Patents by Inventor Yufei Gao

Yufei Gao 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: 10440710
    Abstract: Embodiments described herein are directed methods and network nodes for operating a wireless device in a wireless network. The network node is configured to determine a subchannel within a system bandwidth of the wireless network. The subchannel is an off-center subchannel with respect to the system bandwidth, and the subchannel includes a plurality of consecutive subcarriers taken from one or more contiguous physical resource blocks. The network node can further map the subchannel's center frequency to a subcarrier of a physical resource block included in the subchannel, wherein the center frequency corresponds to a direct current subcarrier at a receiver associated with the wireless device. The network node can allocate the subchannel to the wireless device.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: October 8, 2019
    Assignee: Telefonaktiebolaget LM Ericsson (publ)
    Inventors: Yufei Blankenship, Shiwei Gao
  • Patent number: 10412203
    Abstract: A handheld electronic device is provided. The handheld electronic device includes a housing, wherein a universal ball structure is provided at a corner of the housing. The universal ball structure includes a groove, and a ball in the groove.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: September 10, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLLOGY CO., LTD.
    Inventors: Hongyang Yu, Shuai Gao, Litao Fan, Yufei Liu
  • Patent number: 10405218
    Abstract: In some examples, a wireless access network node communicates with user equipments (UEs) in a plurality of sets of subframes, the plurality of sets of subframes comprising a first set of subframes and a second set of subframes. The wireless access network node performs dynamic power control of a transmission of the wireless access network node in the first set of subframes, and does not perform dynamic power control of a transmission of the wireless access network node in the second set of subframes.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: September 3, 2019
    Assignee: BlackBerry Limited
    Inventors: Yajun Zhu, Hua Xu, Zhijun Cai, Shiwei Gao, Yufei Wu Blankenship, Vahid Pourahmadi
  • Patent number: 10383110
    Abstract: A method for communication in a wireless telecommunication system is provided. The method includes assigning a first cell of a first network node to a first timing advance group (TAG) of a user equipment (UE) and assigning a second cell of a second network node to a second TAG of the UE, wherein the second network node has a separate MAC (medium access control) scheduler from the first network node, and wherein the UE is able to transmit data on both the first and the second cell.
    Type: Grant
    Filed: September 26, 2017
    Date of Patent: August 13, 2019
    Assignee: BlackBerry Limited
    Inventors: Yufei Wu Blankenship, Shiwei Gao, Hua Xu
  • Publication number: 20190208042
    Abstract: A handheld electronic device is provided. The handheld electronic device includes a housing, wherein a universal ball structure is provided at a corner of the housing. The universal ball structure includes a groove, and a ball in the groove.
    Type: Application
    Filed: June 18, 2018
    Publication date: July 4, 2019
    Inventors: Hongyang Yu, Shuai Gao, Litao Fan, Yufei Liu
  • Patent number: 10321359
    Abstract: A first wireless access network node receives feedback information from a second wireless access network node that performs data offload for the first wireless access node, the feedback information identifying a user equipment (UE) and including information relating to a buffer condition of a data buffer in the second wireless access network node. In response to the feedback information, performing, by the first wireless access network node, control of the data offload that includes controlling an offload of at least one radio bearer of the UE identified by the feedback information.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: June 11, 2019
    Assignee: BlackBerry Limited
    Inventors: Shiwei Gao, Yufei Wu Blankenship, Rene Waraputra Purnadi, Zhijun Cai, Yi Song, Changhoi Koo
  • Patent number: 10321511
    Abstract: Systems, methods, and apparatuses for radio resource control (RRC) signaling in wireless communication networks with data offload are provided. The radio configuration messages from a small cell to a dual connection UE may be sent by an overlay macro E-UTRAN node-B (eNB). The small cell may send the RRC messages to the macro-eNB first via a backhaul link, and the macro-eNB then transmits the messages to the UE. In some implementations, the radio configuration messages from a small cell to a dual connection UE may be sent directly from the small cell. In some other implementations, some of the RRC messages may be sent selectively to/from either the macro-cell or the small cell, or to/from both the macro-cell and the small cell. The type of RRC messages sent over the small cell and/or the macro-cell may be preconfigured or predetermined.
