Patents by Inventor Yunfeng Li

Yunfeng Li 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: 20170184747
    Abstract: Methods and apparatuses for directional designature in shot domain are provided. Azimuth and take-off angles are calculated for each record in the seismic data. Directional designature is then applied to the seismic data using a source signature dependent on the azimuth and take-off angles.
    Type: Application
    Filed: March 24, 2015
    Publication date: June 29, 2017
    Inventors: Chang-Chun LEE, Yunfeng LI, Suryadeep RAY, Gordon POOLE
  • Patent number: 9618192
    Abstract: A small-spacing LED screen is provided, comprising a bottom case, an HUB board arranged on one side of the bottom case, and a small module arranged on the other side and electrically connected with the HUB board. The small module includes a module main body and a drive control unit which is electrically connected with the module main body to drive and control the module main body. An adaptor plate is also arranged between the small module and the HUB board. The HUB board is electrically connected with the adaptor plate. The drive control unit is arranged on the adaptor plate. The LED screen has the smallest spacing, and the reject ratio of the small module is greatly reduced.
    Type: Grant
    Filed: May 29, 2014
    Date of Patent: April 11, 2017
    Inventors: Jinfeng He, Hongbo Ma, Yunfeng Li
  • Publication number: 20170043451
    Abstract: A weather-resistant polishing pad, including an upper layer operating for polishing, a buffer layer, and a transparent base. The buffer layer is disposed between the upper layer and the transparent base, and the upper layer, the buffer layer, and the transparent base are bonded via a pressure sensitive adhesive or an adhesive agent. The upper layer includes a weather-resistant polyurethane prepolymer, a curing agent, and a functional filler. The polyurethane prepolymer is a polymerization product of polyol and polyfunctional isocyanate. The polyfunctional isocyanate includes a first isocyanate containing no benzene ring, or the first isocyanate having an isocyanato group and a benzene group, and the isocyanato group and the benzene group are connected indirectly.
    Type: Application
    Filed: August 10, 2016
    Publication date: February 16, 2017
    Inventors: Shunquan ZHU, Lili MEI, Yunfeng LI
  • Publication number: 20170023215
    Abstract: A small-spacing LED screen is provided, comprising a bottom case, an HUB board arranged on one side of the bottom case, and a small module arranged on the other side and electrically connected with the HUB board. The small module includes a module main body and a drive control unit which is electrically connected with the module main body to drive and control the module main body. An adaptor plate is also arranged between the small module and the HUB board. The HUB board is electrically connected with the adaptor plate. The drive control unit is arranged on the adaptor plate. The LED screen has the smallest spacing, and the reject ratio of the small module is greatly reduced.
    Type: Application
    Filed: May 29, 2014
    Publication date: January 26, 2017
    Applicant: Unilumin Group Co., Ltd
    Inventors: Jinfeng HE, Hongbo MA, Yunfeng LI
  • Publication number: 20160363682
    Abstract: Method and system for acquiring seismic data. The method includes receiving an area to be seismically surveyed; receiving a sub-area that is smaller than area; determining a full seismic survey configuration, which includes streamer vessels and source vessels, to survey the entire area, wherein the full seismic survey configuration generates seismic data over the entire area; determining an in-fill process configuration that is different than the full seismic survey configuration, wherein the in-fill process configuration generates long offset seismic data over the sub-area; and sending the full seismic survey configuration to the streamer vessels and the source vessels.
    Type: Application
    Filed: June 8, 2016
    Publication date: December 15, 2016
    Inventors: Damien GRENIE, Keith WILHELM, Yunfeng LI, Michael MEECH
  • Publication number: 20160241019
    Abstract: A current clamp circuit based on BCD technology includes a current-outputting circuit, an output-current-sensing circuit, and a current clamp circuit. The current-outputting circuit outputs a current to the output-current-sensing circuit. The output-current-sensing circuit senses the output current. When the current actually output by the current-outputting circuit is greater than a clamp current, the current clamp circuit outputs a current clamp feedback control signal to the current-outputting circuit, so as to clamp the output current clamp at a set value.
