Patents by Inventor Xiaoyu Liu

Xiaoyu Liu 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: 9484766
    Abstract: This disclosure provides systems, methods and apparatus for tuning a wireless power transmitter. In one aspect a device configured to wirelessly provide power to a load is provided. The device includes a signal driver configured to provide power along a power path. The device further includes a first tuning circuit along the power path, configured to tune reactance at the signal driver, introducing undesired harmonic content. The device further includes a second tuning circuit along the power path, configured to tune reactance at the signal driver and to generate complementary harmonic content, at least partly canceling the harmonic generated at the first tuning circuit.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: November 1, 2016
    Assignee: QUALCOMM INCORPORATED
    Inventors: Cody Burton Wheeland, Xiaoyu Liu, Gabriel Isaac Mayo
  • Patent number: 9346770
    Abstract: Phenyl propanoic acid compounds having activating effect on peroxisome proliferator-activated receptors (PPAR?,?,?) and a preparation method and uses thereof are provided in the present invention. The compounds can be used for treating or preventing diseases associated with peroxisome proliferator-activated receptors (PPAR?,?,?).
    Type: Grant
    Filed: June 18, 2011
    Date of Patent: May 24, 2016
    Assignee: ZHEJIANG HISUN PHARMACEUTICAL CO., LTD.
    Inventors: Yaping Wang, Guojun Zheng, Peng Sun, Yi Li, Yingqiu Wu, Bin Liu, Xiaoyu Liu, Hua Bai, Hongyan Li, Xiaohe Zheng
  • Patent number: 9346818
    Abstract: Provided in the present invention are novel benzodioxole derivatives and preparation methods thereof. These compounds represented by formula (I) or pharmaceutically acceptable salts thereof have acetylcholinesterase inhibitory activity, so can be used in the treatment or prevention of Alzheimer's disease. The definitions of R1, R2 and A of formula (I) can be seen in the description.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: May 24, 2016
    Assignee: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Hua Bai, Xuyang Zhao, Jinqing Zhong, Yongxiang Gong, Qifeng Zhu, Xiaoyu Liu, Xiaohe Zheng, Lifei Liu
  • Patent number: 9258526
    Abstract: The disclosure relates to a method and system for audio/video communication, and a client. The method includes setting up a connection with a server for audio/video communication, opening multiple windows for the audio/video communication; obtaining an enabling instruction for enabling audio/video communication of any one of the windows for audio/video communication amongst the multiple windows for audio/video communication; disabling audio/video communication for other windows for audio/video communication amongst the multiple windows for audio/video communication according to the enabling instruction.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 9, 2016
    Assignee: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Zhongnan Li, Pu Wang, Xiaoyu Liu, Jiajun Chen
  • Patent number: 9238840
    Abstract: A method for analyzing a genome of a single cell is provided, and a kit is also provided. The method for analyzing the genome of the single cell may comprise separating and lysing the single cell to obtain a whole-genome DNA of the cell; subjecting the whole-genome DNA to a whole-genome amplification to obtain a whole-genome amplification product; performing a PCR amplification using the whole-genome amplification product as template and using housekeeping-gene-specific primers to detect the housekeeping gene of the whole-genome amplification product; and determining whether the whole genome amplification product meets a requirement for sequencing based on the detection result, wherein a uniform distribution of the amplification product in each chromosome is an indication of the amplification product meeting the requirement for sequencing.
    Type: Grant
    Filed: December 29, 2011
    Date of Patent: January 19, 2016
    Assignee: BGI-Shenzhen Co., Limited
    Inventors: Xuyang Yin, Li Bao, Xun Xu, Hanjie Wu, Xiaoyu Liu, Xiuqing Zhang, Huanming Yang
  • Publication number: 20160004000
    Abstract: A cover, a portable electronic device using the same and a method for manufacturing the same are provided. The cover comprises a transparent layer one surface of which is a textured surface. The cover also comprises a light guide formed in the transparent layer, one of interior surfaces of the light guide being the textured surface, wherein the light guide is for light guiding such that at least one beam of coloured light is guided through the transparent layer and dispersed out of the transparent layer at a surface opposite to the textured surface as a result of being incident on the texture. With the cover according to embodiments of the present invention, a portable electronic device to which the cover is attached could be illuminated with different coloured lights.