    Type: Grant
    Filed: April 30, 2018
    Date of Patent: June 11, 2019
    Assignee: BlackBerry Limited
    Inventors: Shiwei Gao, Yufei Wu Blankenship, Zhijun Cai
  • Patent number: 9422161
    Abstract: The invention relates to an ultrahard nanotwinned boron nitride bulk material and synthetic method thereof. Particularly, the invention discloses a nanocrystalline cubic boron nitride bulk material containing high density of twins and synthetic method thereof, in which a nanotwinned boron nitride bulk are synthesized from nanospherical boron nitride particles (preferably with a size of 5-70 nm) with onion-like structure as raw materials by using high temperature and high pressure synthesis. As compared with the prior arts, the nanotwinned boron nitride bulk obtained according to the invention has a much higher hardness than that of a normal cubic boron nitride single crystal. The nanotwinned boron nitride bulk has great prospects in applications, such as precision and ultra-precision machining, abrasives, drawing dies, and special optics as well as other fields.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: August 23, 2016
    Assignee: YANSHAN UNIVERSITY
    Inventors: Yongjun Tian, Dongli Yu, Bo Xu, Julong He, Zhongyuan Liu, Wentao Hu, Kun Luo, Yufei Gao, Zhisheng Zhao
  • Publication number: 20160214093
    Abstract: The present invention includes Fischer-Tropsch catalysts, reactions using Fischer-Tropsch catalysts, methods of making Fischer-Tropsch catalysts, processes of hydrogenating carbon monoxide, and fuels made using these processes. The invention provides the ability to hydrogenate carbon monoxide with low contact times, good conversion rates and low methane selectivities. In a preferred method, the catalyst is made using a metal foam support.
    Type: Application
    Filed: December 21, 2015
    Publication date: July 28, 2016
    Inventors: Yong Wang, David P. Vanderwiel, Anna Lee Tonkovich, Yufei Gao, Eddie G. Baker
  • Publication number: 20160211644
    Abstract: Edge-emitting laser chip wafer layouts are provided that enable a variety of tests to be performed while the chips are on the wafer, including side-mode suppression ratio (SMSR) tests. The laser chip wafer layouts include turning mirrors that direct light passing out of at least one of the facets of the chips away from the wafer. Directing the light out of the wafer in this manner allows external test and measurement equipment to perform SMSR testing on the chips prior to singulation.
    Type: Application
    Filed: January 19, 2015
    Publication date: July 21, 2016
    Inventors: Elaine R. Kleinfeld, Yufei Gao, John J. Leiby, James R. Lothian
  • Publication number: 20150158727
    Abstract: The invention relates to an ultrahard nanotwinned boron nitride bulk material and synthetic method thereof. Particularly, the invention discloses a nanocrystalline cubic boron nitride bulk material containing high density of twins and synthetic method thereof, in which a nanotwinned boron nitride bulk are synthesized from nanospherical boron nitride particles (preferably with a size of 5-70 nm) with onion-like structure as raw materials by using high temperature and high pressure synthesis. As compared with the prior arts, the nanotwinned boron nitride bulk obtained according to the invention has a much higher hardness than that of a normal cubic boron nitride single crystal. The nanotwinned boron nitride bulk has great prospects in applications, such as precision and ultra-precision machining, abrasives, drawing dies, and special optics as well as other fields.
    Type: Application
    Filed: August 2, 2013
    Publication date: June 11, 2015
    Applicant: YANSHAN UNIVERSITY
    Inventors: Yongjun Tian, Dongli Yu, Bo Xu, Julong He, Zhongyuan Liu, Wentao Hu, Kun Luo, Yufei Gao, Zhisheng Zhao
  • Publication number: 20100292074
    Abstract: The present invention includes Fischer-Tropsch catalysts, reactions using Fischer-Tropsch catalysts, methods of making Fischer-Tropsch catalysts, processes of hydrogenating carbon monoxide, and fuels made using these processes. The invention provides the ability to hydrogenate carbon monoxide with low contact times, good conversion rates and low methane selectivities. In a preferred method, the catalyst is made using a metal foam support.
    Type: Application
    Filed: April 12, 2010
    Publication date: November 18, 2010
    Applicant: BATTELLE MEMORIAL INSTITUTE
    Inventors: Yong Wang, David P. Vanderwiel, Anna Lee Y. Tonkovich, Yufei Gao, Eddie G. Baker
  • Patent number: 7700518
    Abstract: The present invention includes Fischer-Tropsch catalysts, reactions using Fischer-Tropsch catalysts, methods of making Fischer-Tropsch catalysts, processes of hydrogenating carbon monoxide, and fuels made using these processes. The invention provides the ability to hydrogenate carbon monoxide with low contact times, good conversion rates and low methane selectivities. In a preferred method, the catalyst is made using a metal foam support.
    Type: Grant
    Filed: September 20, 2005
    Date of Patent: April 20, 2010
    Assignee: Battelle Memorial Institute
    Inventors: Yong Wang, David P. Vanderwiel, Anna Lee Y. Tonkovich, Yufei Gao, Eddie G. Baker
  • Patent number: 7585899
    Abstract: The present invention includes a catalyst structure and method of making the catalyst structure for Fischer-Tropsch synthesis that both rely upon the catalyst structure having a first porous structure with a first pore surface area and a first pore size of at least about 0.1 ?m, preferably from about 10 ?m to about 300 ?m. A porous interfacial layer with a second pore surface area and a second pore size less than the first pore size is placed upon the first pore surface area. Finally, a Fischer-Tropsch catalyst selected from the group consisting of cobalt, ruthenium, iron and combinations thereof is placed upon the second pore surface area. Further improvement is achieved by using a microchannel reactor wherein the reaction chamber walls define a microchannel with the catalyst structure placed therein through which pass reactants. The walls may separate the reaction chamber from at least one cooling chamber. The present invention also includes a method of Fischer-Tropsch synthesis.
