Patents by Inventor Chao Ma

Chao 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: 20210060703
    Abstract: The present invention provides a device and method for forming a ceramic-reinforced metal matrix composite (MMC) by follow-up ultrasonic-assisted direct laser deposition (DLD), and belongs to the technical field of additive manufacturing (AM). A positioning and clamping device is used to keep an ultrasonic impact gun to follow a coaxial powder feeding nozzle. During the DLD process of the ceramic-reinforced MMC, the cavitation, acoustic flow and mechanical and thermal effects of an ultrasound are used to intervene in a solidification behavior of a molten pool in real time, and a localized strengthening effect of an ultrasonic impact is used to adjust a stress in real time. Compared with a DLD forming method without follow-up ultrasound application, the method of the present invention effectively reduces the voids inside a workpiece, and ensures the consistency of a solidified structure and the evenness of stress distribution.
    Type: Application
    Filed: April 24, 2020
    Publication date: March 4, 2021
    Inventors: Guangyi MA, Yang LI, Dongjiang WU, Fangyong NIU, Chao YU
  • Publication number: 20210060720
    Abstract: A method for monitoring chatter in a machining process includes the following steps: collecting an original signal related to chatter in the machining process; for the original signal, obtaining a signal segment for calculation and analysis by updating data points in a sliding window with a set step-length, where the step-length refers to a number of data points updated every time in the sliding window, and is not greater than the size of the sliding window; calculating fractal dimensions of the signal segments in the sliding window by using a fractal algorithm; and comparing the calculated fractal dimension with an identification threshold to determine whether chatter occurs in the machining process. The measured signal does not need to be preprocessed by using the method, which can greatly improve calculation efficiency and can ensure accuracy of chatter identification.
    Type: Application
    Filed: September 7, 2020
    Publication date: March 4, 2021
    Inventors: Feng FENG, Chao XU, Xueyu MEI, Pingfa FENG, Yuan MA
  • Publication number: 20210063044
    Abstract: A method of judging lack-of-freon in an air conditioner and an air conditioner control method. The control method includes: acquiring outflow air temperatures at the first air outlet and the second air outlet, and calculating a temperature difference; comparing the temperature difference with a preset temperature difference threshold; and adjusting an opening degree of the expansion valve accordingly. In the method, the opening degree of the expansion valve can be automatically adjusted according to a result of temperature comparison to compensate for the flow rate of freon, so as to improve the cooling or heating efficiency of the air conditioning system and realize the adaptive adjustment of the air conditioner, thereby ensuring the cooling or heating efficiency of the system even if the system lacks freon to a slight extent and effectively reducing energy consumption. The judging method has a higher accuracy of judging result, and is easier to implement.
    Type: Application
    Filed: August 9, 2019
    Publication date: March 4, 2021
    Applicants: Qingdao Haier Air-conditioning Electronic Co., Ltd, Haier Smart Home Co., Ltd.
    Inventors: Kun YANG, Yunhua MA, Longling GE, Yanyao LEI, Chao SUN, Changyou XIONG, Zhiyang GAO, Yabin SUI, Zhigao CAO, Shouyu LIU
  • Patent number: 10939263
    Abstract: A multi-network convergence method and device are provided by the present disclosure. The method includes that: network information of multiple vehicular networks and service information born by each vehicular network are acquired; whether the at least one service born by a first vehicular network coexists with the at least one service born by the other vehicular networks or not is determined according to the service information, and the first vehicular network is any one of the multiple vehicular networks; and at least one vehicular network set with coexisting services is acquired according to a determination result, and the vehicular network set is a set including at least one vehicular network with the same service feature type.
    Type: Grant
    Filed: October 31, 2017
    Date of Patent: March 2, 2021
    Assignee: CRRC QINGDAO SIFANG CO., LTD.
