Patents by Inventor Dan Hou

Dan Hou 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: 11912962
    Abstract: This provides a flexible, porous, dissolvable solid sheet article containing a cationic surfactant.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: February 27, 2024
    Assignee: The Procter & Gamble Company
    Inventors: Dan Xu, Hongsing Tan, Juan Yang, Na Hou, Carl David Mac Namara, Yongli Pan
  • Publication number: 20230249999
    Abstract: The present invention provides a sewage treatment biological agent and a preparation method and application thereof. The sewage treatment biological agent according to an embodiment of the present invention includes an induced nucleus. The induced nucleus has good bioaffinity. A microbial flora can be attached to the induced nucleus to achieve rapid growth. As the microbial flora gathers and grows on the induced nucleus, the granulation is gradually achieved by the sewage treatment biological agent to facilitate the sewage treatment. The microbial flora grows on the induced nucleus, and the growth process of microbial flora is a covering growth process which starts from the induced nucleus and gradually expands outward and centers on the induced nucleus. During the growth of microbial flora, extracellular polymers are secreted, which can further promote the granulation process by the sewage treatment biological agent.
    Type: Application
    Filed: October 9, 2022
    Publication date: August 10, 2023
    Applicant: Hunan Sanyou Environmental Protection Technology Co. LTD
    Inventors: Yan ZHONG, Dan HOU, Hongbo HAN, Jing YI
  • Patent number: 11629083
    Abstract: The present invention relates to microbial carriers for wastewater treatment, and in particular, relates to an organic composite powder carrier and its application for strengthening biological denitrification in municipal wastewater treatment. The organic composite powder carrier is compounded by a microbial carrier with a relatively large equivalent particle size and an organic alternative carbon source in the form of ultrafine powder. The composite powder carrier in the present invention includes a dedicated organic alternative carbon source, such as polyhydroxyalkanoates (PHA). The organic alternative carbon source can exclude the competitive relationship between microorganisms to ensure that denitrifying bacteria exclusively obtain electron donors required for denitrification.
    Type: Grant
    Filed: August 12, 2020
    Date of Patent: April 18, 2023
    Assignees: TONGJI UNIVERSITY, HUNAN SANYOU ENVIRONMENTAL TECHNOLOGY CO., LTD
    Inventors: Xiaohu Dai, Xiaoli Chai, Bin Lu, Dan Hou, Hongbo Han, Yue Mou, Jing Yi
  • Publication number: 20220388881
    Abstract: The invention relates to a new biological fluidized bed process with high concentration powder carriers used for the treatment of municipal wastewater, which is a fluidized bed system based on the principle of sewage biochemical treatment, by adding a compound powder carrier to the biochemical tank, and forming a high concentration mixture after mixing and microbial attachment; the sludge mixture after the reaction is concentrated and separated, and then enters the compound powder carrier cyclone separation and recovery system, which can separate most of the compound powder carrier from the discharged excess sludge, and then return to the biochemical tank for recycling. The highly integrated municipal wastewater treatment process proposed in the invention has high treatment efficiency, small occupation area, low operation energy consumption, and can realize the doubling of sewage treatment capacity and the improvement of effluent water quality without adding additional occupancy.
    Type: Application
    Filed: August 10, 2022
    Publication date: December 8, 2022
    Inventors: Xiaoli CHAI, Yue MU, Jing YI, Zeheng TANG, Hongbo HAN, Dan HOU
  • Patent number: 11472725
    Abstract: A recovery system of composite powder carrier in HPB municipal wastewater treatment includes a biochemical tank and a concentration tank. The composite powder carrier is added to the biochemical tank for biochemically treating on the wastewater. The mixed liquid is then made to flow into the concentration tank. The supernatant obtained after filtration is then discharged. The concentrated sludge is returned to the biochemical tank, and the excess concentrated sludge is transported to a separator. The separator separates the substances with large specific gravity from those having smaller specific gravity, and the substances with large specific gravity are recycled to the biochemical tank for reuse. Matter having smaller specific gravity is discharged. The separator can be used to separate the composite powder carriers for recycling, which improves the utilization rate of the composite powder carriers and reduces the operation cost of the HPB technology for wastewater treatment.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: October 18, 2022
    Assignees: TONGJI UNIVERSITY, HUNAN SANYOU ENVIRONMENTAL TECHNOLOGY CO., LTD
    Inventors: Xiaohu Dai, Xiaoli Chai, Bin Lu, Dan Hou, Hongbo Han, Yue Mou, Jing Yi
  • Publication number: 20210130210
    Abstract: The present invention relates to microbial carriers for wastewater treatment, and in particular, relates to an organic composite powder carrier and its application for strengthening biological denitrification in municipal wastewater treatment. The organic composite powder carrier is compounded by a microbial carrier with a relatively large equivalent particle size and an organic alternative carbon source in the form of ultrafine powder. The composite powder carrier in the present invention includes a dedicated organic alternative carbon source, such as polyhydroxyalkanoates (PHA). The organic alternative carbon source can exclude the competitive relationship between microorganisms to ensure that denitrifying bacteria exclusively obtain electron donors required for denitrification.
