Patents by Inventor Le Xi

Le Xi 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).

  • Patent number: 11445959
    Abstract: The present application provides a method and an apparatus of modulating a neuronal firing frequency at a brain functional site in a brain, the method comprising: generating an electromagnetic field with its power in variation at the preset modulating frequency; and arranging the generated electromagnetic field near the brain such that the brain functional site is within the range of the near field of the electromagnetic field, to polarize extracellular fluid at the brain functional site with the power of the electromagnetic field, such that a polarization density of the extracellular fluid varies at the preset modulating frequency and neurons in the extracellular fluid are modulated to fire at the preset modulating frequency.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: September 20, 2022
    Inventors: Xiaoping Li, Qian Xia, Jessica Li, Joanna Le Xi Li
  • Patent number: 11395617
    Abstract: The present application provides a method and an apparatus of actively sensing a neuronal firing frequency at a functional site in a brain, the method comprising: generating a varying electromagnetic field and acting a near field of the generated electromagnetic field on a targeted brain functional site; sensing the alteration of the electromagnetic field at the targeted brain functional site; and determining a variation frequency of the alteration of the electromagnetic field at the targeted brain functional site as the neuronal firing frequency at the targeted brain functional site.
    Type: Grant
    Filed: August 27, 2018
    Date of Patent: July 26, 2022
    Inventors: Xiaoping Li, Qian Xia, Jessica Li, Joanna Le Xi Li
  • Publication number: 20210128051
    Abstract: Disclosed is a system for monitoring activities of Autonomic Nervous System (ANS) for preventive medicine comprising: a sensing device configured to sense an involuntary control signal from the ANS of a subject in sleep; and an analyzing device configured to analyze the sensed involuntary control signal received from the sensing device to evaluate a dynamic health condition of the subject, and output the evaluated dynamic health condition.
    Type: Application
    Filed: November 6, 2020
    Publication date: May 6, 2021
    Inventors: Xiaoping LI, Qian XIA, Jessica LI, Joanna Le Xi LI
  • Publication number: 20190125251
    Abstract: A method and apparatus manage a sleep mode of a brain by measuring a sleep depth as well as a sleep stage of the brain in the sleep mode. A damping/blocking level of a reticular formation is measured in descending motor cortex-emitted idle impulses to at least one part of a body.
    Type: Application
    Filed: October 29, 2018
    Publication date: May 2, 2019
    Inventors: Xiaoping LI, Qian XIA, Jessica LI, Joanna Le Xi LI
  • Publication number: 20190059760
    Abstract: The present application provides a method and an apparatus of actively sensing a neuronal firing frequency at a functional site in a brain, the method comprising: generating a varying electromagnetic field and acting a near field of the generated electromagnetic field on a targeted brain functional site; sensing the alteration of the electromagnetic field at the targeted brain functional site; and determining a variation frequency of the alteration of the electromagnetic field at the targeted brain functional site as the neuronal firing frequency at the targeted brain functional site.
    Type: Application
    Filed: August 27, 2018
    Publication date: February 28, 2019
    Inventors: Xiaoping LI, Qian XIA, Jessica LI, Joanna Le Xi LI
  • Publication number: 20190060658
    Abstract: The present application provides a method and an apparatus of modulating a neuronal firing frequency at a brain functional site in a brain, the method comprising: generating an electromagnetic field with its power in variation at the preset modulating frequency; and arranging the generated electromagnetic field near the brain such that the brain functional site is within the range of the near field of the electromagnetic field, to polarize extracellular fluid at the brain functional site with the power of the electromagnetic field, such that a polarization density of the extracellular fluid varies at the preset modulating frequency and neurons in the extracellular fluid are modulated to fire at the preset modulating frequency.
    Type: Application
    Filed: August 27, 2018
    Publication date: February 28, 2019
    Inventors: Xiaoping LI, Qian XIA, Jessica LI, Joanna Le Xi LI
  • Publication number: 20170021200
    Abstract: The present invention is a method for a bleedingless surgical tool that induces cavitation in blood vessel, tissue, and/or body fluid to facilitate platelet plug formation and induces cavitation together with a temperature rise to facilitate fibrin formation, inducing and enhancing blood clotting such that bleeding does not occur while cutting is in progress. The present invention is further a bleedingless surgical tool comprising a cutting portion of the surgical tool and an ultrasonic vibration generating portion forming by an ultrasonic alternating power source and an ultrasonic vibration transducer, which during cutting of live tissues and blood vessels induces cavitation in the blood vessel, tissue, and/or body fluid to facilitate platelet plug formation and induces cavitation and temperature rise to facilitate fibrin formation, inducing and enhancing blood clotting such that bleeding does not occur while the cutting is in progress.