    Type: Application
    Filed: August 27, 2015
    Publication date: August 18, 2016
    Inventor: Yunfeng Li
  • Publication number: 20160227192
    Abstract: Systems and methods for processing a pair of 2-D images are described. In one example, a stereoscopic set of images is converted into a collection of regions that represent individual 3-D objects in the pair of images. In one embodiment, the system recovers the 3-D point P for each point p that appears in both images. It estimates the 3-D orientation of the floor plane, and the image capture planes and their height from the floor. The system then identifies the collection B of points P that do not represent points on the floor and generates a projection C of B onto a plane parallel to the floor. It blurs the projection C and identifies peaks in the blurred image, then fits symmetric figures to the points in C around the identified peaks. The system projects the 3-D figures associated with the symmetric figures back onto the 2-D images.
    Type: Application
    Filed: December 28, 2015
    Publication date: August 4, 2016
    Applicant: Purdue Research Foundation
    Inventors: Zygmunt Pizlo, Tadamasa Sawada, Yunfeng Li
  • Patent number: 9397345
    Abstract: In various embodiments, the present disclosure provides a layered metal-air cathode for a metal-air battery. Generally, the layered metal-air cathode comprises an active catalyst layer, a transition layer bonded to the active catalyst layer, and a backing layer bonded to the transition layer such that the transition layer is disposed between the active catalyst layer and the backing layer.
    Type: Grant
    Filed: July 24, 2013
    Date of Patent: July 19, 2016
    Assignee: The Curators of the University of Missouri
    Inventors: Yangchuan Xing, Kan Huang, Yunfeng Li
  • Patent number: 9225964
    Abstract: Systems and methods for processing a pair of 2-D images are described. In one example, a stereoscopic set of images is converted into a collection of regions that represent individual 3-D objects in the pair of images. In one embodiment, the system recovers the 3-D point P for each point p that appears in both images. It estimates the 3-D orientation of the floor plane, and the image capture planes and their height from the floor. The system then identifies the collection B of points P that do not represent points on the floor and generates a projection C of B onto a plane parallel to the floor. It blurs the projection C and identifies peaks in the blurred image, then fits symmetric figures to the points in C around the identified peaks. The system projects the 3-D figures associated with the symmetric figures back onto the 2-D images.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: December 29, 2015
    Assignee: PURDUE RESEARCH FOUNDATION
    Inventors: Zygmunt Pizlo, Tadamasa Sawada, Yunfeng Li
  • Publication number: 20150355357
    Abstract: Methods and systems for optimized receiver-based ghost filter generation are described. The optimized ghost filter self-determines its parameters based on an iterative calculation of recorded data transformed from a time-space domain to a Tau-P domain. An initial ghost filter prediction is made based on generating mirror data from the recorded data and using a least squares technique during a premigration stage.
    Type: Application
    Filed: January 13, 2014
    Publication date: December 10, 2015
    Inventors: Ping WANG, Suryadeep RAY, Can PENG, Yunfeng LI
  • Patent number: 9119268
    Abstract: Drivers for driving light circuits with light emitting diodes include an isolation circuit with a primary part and a secondary part and a guiding circuit for guiding common mode surge signals to a reference potential. The isolation circuit may be configured to guide a first part of the common mode surge signal away from the light circuit, and the guiding circuit may be configured to guide a second part of the common mode surge signal away from the light circuit, the second part being smaller than the first part. The guiding circuit may include one or more capacitors for connecting one or more terminals of the secondary part to the reference potential, where the value(s) of the one or more capacitors is/are larger than values of a parasitic capacitance of the isolation circuit.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: August 25, 2015
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Bing Lai, Bernd Clauberg, Yunfeng Li
  • Patent number: 8980887
    Abstract: Disclosed are 2-arylimidazo[1,2-a]pyridine-3-acetamide derivatives represented by formula I, their tautomer, racemate or optical isomer, their pharmaceutically acceptable salt, or their solvates, wherein R1, R2, R3 and R4 are defined as in the specification.