    Type: Application
    Filed: August 12, 2020
    Publication date: May 6, 2021
    Applicants: Tongji University, Hunan Sanyou Environmental Technology Co., LTD
    Inventors: Xiaohu DAI, Xiaoli CHAI, Bin LU, Dan HOU, Hongbo HAN, Yue MOU, Jing YI
  • Publication number: 20210130205
    Abstract: A recovery system of composite powder carrier in HPB municipal wastewater treatment includes a biochemical tank and a concentration tank. The composite powder carrier is added to the biochemical tank for biochemically treating on the wastewater. The mixed liquid is then made to flow into the concentration tank. The supernatant obtained after filtration is then discharged. The concentrated sludge is returned to the biochemical tank, and the excess concentrated sludge is transported to a separator. The separator separates the substances with large specific gravity from those having smaller specific gravity, and the substances with large specific gravity are recycled to the biochemical tank for reuse. Matter having smaller specific gravity is discharged. The separator can be used to separate the composite powder carriers for recycling, which improves the utilization rate of the composite powder carriers and reduces the operation cost of the HPB technology for wastewater treatment.
    Type: Application
    Filed: August 19, 2020
    Publication date: May 6, 2021
    Applicants: Tongji University, Hunan Sanyou Environmental Technology Co., LTD
    Inventors: Xiaohu DAI, Xiaoli CHAI, Bin LU, Dan HOU, Hongbo HAN, Yue MOU, Jing YI
  • Publication number: 20200262729
    Abstract: The present invention relates in general to municipal wastewater treatment, and in particular, to a new biological fluidized bed process with high concentration powder carriers used for the treatment of municipal wastewater, wherein the process comprises: flowing the wastewater through a coarse screen and a lifting pump firstly, lifting to a fine screen and grit chamber, and then entering a HPB biochemical tank; dividing the HPB biochemical tank successively into an anaerobic zone, an anoxic zone, an aerobic zone and a concentrated separation zone along the flow direction of the wastewater, adding a compound powder carrier to the anaerobic zone, the anoxic zone and the aerobic zone respectively, and stirring and mixing into a mixture; flowing the mixture into the concentrated separation zone and concentrating and separating, returning the concentrate back to the anaerobic zone; discharging the supernatant from the concentrated separation zone and successively transporting through a high-efficient clarificatio
    Type: Application
    Filed: February 19, 2020
    Publication date: August 20, 2020
    Inventors: Xiaoli Chai, Yue Mu, Jing Yi, Zeheng Tang, Hongbo Han, Dan Hou
  • Patent number: 10439710
    Abstract: A passive wavelength division mobile fronthaul network system includes a central office end, a remote end, a trunk optical fiber; a first transport unit, configured to transport, on one end of the trunk optical fiber, detection light to the trunk optical fiber; a second transport unit, configured to transport, on the other end of the trunk optical fiber, the detection light from the trunk optical fiber to each branch of the remote end; and a reflector, deployed on an end of each branch of the remote end for reflecting the detection light. The first transport unit combines the detection light to the trunk optical fiber, the second transport unit transmits, on the remote end, the detection light from the trunk optical fiber to each branch of the remote end, and finally, the reflector returns the detection light along the original path.
    Type: Grant
    Filed: September 11, 2018
    Date of Patent: October 8, 2019
    Assignee: T&S Communications Co., Ltd.
