Patents by Inventor Lei Zan

Lei Zan 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).

  • POWER SUPPLY SYSTEM AND ICT DEVICE
    Publication number: 20230140489
    Abstract: The power supply system includes a first voltage conversion unit, where the first voltage conversion unit is an isolated voltage conversion unit, and the first voltage conversion unit is connected to a power supply, and is configured to convert a voltage of the power supply into a power supply voltage of the service board, that is, a first voltage; and a second voltage conversion unit, where the second voltage conversion unit is a non-isolated voltage conversion unit, the second voltage conversion unit is deployed on the service board, and the second voltage conversion unit is configured to convert the first voltage into a power supply voltage of a first load module on the service board, that is, a second voltage.
    Type: Application
    Filed: December 29, 2022
    Publication date: May 4, 2023
    Applicant: Huawei Digital Power Technologies Co., Ltd.
    Inventors: Junwei HAN, Zhongshu ZHANG, Lei ZAN
  • Systems and methods for resource allocation to multiple antenna arrays for maintaining a constant bit rate (CBR) channel
    Patent number: 7430190
    Abstract: A wireless communication system configured for the efficient allocation of resources is provided. The wireless communication system can include a transmit system having a first set of one or more antennas each configured to transmit a data signal over a region to a receive system having a second set of two or more antennas each configured to receive the transmitted data signal. The transmit system can be configured to adjust a transmission parameter of a data signal based on a level of signal fading in the region to sustain a target bit rate, adjust a power and a bit rate at which a data signal is transmitted based on the level of signal fading in the region and select a subset of antennas within the first set of antennas to be used to transmit a data signal based on the level of signal fading in the region.
    Type: Grant
    Filed: January 24, 2005
    Date of Patent: September 30, 2008
    Assignee: The Regents of the University of California
    Inventors: Wenjun Luo, Magda El Zarki, Lei Zan
  • Systems and methods for resource allocation to multiple antenna arrays for maintaining a constant bit rate (CBR) channel
    Publication number: 20060018288
    Abstract: A wireless communication system configured for the efficient allocation of resources is provided. The wireless communication system can include a transmit system having a first set of one or more antennas each configured to transmit a data signal over a region to a receive system having a second set of two or more antennas each configured to receive the transmitted data signal. The transmit system can be configured to adjust a transmission parameter of a data signal based on a level of signal fading in the region to sustain a target bit rate, adjust a power and a bit rate at which a data signal is transmitted based on the level of signal fading in the region and select a subset of antennas within the first set of antennas to be used to transmit a data signal based on the level of signal fading in the region.
    Type: Application
    Filed: January 24, 2005
    Publication date: January 26, 2006
    Inventors: Wenjun Luo, Magda El Zarki, Lei Zan