    Type: Grant
    Filed: February 27, 2006
    Date of Patent: September 8, 2009
    Assignee: Battelle Memorial Institute
    Inventors: Yong Wang, David P. Vanderwiel, Anna Lee Y. Tonkovich, Yufei Gao, Eddie G. Baker
  • Patent number: 7498001
    Abstract: The present invention includes a catalyst having a layered structure with, (1) a porous support, (2) a buffer layer, (3) an interfacial layer, and optionally (4) a catalyst layer. The invention also provides a process in which a reactant is converted to a product by passing through a reaction chamber containing the catalyst.
    Type: Grant
    Filed: April 13, 2004
    Date of Patent: March 3, 2009
    Assignee: Battelle Memorial Institute
    Inventors: Anna Lee Y. Tonkovich, Yong Wang, Yufei Gao
  • Patent number: 7288576
    Abstract: Methods have been developed to form catalysts having active metals disposed on a carbon nanotube coated porous substrate. Catalysts and reactions over nanotube-containing catalysts are also disclosed. Results are presented showing enhanced performance resulting from use of the inventive catalyst. Mesoporous oxide layers can be utilized to improve catalyst properties.
    Type: Grant
    Filed: December 17, 2005
    Date of Patent: October 30, 2007
    Assignee: Battelle Memorial Institute
    Inventors: Yong Wang, Ya-Huei Chin, Yufei Gao
  • Publication number: 20060167120
    Abstract: Methods have been developed to form catalysts having active metals disposed on a carbon nanotube coated porous substrate. Catalysts and reactions over nanotube-containing catalysts are also disclosed. Results are presented showing enhanced performance resulting from use of the inventive catalyst. Mesoporous oxide layers can be utilized to improve catalyst properties.
    Type: Application
    Filed: December 17, 2005
    Publication date: July 27, 2006
    Inventors: Yong Wang, Ya-Huei Chin, Yufei Gao
  • Publication number: 20060148910
    Abstract: The present invention includes a catalyst structure and method of making the catalyst structure for Fischer-Tropsch synthesis that both rely upon the catalyst structure having a first porous structure with a first pore surface area and a first pore size of at least about 0.1 ?m, preferably from about 10 ?m to about 300 ?m. A porous interfacial layer with a second pore surface area and a second pore size less than the first pore size is placed upon the first pore surface area. Finally, a Fischer-Tropsch catalyst selected from the group consisting of cobalt, ruthenium, iron and combinations thereof is placed upon the second pore surface area. Further improvement is achieved by using a microchannel reactor wherein the reaction chamber walls define a microchannel with the catalyst structure placed therein through which pass reactants. The walls may separate the reaction chamber from at least one cooling chamber. The present invention also includes a method of Fischer-Tropsch synthesis.
    Type: Application
    Filed: February 27, 2006
    Publication date: July 6, 2006
    Inventors: Yong Wang, David Vanderwiel, Anna Tonkovich, Yufei Gao, Eddie Baker
  • Patent number: 7045486
    Abstract: The present invention includes a catalyst structure and method of making the catalyst structure for Fischer-Tropsch synthesis that both rely upon the catalyst structure having a first porous structure with a first pore surface area and a first pore size of at least about 0.1 ?m, preferably from about 10 ?m to about 300 ?m. A porous interfacial layer with a second pore surface area and a second pore size less than the first pore size is placed upon the first pore surface area. Finally, a Fischer-Tropsch catalyst selected from the group consisting of cobalt, ruthenium, iron and combinations thereof is placed upon the second pore surface area. Further improvement is achieved by using a microchannel reactor wherein the reaction chamber walls define a microchannel with the catalyst structure is placed therein through which pass reactants. The walls may separate the reaction chamber from at least one cooling chamber. The present invention also includes a method of Fischer-Tropsch synthesis.
    Type: Grant
    Filed: September 19, 2003
    Date of Patent: May 16, 2006
    Assignee: Battelle Memorial Institute
    Inventors: Yong Wang, David P. Vanderwiel, Anna Lee Y. Tonkovich, Yufei Gao, Eddie G. Baker
  • Patent number: 7045114
    Abstract: Reactors and processes are disclosed that can utilize high heat fluxes to obtain fast, steady-state reaction rates. Porous catalysts used in conjunction with microchannel reactors to obtain high rates of heat transfer are also disclosed. Reactors and processes that utilize short contact times, high heat flux and low pressure drop are described. Improved methods of steam reforming are also provided.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: May 16, 2006
    Assignee: Battelle Memorial Institute
    Inventors: Anna Lee Y. Tonkovich, Yong Wang, Robert S. Wegeng, Yufei Gao