    Inventors: Fengchao Wang, Tai Liu, Jingting Lu, Jun Wang, Chao Ma, Yuwen Liu
  • Patent number: 10933608
    Abstract: A surfacing material includes a substrate having a top side and a bottom side. A matte surface is formed on the bottom side thereof, wherein the matte surface of the surfacing material is a coating of an electron beam radiation curable material applied to the bottom side of the substrate. The coating is an epoxy acrylic or urethane acrylic laid upon the substrate. The epoxy acrylic or urethane acrylic is irradiated with UV-radiation to produce a UV-radiation layer wherein the epoxy acrylic or urethane acrylic is neither hardened nor is an entire layer of the epoxy acrylic or urethane acrylic crosslinked but rather the epoxy acrylic or urethane acrylic only crosslinked on the surface thereof, which produces a matting surface through the effects of a micro-convolution.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: March 2, 2021
    Assignee: Wilsonart LLC
    Inventors: Muyuan M Ma, Rajesh Ramamurthy, Jin Chao
  • Publication number: 20210054402
    Abstract: An insect-resistant herbicide-tolerant corn transformation event, and a related creation method, a detection method, and application thereof are provided herein. Using the corn inbred line Xiang 249 as a receptor, by means of agrobacterium-mediated genetic transformation, obtaining a corn plant with an exogenous gene insert inserted at a specific genomic locus, the exogenous gene insert comprising the following three genes: an insect-resistant gene, a glufosinate resistant gene, and a glyphosate resistant gene. In the obtained transformation event, the inserted exogenous genes are positioned at a non-functional locus of the corn genome, and do not affect the expression of the other genes of the receptor plant, such that the transgenic corn plant maintains good agronomic traits whilst acquiring insect resistance and herbicide tolerance.
    Type: Application
    Filed: February 2, 2019
    Publication date: February 25, 2021
    Applicant: CHINA NATIONAL SEED GROUP CORPORATION, LTD.
    Inventors: BOLIN LIU, QIUMING SHE, CHAO TAN, JIETING XU, XUXIA WANG, PEIXIUZI TIAN, DONGMING NIE, YU HAN, CHONGLIE MA, WANGGEN ZHANG
  • Publication number: 20210042912
    Abstract: The present invention discloses a method, apparatus and system for detecting a fundus image on the basis of machine learning. The method comprises: acquiring a fundus image to be detected; classifying the entire region of the fundus image by using a first classification model to determine whether the fundus image contains a first feature; and if the fundus image does not contain any first feature, classifying a specific region in the fundus image by using at least one second classification model to determine whether the fundus image contains any second feature, wherein the saliency of the first features are greater than that of the second features.
    Type: Application
    Filed: April 25, 2019
    Publication date: February 11, 2021
    Inventors: Xin Zhao, JianHao Xiong, ShuLei Li, YongPei Ma, Chao He, Dalei Zhang
  • Publication number: 20210034142
    Abstract: The present disclosure provides an electronic apparatus, a spatial positioning system and a method thereof. The electronic apparatus includes: a body having a central region and a peripheral region surrounding the central region; and a plurality of signal receiving components disposed in the peripheral region of the body. The signal receiving component includes a circuit board and a plurality of signal receiving devices located on the circuit board.
    Type: Application
    Filed: March 20, 2020
    Publication date: February 4, 2021
    Inventors: Chao ZHENG, Zhanshan MA, Jiyang SHAO, Jinbao PENG, Ziqiang GUO, Wenhong TIAN, Haoran JING, Zhiyu SUN, Zheng GE, Yuhong LIU, Hao ZHANG, Lili CHEN
  • Publication number: 20210024873
    Abstract: Disclosed herein are methods of controlling, modulating, increasing, or improving protein yield in a sample mixture comprising a target protein and impurities comprising monitoring in real-time an ultraviolet (UV) signal of the sample mixture during protein filtration in a harvest skid.
    Type: Application
    Filed: March 26, 2019
    Publication date: January 28, 2021
    Inventors: Deqiang YU, Xiaoming LIU, Chao MA, Jongchan LEE, Zhengjian LI
  • Publication number: 20210012697
    Abstract: A display device and a display method of the same are provided. The display device includes: a color electrophoretic display pixel layer and a liquid crystal layer; the color electrophoretic display pixel layer includes electrophoretic display pixel units arranged in an array, each of the electrophoretic display pixel units includes three pixel sub-units, and each of the electrophoretic display pixel units is configured to display a color by mixing colors of the three pixel sub-units; the liquid crystal layer is disposed on a light-emitting surface of the color electrophoretic display pixel layer, and a luminous flux of light emitted from the color electrophoretic display pixel layer is changed by controlling a deflection angle of a liquid crystal in the liquid crystal layer.
