Patents by Inventor Meng Cao

Meng Cao 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: 11967291
    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated by a backlight unit that includes an array of light-emitting diodes (LEDs). The backlight unit may determine the type of content in the image data. The backlight unit may decide to prioritize either mitigating halo or mitigating clipping based on the type of content. The determination of the type of content in the image data may be used to determine the brightness values for the LEDs in the LED array. If the content is determined to be a first type of content, at least one given LED in the LED array may have a different brightness value than if the content is determined to be a second, different type of content. Classifying content in the image data may be useful in optimizing visible artifacts such as visible halo and clipping.
    Type: Grant
    Filed: June 2, 2023
    Date of Patent: April 23, 2024
    Assignee: Apple Inc.
    Inventors: Mohammad Tofighi, Meng Cao, Pierre-Yves Emelie, Duane M Petrovich, Shuo Han, Zhendong Hong, Tobias Jung, Marc Albrecht, Jiulong Shan, Wei H Yao
  • Patent number: 11940009
    Abstract: A bearing seal including an anchoring portion fixed on an inner ring of the bearing, and a sealing portion capable of forming a sealing fit with an outer ring of the bearing, the seal providing rigid slinger of substantially circular shape, the slinger having a root portion formed at a position corresponding to the anchoring portion for stabilization and support, and a radial portion formed in the section corresponding to the area between the anchoring portion and the sealing portion for radial support, wherein the radial portion is formed with at least one slot with the opening direction facing the radial periphery.
    Type: Grant
    Filed: July 11, 2022
    Date of Patent: March 26, 2024
    Assignee: Aktiebolaget SKF
    Inventors: Meng Zhang, Keqiang Cao, Yi Zhang, He Zhu
  • Publication number: 20240077108
    Abstract: A cage includes a first sub-part having a plurality of first partitions integrated as a whole and a plurality of first pocket portions formed by adjacent first partitions. A second sub-part has a plurality of second partitions integrated as a whole and a plurality of second pocket portions formed by adjacent second partitions. A first recess is provided on the first partition belonging to a first set of the plurality of first partitions. A second pin extends along an axial direction from the second partition belonging to a second set of the plurality of second partitions. The second pin is fixed in its corresponding first recess. The first set of first partitions includes any one or more of the plurality of first partitions. The second set of second partitions includes any one or more of the plurality of second partitions and correspond to the first set of first partitions respectively.
    Type: Application
    Filed: August 30, 2023
    Publication date: March 7, 2024
    Inventors: Keqiang CAO, Gaojie JIANG, Meng ZHANG, He ZHU
  • Publication number: 20240077112
    Abstract: A cage includes a first sub-part having a plurality of first partitions integrated as a whole and a plurality of first pocket portions formed by adjacent first partitions. A first engaging portion is formed on at least one of the first partitions. A second sub-part includes a plurality of second partitions integrated as a whole and a plurality of second pocket portions formed by adjacent second partitions. A second engaging portion is formed on at least one of the second partitions. A pocket is formed by the first pocket portion and its corresponding second pocket portion. Each first engaging portion snaps with its corresponding second engaging portion. The cage overcomes the harmful umbrella effect found in a one-piece polymer prong-type cage, so that the bearing equipped with this cage can operate under very high speeds. The cage can be part of a ball bearing.
    Type: Application
    Filed: August 29, 2023
    Publication date: March 7, 2024
    Inventors: Gaojie JIANG, Keqiang Cao, Meng Zhang, He Zhu
  • Patent number: 11913420
    Abstract: An anchoring device for adapting to tide level for a wave energy power generation device comprises: a housing, wherein a central main shaft is provided at the center thereof, two ends of the central main shaft are respectively rigidly connected to a volute spring, and the interior of the housing is divided into several independent compartments, including a central compartment accommodating the central main shaft; a shaft lock and a central main gear capable of driving the central main shaft to rotate mounted on the central main shaft; and a plurality of hoisting wheel compartments arranged at equal intervals in a circumferential array around the central main shaft. A hoisting wheel is provided in each of the hoisting wheel compartments, and an anchor chain wound on the hoisting wheel protrudes out of the housing through an opening at the bottom of the hoisting wheel compartment.
