Patents by Inventor Lei Ma

Lei Ma 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: 20230160347
    Abstract: A hybrid electric propulsion system includes a gas turbine engine having at least one compressor section and at least one turbine section operably coupled to a shaft. The hybrid electric propulsion system includes an electric motor configured to augment rotational power of the shaft of the gas turbine engine. A controller is operable to determine hybrid electric propulsion system parameters based on a composite system model and sensor data, determine a prediction based on the hybrid electric propulsion system parameters and the composite system model, determine a model predictive control optimization for a plurality of hybrid electric system control effectors based on the prediction using a plurality of reduced-order partitions of the composite system model, and actuate the hybrid electric system control effectors based on the model predictive control optimization.
    Type: Application
    Filed: January 12, 2023
    Publication date: May 25, 2023
    Inventors: Timothy J. Crowley, Sorin Bengea, Manuj Dhingra, David Gelwan, Kevin Hendricks, Joshua Adams, Martin Richard Amari, Richard P. Meisner, David Lei Ma
  • Publication number: 20230137379
    Abstract: A display method is provided. The display method includes: obtaining information of a target display array on a display device, the target display array including a first number of display units arranged; obtaining target pulse sequences that characterize dynamic spatiotemporal information; determining display state information of each display unit in the first number of display units from a spatiotemporal relationship between the target pulse sequences and the target display array; and causing visualization of pulse signals in the target pulse sequences on the display device based on the display state information of each display unit in the first number of display units.
    Type: Application
    Filed: December 27, 2022
    Publication date: May 4, 2023
    Applicant: SPIKE VISION (BEIJING) TECHNOLOGY CO., LTD.
    Inventors: Tiejun HUANG, Lei MA
  • Publication number: 20230103396
    Abstract: The present disclosure provides a bone conduction based sound generating lollipop, a processing method and a system thereto. The bone conduction based sound generating lollipop includes a housing, a trigger, a controller and a sound generating component. The sound generating component, the controller and the trigger are integrated in a packaging cavity formed by the housing, and a separate packaging of the sound generating component is eliminated. When a supporting component of the housing enters a human oral cavity, the trigger sends an opening instruction to the controller, the controller drives the sound generating component to vibrate, and then a vibration signal is transmitted to a human auditory system in a bone conduction manner after passing through the supporting component of the housing and an edible object attached to the supporting component, and passing through an oral tissue or teeth of the human body.
    Type: Application
    Filed: December 2, 2022
    Publication date: April 6, 2023
    Inventors: LEI MA, JIA HONG MA, MI LE ZHANG, YAU MING CHIU
  • Publication number: 20230104617
    Abstract: Provided in the present invention are a compound as shown in formula I, various crystal forms thereof, a hydrate, a solvate or a pharmaceutically acceptable salt thereof, and a pharmaceutical composition. The compound of the present invention can effectively treat Alzheimer's disease or Down's syndrome, especially cognitive function impairment caused by Alzheimer's disease or Down's syndrome. Also disclosed in the present invention is use of a ubiquitin specific protease USP25 encoded and expressed by chromosome 21 for preventing, treating or ameliorating Alzheimer's disease or Down's syndrome.
    Type: Application
    Filed: January 21, 2021
    Publication date: April 6, 2023
    Inventors: Xin WANG, Lei MA, Jianjun FU, Qiuyang ZHENG, Licheng ZHOU, Qingfang DENG, Ximeng SHI, Guilin LI, Shihua WANG, Anjie DI
  • Patent number: 11621209
    Abstract: Disclosed is a semiconductor device such as a power amplifier. Unlike conventional power amplifiers, thermal bump is patterned to only cover active devices. In this way, dimensions of the semiconductor device can be reduced.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: April 4, 2023
    Assignee: QUALCOMM Incorporated
    Inventors: Lei Ma, Wenyue Lydia Zhang, Antonino Scuderi, William Clinton Burling Peatman
  • Publication number: 20230099026
    Abstract: The present disclosure provides a bone conduction-based clamping device and processing method. The device includes a handle, a clamping structure provided on one side of the handle, and a sound generating processor provided inside the handle. A user puts food into his mouth cavity by clamping the food with the clamping structure, and a vibration signal generated by the sound generating processor is transmitted to the food by the clamping structure and then transmitted to the user’s auditory system by an oral tissue or teeth of the user, thereby avoiding the pressing feeling caused by wearing in a pressing manner. Putting the clamping structure into the user’s mouth cavity can also reduce sound leakage, improve sound quality and protect privacy. In addition, the food can be replaced by the clamping structure, thereby guaranteeing hygiene and health, improving the usage rate of the device, and realizing multi-user sharing.