    Type: Application
    Filed: March 27, 2020
    Publication date: January 14, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Rui XU, Chao TIAN, Min WANG, Zhe WANG, Shuo LI, Xiang YUAN, Qingqing MA, Yinan GAO, Guojie QIN
  • Patent number: 10875903
    Abstract: Bifunctional fusion proteins having Tumstatin active fragments and CD137L extracellular regions are provided. The proteins exhibit activities to inhibit the proliferation of human umbilical vein endothelial cells and to costimulate the proliferation of T cells. They can be used for the treatment of various tumor-related diseases and the regulation of angiogenesis and immunological effects in humans.
    Type: Grant
    Filed: May 5, 2014
    Date of Patent: December 29, 2020
    Assignee: CHINA PHARMACEUTICAL UNIVERSITY
    Inventors: Shuzhen Wang, Yijun Chen, Dongyang He, Nan Liu, Chao Ma, Zhenyue Gao
  • Publication number: 20200394535
    Abstract: Embodiments of the present disclosure provide a method and apparatus for recommending a test question, and an intelligent device. The method includes: acquiring a plurality of skill entities of a post; calculating, according to the data of the post, a weight value of each of the plurality of skill entities; and acquiring, according to the weight value of each skill entity, a recommended test question of the post from a question bank.
    Type: Application
    Filed: December 12, 2019
    Publication date: December 17, 2020
    Inventors: Chuan Qin, Hengshu Zhu, Chen Zhu, Chao Ma, Jingshuai Zhang, Peng Wang, Tong Xu
  • Publication number: 20200388730
    Abstract: A phosphor in glass (PiG) cover is provided to modulate the color emitted from an LED chip. The PiG cover includes an active layer including glass and phosphor, and a secondary layer including glass and free of phosphor. The active layer is stacked on the secondary layer to form the PiG cover. Alternately the PiG includes an active layer sandwiched between two secondary layers. Two or more active layers can be stacked to each other or disposed side-by-side. An LED chip is arranged under the PiG cover to form an LED package.
    Type: Application
    Filed: June 3, 2020
    Publication date: December 10, 2020
    Inventors: Cody J. Gleason, Srinivasan Sridharan, George E. Sakoske, Ellen S. Tomey, Chao Ma, Jackie D. Davis, Yi Yang, Stanley Wang
  • Publication number: 20200373970
    Abstract: Flexible structured-pipelined CORDIC techniques efficiently perform various CORDIC operations and support different parameters for MIMO MEQ processing. The structured-pipelined CORDIC techniques simplify signal processing flow, unify input requirements and output delay, and simplify integration. Look-up table techniques provide quick generation of control signals, reduce design and verification efforts, and facilitate design automation. In addition, the structured-pipelined CORDIC techniques are conducive to hardware sharing and reuse. The structured-pipelined CORDIC techniques reduce integrated circuit area and power consumption.
    Type: Application
    Filed: May 18, 2020
    Publication date: November 26, 2020
    Inventors: Yong Ma, Kai Cheong Tang, Chao Shan, Mao Yu
  • Patent number: 10845495
    Abstract: A method and device of identifying a fracture are provided in the embodiments of the present application. The method comprises: determining three components of structure quantification for each data point in a seismic data volume; constructing a structure quantification matrix of the data point according to the three components of structure quantification for each of the data points; determining feature value and feature vector of the structure quantification matrix of each of the data points; determining fracture attribute value of the data point according to the feature value and feature vector of the structure quantification matrix of each of the data points; constructing a data volume of the fracture attribute according to the fracture attribute values of respective data points; and performing a fracture extraction for the data volume of the fracture attribute according to the feature vectors of the structure quantification matrix of the respective data points.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: November 24, 2020
    Assignee: PETROCHINA COMPANY LIMITED
    Inventors: Chao Feng, Tuanyu Teng, Qingzhou Yao, Delong Ma, Han Zhang, Lu Yin, Linjun Huang
  • Publication number: 20200362449
    Abstract: A mask plate, a method for fabricating the mask plate, and an evaporation device are disclosed. The mask plate comprises a mask frame and a mask strip. The mask frame comprises a transition layer on a first surface of the mask frame, and the mask strip is welded to the mask frame through the transition layer. In particular, a material of the transition layer is the same as that of the mask strip.