    Inventors: Dan Hou, Shu Huang, Jindong Wu
  • Publication number: 20190028190
    Abstract: A passive wavelength division mobile fronthaul network system includes a central office end, a remote end, a trunk optical fiber; a first transport unit, configured to transport, on one end of the trunk optical fiber, detection light to the trunk optical fiber; a second transport unit, configured to transport, on the other end of the trunk optical fiber, the detection light from the trunk optical fiber to each branch of the remote end; and a reflector, deployed on an end of each branch of the remote end for reflecting the detection light. The first transport unit combines the detection light to the trunk optical fiber, the second transport unit transmits, on the remote end, the detection light from the trunk optical fiber to each branch of the remote end, and finally, the reflector returns the detection light along the original path.
    Type: Application
    Filed: September 11, 2018
    Publication date: January 24, 2019
    Inventors: Dan Hou, Shu Huang, Jindong Wu
  • Publication number: 20170287227
    Abstract: Embodiments that relate to sharing mixed reality experiences among multiple display devices are disclosed. In one embodiment, a method includes receiving current versions of a plurality of data subtypes geo-located at a keyframe location. A world map data structure is updated to include the current versions, and a neighborhood request including the keyframe location is received from a display device. Based on the keyframe location, an identifier and current version indicator for each data subtype is provided to the device. A data request from the device for two or more of the data subtypes is received, and the two or more data subtypes are prioritized based on a priority hierarchy. Based on the prioritization, current versions of the data subtypes are sequentially provided to the device for augmenting an appearance of a mixed reality environment.
    Type: Application
    Filed: June 14, 2017
    Publication date: October 5, 2017
    Applicant: Microsoft Technology Licensing, LLC
    Inventors: Gavin Lazarow, Frederik Schaffalitzky, Dan Hou
  • Patent number: 9685003
    Abstract: Embodiments that relate to sharing mixed reality experiences among multiple display devices are disclosed. In one embodiment, a method includes receiving current versions of a plurality of data subtypes geo-located at a keyframe location. A world map data structure is updated to include the current versions, and a neighborhood request including the keyframe location is received from a display device. Based on the keyframe location, an identifier and current version indicator for each data subtype is provided to the device. A data request from the device for two or more of the data subtypes is received, and the two or more data subtypes are prioritized based on a priority hierarchy. Based on the prioritization, current versions of the data subtypes are sequentially provided to the device for augmenting an appearance of a mixed reality environment.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: June 20, 2017
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Gavin Lazarow, Frederik Schaffalitzky, Dan Hou
  • Patent number: 9166500
    Abstract: A power conversion system is disclosed including a DC bus for receiving DC power, a power converter for converting the DC power to AC power, and a controller. The controller includes an active power regulator for generating a phase angle command signal, a reactive power regulator for generating a voltage magnitude command, and an active power (P) and reactive power (Q) decoupling unit for decoupling interaction between the active and reactive power regulators. The PQ decoupling unit includes an active power compensation element and a reactive power compensation element. The active power compensation element is used for generating a phase angle compensation signal based on a reactive power error signal, to compensate the phase angle command signal. The reactive power compensation element is used for generating a voltage magnitude compensation signal based on an active power error signal, to compensate the voltage magnitude command signal.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: October 20, 2015
    Assignee: General Electric Company
    Inventors: Xinhui Wu, Jiao Liu, Dan Hou, Xueqin Wu, Zhuohui Tan
  • Patent number: 8941644
    Abstract: This document describes techniques for creating three-dimensional models of image collections using a network-accessible (e.g., cloud-based) computation service, rather than a client computing device. In some instances described below, the computation service performs at least a portion of the operations for creating these models in parallel.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: January 27, 2015
    Assignee: Microsoft Corporation
    Inventors: Wenwu Zhu, Siyuan Tang, Roberto R. Molinari, Dan Hou
  • Publication number: 20140354685
    Abstract: Embodiments that relate to sharing mixed reality experiences among multiple display devices are disclosed. In one embodiment, a method includes receiving current versions of a plurality of data subtypes geo-located at a keyframe location. A world map data structure is updated to include the current versions, and a neighborhood request including the keyframe location is received from a display device. Based on the keyframe location, an identifier and current version indicator for each data subtype is provided to the device. A data request from the device for two or more of the data subtypes is received, and the two or more data subtypes are prioritized based on a priority hierarchy. Based on the prioritization, current versions of the data subtypes are sequentially provided to the device for augmenting an appearance of a mixed reality environment.
