Patents by Inventor Guanghua Yu

Guanghua Yu 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: 11620815
    Abstract: A method for detecting an object in an image includes: obtaining an image to be detected; generating a plurality of feature maps based on the image to be detected by a plurality of feature extracting networks in a neural network model trained for object detection, in which the plurality of feature extracting networks are connected sequentially, and input data of a latter feature extracting network in the plurality of feature extracting networks is based on output data and input data of a previous feature extracting network; and generating an object detection result based on the plurality of feature maps by an object detecting network in the neural network model.
    Type: Grant
    Filed: October 6, 2022
    Date of Patent: April 4, 2023
    Assignee: BEIJING BAIDU NETCOM SCIENCE TECHNOLOGY CO., LTD.
    Inventors: Guanghua Yu, Qingqing Dang, Haoshuang Wang, Guanzhong Wang, Xiaoguang Hu, Dianhai Yu, Yanjun Ma, Qiwen Liu, Can Wen
  • Publication number: 20230031579
    Abstract: A method for detecting an object in an image includes: obtaining an image to be detected; generating a plurality of feature maps based on the image to be detected by a plurality of feature extracting networks in a neural network model trained for object detection, in which the plurality of feature extracting networks are connected sequentially, and input data of a latter feature extracting network in the plurality of feature extracting networks is based on output data and input data of a previous feature extracting network; and generating an object detection result based on the plurality of feature maps by an object detecting network in the neural network model.
    Type: Application
    Filed: October 6, 2022
    Publication date: February 2, 2023
    Inventors: Guanghua YU, Qingqing DANG, Haoshuang WANG, Guanzhong WANG, Xiaoguang HU, Dianhai YU, Yanjun MA, Qiwen LIU, Can WEN
  • Patent number: 7727394
    Abstract: A filter system and method of filtering a feed liquid utilizing a combined plurality of filter assemblies. Each filter assembly includes a filter housing, a filter cartridge and a spiral passageway for imparting secondary flow currents, particularly Dean-Flow currents, to fluid flowing within the spiral passageways to prevent particulate build-up on filter surfaces so as to extend filter life and duration between replacement. The filter system can be operated within positive or negative pressure filtration processes. A dual-stage filtration process utilizing a cap filter and a cylindrical depth filter is also disclosed.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: June 1, 2010
    Assignee: Dual Vortex Microfiltration, LLC
    Inventors: Clinton V. Kopp, Guanghua Yu, Chang-Wie Jen
  • Patent number: 7285209
    Abstract: The invention discloses an apparatus for filtration of water from hydrocarbons comprised of a fresh-feed inlet, a first dead end filter, that is hydrophobic, a second sweeping-flow filter, that is hydrophobic, a common housing containing both the first and second filters, a system for the recirculation of the retentate, a chamber for water settling, and an outlet for clean fuel permeate. This invention takes advantage of the properties of the functional groups of a surfactant, by using the surfactant to allow a hydrophobic medium to attract water, attach the water molecules to the hydrophobic medium, and then allow for agglomeration of the water molecules, which finally become large enough to detach and be swept away by the sweeping-flow. This invention can thus be used to remove high concentrations of water, up to 5%, in hydrocarbons, while allowing a high flow rate by preventing blockage of the final filter by water.
    Type: Grant
    Filed: June 9, 2004
    Date of Patent: October 23, 2007
    Inventors: Guanghua Yu, Chang-Wei Jen, Montfort Thierry
  • Publication number: 20070163941
    Abstract: A filter system and method of filtering a feed liquid utilizing a combined plurality of filter assemblies. Each filter assembly includes a filter housing, a filter cartridge and a spiral passageway for imparting secondary flow currents, particularly Dean-Flow currents, to fluid flowing within the spiral passageways to prevent particulate build-up on filter surfaces so as to extend filter life and duration between replacement. The filter system can be operated within positive or negative pressure filtration processes. A dual-stage filtration process utilizing a cap filter and a cylindrical depth filter is also disclosed.
    Type: Application
    Filed: October 30, 2006
    Publication date: July 19, 2007
    Inventors: Clinton Kopp, Guanghua Yu, Chang-Wie Jen
  • Publication number: 20040222156
    Abstract: The invention discloses an apparatus for filtration of water from hydrocarbons comprised of a fresh-feed inlet, a first dead end filter, that is hydrophobic, a second sweeping-flow filter, that is hydrophobic, a common housing containing both the first and second filters, a system for the recirculation of the retentate, a chamber for water settling, and an outlet for clean fuel permeate. This invention takes advantage of the properties of the functional groups of a surfactant, by using the surfactant to allow a hydrophobic medium to attract water, attach the water molecules to the hydrophobic medium, and then allow for agglomeration of the water molecules, which finally become large enough to detach and be swept away by the sweeping-flow. This invention can thus be used to remove high concentrations of water, up to 5%, in hydrocarbons, while allowing a high flow rate by preventing blockage of the final filter by water.