    Type: Application
    Filed: January 30, 2013
    Publication date: January 7, 2016
    Inventors: Wuyang HUANG, Xiaoyu LIU
  • Publication number: 20150191480
    Abstract: Provided in the present invention are novel benzodioxole derivatives and preparation methods thereof. These compounds represented by formula (I) or pharmaceutically acceptable salts thereof have acetylcholinesterase inhibitory activity, so can be used in the treatment or prevention of Alzheimer's disease. The definitions of R1, R2 and A of formula (I) can be seen in the description.
    Type: Application
    Filed: July 3, 2013
    Publication date: July 9, 2015
    Applicant: ZHEJIANG HISUN PHARMACEUTICAL CO., LTD.
    Inventors: Hua Bai, Xuyang Zhao, Jinqing Zhong, Yongxiang Gong, Qifeng Zhu, Xiaoyu Liu, Xiaohe Zheng, Lifei Liu
  • Publication number: 20150171657
    Abstract: This disclosure provides systems, methods and apparatus for tuning a wireless power transmitter. In one aspect a device configured to wirelessly provide power to a load is provided. The device includes a signal driver configured to provide power along a power path. The device further includes a first tuning circuit along the power path, configured to tune reactance at the signal driver, introducing undesired harmonic content. The device further includes a second tuning circuit along the power path, configured to tune reactance at the signal driver and to generate complementary harmonic content, at least partly canceling the harmonic generated at the first tuning circuit.
    Type: Application
    Filed: December 16, 2013
    Publication date: June 18, 2015
    Applicant: QUALCOMM Incorporated
    Inventors: Cody Burton Wheeland, Xiaoyu Liu, Gabriel Isaac Mayo
  • Publication number: 20150119458
    Abstract: The present invention discloses a 4-((substituted phenyl)difluoromethyl)phenoxycarboxylic acid derivative and preparation process and use thereof. More specifically, the present invention relates to a compound of the following formula I, which is defined in the specification. The compounds according to the present invention can be used as PPAR agonists, and demonstrates a strong effect on reducing the levels of total cholesterol (TC), triglyceride (TG), and low density lipoprotein cholesterol (LDL-C) in blood plasma, and thus the compound according to the present invention can be used in the preparation of a medicament for treating or preventing hyperlipoidemia or cardio-cerebrovascular diseases caused by hyperlipoidemia, such as diabetes, atherosclerosis, stroke, coronary heart disease, etc. The present invention also relates to a novel intermediate compound for the preparation of the compound of formula I and preparation method thereof.
    Type: Application
    Filed: April 25, 2013
    Publication date: April 30, 2015
    Applicant: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Hua Bai, Jian Hong, Lifeng Cai, Hegeng Wei, Xiaoyu Liu, Xiaohe Zheng
  • Patent number: 9008668
    Abstract: A service handover control apparatus and a method using the apparatus are provided. The service handover control apparatus includes a service handover management unit collecting information associated with a transmitting terminal and a wireless access network, which operate based on an Internet Protocol multimedia subsystem (IMS), and outputting a control signal which controls service handovers of the transmitting terminal and the receiving terminal based on the collected information; and a service handover controller providing the service handover management unit with the information associated with the transmitting terminal and the receiving terminal, and controlling the service handovers of the transmitting terminal and the receiving terminal based on the control signal.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: April 14, 2015
    Assignees: Samsung Electronics Co., Ltd., Fraunhofer Gesellschaft zur Foerderung der angewandten Forschung e.V.
