: 20240130067
    Abstract: A power distribution subrack and power distribution equipment, and is related to the field of circuit technologies. The power distribution subrack includes a subrack body and a collection board, the collection board is disposed inside the subrack body, and the collection board includes a plurality of connection terminals and a plurality of controllers. Second ends of at least two of the plurality of connection terminals are connected to a same controller. First ends of at least some of the plurality of connection terminals are plug-connected to jacks of one or more circuit breakers, and the at least some connection terminals are in a one-to-one correspondence with the one or more circuit breakers. Each of the at least some connection terminals obtains a status signal of a corresponding circuit breaker, and transmits the status signal to a corresponding controller.
    Type: Application
    Filed: December 22, 2023
    Publication date: April 18, 2024
    Applicant: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Donghai MA, Zihao LI
  • Publication number: 20240080981
    Abstract: A circuit board assembly (1), comprising a first circuit board (10) and a second circuit board (20) which are electrically connected with each other, and a monolithic substrate (30) configured for supporting a power component and comprising a first contact surface (31) that is fixedly connected to and forms a thermal contact with the second circuit board (20), the circuit board assembly being characterized in that, the substrate (30) further comprises a second contact surface (32) that is fixedly connected to the first circuit board (10) and forms a thermal contact with the first circuit board (10) so that the substrate functions as an extension of the first circuit board to support the second circuit board. A radio unit comprising a circuit board assembly (1) is also disclosed.
    Type: Application
    Filed: April 11, 2021
    Publication date: March 7, 2024
    Inventors: Donghai Yu, Pinghua Duan, Qinqin Lu, Peng Liu, Yunxuan Ma, Gongao Xu
  • Publication number: 20220384994
    Abstract: A pluggable module includes a power control unit, an interface unit, a monitoring unit, and a signal linkage unit. The power control unit is connected to the interface unit, and the pluggable module can be inserted into an external device by using the interface unit. One end of a pull ring is rotatably connected to a bracket, and the other end can trigger a signal switch. When the pull ring is in an ON state, the signal switch is triggered to send a first switch signal, or when the pull ring is in an OFF state, the signal switch sends a second switch signal. The monitoring unit is configured to control, upon receiving the first switch signal, the power control unit to be powered on, or control, upon receiving the second switch signal, the power control unit to be powered off.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 1, 2022
    Applicant: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Zhanlin REN, Qianlin TANG, Wei GUO, Xiaoke RAN, Hongbing WANG, Donghai MA, Xinquan HUANG
  • Patent number: 10135238
    Abstract: A monitoring circuit includes a configuration interface, a control circuit, a detection circuit, a direct current voltage source, a switch circuit, and a first resistor. A first end of the configuration interface is separately connected to the direct current voltage source and an input end of the switch circuit; a second end of the configuration interface is separately connected to a first end of the first resistor and an output end of the switch circuit; a control end of the switch circuit is connected to the control circuit; a second end of the first resistor is grounded; the detection circuit is connected to the first end of the first resistor; the configuration interface is configured to connect to a dry contact; the control circuit controls closing or opening of the switch circuit; and the detection circuit detects a voltage between two ends of the first resistor.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: November 20, 2018
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Donghai Ma, Zhiwei Leng
  • Publication number: 20170063078
    Abstract: A monitoring circuit includes a configuration interface, a control circuit, a detection circuit, a direct current voltage source, a switch circuit, and a first resistor. A first end of the configuration interface is separately connected to the direct current voltage source and an input end of the switch circuit; a second end of the configuration interface is separately connected to a first end of the first resistor and an output end of the switch circuit; a control end of the switch circuit is connected to the control circuit; a second end of the first resistor is grounded; the detection circuit is connected to the first end of the first resistor; the configuration interface is configured to connect to a dry contact; the control circuit controls closing or opening of the switch circuit; and the detection circuit detects a voltage between two ends of the first resistor.
    Type: Application
    Filed: November 14, 2016
    Publication date: March 2, 2017
    Inventors: Donghai Ma, Zhiwei Leng
  • Publication number: 20030069954
    Abstract: Subnet pooling by host group type and internet service provider allows filtering of subnet pool and efficient assignment of an incoming host request to an appropriate subnet within a group and ISP of the host request types.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 10, 2003
    Applicant: ADC Telecommunications, Inc.
    Inventors: Donghai Ma, Ajit Nair, Craig Boyle
  • Publication number: 20030069948
    Abstract: An automated registration process for registering a new user and new high speed access device with an internet service provider is accomplished without requiring user input aside from choices of service provider, service level agreement, and the provision of basic user information. A mediation server communicates with a provisioning server to obtain necessary access device information without requiring a user to access or know such information.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 10, 2003
    Inventors: Donghai Ma, Ajit Nair, Craig Boyle, Eric James Gieseke, Jyotirmoy Sarkar, Tavit Ohanian
  • Publication number: 20030069976
    Abstract: Intelligent round robin assignment of users to subnets within an internet service provider includes determining an assignment criteria for assigning users to the ISP, and assigning users to the subnet that best fits the assignment criteria. Assignment criteria are determined based on any number of factors including available resources and user history.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 10, 2003
    Applicant: ADC Telecommunications, Inc.
    Inventors: Craig Boyle, Ajit Nair, Donghai Ma
  • Publication number: 20030069965
    Abstract: A method and apparatus for provisioning on a per cable modem level includes associating any customer provided equipment behind a gateway cable modem to the same internet service provider as the cable modem.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 10, 2003
    Applicant: ADC Telecommunications, Inc.
    Inventors: Donghai Ma, Ajit Nair, Craig Boyle
  • Publication number: 20030070063
    Abstract: A method and apparatus for providing access to configuration files even if a remote server containing configuration profile information is unavailable includes caching known configuration files locally, and using the known configuration files in the event of a remote server failure or overload.
    Type: Application
    Filed: October 5, 2001
    Publication date: April 10, 2003
    Applicant: ADC Telecommunications, Inc.
    Inventors: Craig Boyle, Ajit Nair, Donghai Ma, Huimin Li, Benoit Legault