Patents by Inventor Ping Lu

Ping Lu 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: 11893327
    Abstract: System and method that allow utilize machine learning algorithms to move a micro-object to a desired position are described. A sensor such as a high speed camera or capacitive sensing, tracks the locations of the objects. A dynamic potential energy landscape for manipulating objects is generated by controlling each of the electrodes in an array of electrodes. One or more computing devices are used to: estimate an initial position of a micro-object using the sensor; generate a continuous representation of a dynamic model for movement of the micro-object due to electrode potentials generated by at least some of the electrodes and use automatic differentiation and Gauss quadrature rules on the dynamic model to derive optimum potentials to be generated by the electrodes to move the micro-object to the desired position; and map the calculated optimized electrode potentials to the array to activate the electrodes.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: February 6, 2024
    Assignee: XEROX CORPORATION
    Inventors: Ion Matei, Anne Plochowietz, Saigopal Nelaturi, Johan de Kleer, Jeng Ping Lu, Lara S. Crawford, Eugene M. Chow
  • Publication number: 20240036534
    Abstract: Control loop latency can be accounted for in predicting positions of micro-objects being moved by using a hybrid model that includes both at least one physics-based model and machine-learning models. The models are combined using gradient boosting, with a model created during at least one of the stages being fitted based on residuals calculated during a previous stage based on comparison to training data. The loss function for each stage is selected based on the model being created. The hybrid model is evaluated with data extrapolated and interpolated from the training data to prevent overfitting and ensure the hybrid model has sufficient predictive ability. By including both physics-based and machine-learning models, the hybrid model can account for both deterministic and stochastic components involved in the movement of the micro-objects, thus increasing the accuracy and throughput of the micro-assembly.
    Type: Application
    Filed: September 6, 2023
    Publication date: February 1, 2024
    Inventors: Anne Plochowietz, Anand Ramakrishnan, Warren Jackson, Lara S. Crawford, Bradley Rupp, Sergey Butylkov, Jeng Ping Lu, Eugene M. Chow
  • Patent number: 11882797
    Abstract: An automatic detection and recovery device for residual agricultural mulch film, and a method of using the device, comprising a quadcopter, a wheeled robot (9), and a host computer (8); the quadcopter is provided with a controller (1), a near infrared water content analyzer, and a WiFi module that are used to measure water content in soil and communicate with the host computer; the wheeled robot (9) comprises a water sprinkling device (2), a soil grabbing device (3), a sifting device (4), a delivery device (5), a recognition device (6), and a sorting device (7).
    Type: Grant
    Filed: February 24, 2020
    Date of Patent: January 30, 2024
    Assignee: NANTONG UNIVERSITY
    Inventors: Liang Hua, Zeguang Zhang, Jiahan You, Yisheng Huang, Ping Lu
  • Publication number: 20240012195
    Abstract: A method and apparatus for inscribing a high-temperature stable Bragg grating in an optical waveguide, comprising the steps of: providing the optical waveguide; providing electromagnetic radiation from an ultrashort pulse duration laser, wherein the wavelength of the electromagnetic radiation has a characteristic wavelength in the wavelength range from 150 nanometers (nm) to 2.
    Type: Application
    Filed: December 4, 2020
    Publication date: January 11, 2024
    Inventors: Cyril HNATOVSKY, Nurmemet ABDUKERIM, Dan GROBNIC, Robert WALKER, Stephen MIHAILOV, Ping LU, Huimin DING, David COULAS, Kasthuri DE SILVA
  • Publication number: 20230418273
    Abstract: The system and method described allow for real-time control over positioning of a micro-object. A movement of at least one micro-object suspended in a medium can be induced by a generation of one or more forces by electrodes proximate to the micro-object. Prior to inducing the movement, a simulation is used to develop a model describing a parameter of an interaction between each of the electrodes and the micro-object. A function describing the forces generated by an electrode and an extent of the movement induced due to the forces is generated using the model. The function is used to design closed loop policy control scheme for moving the micro-object towards a desired position. The position of the micro-object is tracked and taken into account when generating voltage patterns in the scheme.