    Inventors: Su-won Lee, Xiaoyu Liu, John Williams Floroiu, Eun Sun Jung, Hee Jin Jang, Marius Corici, Byoung Joon Lee
  • Patent number: 8946478
    Abstract: Provided are a benzamide derivative as shown in formula (I) or a pharmaceutically acceptable salt thereof, and the preparation method and use thereof for preparing a medicine for treating cancer, wherein the group definitions of formula (I) are as set out in the description.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: February 3, 2015
    Assignee: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Hua Bai, Xuyang Zhao, Yongxiang Gong, Jinqing Zhong, Qifeng Zhu, Xiaoyu Liu, Lifei Liu, Qixian Zhou
  • Patent number: 8922065
    Abstract: A wireless energy transfer system includes a first energy transfer unit having at least one resonant frequency, a second energy transfer unit having the at least one resonant frequency, and a load. The first wireless energy transfer unit includes a first coil magnetically coupled to a first wireless energy transfer cell, and the second wireless energy transfer unit includes a second coil magnetically coupled to a second wireless energy transfer cell. The first coil receives first energy and through the magnetic coupling between the first coil and the first wireless energy transfer cell, the first wireless energy transfer cell is caused to generate second energy, wherein the second wireless energy transfer cell receives the second energy and through the magnetic coupling between the second wireless energy transfer cell and the second coil, the second coil is caused to provide third electromagnetic wave energy to the load.
    Type: Grant
    Filed: February 21, 2013
    Date of Patent: December 30, 2014
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Mingui Sun, Steven Hackworth, Robert Sclabassi, Fei Zhang, Xiaoyu Liu
  • Patent number: 8921424
    Abstract: The present invention relates to compounds represented by formula (I) or composition comprising at least one of such compounds, which are inhibitors of histone deacetylase. The detailed description of these compounds is disclosed in the Description. These compounds and the composition comprising the same may be useful as medicaments for the treatment of proliferative disorders as well as other diseases involving, relating to or associated with enzymes having histone deacetylase (HDAC) activities.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: December 30, 2014
    Assignees: Zhejiang Hisun Pharmaceutical Co. Ltd., Central South University
    Inventors: Niefang Yu, Xiaoyu Liu, Xiaodong Hu
  • Patent number: 8822519
    Abstract: The present invention provides a novel compound of formula I, which has an agitation effect on the peroxisome proliferator-activated receptor subtype ? (PPAR?), to a pharmaceutical composition comprising the compound, to a process for preparation of the compound and to use of the compound in the manufacture of a medicament for treating or preventing a disease which could be treated or prevented by activating PPAR? thereof, said disease is one or more from the group comprising metabolic syndrome, obesity, dyslipidemia, pathoglycemia, insulin resistance, senile dementia and tumors. The present invention also relates to a new intermediate used in the preparation of the novel compound and a process for preparation of the intermediate.
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: September 2, 2014
    Assignee: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Chunhua Jin, Xiaoyu Liu, Zhenliang Chen, Xiaohe Zheng, Shoufeng Ming
  • Publication number: 20140204755
    Abstract: An apparatus for distributing data traffic in heterogeneous wireless networks is provided. A terminal for transmitting data to a plurality of wireless networks, includes a transmission rule storing unit to store a data transmission rule with respect to the plurality of wireless networks, a data dividing unit to divide first data into a plurality of first data groups based on the stored data transmission rule, a transmission network selecting unit to select an individual transmission network for each divided data group from the plurality of wireless networks based on the determined data transmission rule, and a network access unit to transmit each data group to the selected transmission network.
    Type: Application
    Filed: March 21, 2014
    Publication date: July 24, 2014
    Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Xiaoyu LIU, Su Won LEE, Byung Suk KIM, Byoung-Joon LEE, Marius-Iulian CORICI
  • Publication number: 20140192139
    Abstract: The disclosure relates to a method and system for audio/video communication, and a client. The method includes setting up a connection with a server for audio/video communication, opening multiple windows for the audio/video communication; obtaining an enabling instruction for enabling audio/video communication of any one of the windows for audio/video communication amongst the multiple windows for audio/video communication; disabling audio/video communication for other windows for audio/video communication amongst the multiple windows for audio/video communication according to the enabling instruction.