    Type: Application
    Filed: June 9, 2004
    Publication date: November 11, 2004
    Inventors: Guanghua Yu, Chang-Wei Jen, Thierry Montfort
  • Patent number: 6764598
    Abstract: The invention discloses an apparatus for filtration of water from hydrocarbons comprised of a fresh-feed inlet, a first dead end filter, having a filter medium that is hydrophobic, a second cross-flow filter, having a membrane that is hydrophobic, a common housing to contain both the first and second filters, a system for the recirculation of the retentate, a chamber for water settling, and an outlet for clean fuel permeate. This invention takes advantage of the properties of the functional groups of a surfactant, by using the surfactant to allow a hydrophobic medium to attract water, attach the water molecules to the hydrophobic medium, and then allow for agglomeration of the water molecules, which finally become large enough to detach and be swept away by the cross-flow. The hydrocarbon may then pass through the second membrane filter uncontaminated by water and be used as clean fuel.
    Type: Grant
    Filed: December 28, 2001
    Date of Patent: July 20, 2004
    Assignee: Filtration Solutions, Inc.
    Inventors: Guanghua Yu, Chang-Wei Jen, Montfort Thierry
  • Publication number: 20030121858
    Abstract: The invention discloses an apparatus for filtration of water from hydrocarbons comprised of a fresh-feed inlet, a first dead end filter, having a filter medium that is hydrophobic, a second cross-flow filter, having a membrane that is hydrophobic, a common housing to contain both the first and second filters, a system for the recirculation of the retentate, a chamber for water settling, and an outlet for clean fuel permeate. This invention takes advantage of the properties of the functional groups of a surfactant, by using the surfactant to allow a hydrophobic medium to attract water, attach the water molecules to the hydrophobic medium, and then allow for agglomeration of the water molecules, which finally become large enough to detach and be swept away by the cross-flow. The hydrocarbon may then pass through the second membrane filter uncontaminated by water and be used as clean fuel.
    Type: Application
    Filed: December 28, 2001
    Publication date: July 3, 2003
    Inventors: Guanghua Yu, Chang-Wei Jen, Montfort Thierry
  • Patent number: 5993674
    Abstract: Rotary disc filtration devices and filtration processes using those devices are disclosed. The devices have one or more fluid filtration gaps into which fluid to be filtered into permeate and retentate is placed. Each fluid filtration gap is defined by a disc and a filter, one of which rotates with respect to the other. The filter is carried on a filter support member. Fresh feed is introduced to each fluid filtration gap near the longitudinal axis of the shaft on which the discs are rotated. Holes through the disc in the active area of the disc, which is the area opposite the filter, counteract the tendency of the disc and filter to move towards one another.
    Type: Grant
    Filed: February 24, 1998
    Date of Patent: November 30, 1999
    Assignee: Membrex, Inc.
    Inventors: Philip M. Rolchigo, Leonard T. Hodgins, Guanghua Yu
  • Patent number: 5820690
    Abstract: A cleaning process to remove soil using cleaners exhibiting cloud point behavior (i.e., have a cloud point) and/or in which the cleaner can be recycled is disclosed. The cleaning mixture can be an aqueous cleaning mixture. The temperature can be adjusted so that the cleaning mixture is contacted with the object to be cleaned at a temperature at or above the cloud point temperature, and the temperature and/or composition of spent cleaning mixture can be adjusted so that it is processed to form a soil-enriched stream and a soil-depleted stream while it is below its cloud point temperature. Processing to form the soil-enriched and soil-depleted streams can involve adjusting the system so that at steady state ##EQU1## where C.sub.Washer is the concentration of cleaner in the spent cleaning mixture and C.sub.Washer Target is the desired concentration of cleaner in the cleaning mixture prior to contacting the object to be cleaned.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: October 13, 1998
    Assignee: Membrex, Inc.
    Inventors: Philip M. Rolchigo, Guanghua Yu
  • Patent number: 5707517
    Abstract: Rotary disc filtration devices and filtration processes using those devices are disclosed. The devices have one or more fluid filtration gaps into which fluid to be filtered into permeate and retentate is placed. Each fluid filtration gap is defined by a disc and a filter, one of which rotates with respect to the other. The filter is carried on a filter member. The discs and interleaved filter members may be suspended from the top of the device, the top may rest on a vessel containing the fluid to be filtered, the discs may be attached to a single shaft for rotation, and the filter members may be suspended from a sleeve around the shaft, which sleeve keeps the filters centered with respect to the discs. Removal of the device's top removes the discs and filter members together, facilitating maintenance. Each filter member may have a peripheral lip and the lips of adjacent filter members may be sufficiently close to one another to substantially restrict the flow of retentate out of the fluid filtration gap.
    Type: Grant
    Filed: November 27, 1995
    Date of Patent: January 13, 1998
    Assignee: Membrex, Inc.
    Inventors: Philip M. Rolchigo, Leonard T. Hodgins, Chang W. Jen, Malcolm R. Kahn, Guanghua Yu