    Type: Grant
    Filed: June 9, 2011
    Date of Patent: March 17, 2015
    Assignees: Institute of Pharmacology, Toxicology Academy of Military Medical Sciences P.L.A., China
    Inventors: Rifang Yang, Yunfeng Li, Yongzhen Li, Nan Zhao, Liuhong Yun, Juanjuan Qin, Zhongyao Feng, Youzhi Zhang
  • Patent number: 8921563
    Abstract: Provided are N-[(4-hydroxypiperidin-4-yl)methyl]pyridin-2(1H)-one derivatives represented by formula I, stereoisomers, pharmaceutically acceptable salts or solvates thereof. The above compounds have the dual activities of 5-hydroxytryptamine 1A receptor ligand and selective serotonin reuptake inhibitor. The preparation methods of the above compounds, the uses of these compounds for the prevention or treatment of nervous system diseases related to 5-hydroxytryptamine system dysfunction and the pharmaceutical compositions containing these compounds are also provided.
    Type: Grant
    Filed: April 8, 2011
    Date of Patent: December 30, 2014
    Assignee: Institue of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A., China
    Inventors: Yunfeng Li, Rifang Yang, Youzhi Zhang, Yongzhen Li, Zengliang Jin, Peng Li, Li Yuan, Liuhong Yun, Nan Zhao, Cheng Zhang, Xiaodan Xu, Rusheng Zhao, Hongxia Chen, Rui Xue, Juanjuan Qin, Zhenzhen Wang, Jiazhi Yao
  • Publication number: 20140368124
    Abstract: Drivers (1) for driving light circuits (2) with light emitting diodes comprise isolation circuits (11-14) with primary parts (11,13) and secondary parts (12, 14) and guiding circuits (22, 23) for guiding common mode surge signals to reference potentials. The isolation circuits (11-14) may be designed to guide first parts of the common mode surge signals (3) away from the light circuits (2) and the guiding circuits (22, 23) may be designed to guide second parts of the common mode surge signals (3) away from the light circuits (2), the second parts being smaller than the first parts. The guiding circuit (22, 23) may comprise capacitors (22) for connecting first terminals of the secondary parts (12, 14) to the reference potentials, values of the capacitors (22) being larger than values of parasitic capacitances (41) of the isolation circuits (11-14). The driver (1) does not comprise any capacitor that interconnects the primary and secondary parts (11-14).
    Type: Application
    Filed: July 3, 2013
    Publication date: December 18, 2014
    Inventors: BING LAI, BERND CLAUBERG, YUNFENG LI
  • Publication number: 20140128359
    Abstract: The invention relates to N-heterocyclic substituent-containing antibiotics, their preparation, and their use. Disclosed are sodium and potassium salts of 7-(?-((N,N?-diisopropylamidino)thio)acetylamino)-3-(((1,2,5,6-tetrahydro-2-methyl-5,6-diox o-1,2,4-triazin-3-yl)thio)methyl) cephalosporanic acid as presented by the general structure (I), their preparation, and their use. The antibiotics of the invention can be used to treat diseases caused by Gram-positive or Gram-negative bacteria such as septicaemia, gastrointestinal tract infection, and urinary tract infection. They have increased half-life in blood and lowered toxicity. They can reduce the frequency of drug use and lower medical treatment costs. They have improved stability and can be stored at ambient temperatures. The method of the invention is simple, and it produces high purity products which can meet the requirements of clinical use.