    Type: Application
    Filed: March 13, 2014
    Publication date: July 10, 2014
    Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED
    Inventors: Zhongnan Li, Pu Wang, Xiaoyu Liu, Jiajun Chen
  • Patent number: 8774806
    Abstract: A method and apparatus for registering a Media Independent Handover (MIH) is provided. An MIH registration method includes transmitting, by a serving network, an MIH registration request of the serving network to at least one candidate network when an MIH registration request is received from a mobile terminal, the at least one candidate network corresponding to the serving network, receiving, by the serving network, a response to the MIH registration request of the serving network from each of the at least one candidate network, and transmitting, by the serving network, a response to the MIH registration request of the mobile terminal to the mobile terminal.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: July 8, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Xiaoyu Liu, Su Won Lee, Jeong Jae Won, Eui Seok Hwang
  • Patent number: 8687544
    Abstract: An apparatus for distributing data traffic in heterogeneous wireless networks is provided. A terminal for transmitting data to a plurality of wireless networks, includes a transmission rule storing unit to store a data transmission rule with respect to the plurality of wireless networks, a data dividing unit to divide first data into a plurality of first data groups based on the stored data transmission rule, a transmission network selecting unit to select an individual transmission network for each divided data group from the plurality of wireless networks based on the determined data transmission rule, and a network access unit to transmit each data group to the selected transmission network.
    Type: Grant
    Filed: May 27, 2008
    Date of Patent: April 1, 2014
    Assignees: Samsung Electronics Co., Ltd., Fraunhofer-Gesellschaft zur Foerderung der Angewandten Forschung e.V.
    Inventors: Xiaoyu Liu, Su Won Lee, Byung Suk Kim, Byoung-Joon Lee, Marius-Iulian Corici
  • Publication number: 20140017683
    Abstract: A method for analyzing a genome of a single cell is provided, and a kit is also provided. The method for analyzing the genome of the single cell may comprise separating and lysing the single cell to obtain a whole-genome DNA of the cell; subjecting the whole-genome DNA to a whole-genome amplification to obtain a whole-genome amplification product; performing a PCR amplification using the whole-genome amplification product as template and using housekeeping-gene-specific primers to detect the housekeeping gene of the whole-genome amplification product; and determining whether the whole genome amplification product meets a requirement for sequencing based on the detection result, wherein a uniform distribution of the amplification product in each chromosome is an indication of the amplification product meeting the requirement for sequencing.
    Type: Application
    Filed: December 29, 2011
    Publication date: January 16, 2014
    Applicant: BGI-Shenzhen Co., Ltd.
    Inventors: Xuyang Yin, Li Bao, Xun Xu, Hanjie Wu, Xiaoyu Liu, Xiuqing Zhang, Huanming Yang
  • Patent number: 8623855
    Abstract: Preparation of azetidinone compounds and medical use thereof are provided by the present invention. More particularly, azetidionne compounds, shown as formula (I), wherein R1, R2, R3, R4, R5 and R6 are defined in description, and preparation methods thereof are provided by the present invention. The compounds of the present invention can reduce the levels of total cholesterol (TC) and low density lipoprotein cholesterol (LDL-C) in plasma, and can be used as medicaments for reducing cholesterol in blood. Therefore the compounds of the present invention can be used to treat or prevent diseases of atherosclerosis, cacergasia of blood vessel, cardiac failure, coronary artery disease, angiocardiopathy, myocardial, angina, hyperlipoidemia and hypercholesteremia and the like. Preparation method of compounds of formula (I) and intermediate compounds are also provided by the present invention.
    Type: Grant
    Filed: August 9, 2010
    Date of Patent: January 7, 2014
    Assignee: Zhejiang Hisun Pharmaceutical Co., Ltd.
    Inventors: Hua Bai, Xuyang Zhao, Xiaojie Xu, Xiaoyu Liu, Yuncai Zhang, Ying Chen, Xiaohe Zheng, Maojian Gu, Qifeng Zhu, Yong Zhang, Hairong Luo