    Type: Application
    Filed: March 30, 2018
    Publication date: November 19, 2020
    Inventors: Wenchang ZHANG, Chao MA, Fujiang JIN, Wenbin YANG, Wangming ZENG, Yongmao WANG, Shihua HUANG
  • Publication number: 20200347212
    Abstract: The present disclosure relates to an encapsulant film made from a curable composition comprising: (A) a polyolefin polymer; (B) an organic peroxide; (C) a silane coupling agent; and (D) a co-agent comprising a monocyclic organosilazane of formula (I).
    Type: Application
    Filed: October 31, 2017
    Publication date: November 5, 2020
    Inventors: Chao He, Yunfeng Yang, Weiming Ma, Hongyu Chen, Yuyan Li, Hong Yang
  • Publication number: 20200347213
    Abstract: This disclosed is an encapsulant film made from a curable composition comprising: (A) a polyolefin polymer; (B) an organic peroxide; (C) a silane coupling agent; and (D) a co-agent comprising a silane compound of formula (I). This further disclosed is a process for preparing said encapsulant film.
    Type: Application
    Filed: October 31, 2017
    Publication date: November 5, 2020
    Inventors: Yunfeng Yang, Kainan Zhang, Yonghua Gong, Weiming Ma, Chao He, Hongyu Chen, Yabin Sun, Hong Yang, Yuyan Li
  • Patent number: 10826649
    Abstract: A communication device determines that a data rate of a data packet exceeds a threshold, and in response, lowers a processing speed of an equalizer device to prevent a buffer from overflowing. The buffer stores outputs generated by the equalizer device. A forward error correction code decoder device of the communication device processes outputs of the equalizer device corresponding to the data packet to generate decoded information corresponding to the data packet. The communication device transmits an acknowledgment packet to acknowledge the data packet such that transmission of the acknowledgment packet begins within required time period, defined by a communication protocol, after an end of the data packet.
    Type: Grant
    Filed: January 29, 2019
    Date of Patent: November 3, 2020
    Assignee: Marvell Asia Pte, Ltd.
    Inventors: Mao Yu, Yong Ma, Chao Shan, Yan Zhong
  • Publication number: 20200340070
    Abstract: An efficient long-service-life blowing method include the steps of introducing vanadium extraction converter flue gas and decarburization converter flue gas into an oxygen combustor; obtaining first-purity CO2—N2 mixed gas through the vanadium extraction converter flue gas; obtaining second-purity CO2—N2 mixed gas through the decarburization converter flue gas; obtaining O2—CO2—N2 mixed gas through the decarburization converter flue gas; obtaining first-purity CO2 gas through the second-purity CO2—N2 mixed gas; and using the first-purity CO2—N2 mixed gas for bottom blowing of the vanadium extraction converter, using the second-purity CO2—N2 mixed gas as a carrier gas for blowing iron ore powder into the vanadium extraction converter, and using the O2—CO2—N2 mixed gas and the first-purity CO2 gas as a carrier gas for bottom blowing of the decarburization converter and bottom injecting of lime powder into the decarburization converter.
    Type: Application
    Filed: July 10, 2020
    Publication date: October 29, 2020
    Inventors: Rong ZHU, Shaoyan HU, Kai DONG, Guangsheng WEI, Haoran MA, Weifeng LI, Yun ZHOU, Zhihui LI, Wenhe WU, Baochen HAN, Chao FENG, Rongfang SU