    Type: Application
    Filed: December 1, 2022
    Publication date: March 30, 2023
    Inventors: LEI MA, JIA HONG MA, MI LE ZHANG, YAU MING CHIU
  • Publication number: 20230101898
    Abstract: Provided in the present disclosure are an integrated bone conduction sound generating device and method. The device includes a controller, a sound generating structure and a functional structure, and the three components are integrated together. The functional structure can touch the oral cavity and/or the teeth of the human body, and after the controller drives the sound generating structure to generate a vibration signal, the functional structure can transmit the vibration signal to the auditory system of the human body through the oral cavity and/or the teeth of the human body.
    Type: Application
    Filed: December 1, 2022
    Publication date: March 30, 2023
    Inventors: LEI MA, JIAHONG MA, MILE ZHANG, Yauming CHIU
  • Patent number: 11604843
    Abstract: According to one embodiment, a first phrase having one or more keywords is received to be added to a phrase blacklist, where the first phrase has been determined to be related to unwanted content. An analysis is performed on the keywords of the first phrase to identifying a set of one or more related phrases that are related to the first phrase. The first phrase and the set of related phrases are added in the phrase blacklist. The phrase blacklist contains a plurality of phrases that have been determined to be related to unwanted content. The phrase blacklist is utilized to prevent a content item from appearing in a search result, in response to a search query having a phrase matching at least one of the phrases in the phrase backlist.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: March 14, 2023
    Assignees: BAIDU USA LLC, BAIDU.COM TIMES TECHNOLOGY (BEIJING) CO., LTD.
    Inventors: Dong Li, Lei Ma, Guang Yang, Deping Xie
  • Publication number: 20230054893
    Abstract: Disclosed is a semiconductor device such as a power amplifier. Unlike conventional power amplifiers, thermal bump is patterned to only cover active devices. In this way, dimensions of the semiconductor device can be reduced.
    Type: Application
    Filed: August 17, 2021
    Publication date: February 23, 2023
    Inventors: Lei MA, Wenyue Lydia ZHANG, Antonino SCUDERI, William Clinton Burling PEATMAN
  • Patent number: 11555455
    Abstract: A hybrid electric propulsion system includes a gas turbine engine having at least one compressor section and at least one turbine section operably coupled to a shaft. The hybrid electric propulsion system includes an electric motor configured to augment rotational power of the shaft of the gas turbine engine. A controller is operable to determine an estimate of hybrid electric propulsion system parameters based on a composite system model and sensor data, determine a model predictive control state and a prediction based on the hybrid electric propulsion system parameters and the composite system model, determine a model predictive control optimization for a plurality of hybrid electric system control effectors based on the model predictive control state and the prediction using a plurality of reduced-order partitions of the composite system model, and actuate the hybrid electric system control effectors based on the model predictive control optimization.
    Type: Grant
    Filed: February 6, 2020
    Date of Patent: January 17, 2023
    Assignee: RAYTHEON TECHNOLOGIES CORPORATION
    Inventors: Timothy J. Crowley, Sorin Bengea, Manuj Dhingra, David Gelwan, Kevin Hendricks, Joshua Adams, Martin Richard Amari, Richard P. Meisner, David Lei Ma
  • Publication number: 20220413522
    Abstract: To make it possible to incorporate a fluid resistance element into a flow path through which a fluid flows without difficulty while enjoying advantages from forming a resistance flow path using ceramic, provided is a fluid resistance element including: a ceramic flow path forming member having one or a plurality of resistance flow paths; and a metal covering member covering an outer peripheral face of the flow path forming member.
    Type: Application
    Filed: October 23, 2020
    Publication date: December 29, 2022
    Inventors: Tadahiro YASUDA, Andrew PRICE, Lei MA
  • Patent number: 11523068
    Abstract: This disclosure provides systems, methods, and apparatuses for high dynamic range (HDR) processing. In one aspect, an example HDR processing device may process a first exposure frame and a second exposure frame during a first capture sequence. The device may also generate a first HDR image from the first exposure frame and the second exposure frame at an end of the first capture sequence. The device may also process a third exposure frame during a second capture sequence that at least partially overlaps in time with the first capture sequence. The device may also generate a second HDR image from the second exposure frame and the third exposure frame.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: December 6, 2022
    Assignee: QUALCOMM Incorporated
    Inventors: Yihe Yao, Lei Ma
  • Patent number: 11519289
    Abstract: A hybrid electric gas turbine engine includes a fan section having a fan, a turbine section having a turbine drivably connected to the fan through a main shaft that extends along a central longitudinal axis, a gas generating core extending along a first axis that is radially offset from the central longitudinal axis, and an electric motor drivably connected to the main shaft, wherein the electric motor is colinear with the main shaft.
    Type: Grant
    Filed: December 6, 2019
    Date of Patent: December 6, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Gabriel L. Suciu, Om P. Sharma, Joseph B. Staubach, Marc J. Muldoon, Jesse M. Chandler, David Lei Ma
  • Publication number: 20220326024
    Abstract: A positioning method includes calculating, based on data that is of collection points at a road edge and that is collected by a radar, a feature of a road on which a terminal device is actually located, determining, from a plurality of candidate roads based on the feature of the road on which the terminal device is actually located and features of the plurality of candidate roads, a target road matching original positioning coordinates of the terminal device, and correcting the original positioning coordinates using the target road, to obtain corrected positioning coordinates.
