Patents by Inventor Le Yi

Le Yi 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: 11061611
    Abstract: A method and a system for creating a workload distribution plan on a storage system. The method includes, for each storage location, initializing components for at least one data type, such that the components establish a baseline distribution percentage. The method also includes writing data packages onto the storage system over a predetermined time period. The method also includes, for each data type on each storage location, creating a workload distribution plan, where the workload distribution plan distributes a workload of the storage system to the storage location. The method also includes implementing the workload distribution plan on the storage system.
    Type: Grant
    Filed: February 21, 2019
    Date of Patent: July 13, 2021
    Assignee: International Business Machines Corporation
    Inventors: Da Lei Zhang, Jia Jun Lu, Li Li Gu, Le Yi Zhou, Xiao Yu Wang, Wen Bao Yin
  • Publication number: 20200272356
    Abstract: A method and a system for creating a workload distribution plan on a storage system. The method includes, for each storage location, initializing components for at least one data type, such that the components establish a baseline distribution percentage. The method also includes writing data packages onto the storage system over a predetermined time period. The method also includes, for each data type on each storage location, creating a workload distribution plan, where the workload distribution plan distributes a workload of the storage system to the storage location. The method also includes implementing the workload distribution plan on the storage system.
    Type: Application
    Filed: February 21, 2019
    Publication date: August 27, 2020
    Inventors: Da Lei Zhang, Jia Jun Lu, Li Li Gu, Le Yi Zhou, Xiao Yu Wang, Wen Bao Yin
  • Patent number: 8998808
    Abstract: A generic model structure captures basic characteristics in BIS-based patients' responses to anesthesia and surgical stimulation, the model being used in combination with the insight of an anesthesiologist. The model structure represents the patient response with a time delay, a time constant for response speed, and a nonlinear function for drug sensitivity. Clinical data confirms the model structure and is used to establish parameters and function forms for individual patients. A feedback and predictive control strategy for anesthesia drug infusion is then introduced on the basis of the patient model. Feedback control alone cannot avoid large fluctuations in BIS values when significant surgical stimulation is imposed, as a result of time delays in a patient's response to drug infusion. Predictive control attenuates fluctuations of BIS levels from surgical stimulation.
    Type: Grant
    Filed: June 21, 2004
    Date of Patent: April 7, 2015
    Assignee: Wayne State University
    Inventors: Le Yi Wang, Hong Wang, Gang George Yin
  • Publication number: 20070219059
    Abstract: A method and system is invented for continuous monitoring, real-time analysis, and automated and personalized training of exercise. The system embodies a multi-sensor data acquisition system to measure body sounds, body signs, vital signs, motions, and machine settings continuously and automatically. The system is able to capture the body sounds and other vital signs, analyze them, and report and display summarized results. The signal processing functions utilize a unique signal separation and noise removal methodology by which authentic signals can be extracted from interfered signals and in noisy environments, even when signals and noises have similar frequency components or are statistically dependent. The method and system will facilitate continuous monitoring, real-time analysis, and computerized evaluation of level of effort, physical stress, and resulting fatigue during physical activity or exercise.
    Type: Application
    Filed: March 19, 2007
    Publication date: September 20, 2007
    Inventors: Mark H. Schwartz, Le Yi Wang, Hong Wang
  • Publication number: 20070015972
    Abstract: A generic model structure captures basic characteristics in BIS-based patients' responses to anesthesia and surgical stimulation, the model being used in combination with the insight of an anesthesiologist. The model structure represents the patient response with a time delay, a time constant for response speed, and a nonlinear function for drug sensitivity. Clinical data confirms the model structure and is used to establish parameters and function forms for individual patients. A feedback and predictive control strategy for anesthesia drug infusion is then introduced on the basis of the patient model. Feedback control alone cannot avoid large fluctuations in BIS values when significant surgical stimulation is imposed, as a result of time delays in a patient's response to drug infusion. Predictive control attenuates fluctuations of BIS levels from surgical stimulation.
