Patents by Inventor Xueyuan Liu

Xueyuan 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).

  • Publication number: 20240128650
    Abstract: An antenna filter unit and a base station having the antenna filter unit are disclosed. The antenna filter unit according to an embodiment comprises a dielectric body that defines a plurality of single-mode resonators each including a tuning hole. At least one slot is formed on a surface of the dielectric body to serve as an antenna radiator. The at least one slot is coupled to at least one of the resonators.
    Type: Application
    Filed: February 20, 2021
    Publication date: April 18, 2024
    Inventors: Xueyuan Zhang, Bingjian Niu, Mengyang Jia, Yang Liu
  • Publication number: 20240100194
    Abstract: Provided herein are targeting peptides and vectors containing a sequence that encodes the targeting peptides that deliver agents to specific substructures in the brain.
    Type: Application
    Filed: October 20, 2023
    Publication date: March 28, 2024
    Applicant: The Children’s Hospital of Philadelphia
    Inventors: Beverly DAVIDSON, Yonghong CHEN, Paul T. RANUM, Xueyuan LIU
  • Publication number: 20240100175
    Abstract: A conjugate compounds or pharmaceutically acceptable salt thereof, comprises a payload and two or more kinds of cell-interacting molecules. The cell-interacting molecules are ligands capable of specifically binding to a cell surface receptor. A method of treating diseases, comprises delivering a payload to a subject.
    Type: Application
    Filed: October 6, 2022
    Publication date: March 28, 2024
    Inventors: Baohua Robert HUANG, Jian DIA, Zhongbo WANG, Xueyuan XIE, Xiaodong LIU, Xinli HU
  • Publication number: 20230346981
    Abstract: Provided herein are targeting peptides and vectors containing a sequence that encodes the targeting peptides that deliver agents to specific substructures in the brain. Provided herein are viral vectors each comprising a modified capsid, wherein the modified capsid comprises at least one amino acid sequence that targets the viral vector to a distinct brain structure.
    Type: Application
    Filed: November 20, 2020
    Publication date: November 2, 2023
    Applicant: The Children's Hospital of Philadelphia
    Inventors: Beverly DAVIDSON, Yonghong CHEN, Paul T. RANUM, Xueyuan LIU
  • Patent number: 8294802
    Abstract: A charge-coupled device (CCD) image sensor includes a layer of a semiconductor material having a first conductivity type. A horizontal CCD channel region of a second conductivity type is disposed in the layer of the semiconductor material. The horizontal CCD channel region includes multiple phases that are used to shift photo-generated charge through the horizontal CCD channel region. Distinct overflow drain regions are disposed in the layer of semiconducting material, with an overflow drain region electrically connected to only one particular phase of the horizontal CCD channel region.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: October 23, 2012
    Assignee: Truesense Imaging, Inc.
    Inventors: Shen Wang, Xueyuan Liu
  • Publication number: 20110102658
    Abstract: A charge-coupled device (CCD) image sensor includes a layer of a semiconductor material having a first conductivity type. A horizontal CCD channel region of a second conductivity type is disposed in the layer of the semiconductor material. The horizontal CCD channel region includes multiple phases that are used to shift photo-generated charge through the horizontal CCD channel region. Distinct overflow drain regions are disposed in the layer of semiconducting material, with an overflow drain region electrically connected to only one particular phase of the horizontal CCD channel region.
    Type: Application
    Filed: October 30, 2009
    Publication date: May 5, 2011
    Inventors: Shen Wang, Xueyuan Liu
  • Patent number: 7298954
    Abstract: An improved waveguide shuttle optical switch design which provides the function of a variable optical attenuator (VOA). A small degree of intentional misalignment of the waveguide will create different levels of optical attenuation. By finely controlling the misalignment of a selected switched position, a single device may be realized that will provide the functions of both switching and attenuating or just attenuation alone. The optical MEMS device utilizes a latching mechanism in association with a thermal drive actuator for aligning a waveguide shuttle platform. The integration of the switching function and the VOA function reduce the optical loss which is otherwise unavoidable when the inevitable alternative of a separate switch and a separate VOA must necessarily be employed. The resultant improved device can also be applied for correcting the difference in optical intensity created by the manufacturing tolerances inherent in the fabrication of array waveguide gratings.