    Type: Grant
    Filed: January 10, 2020
    Date of Patent: February 27, 2024
    Assignee: OCEAN UNIVERSITY OF CHINA
    Inventors: Feifei Cao, Hongda Shi, Meng Han, Xiaoqiang Jiang, Ziyue Zhong, Yilin Pan, Haozhe Bai, Zhen Liu, Ji Tao
  • Patent number: 11901592
    Abstract: The invention provides an SOFC cooling system. For the feature that not all components work in the full operation process of an SOFC, a DC step-down transformer DCDC, a fan and a condenser are connected in parallel, and a solenoid valve is installed in each parallel pipeline for controlling on/off of each pipeline according to a corresponding signal. Compared with the traditional SOFC cooling system, the constant-flow serial cooling system will reduce pressure losses and the power of a water pump; a solenoid valve is installed in each parallel pipeline for controlling on/off of each branch according to a corresponding signal; considering the cooling requirements of SOFC during start-up, power generation and shutdown, all components are cooled in parallel through reasonable design of each parallel pipeline, consequently to improve the cooling effect and reduce the energy consumption; the invention also discloses a fuel cell and hybrid vehicle.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: February 13, 2024
    Assignee: Ceres Intellectual Property Company Limited
    Inventors: Longkai Jiang, Youpeng Chen, Weilong Song, Yaxin Du, Meng Cao
  • Publication number: 20220407091
    Abstract: The invention provides an SOFC cooling system. For the feature that not all components work in the full operation process of an SOFC, a DC step-down transformer DCDC, a fan and a condenser are connected in parallel, and a solenoid valve is installed in each parallel pipeline for controlling on/off of each pipeline according to a corresponding signal. Compared with the traditional SOFC cooling system, the constant-flow serial cooling system will reduce pressure losses and the power of a water pump; a solenoid valve is installed in each parallel pipeline for controlling on/off of each branch according to a corresponding signal; considering the cooling requirements of SOFC during start-up, power generation and shutdown, all components are cooled in parallel through reasonable design of each parallel pipeline, consequently to improve the cooling effect and reduce the energy consumption; the invention also discloses a fuel cell and hybrid vehicle.
    Type: Application
    Filed: September 30, 2020
    Publication date: December 22, 2022
    Inventors: Longkai Jiang, Youpeng Chen, Weilong Song, Yaxin Du, Meng Cao
  • Publication number: 20220376274
    Abstract: A cold-hot component support structure, comprising a base and a connected support connected on the base by a bolt, wherein a bolt mounting hole is provided on the connected support, and an upper end face and a lower end face of the connected support are provided with an upper heat insulation block and a lower heat insulation block respectively. The lower heat insulation block is provided with a limit hole connecting the bolt mounting hole, and the upper heat insulation block is extended with a limit sleeve inserted in the limit hole. The supported support is clamped between the upper heat insulation block and the lower heat insulation block by an insertion structure between the upper heat insulation block and the lower heat insulation block, and an inner wall of a bolt hole on the connected support is insulated by the limit sleeve, so as to realize effective heat insulation of the connected support and reduce heat loss of the connected support.
    Type: Application
    Filed: September 30, 2020
    Publication date: November 24, 2022
    Inventors: Chunlei Gao, Hongmin Cao, Meng Cao, Yi Zhang
  • Publication number: 20210126254
    Abstract: An electrochemically active material includes an alloy represented by general formula (I): SiaTibOcNdMe, (I) where a, b, c, d, and e represent atomic % values, a+b+c+d+e=100, M includes carbon or a transition metal element other than titanium, a>20, a+b+e?c+d, c?0, d>5, e?0, and a/b>0.5. The alloy includes a transition metal silicide, titanium nitride, or titanium oxynitride phase, and the phase has a Schemer grain size that is greater than 2 nm and less than 10 nm.
    Type: Application
    Filed: April 12, 2019
    Publication date: April 29, 2021
    Inventors: Mark N. OBROVAC, Yukun WANG, Si-meng CAO
  • Patent number: 10925912
    Abstract: The invention discloses a ginseng-derived nanoparticle and a preparation method and application thereof. The ginseng-derived nanoparticle disclosed in the invention has a membrane structure, a particle size ranging from 150 to 500 nm and a peak particle size of 280 to 350 nm; and the ginseng-derived nanoparticle is prepared by multiple centrifugation, filtration and impurity removal. The ginseng-derived nanoparticle has good application prospects in developing drugs for preparing natural immunopotentiators and for preparing natural anti-tumor drugs.
