Patents by Inventor Lei Gu

Lei Gu 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: 20250110858
    Abstract: A code coverage rate determining method, comprising: obtaining coverage rate test data to be processed and determining a code branch corresponding to the coverage rate test data to be processed, the coverage rate test data to be processed indicating a coverage rate of a software code corresponding to a first code change record identifier; obtaining historical coverage rate test data corresponding to the code branch, the historical coverage rate test data indicating a coverage rate of a software code corresponding to a second code change record identifier; in case that the first code change record identifier or the second code change record identifier includes a latest code change record identifier corresponding to the code branch, merging first coverage rate test data into second first coverage rate test data in accordance with the position of the first software code in the second software code, to obtain target coverage rate test data.
    Type: Application
    Filed: September 10, 2024
    Publication date: April 3, 2025
    Inventors: Liang Zhu, Lei Gu, Feifei Lv, Paifeng Cheng, Leiting Hu
  • Patent number: 12253374
    Abstract: The disclosed computer-implemented method for protecting users may (i) include collecting a set of field reports indicating respective geofencing violations, (ii) grading a safety measurement, based on an analysis of the respective geofencing violations, for each candidate route in a set of multiple candidate routes generated for travel between a starting point and a destination point, and (iii) recommending, from among the set of multiple candidate routes, a recommended route based at least in part on the recommended route being graded as safer than another candidate route. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: September 15, 2022
    Date of Patent: March 18, 2025
    Assignee: Gen Digital, Inc.
    Inventor: Lei Gu
  • Patent number: 12212292
    Abstract: In certain examples, the disclosure involves or is directed to a circuit-based apparatus that has a T-network, and a plurality of circuit paths with a first path having a first switching node to respond to an RF input signal that is characterized by a first phase, and with a second path having a second switching node to respond to the RF input signal characterized by a second phase that is different than the first phase. The circuit paths may be configured as a push-pull amplification circuit. The T-network may be arranged between the first and second switching nodes and may include a variable impedance circuit. The variable impedance circuit may be adjusted, in accordance with a selected frequency of the RF input signal. The T-network may be characterized by a resonance frequency shunts a second harmonic current associated with the resonance frequency, thereby permitting for use of different selected frequencies.
    Type: Grant
    Filed: September 28, 2021
    Date of Patent: January 28, 2025
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Zikang Tong, Lei Gu, Juan Rivas-Davila
  • Patent number: 12129728
    Abstract: A downhole blowout preventer has a blowout preventer tubing string containing a circulation unit, a packer unit and a pressure-building unit connected in sequence from top to bottom. The pressure-building unit is configured to be activated in response to a command, so as to build up pressure in a space inside the blowout preventer tubing string. The packer unit is configured to be activated when a pressure in said space reaches a first predetermined value, so as to seal an annulus between said blowout preventer tubing string and an external casing or borehole. The circulation unit is configured to be activated when the pressure in said space reaches a second predetermined value, thereby creating a circulation path between an interior and an exterior of the blowout preventer tubing string. The first predetermined value is less than the second predetermined value.
    Type: Grant
    Filed: August 16, 2021
    Date of Patent: October 29, 2024
    Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SINOPEC PETROLEUM ENGINEERING TECHNOLOGY RESEARCH INSTITUTE CO., LTD.
    Inventors: Lanrong Ma, Lei Gu, Huibo Yin, Xiaozhi Zheng, Guangming Cheng, Yuequan Hou
  • Patent number: 11968093
    Abstract: Methods and systems for efficient scaling of a domain name system (DNS) service architecture. In some embodiments a plurality of messaging servers may be separated into a number of pools. A plurality of client devices may be connected to a messaging server within a pool. When a notification is received for a target client device, a backend server may identify the pool that includes the messaging server that is connected to the target client device. The backend server may send the notification to the group of messaging servers within the identified pool while avoiding sending the notification to messaging servers within different pools.
    Type: Grant
    Filed: September 20, 2022
    Date of Patent: April 23, 2024
    Assignee: GEN DIGITAL INC.
    Inventors: Lei Gu, Michael Shavell
  • Publication number: 20240003215
    Abstract: A downhole blowout preventer has a blowout preventer tubing string containing a circulation unit, a packer unit and a pressure-building unit connected in sequence from top to bottom. The pressure-building unit is configured to be activated in response to a command, so as to build up pressure in a space inside the blowout preventer tubing string. The packer unit is configured to be activated when a pressure in said space reaches a first predetermined value, so as to seal an annulus between said blowout preventer tubing string and an external casing or borehole. The circulation unit is configured to be activated when the pressure in said space reaches a second predetermined value, thereby creating a circulation path between an interior and an exterior of the blowout preventer tubing string. The first predetermined value is less than the second predetermined value.