    Type: Application
    Filed: June 28, 2022
    Publication date: October 13, 2022
    Inventors: Minzhen Li, Lei Ma, Jun Wang
  • Patent number: 11391575
    Abstract: A positioning method includes calculating, based on data that is of collection points at a road edge and that is collected by a radar, a feature of a road on which a terminal device is actually located, determining, from a plurality of candidate roads based on the feature of the road on which the terminal device is actually located and features of the plurality of candidate roads, a target road matching original positioning coordinates of the terminal device, and correcting the original positioning coordinates using the target road, to obtain corrected positioning coordinates.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: July 19, 2022
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Minzhen Li, Lei Ma, Jun Wang
  • Publication number: 20220205729
    Abstract: Embodiments of this application provide a heat exchanger, a modular indirect evaporation cooling system, and a method for controlling a modular indirect evaporation cooling system, and relate to the field of indirect cooling technologies, to improve cooling efficiency of the modular indirect evaporation cooling system. The heat exchanger includes a first heat exchange core and a second heat exchange core. The first heat exchange core includes a first heat exchange fin and a first seal, where two first seals are disposed opposite to each other and are separately connected to the first heat exchange fin in an intersected manner. The second heat exchange core includes a second heat exchange fin, a second seal, and a heat exchange medium permeability channel, where two second seals are opposite to each other and are separately connected to the second heat exchange fin in an intersected manner.
    Type: Application
    Filed: December 27, 2021
    Publication date: June 30, 2022
    Inventors: Jinliang SONG, Lei MA
  • Publication number: 20220174198
    Abstract: An electronic device includes a camera and a position detection component arranged in an accommodating cavity. The position detection component includes a circuit board, a bracket, a first magnet, and a Hall sensor. The camera of the electronic device is arranged on the bracket, and the camera can stretch out of or retract into the accommodating cavity constituted by a housing. The Hall sensor includes a first working surface and a second working surface which respectively extend in different directions. The Hall sensor senses a magnetic field of the first magnet through the first working surface and the second working surface and generates induction signals. The induction signals are used to determine a stretching-out position and a retracting position of the camera.
    Type: Application
    Filed: March 27, 2020
    Publication date: June 2, 2022
    Applicant: Honor Device Co., Ltd.
    Inventors: Xing WANG, Lei MA, Beihang ZHANG, Hongda CHEN
  • Patent number: 11346290
    Abstract: A control system for limiting a power turbine torque of a gas turbine engine is disclosed. In various embodiments, the control system includes an engine control module configured to output an effector command signal to a gas generator of the gas turbine engine; a power turbine governor module configured to output to the engine control module a power turbine torque request signal; and a power turbine torque limiter module configured to output to the power turbine governor module a power turbine speed rate signal to limit a power turbine speed overshoot of the gas turbine engine.
    Type: Grant
    Filed: February 21, 2020
    Date of Patent: May 31, 2022
    Assignee: Raytheon Technologies Corporation
    Inventors: Chaohong Cai, Richard P. Meisner, Timothy J. Crowley, David Lei Ma
  • Publication number: 20220160892
    Abstract: A composition includes a photon upconversion nanoparticle coupled to a photosensitizer nanoparticle that can absorb light and convert tissue oxygen into reactive oxygen species. A low temperature hydrothermal method of making photon upconversion nanoparticles includes dispersing Yb(NO3)3, Y(NO3)3, and Er(NO3)3 in water to prepare a mixture; adding an ethylenediaminetetraacetic acid and NaF with sonication to make a solution; adjusting a pH of the solution to approximately 3.5 using HNO3 and NaOH; treating the solution hydrothermally at approximately 130° C. for approximately 4 hours; quenching to approximately 20° C.; collecting and washing the photon upconversion nanoparticles.
    Type: Application
    Filed: November 24, 2021
    Publication date: May 26, 2022
    Inventors: XiuJun Li, Luis A. Echegoyen, Lei Ma
  • Publication number: 20220122832
    Abstract: The present invention provides a control method to epitaxial growth monolayer graphene, in which a monolayer graphene is epitaxially grown on a non-polar crystal face at arbitrary angle of a non-polar crystal face SiC substrate, thereby utilizing the non-polar crystal face to manipulate the electrical transport properties of graphene. A monolayer graphene having ballistic transport properties can be epitaxially grown at arbitrary angle of non-polar crystal face SiC substrate by the above-mentioned control method.
    Type: Application
    Filed: February 28, 2019
    Publication date: April 21, 2022
    Inventors: Lei MA, Walter Alexander DE HEER, Peixuan JI, Kaimin ZHANG, Jian ZHAO, Mei ZHAO