    Type: Application
    Filed: September 1, 2023
    Publication date: December 28, 2023
    Inventors: Ion Matei, Jeng Ping Lu, Saigopal Nelaturi, Julie A. Bert, Lara S. Crawford, Armin R. Volkel, Eugene M. Chow
  • Patent number: 11847920
    Abstract: A system and a method are provided for feasibility evaluation of UAV Digital Twin based on Vicon motion capture system is disclosed, which establishes a mission feasibility evaluation model according to flight history data of a target UAV acquired by the UAV Digital Twin system. The mission feasibility evaluation model includes a UAV trajectory prediction module and a mission feasibility determination module. The UAV trajectory prediction module acquires real-time position and attitude information of the target UAV according to the Vicon motion capture system, and predicts target flight trajectory of the target UAV according to the real-time position and attitude information. The mission feasibility determination module compares the position difference between an end point of the target flight trajectory and preset designated mission point to evaluate feasibility of target mission of the target UAV.
    Type: Grant
    Filed: October 12, 2021
    Date of Patent: December 19, 2023
    Inventors: Bin He, Gang Li, Zhipeng Wang, Yanmin Zhou, Ping Lu, Zhongpan Zhu, Yang Shen
  • Patent number: 11843684
    Abstract: An example method may include receiving, at a device, a first frame over a wireless network and constructing a preliminary data portion of a second frame. The second frame may be configured for transmission over the wireless network. The method may also include in response to the receiving of the first frame at the device, beginning transmission of a header portion of the second frame over the wireless network and after the beginning transmission of the header portion of the second frame, constructing, based on the preliminary data portion, a finalized data portion of the second frame for transmission over the wireless network.
    Type: Grant
    Filed: March 18, 2022
    Date of Patent: December 12, 2023
    Assignee: MaxLinear, Inc.
    Inventors: Huizhao Wang, Karthik Ramasubramanian, Denis Bykov, James Wood, Jun Jin, Lin Fang, Hongping Liu, Benjamin Mung, Ping Lu
  • Publication number: 20230384738
    Abstract: A time-to-digital converter (TDC) circuit generates a digital output indicating a time, known as a phase difference, from a phase of the generated signal to a corresponding phase of a reference signal. The digital output is used by the digitally controlled oscillator (DCO) to correct for the phase/frequency difference to synchronize the generated signal with the reference signal. In an aspect, an adaptive TDC circuit generates a first digital indication in a coarse mode when the offset time is above a threshold and generates a second digital indication in a fine mode when the offset time is below the threshold. The first digital indication and the second digital indication each comprise a same number of bits, and the first digital indication is normalized to the second digital indication for the digital output of the adaptive TDC circuit. A fractional bit may be employed to compensate for a quantization error.
    Type: Application
    Filed: May 31, 2022
    Publication date: November 30, 2023
    Inventors: Ping LU, Minhan CHEN
  • Publication number: 20230348578
    Abstract: The present disclosure provides antibodies or antigen-binding fragments thereof that specifically bind to the cis conformation of phosphorylated-Threonine231-Proline (pThr231-Pro) of tau protein. This disclosure also provides methods for treating a subject having or at risk of developing a neurological disorder. This disclosure includes related pharmaceutical compositions, polynucleotides, vectors, host cells, methods of production, methods of treatment, diagnostic methods, and kits.
    Type: Application
    Filed: September 2, 2021
    Publication date: November 2, 2023
    Inventors: Kun Ping LU, Xiao Zhen ZHOU
  • Patent number: 11793823
    Abstract: A compound of Formula (I): or a pharmaceutically acceptable salt thereof, in which Ring X is a 3 to 7 membered monocyclic ring, at least one of R1, R2, R3, and R4 is OR5 or CH2OR5 and the other R1, R2, R3, and R4 each independently are halogen, OH, OR5, CH2OR5, CO2H, OC?OR6, (C?O)R6, R6, C1-10 alkyl, C2-10 alkenyl, C2-10 alkynyl, H, or absent. Also provided herein are therapeutic uses of the compound of Formula (I).
    Type: Grant
    Filed: March 21, 2022
    Date of Patent: October 24, 2023
    Assignee: SyneuRx International (Taiwan) Corp.