    Type: Application
    Filed: June 3, 2013
    Publication date: December 4, 2014
    Inventors: Gavin Lazarow, Frederik Schaffalitzky, Dan Hou
  • Publication number: 20140307494
    Abstract: A power conversion system is disclosed including a DC bus for receiving DC power, a power converter for converting the DC power to AC power, and a controller. The controller includes an active power regulator for generating a phase angle command signal, a reactive power regulator for generating a voltage magnitude command, and an active power (P) and reactive power (Q) decoupling unit for decoupling interaction between the active and reactive power regulators. The PQ decoupling unit includes an active power compensation element and a reactive power compensation element. The active power compensation element is used for generating a phase angle compensation signal based on a reactive power error signal, to compensate the phase angle command signal. The reactive power compensation element is used for generating a voltage magnitude compensation signal based on an active power error signal, to compensate the voltage magnitude command signal.
    Type: Application
    Filed: March 24, 2014
    Publication date: October 16, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Xinhui WU, Jiao LIU, Dan HOU, Xueqin WU, Zhuohui TAN
  • Patent number: 8611643
    Abstract: Photographs of an object may be oriented with respect to both the geographic location and orientation of the object by registering a 3D model derived from a plurality of photographs of the objects with a 2D image of the object having a known location and orientation. For example, a 3D point cloud of an object created from photographs of the object using a Photosynthâ„¢ tool may be aligned with a satellite photograph of the object, where the satellite photograph has location and orientation information. A tool providing scaling and rotation of the 3D model with respect to the 2D image may be used or an automatic alignment may be performed using a function based on object edges filtered at particular angles. Once aligned, data may be recorded that registers camera locations for the plurality of photographs with geographic coordinates of the object, either absolute latitude/longitude or relative to the object.
    Type: Grant
    Filed: September 14, 2012
    Date of Patent: December 17, 2013
    Assignee: Microsoft Corporation
    Inventors: Eyal Ofek, Dan Hou, Blaise Aguera y Arcas, Scott Vernon Fynn, Roberto R. Molinari, Michael Kroepfl, Tony Ernst
  • Publication number: 20130009954
    Abstract: Photographs of an object may be oriented with respect to both the geographic location and orientation of the object by registering a 3D model derived from a plurality of photographs of the objects with a 2D image of the object having a known location and orientation. For example, a 3D point cloud of an object created from photographs of the object using a Photosynthâ„¢ tool may be aligned with a satellite photograph of the object, where the satellite photograph has location and orientation information. A tool providing scaling and rotation of the 3D model with respect to the 2D image may be used or an automatic alignment may be performed using a function based on object edges filtered at particular angles. Once aligned, data may be recorded that registers camera locations for the plurality of photographs with geographic coordinates of the object, either absolute latitude/longitude or relative to the object.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: MICROSOFT CORPORATION
    Inventors: Eyal Ofek, Dan Hou, Blaise Aguera y Arcas, Scott Vernon Fynn, Roberto R. Molinari, Michael Kroepfl, Tony Ernst
  • Publication number: 20120320032
    Abstract: This document describes techniques for creating three-dimensional models of image collections using a network-accessible (e.g., cloud-based) computation service, rather than a client computing device. In some instances described below, the computation service performs at least a portion of the operations for creating these models in parallel.
    Type: Application
    Filed: June 14, 2011
    Publication date: December 20, 2012
    Applicant: Microsoft Corporation
    Inventors: Wenwu Zhu, Siyuan Tang, Roberto R. Molinari, Dan Hou
  • Patent number: 8295589
    Abstract: Photographs of an object may be oriented with respect to both the geographic location and orientation of the object by registering a 3D model derived from a plurality of photographs of the objects with a 2D image of the object having a known location and orientation. For example, a 3D point cloud of an object created from photographs of the object using a Photosynthâ„¢ tool may be aligned with a satellite photograph of the object, where the satellite photograph has location and orientation information. A tool providing scaling and rotation of the 3D model with respect to the 2D image may be used or an automatic alignment may be performed using a function based on object edges filtered at particular angles. Once aligned, data may be recorded that registers camera locations for the plurality of photographs with geographic coordinates of the object, either absolute latitude/longitude or relative to the object.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: October 23, 2012
    Assignee: Microsoft Corporation
    Inventors: Eyal Ofek, Dan Hou, Blaise Aguera y Arcas, Scott Vernon Fynn, Roberto R. Molinari, Michael Kroepfl, Tony Ernst