    Type: Application
    Filed: August 16, 2021
    Publication date: January 4, 2024
    Inventors: Lanrong MA, Lei GU, Huibo YIN, Xiaozhi ZHENG, Guangming CHENG, Yuequan HOU
  • Patent number: 11843312
    Abstract: An apparatus including direct-current (DC)-alternating-current (AC) inverter circuitry, first and second circuits, and output circuitry. The DC-AC inverter circuitry inverts a DC input signal corresponding to an input voltage to an AC signal. The first circuit and second circuits respectively include inductive isolation circuits driven in response to power from the at least one AC signal, and rectifier circuits that responds to the inductive isolation circuits by outputting first and second rectified signals, where at least one of the first and second rectifier circuits characterized as being limited by a voltage breakdown rating. The output circuitry provides a DC output voltage signal and to cascade a plurality of signals, including the first and second rectified signals, to provide a voltage source that is dependent on the first and second rectified signals and greater than voltage breakdown rating.
    Type: Grant
    Filed: December 15, 2021
    Date of Patent: December 12, 2023
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Juan M. Rivas-Davila, Lei Gu, Luke C. Raymond, Sanghyeon Park
  • Patent number: 11736488
    Abstract: A computer-implemented method for selectively monitoring devices may include (i) identifying a set of characteristics of a device-usage session of a device, (ii) calculating, based on the set of characteristics, a privacy score for the device-usage session, (iii) selecting, for the device, a device monitoring profile that is correlated with the privacy score and that defines an intensity level of monitoring actions to be performed on the device, and (iv) monitoring activity performed on the device during the device-usage session in accordance with the device monitoring profile that is correlated with the privacy score for the device-usage session. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: March 30, 2020
    Date of Patent: August 22, 2023
    Assignee: GEN DIGITAL INC.
    Inventors: Lei Gu, Chengi Kuo
  • Publication number: 20230122538
    Abstract: In certain examples, methods and semiconductor structures are directed to circuit-based apparatus in which an amplifier includes stacked, first and second circuit amplification stages to operate out of phase from one another for providing a push-pull operation, with each of the first and second circuit stages including a switching circuit and an impedance path to drive the switching circuit. The apparatus further includes a waveform-shaping circuit to shape, in response to each of the first and second circuit stages, a voltage signal for presentation to the switching circuit. As may be implemented in various more-specific examples, the apparatus may generate a constant output voltage with high efficiency across a wide range of resistive loads.
    Type: Application
    Filed: March 12, 2021
    Publication date: April 20, 2023
    Inventors: Juan Rivas-Davila, Lei Gu, Tuofei Chen
  • Patent number: 11505833
    Abstract: Novel gene deletions and translocations involving chromosome 2 resulting in fusion proteins combining part of Anaplastic Lymphoma Kinase (ALK) kinase with part of a secondary protein have been identified herein in human solid tumors, e.g. non-small cell lung carcinoma (NSCLC). Secondary proteins include Echinoderm Microtubule-Associated Protein-Like 4 (EML-4) and TRK-Fusion Gene (TFG). The EML4-ALK fusion protein, which retains ALK tyrosine kinase activity, was confirmed to drive the proliferation and survival of NSCLC characterized by this mutation. The invention therefore provides, in part, isolated polynucleotides and vectors encoding the disclosed mutant ALK kinase polypeptides, probes for detecting it, isolated mutant polypeptides, recombinant polypeptides, and reagents for detecting the fusion and truncated polypeptides.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: November 22, 2022
    Assignee: CELL SIGNALING TECHNOLOGY, INC.
    Inventors: Klarisa Rikova, Herbert Haack, Laura Sullivan, Ailan Guo, Anthony Possemato, Joan MacNeill, Ting-Lei Gu, Jian Yu
  • Patent number: 11411536
    Abstract: Exemplary aspects are directed to a power-amplification circuit including multiple in-parallel circuit paths, each including a power amplifier driving an immittance converter. Current from each output of the respective immittance converters is combined for delivery to a load. In a more specific example, a control circuit may be used to modulate, such as by enabling or disabling power delivered from, one or more of the power amplifiers for fast, coarse resetting of the overall power delivered to the load, and/or to modulate one or more of the modulate immittance converters (e.g., via a phase or signal-timing adjustment) to finely tune the resetting of the overall power delivered to the load. Using the control circuit for providing both the coarse adjustment and the fine adjustment, and fast acting precise delivery of overall power delivered to a load may be realized for any of a variety of applications.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: August 9, 2022
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Kawin Surakitbovorn, Juan Rivas-Davila, Lei Gu
  • Publication number: 20220247322
    Abstract: An apparatus including direct-current (DC)-alternating-current (AC) inverter circuitry, first and second circuits, and output circuitry. The DC-AC inverter circuitry inverts a DC input signal corresponding to an input voltage to an AC signal. The first circuit and second circuits respectively include inductive isolation circuits driven in response to power from the at least one AC signal, and rectifier circuits that responds to the inductive isolation circuits by outputting first and second rectified signals, where at least one of the first and second rectifier circuits characterized as being limited by a voltage breakdown rating. The output circuitry provides a DC output voltage signal and to cascade a plurality of signals, including the first and second rectified signals, to provide a voltage source that is dependent on the first and second rectified signals and greater than voltage breakdown rating.