    Type: Application
    Filed: July 21, 2016
    Publication date: January 26, 2017
    Inventors: Joanna Le Xi LI, Qian XIA, Xiaoping LI
  • Patent number: 9288835
    Abstract: A method, a user terminal and a network side equipment for improving network resource occupation are disclosed. A dormancy timer is set for the user terminal and a time threshold of the dormancy timer is adjusted dynamically by monitoring a resource occupation rate of the communication system, where time threshold of the dormancy timer is inversely proportional to the resource occupation rate. In this way, relatively longer time threshold of the dormancy timer may be set when a system occupation rate is low, so as to improve user experience; and relatively shorter time threshold of the dormancy timer may be set when the system occupation rate is high, so as to provide a higher capacity and provide services for more user terminals.
    Type: Grant
    Filed: December 2, 2014
    Date of Patent: March 15, 2016
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Le Xi
  • Publication number: 20150099556
    Abstract: A method, a user terminal and a network side equipment for improving network resource occupation are disclosed. A dormancy timer is set for the user terminal and a time threshold of the dormancy timer is adjusted dynamically by monitoring a resource occupation rate of the communication system, where time threshold of the dormancy timer is inversely proportional to the resource occupation rate. In this way, relatively longer time threshold of the dormancy timer may be set when a system occupation rate is low, so as to improve user experience; and relatively shorter time threshold of the dormancy timer may be set when the system occupation rate is high, so as to provide a higher capacity and provide services for more user terminals.
    Type: Application
    Filed: December 2, 2014
    Publication date: April 9, 2015
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Le XI
  • Patent number: 8923906
    Abstract: A method, a user terminal and a network side equipment for improving network resource occupation are disclosed. A dormancy timer is set for the user terminal and a time threshold of the dormancy timer is adjusted dynamically by monitoring a resource occupation rate of the communication system, where time threshold of the dormancy timer is inversely proportional to the resource occupation rate. In this way, relatively longer time threshold of the dormancy timer may be set when a system occupation rate is low, so as to improve user experience; and relatively shorter time threshold of the dormancy timer may be set when the system occupation rate is high, so as to provide a higher capacity and provide services for more user terminals.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: December 30, 2014
    Assignee: Huawei Technoloies Co., Ltd.
    Inventor: Le Xi
  • Publication number: 20140226477
    Abstract: Embodiments of the present invention disclose a method, an apparatus, and a system for improving user experience of a small flow user. A base station controller (BSC) periodically collects statistics on an average data transmission rate of a terminal. The BSC compares the average data transmission rate with a set threshold and determines whether the average data transmission rate is smaller than the set threshold. The BSC sends a first priority adjustment command to a base transceiver station BTS if the average data transmission rate is smaller than the set threshold. The first priority adjustment command carries information of adjusting a scheduling priority of the terminal to a high priority, so that the BTS can adjust the scheduling priority of the terminal to the high priority.
    Type: Application
    Filed: April 17, 2014
    Publication date: August 14, 2014
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Bo Xie, Le Xi
  • Publication number: 20120282963
    Abstract: A method, a user terminal and a network side equipment for improving network resource occupation are disclosed. A dormancy timer is set for the user terminal and a time threshold of the dormancy timer is adjusted dynamically by monitoring a resource occupation rate of the communication system, where time threshold of the dormancy timer is inversely proportional to the resource occupation rate. In this way, relatively longer time threshold of the dormancy timer may be set when a system occupation rate is low, so as to improve user experience; and relatively shorter time threshold of the dormancy timer may be set when the system occupation rate is high, so as to provide a higher capacity and provide services for more user terminals.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 8, 2012
    Applicant: Huawei Technologies Co., Ltd.
    Inventor: Le Xi
  • Patent number: D898436
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: October 13, 2020
    Inventors: Xiaoping Li, Qian Xia, Jessica Li, Joanna Le Xi Li