    Type: Application
    Filed: November 2, 2012
    Publication date: May 8, 2014
    Applicants: GUANGZHOU PHARMACEUTICAL INDUSTRIAL RESEARCH INSTI, GUANGZHOU BAIYUNSHAN PHARMACEUTICAL CO., LTD. GUANGZHOU BAIYUNSHAN PHARMACEUTICAL FACTORY
    Inventors: Mao Chen, Shaoxuan Zhu, Xuebin Liu, Lizhen Zheng, Liwei Lin, Shuwen Xu, Yuping Wang, Wei Yang, Yunfeng Li, Fang Ye, Xiaona Zhang
  • Publication number: 20140071791
    Abstract: A method, an apparatus and a computer-readable medium for processing seismic data are provided. The method includes selecting well-imaged areas of a sediment-to-salt interface, and performing (1) a dual-flood RTM with prismatic waves to identify new areas of the sediment-to-salt interface, and (2) one or more RTM to identify other new areas of the sediment-to-salt interface or of a salt-to-sediment interface.
    Type: Application
    Filed: September 7, 2012
    Publication date: March 13, 2014
    Applicant: CGGVERITAS SERVICES SA
    Inventors: Yunfeng LI, Yogesh AGNIHOTRI, Timmy DY
  • Publication number: 20140049613
    Abstract: Systems and methods for processing a pair of 2-D images are described. In one example, a stereoscopic set of images is converted into a collection of regions that represent individual 3-D objects in the pair of images. In one embodiment, the system recovers the 3-D point P for each point p that appears in both images. It estimates the 3-D orientation of the floor plane, and the image capture planes and their height from the floor. The system then identifies the collection B of points P that do not represent points on the floor and generates a projection C of B onto a plane parallel to the floor. It blurs the projection C and identifies peaks in the blurred image, then fits symmetric figures to the points in C around the identified peaks. The system projects the 3-D figures associated with the symmetric figures back onto the 2-D images.
    Type: Application
    Filed: February 24, 2012
    Publication date: February 20, 2014
    Applicant: PURDUE RESEARCH FOUNDATION
    Inventors: Zygmunt Pizlo, Tadamasa Sawada, Yunfeng Li
  • Publication number: 20140038067
    Abstract: In various embodiments, the present disclosure provides a layered metal-air cathode for a metal-air battery. Generally, the layered metal-air cathode comprises an active catalyst layer, a transition layer bonded to the active catalyst layer, and a backing layer bonded to the transition layer such that the transition layer is disposed between the active catalyst layer and the backing layer.
    Type: Application
    Filed: July 24, 2013
    Publication date: February 6, 2014
    Applicant: The Curators of the University of Missouri
    Inventors: Yangchuan Xing, Kan Huang, Yunfeng Li
  • Publication number: 20130231369
    Abstract: Provided are N-[(4-hydroxypiperidin-4-yl)methyl]pyridin-2(1H)-one derivatives represented by formula I, stereoisomers, pharmaceutically acceptable salts or solvates thereof. The above compounds have the dual activities of 5-hydroxytryptamine 1A receptor ligand and selective serotonin reuptake inhibitor. The preparation methods of the above compounds, the uses of these compounds for the prevention or treatment of nervous system diseases related to 5-hydroxytryptamine system dysfunction and the pharmaceutical compositions containing these compounds are also provided.
    Type: Application
    Filed: April 8, 2011
    Publication date: September 5, 2013
    Applicant: Institute of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A. China
    Inventors: Yunfeng Li, Rifang Yang, Youzhi Zhang, Yongzhen Li, Zengliang Jin, Peng Li, Li Yuan, Liuhong Yun, Nan Zhao, Cheng Zhang, Xiaodan Xu, Rusheng Zhao, Hongxia Chen, Rui Xue, Juanjuan Qin, Zhenzhen Wang, Jiazhi Yao
  • Publication number: 20130203754
    Abstract: Disclosed are 2-arylimidazo[1,2-a]pyridine-3-acetamide derivatives represented by formula I, their tautomer, racemate or optical isomer, their pharmaceutically acceptable salt, or their solvates, wherein R1, R2, R3 and R4 are defined as in the specification.
    Type: Application
    Filed: June 9, 2011
    Publication date: August 8, 2013
    Applicant: Institute of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A. China
    Inventors: Rifang Yang, Yunfeng Li, Yongzhen Li, Nan Zhao, Liuhong Yun, Juanjuan Qin, Zhongyao Feng, Youzhi Zhang