    Type: Grant
    Filed: June 16, 2005
    Date of Patent: November 20, 2007
    Assignee: Xerox Corporation
    Inventors: Xueyuan Liu, Peter M. Gulvin, Kristine A. German, Yao Rong Wang, Jun Ma, Pinyen Lin, Joel A. Kubby, Kathleen A. Feinberg
  • Patent number: 7242825
    Abstract: An improved cantilever beam optical switch design which provides the function of a variable optical attenuator (VOA). A small degree of intentional misalignment of the waveguide will create different levels of optical attenuation. By finely controlling the misalignment of a selected switched position, a single device may be realized that will provide the functions of both switching and attenuating or just attenuation alone. The optical MEMS device utilizes a latching mechanism in association with a thermal drive actuator for aligning a cantilever beam platform. The integration of the switching function and the VOA function reduce the optical loss which is otherwise unavoidable when the inevitable alterative of a separate switch and a separate VOA must necessarily be employed. The resultant improved device can also be applied for correcting the difference in optical intensity created by the manufacturing tolerances inherent in the fabrication of array waveguide gratings.
    Type: Grant
    Filed: December 13, 2004
    Date of Patent: July 10, 2007
    Assignee: Xerox Corporation
    Inventors: Pinyen Lin, Yao Rong Wang, Jun Ma, Xueyuan Liu, Peter M. Gulvin, Kristine A. German, Joel A. Kubby
  • Publication number: 20060291794
    Abstract: An improved waveguide shuttle optical switch design which provides the function of a variable optical attenuator (VOA). A small degree of intentional misalignment of the waveguide will create different levels of optical attenuation. By finely controlling the misalignment of a selected switched position, a single device may be realized that will provide the functions of both switching and attenuating or just attenuation alone. The optical MEMS device utilizes a latching mechanism in association with a thermal drive actuator for aligning a waveguide shuttle platform. The integration of the switching function and the VOA function reduce the optical loss which is otherwise unavoidable when the inevitable alternative of a separate switch and a separate VOA must necessarily be employed. The resultant improved device can also be applied for correcting the difference in optical intensity created by the manufacturing tolerances inherent in the fabrication of array waveguide gratings.
    Type: Application
    Filed: June 16, 2005
    Publication date: December 28, 2006
    Inventors: Xueyuan Liu, Peter Gulvin, Kristine German, Yao Wang, Jun Ma, Pinyen Lin, Joel Kubby, Kathleen Feinberg
  • Patent number: 7116880
    Abstract: First and second ridge type photonic waveguides are provided. Each of the waveguides includes a core layer and a reflective cladding layer in continuous contact with a first side of a core layer. The core layer has a core index of the refraction and is formed in a ridge in a dimension and shape to impose lateral confinement. The reflective cladding layer has an index of refraction that is substantially different than the core index of refraction. An inter-waveguide slab portion is provided between the first and second waveguides. A substrate supports the first and second waveguides, the slab portion, and the reflective cladding layer. A light interceptor region is provided to hinder a transfer of photons between the first and second waveguides through the inter-waveguides slab portion. The light interceptor region may include a trench region, which is an air gap in one embodiment.
    Type: Grant
    Filed: June 30, 2005
    Date of Patent: October 3, 2006
    Assignee: Xerox Corporation
    Inventors: Xueyuan Liu, Yao Rong Wang, Kristine A. German, Peter M. Gulvin
  • Publication number: 20060127029
    Abstract: An improved cantilever beam optical switch design which provides the function of a variable optical attenuator (VOA). A small degree of intentional misalignment of the waveguide will create different levels of optical attenuation. By finely controlling the misalignment of a selected switched position, a single device may be realized that will provide the functions of both switching and attenuating or just attenuation alone. The optical MEMS device utilizes a latching mechanism in association with a thermal drive actuator for aligning a cantilever beam platform. The integration of the switching function and the VOA function reduce the optical loss which is otherwise unavoidable when the inevitable alterative of a separate switch and a separate VOA must necessarily be employed. The resultant improved device can also be applied for correcting the difference in optical intensity created by the manufacturing tolerances inherent in the fabrication of array waveguide gratings.
    Type: Application
    Filed: December 13, 2004
    Publication date: June 15, 2006
    Inventors: Pinyen Lin, Yao Wang, Jun Ma, Xueyuan Liu, Peter Gulvin, Kristine German, Joel Kubby
  • Patent number: 6987920
    Abstract: A waveguide structure has a base having a base height (h) above a substrate and a rectangular waveguide having a waveguide height (H) above the substrate and a waveguide width (W) between opposing sides of the waveguide.
    Type: Grant
    Filed: June 28, 2004
    Date of Patent: January 17, 2006
    Assignee: Xerox Corporation
    Inventors: Kristine A. German, Peter M. Gulvin, Joel A. Kubby, Pinyen Lin, Xueyuan Liu, Yao Rong Wang
  • Publication number: 20050286850
    Abstract: A waveguide structure has a base having a base height (h) above a substrate and a rectangular waveguide having a waveguide height (H) above the substrate and a waveguide width (W) between opposing sides of the waveguide.
    Type: Application
    Filed: June 28, 2004
    Publication date: December 29, 2005
    Inventors: Kristine German, Peter Gulvin, Joel Kubby, Pinyen Lin, Xueyuan Liu, Yao Wang