    Type: Application
    Filed: June 21, 2004
    Publication date: January 18, 2007
    Inventors: Le Yi Wang, Hong Wang, Gang Yin
  • Patent number: 6826902
    Abstract: A method for predicting oxygen capacity of an LNT during storage phase of such LNT and the amount of NOx stored in the LNT during purge phase thereof as a function of the time history of an output signal produced by an exhaust gas sensor disposed downstream of the LNT. Oxygen storage capacity of the (LNT) is estimated by integrating output signal over time to determine the amount of oxygen stored in the LNT as function of time.
    Type: Grant
    Filed: March 18, 2003
    Date of Patent: December 7, 2004
    Assignee: Ford Global Technologies, LLC
    Inventors: Jing Sun, Yong-Wha Kim, Le Yi Wang
  • Publication number: 20040182068
    Abstract: A method for predicting oxygen capacity of an LNT during storage phase of such LNT and the amount of NOx stored in the LNT during purge phase thereof as a function of the time history of an output signal produced by an exhaust gas sensor disposed downstream of the LNT. Oxygen storage capacity of the (LNT) is estimated by integrating output signal over time to determine the amount of oxygen stored in the LNT as function of time. The method includes evaluating the integrated output signal at a time the voltage indicates the exhaust has switched from a condition rich of stoichiometry to a condition lean of stoichiometry. A relative amount of oxygen stored in the LNT is calculated at the switch time. The calculation is a function of the air-fuel ratio of the exhaust and an air-fuel ratio of exhaust leaving the LNT.
    Type: Application
    Filed: March 18, 2003
    Publication date: September 23, 2004
    Inventors: Jing Sun, Yong-Wha Kim, Le Yi Wang
  • Patent number: 6425454
    Abstract: A steering system (10) and method (70) for controlling the steering of a vehicle having a steering wheel (12), a steering column (14)connected to the steering wheel (12), and an electric motor (20) operatively engaged with the steering column (14) for supplying torque assist. A velocity detector is employed for detecting an angular velocity {dot over (&thgr;)}m of the electric motor (20). The system has a torque estimator (40) for determining an estimated torque signal Tdest as a function of the detected motor velocity {dot over (&thgr;)}m, and a motor controller (30) for generating a motor control signal (U) as a function of the estimated torque. Accordingly, the present invention reduces the complexity and cost of the electric power assist steering system by eliminating the need for a conventional pinion torque sensor, without sacrificing vehicle steering performance.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: July 30, 2002
    Assignee: Ford Global Technologies, Inc.
    Inventors: Rakan C. Chabaan, Le Yi Wang
  • Patent number: 6293366
    Abstract: A steering system (10) and method (70) for controlling the steering of a vehicle having a steering wheel (12), a steering column (14) connected to said steering wheel (12), and an electric motor (20) operatively engaged with the steering column (14) for supplying torque assist. A steering angle sensor (32) is employed for sensing an angular position &thgr;c of the steering wheel (12). The system has a torque estimator (40) for determining an estimated torque signal (Tdest) as a function of the measured steering wheel angle, and a motor controller (30) for generating a motor control signal (U) as a function of said estimated torque. Accordingly, the present invention reduces the complexity and cost of the electric power assist steering system by eliminating the need for a conventional pinion torque sensor, without sacrificing vehicle steering performance.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: September 25, 2001
    Assignee: Ford Global Technologies, Inc.
    Inventors: Rakan C. Chabaan, Le Yi Wang
  • Patent number: 6250419
    Abstract: A steering system (10) and method (70) for controlling the steering of a vehicle having a steering assembly including a steering wheel (12), a steering column (14) connected to said steering wheel (12), and an electric motor (20) operatively engaged with the steering assembly for supplying torque assist. A steering angle sensor (32) is employed for sensing an angular position &thgr;c of the steering column (14). The system has a torque estimator (40) for determining an estimated torque signal (Tdest), and an H-infinity controller (64) coupled in a feedback path (44) for generating a feedback signal which is combined with a feedforward signal to generate a motor control signal (U) as a function of the estimated torque. Accordingly, the present invention provides a stable and robust control system, without sacrificing steering performance and desired steering feel.
    Type: Grant
    Filed: February 16, 2000
    Date of Patent: June 26, 2001
    Assignee: Ford Global Technologies, Inc.
    Inventors: Rakan C. Chabaan, Le Yi Wang
  • Patent number: D1047068
    Type: Grant
    Filed: February 2, 2024
    Date of Patent: October 15, 2024
    Inventor: Le Yi