    Inventors: Guochuan Emil Tsai, Yi-Wen Mao, Lu-Ping Lu, Wei-Hua Chang, Han-Yi Hsieh, Jhe Wei Hu, Tsai-Miao Shih, ChanHui Huang
  • Publication number: 20230333988
    Abstract: Aspects of the present disclosure configure a system component, such as a memory sub-system controller, to track a quantity of translational units stored for each of a plurality of namespaces on an individual namespace basis. To format a given one of the plurality of namespaces, the individually tracked quantity of translational units can be deducted from a global quantity tracked for each respective block of the memory sub-system.
    Type: Application
    Filed: April 18, 2022
    Publication date: October 19, 2023
    Inventors: Dahai Tian, Jing Ping Lu
  • Publication number: 20230333313
    Abstract: T-phase-shifted fiber Bragg gratings in optical waveguides, and methods of formation thereof. Sensing apparatus comprising such gratings using femtosecond pulse duration lasers and specialized transmission diffraction elements or phase masks.
    Type: Application
    Filed: June 8, 2023
    Publication date: October 19, 2023
    Inventors: Cyril HNATOVSKY, Dan GROBNIC, Stephen MIHAILOV, Robert WALKER, Ping LU, Huimin DING, David COULAS, Kasthuri DE SILVA
  • Patent number: 11779561
    Abstract: A method of treating coronavirus infection, comprising administering to a subject in need thereof an effective amount of a composition, wherein the composition comprises one or more compounds of Formula (I): or a pharmaceutically acceptable salt thereof.
    Type: Grant
    Filed: February 1, 2022
    Date of Patent: October 10, 2023
    Assignee: SyneuRx International (Taiwan) Corp.
    Inventors: Guochuan Emil Tsai, Yi-Wen Mao, Lu-Ping Lu, Wei-Hua Chang, Han-Yi Hsieh, Jhe Wei Hu, Tsai-Miao Shih, ChanHui Huang
  • Patent number: 11762348
    Abstract: Control loop latency can be accounted for in predicting positions of micro-objects being moved by using a hybrid model that includes both at least one physics-based model and machine-learning models. The models are combined using gradient boosting, with a model created during at least one of the stages being fitted based on residuals calculated during a previous stage based on comparison to training data. The loss function for each stage is selected based on the model being created. The hybrid model is evaluated with data extrapolated and interpolated from the training data to prevent overfitting and ensure the hybrid model has sufficient predictive ability. By including both physics-based and machine-learning models, the hybrid model can account for both deterministic and stochastic components involved in the movement of the micro-objects, thus increasing the accuracy and throughput of the micro-assembly.
    Type: Grant
    Filed: May 21, 2021
    Date of Patent: September 19, 2023
    Assignee: XEROX CORPORATION
    Inventors: Anne Plochowietz, Anand Ramakrishnan, Warren Jackson, Lara S. Crawford, Bradley Rupp, Sergey Butylkov, Jeng Ping Lu, Eugene M. Chow
  • Patent number: 11747796
    Abstract: The system and method described allow for real-time control over positioning of a micro-object. A movement of at least one micro-object suspended in a medium can be induced by a generation of one or more forces by electrodes proximate to the micro-object. Prior to inducing the movement, a simulation is used to develop a model describing a parameter of an interaction between each of the electrodes and the micro-object. A function describing the forces generated by an electrode and an extent of the movement induced due to the forces is generated using the model. The function is used to design closed loop policy control scheme for moving the micro-object towards a desired position. The position of the micro-object is tracked and taken into account when generating voltage patterns in the scheme.
    Type: Grant
    Filed: August 2, 2021
    Date of Patent: September 5, 2023
    Assignee: XEROX CORPORATION
    Inventors: Ion Matei, Jeng Ping Lu, Saigopal Nelaturi, Julie A. Bert, Lara S. Crawford, Armin R. Volkel, Eugene M. Chow
  • Patent number: 11739340
    Abstract: The present invention is directed to promoter sequences and promoter control elements, polynucleotide constructs comprising the promoters and control elements, and methods of identifying the promoters, control elements, or fragments thereof. The invention further relates to the use of the present promoters or promoter control elements to modulate transcript levels.
