Patents by Inventor Yuemin Li

Yuemin Li 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: 20190013582
    Abstract: The present invention provides a phase shifter assembly for an array antenna, comprising: a first level phase shifter, wherein the first level phase shifter is configured to control the phases of a plurality of sub-arrays of the array antenna, where each sub-array comprises one or more radiating elements; a second level phase shifter, wherein the second level phase shifter is configured to proportionally change the phases of the radiating elements in the corresponding sub-arrays; and a power divider, wherein the power divider is connected between the first level phase shifter and the second level phase shifter. The phase shifter assembly has the advantages of both a distributed phase shifter network and a lumped phase shifter network. Specifically, the phase shifter assemblies can independently control the phases of the radiating elements in the array to obtain better sidelobe suppression.
    Type: Application
    Filed: August 25, 2016
    Publication date: January 10, 2019
    Applicant: CommScope Technologies LLC
    Inventors: Yuemin LI, Hangsheng WEN, Haifeng LI
  • Publication number: 20180375220
    Abstract: Antenna arrays include first and second radiating elements, which are responsive to respective first and second hybrid radio frequency (RF) signals, and a power divider circuit. The power divider circuit is configured to generate the first and second hybrid RF signals as power-reduced combinations of first and second RF input signals received at input terminals thereof. For example, the first hybrid RF signal may be generated as a combination of a 70-90 percent energy contribution of the first RF input signal with a 0.26-2.7 percent energy contribution of the second RF input signal. Similarly, the second hybrid RF signal may be generated as a 70-90 percent energy contribution of the second RF input signal with a 0.26-2.7 percent energy contribution of the first RF input signal.
    Type: Application
    Filed: June 20, 2018
    Publication date: December 27, 2018
    Inventors: XIA MEI, YUEMIN LI, MARTIN L. ZIMMERMAN, HAIFENG LI, LONG SHAN
  • Publication number: 20180342813
    Abstract: An antenna assembly comprises a plurality of radiating elements; an unshielded circuit; and an input terminal; wherein the radiating elements are connected to the unshielded circuit through a plurality of cables, and the unshielded circuit is connected to the input terminal through an input cable; and wherein at least one of the plurality of cables and the input cable is connected to an open connect line.
    Type: Application
    Filed: May 18, 2018
    Publication date: November 29, 2018
    Inventors: Haifeng Li, Yuemin Li, Xia Mei, Jinchun He
  • Patent number: 10110500
    Abstract: A method involving receiving application monitoring data for a first application executing in a first cloud provider and a second application executing in a second cloud provider, wherein both the first and second cloud providers communication via a cloud exchange, performing traffic latency analytics using the received application monitoring data, determining, based on the traffic latency analytics, that a peering agreement between the first cloud provider and the cloud exchange should be moved to a Central office Re-architected as a Data Center (CORD), requesting a Path Computation Engine to find the CORD that meets a required set of criteria, establishing a private link between the CORD and the cloud exchange, moving the at least one peering agreement to be between the first cloud provider and the CORD, and forwarding at least a portion of the traffic originating from the first application in the first cloud provider directly via the CORD.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: October 23, 2018
    Assignee: Ciena Corporation
    Inventors: Mallikarjunappa Kore, Aung Htay, Yuemin Li
  • Publication number: 20180123964
    Abstract: A method involving receiving application monitoring data for a first application executing in a first cloud provider and a second application executing in a second cloud provider, wherein both the first and second cloud providers communication via a cloud exchange, performing traffic latency analytics using the received application monitoring data, determining, based on the traffic latency analytics, that a peering agreement between the first cloud provider and the cloud exchange should be moved to a Central office Re-architected as a Data Center (CORD), requesting a Path Computation Engine to find the CORD that meets a required set of criteria, establishing a private link between the CORD and the cloud exchange, moving the at least one peering agreement to be between the first cloud provider and the CORD, and forwarding at least a portion of the traffic originating from the first application in the first cloud provider directly via the CORD.
    Type: Application
    Filed: November 3, 2016
    Publication date: May 3, 2018
    Applicant: Ciena Corporation
    Inventors: Mallikarjunappa Kore, Aung Htay, Yuemin Li