    Type: Grant
    Filed: June 19, 2017
    Date of Patent: February 23, 2021
    Assignee: JIANGSU PROVINCE INSTITUTE OF TRADITIONAL CHINESE MEDICINE
    Inventors: Peng Cao, Meng Cao, Huaijiang Yan
  • Patent number: 10895810
    Abstract: Embodiments include automatic selection of sample values for optical metrology. An embodiment of a method includes providing a library parameter space for modeling of a diffracting structure using an optical metrology system; automatically determining by a processing unit a reduced sampling set from the library parameter space, wherein the reduced space is based on one or both of the following recommending a sampling shape based on an expected sample space usage, or recommending a sampling filter based on correlation between two or more parameters of the library parameter space; and generating a library for the optical metrology system using the reduced sampling set.
    Type: Grant
    Filed: November 15, 2014
    Date of Patent: January 19, 2021
    Assignee: KLA Corporation
    Inventors: Meng Cao, Leonid Poslavsky, Inkyo Kim, Lie-Quan Lee
  • Patent number: 10732520
    Abstract: Methods and systems for optimizing a set of measurement library control parameters for a particular metrology application are presented herein. Measurement signals are collected from one or more metrology targets by a target measurement system. Values of user selected parameters of interest are resolved by fitting a pre-computed measurement library function to the measurement signals for a given set of library control parameters. Values of one or more library control parameters are optimized such that differences between the values of the parameters of interest estimated by the library based measurement and reference values associated with trusted measurements of the parameters of interest are minimized. The optimization of the library control parameter values is performed without recalculating the pre-computed measurement library.
    Type: Grant
    Filed: May 20, 2019
    Date of Patent: August 4, 2020
    Assignee: KLA Tencor Corporation
    Inventors: Meng Cao, Lie-Quan Lee, Qiang Zhao, Heyin Li, Mengmeng Ye
  • Publication number: 20200016223
    Abstract: The invention discloses a ginseng-derived nanoparticle and a preparation method and application thereof. The ginseng-derived nanoparticle disclosed in the invention has a membrane structure, a particle size ranging from 150 to 500 nm and a peak particle size of 280 to 350 nm; and the ginseng-derived nanoparticle is prepared by multiple centrifugation, filtration and impurity removal. The ginseng-derived nanoparticle has good application prospects in developing drugs for preparing natural immunopotentiators and for preparing natural anti-tumor drugs.
    Type: Application
    Filed: June 19, 2017
    Publication date: January 16, 2020
    Inventors: Peng CAO, Meng CAO, Huaijiang YAN
  • Patent number: 10502692
    Abstract: Methods and systems for evaluating and ranking the measurement efficacy of multiple sets of measurement system combinations and recipes for a particular metrology application are presented herein. Measurement efficacy is based on estimates of measurement precision, measurement accuracy, correlation to a reference measurement, measurement time, or any combination thereof. The automated the selection of measurement system combinations and recipes reduces time to measurement and improves measurement results. Measurement efficacy is quantified by a set of measurement performance metrics associated with each measurement system and recipe. In one example, the sets of measurement system combinations and recipes most capable of measuring the desired parameter of interest are presented to the user in rank order based on corresponding values of one or more measurement performance metrics. A user is able to select the appropriate measurement system combination in an objective, quantitative manner.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: December 10, 2019
    Assignee: KLA-Tencor Corporation
    Inventors: Meng Cao, Lie-Quan Lee, Qiang Zhao, Heyin Li, Mengmeng Ye
  • Patent number: 10345721
    Abstract: Methods and systems for optimizing a set of measurement library control parameters for a particular metrology application are presented herein. Measurement signals are collected from one or more metrology targets by a target measurement system. Values of user selected parameters of interest are resolved by fitting a pre-computed measurement library function to the measurement signals for a given set of library control parameters. Values of one or more library control parameters are optimized such that differences between the values of the parameters of interest estimated by the library based measurement and reference values associated with trusted measurements of the parameters of interest are minimized. The optimization of the library control parameter values is performed without recalculating the pre-computed measurement library.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: July 9, 2019
    Assignee: KLA-Tencor Corporation
    Inventors: Meng Cao, Lie-Quan Lee, Qiang Zhao, Heyin Li, Mengmeng Ye