    Type: Grant
    Filed: July 24, 2020
    Date of Patent: August 29, 2023
    Assignee: Ceres, Inc.
    Inventors: Zhihong Cook, Yiwen Fang, Kenneth A. Feldmann, Edward Kiegle, Shing Kwok, Yu-Ping Lu, Leonard Medrano, Roger Pennell, Richard Schneeberger, Chuan-Yin Wu, Nestor Apuya, Jack K. Okamuro, Diane K. Jofuku, Jonathan Donson, David Van-Dinh Dang, Emilio Margolles-Clark, Nickolai Alexandrov, Tatiana Tatarinova, Noah Theiss, Danielle Grizard, Shawna Davis, Dennis Robles, Michael Portereiko
  • Patent number: 11726047
    Abstract: Materials, methods of making, and methods of sensing liquid droplets with high spatial resolution as a signature of the on-set of corrosion using a hierarchical sensor network A hierarchical sensor network for sensing liquid droplets with high spatial resolution as a signature of the on-set of corrosion, including an interrogation system; and an intermediate sensor array layer in communication with the interrogation system. The network includes an interrogation system and an intermediate sensor array layer in communication with the interrogation system.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: August 15, 2023
    Assignee: United States Department of Energy
    Inventors: Paul R Ohodnicki, Jr., Ping Lu, Ruishu Wright, Jagannath Devkota
  • Patent number: 11722140
    Abstract: A phase-locked loop (PLL) circuit generates an analog signal in phase-lock with a reference signal at a reference frequency. The PLL circuit includes a charge pump circuit, a loop filter circuit, a feedback divider, and a voltage controlled oscillator (VCO). The charge pump circuit charges a sample capacitor of the loop filter circuit to a sample voltage based on a phase difference between the generated analog signal and the reference signal. The loop filter circuit stores the sample voltage as a proportional control voltage in a hold capacitor to reduce or avoid ripple in the control voltage that causes jitter in the analog signal. The loop filter circuit also provides the sample voltage to an integral component circuit comprising a comparator and digital accumulator producing an integral control. The VCO generates the analog signal at a frequency based on the proportional control voltage and the integral control voltage.
    Type: Grant
    Filed: December 31, 2021
    Date of Patent: August 8, 2023
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Ping Lu, Charles Boecker, Bupesh Pandita
  • Publication number: 20230235390
    Abstract: The present invention provides a mass spectrometry-based method and a kit for genotyping of platelet and neutrophil antigens and glycoproteins, which are used for genotyping of platelet-specific antigens, platelet CD36 glycoproteins and neutrophil antigens; by designing an optimal primer combination, problems such as homologous sequences and rich GC are overcome, moreover, by improving amplification reaction conditions and using nucleic acid mass spectrometry as a platform, 35 platelet-specific antigen polymorphic sites, 10 CD36 polymorphic sites and 8 neutrophil antigen polymorphic sites can be simultaneously detected in 2 reactions. The present invention has the characteristics of high specificity and sensitivity, and fast and high throughput, and can be used in clinic, scientific research, platelet donor routine screening, etc.
    Type: Application
    Filed: January 19, 2023
    Publication date: July 27, 2023
    Inventors: Luyi YE, Huijun ZHU, Ruishu LI, Min FU, Ping LU, Ziyan ZHU
  • Patent number: 11703636
    Abstract: A solution is provided comprising boron nitride nanotubes (BNNTs) in a liquid solvent. An optical waveguide, such as an optical fiber, is contacted with the solution so as to form a layer of the solution supported on at least a portion of the optical waveguide. The liquid solvent is then removed from the layer of the solution supported on the optical waveguide in order to form a coating of the BNNTs on the optical waveguide. Further provided is a BNNT coated optical waveguide for use as a sensor.
    Type: Grant
    Filed: April 30, 2020
    Date of Patent: July 18, 2023
    Inventors: Jingwen Guan, Huimin Ding, Ping Lu, Stephen Mihailov, Benoit Simard