    Type: Application
    Filed: December 15, 2021
    Publication date: August 4, 2022
    Inventors: Juan M. Rivas-Davila, Lei Gu, Luke C. Raymond, Sanghyeon Park
  • Patent number: 11377211
    Abstract: A flight path generation method includes determining a plurality of photographing positions for a flight vehicle to photograph a subject based on a flight range of the flight vehicle and photographing position intervals, and generating a flight path of the flight vehicle that passes through the photographing positions.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: July 5, 2022
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Lei Gu, Zongyao Qu
  • Patent number: 11334095
    Abstract: A flight path determination method includes obtaining first information of a predetermined region, obtaining second information of multiple aerial vehicles, dividing the predetermined region into a plurality of sub-regions where the multiple aerial vehicles respectively work based on the second information, and determining a flight path for each of the plurality of sub-regions.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: May 17, 2022
    Assignee: SZ DJI TECHNOLOGY CO., LTD.
    Inventors: Lei Gu, Xiangwei Wang
  • Patent number: 11291591
    Abstract: A smart monitor system to capture information such as a subject's breathing rate, body temperature, daily activities, and/or the status of an absorbent article. The system may alert a parent, care provider or attendant when certain parameters fall outside of a specific range. The system may comprise a housing including at least a sensor and a signal processing unit for wirelessly transmitting signals, and a flexible sensing element which may be stretchable and washable.
    Type: Grant
    Filed: June 7, 2021
    Date of Patent: April 5, 2022
    Assignee: VestConn Inc.
    Inventor: Lei Gu
  • Publication number: 20220103141
    Abstract: In certain examples, the disclosure involves or is directed to a circuit-based apparatus that has a T-network, and a plurality of circuit paths with a first path having a first switching node to respond to an RF input signal that is characterized by a first phase, and with a second path having a second switching node to respond to the RF input signal characterized by a second phase that is different than the first phase. The circuit paths may be configured as a push-pull amplification circuit. The T-network may be arranged between the first and second switching nodes and may include a variable impedance circuit. The variable impedance circuit may be adjusted, in accordance with a selected frequency of the RF input signal. The T-network may be characterized by a resonance frequency shunts a second harmonic current associated with the resonance frequency, thereby permitting for use of different selected frequencies.
    Type: Application
    Filed: September 28, 2021
    Publication date: March 31, 2022
    Inventors: Zikang Tong, Lei Gu, Juan Rivas-Davila
  • Publication number: 20220087876
    Abstract: A smart monitor system to capture information such as a subject's breathing rate, body temperature, daily activities, and/or the status of an absorbent article. The system may alert a parent, care provider or attendant when certain parameters fall outside of a specific range. The system may comprise a housing including at least a sensor and a signal processing unit for wirelessly transmitting signals, and a flexible sensing element which may be stretchable and washable.
    Type: Application
    Filed: June 7, 2021
    Publication date: March 24, 2022
    Applicant: VestConn Inc.
    Inventor: Lei Gu
  • Patent number: 11228252
    Abstract: An apparatus including direct-current (DC)-alternating-current (AC) inverter circuitry, first and second circuits, and output circuitry. The DC-AC inverter circuitry inverts a DC input signal corresponding to an input voltage to an AC signal. The first circuit and second circuits respectively include inductive isolation circuits driven in response to power from the at least one AC signal, and rectifier circuits that responds to the inductive isolation circuits by outputting first and second rectified signals, where at least one of the first and second rectifier circuits characterized as being limited by a voltage breakdown rating. The output circuitry provides a DC output voltage signal and to cascade a plurality of signals, including the first and second rectified signals, to provide a voltage source that is dependent on the first and second rectified signals and greater than voltage breakdown rating.
    Type: Grant
    Filed: March 7, 2019
    Date of Patent: January 18, 2022
    Assignee: The Board of Trustees of the Leland Stanford Junior University
    Inventors: Juan M. Rivas-Davila, Lei Gu, Luke C. Raymond, Sanghyeon Park
  • Patent number: 11216559
    Abstract: The disclosed computer-implemented methods for automatically recovering from malware attacks may include (1) saving, in response to determining that a reputation of a process is unknown, a backup copy of a file on a remote storage device prior to allowing the process to modify the file; (2) determining, after the process has modified the file, that the process is potentially malicious; and (3) restoring, in response to determining that the process is potentially malicious, the backup copy of the file from the remote storage device. The provided methods may automatically recover computers from ransomware attacks and other malware attacks which encrypt file systems. Various other methods, systems, and computer-readable media are also disclosed.
    Type: Grant
    Filed: September 13, 2017
    Date of Patent: January 4, 2022
    Assignee: NortonLifeLock Inc.
    Inventors: Lei Gu, Ilya Sokolov
  • Patent number: D1071226
    Type: Grant
    Filed: April 30, 2021
    Date of Patent: April 15, 2025
    Assignee: VestConn Inc.
    Inventors: Lei Gu, Baokun Gui, Timothy Elliott, Stephen Kaes, Matthew Chin, Gareth Brown