  • Patent number: 10190868
    Abstract: A metrology system, method, and computer program product that employ automatic transitioning between utilizing a library and utilizing regression for measurement processing are provided. In use, it is determined, by the metrology system, that a predetermined condition has been met. In response to determining that the predetermined condition has been met, the metrology system automatically transitions between utilizing a library and utilizing regression for measurement processing.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: January 29, 2019
    Assignee: KLA-Tencor Corporation
    Inventors: Liequan Lee, Raphael Jean Michel Marie Getin, Meng Cao, Leonid Poslavsky, Torsten Rudolf Kaack, Hong Qiu
  • Publication number: 20170023491
    Abstract: Methods and systems for evaluating and ranking the measurement efficacy of multiple sets of measurement system combinations and recipes for a particular metrology application are presented herein. Measurement efficacy is based on estimates of measurement precision, measurement accuracy, correlation to a reference measurement, measurement time, or any combination thereof. The automated the selection of measurement system combinations and recipes reduces time to measurement and improves measurement results. Measurement efficacy is quantified by a set of measurement performance metrics associated with each measurement system and recipe. In one example, the sets of measurement system combinations and recipes most capable of measuring the desired parameter of interest are presented to the user in rank order based on corresponding values of one or more measurement performance metrics. A user is able to select the appropriate measurement system combination in an objective, quantitative manner.
    Type: Application
    Filed: May 27, 2016
    Publication date: January 26, 2017
    Inventors: Meng Cao, Lie-Quan Lee, Qiang Zhao, Heyin Li, Mengmeng Ye
  • Publication number: 20160322267
    Abstract: Disclosed are apparatus and methods for characterizing a plurality of structures of interest on a semiconductor wafer. A plurality of models having varying combinations of floating and fixed critical parameters and corresponding simulated spectra is generated. Each model is generated to determine one or more critical parameters for unknown structures based on spectra collected from such unknown structures. It is determined which one of the models best correlates with each critical parameter based on reference data that includes a plurality of known values for each of a plurality of critical parameters and corresponding known spectra. For spectra obtained from an unknown structure using a metrology tool, different ones of the models are selected and used to determine different ones of the critical parameters of the unknown structure based on determining which one of the models best correlates with each critical parameter based on the reference data.
    Type: Application
    Filed: July 7, 2016
    Publication date: November 3, 2016
    Applicant: KLA-Tencor Corporation
    Inventors: In-Kyo Kim, Xin Li, Leonid Poslavsky, Liequan Lee, Meng Cao, Sungchul Yoo, Andrei V. Shchegrov, Sangbong Park
  • Publication number: 20160320315
    Abstract: A metrology system, method, and computer program product that employ automatic transitioning between utilizing a library and utilizing regression for measurement processing are provided. In use, it is determined, by the metrology system, that a predetermined condition has been met. In response to determining that the predetermined condition has been met, the metrology system automatically transitions between utilizing a library and utilizing regression for measurement processing.
    Type: Application
    Filed: August 13, 2015
    Publication date: November 3, 2016
    Inventors: Liequan Lee, Raphael Jean Michel Marie Getin, Meng Cao, Leonid Poslavsky, Torsten Rudolf Kaack, Hong Qiu
  • Patent number: 9412673
    Abstract: Disclosed are apparatus and methods for characterizing a plurality of structures of interest on a semiconductor wafer. A plurality of models having varying combinations of floating and fixed critical parameters and corresponding simulated spectra is generated. Each model is generated to determine one or more critical parameters for unknown structures based on spectra collected from such unknown structures. It is determined which one of the models best correlates with each critical parameter based on reference data that includes a plurality of known values for each of a plurality of critical parameters and corresponding known spectra. For spectra obtained from an unknown structure using a metrology tool, different ones of the models are selected and used to determine different ones of the critical parameters of the unknown structure based on determining which one of the models best correlates with each critical parameter based on the reference data.
    Type: Grant
    Filed: August 14, 2014
    Date of Patent: August 9, 2016
    Assignee: KLA-Tencor Corporation
    Inventors: In-Kyo Kim, Xin Li, Leonid Poslavsky, Liequan Lee, Meng Cao, Sungchul Yoo, Andrei V. Shchegrov, Sangbong Park