Patents by Inventor Fei Han

Fei Han 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).

  • GAS TURBINE ASSEMBLIES AND METHODS
    Publication number: 20190093891
    Abstract: The systems and methods described herein relate to a dome of a gas turbine assembly configured to suppress pressure pulsations. The systems and methods provide a dome having an aperture configured to surround an injector assembly of a combustor. The dome having a front panel extending radially from the aperture. The systems and methods couple a first cavity to the front panel. The first cavity includes a series of ducts. A first duct of the series of ducts is configured to receive airflow into the first cavity from a compressor and a second set of ducts of the series of ducts and a third duct of the series of ducts are configured to direct airflow to the combustor from the first cavity, wherein the third duct has a larger diameter than the second set of ducts.
    Type: Application
    Filed: September 25, 2017
    Publication date: March 28, 2019
    Inventors: Owen Graham, Kwanwoo Kim, Nicholas Magina, Sharath Nagaraja, Fei Han
  • Systems and methods for measuring temperature in a gas turbine using acoustic interference
    Patent number: 10197456
    Abstract: Systems and methods for measuring temperature in a gas turbine are disclosed. The method can include directing a first acoustic signal and a second acoustic signal towards a gas path in a turbine; receiving the first acoustic signal and the second acoustic signal at a downstream gas path location; combining the first acoustic signal and the second acoustic signal to create a combined acoustic signal, wherein the combined acoustic signal forms at least one of either a signal maxima or a signal minima; and based at least in part on the combined acoustic signal, determining a temperature of the gas path.
    Type: Grant
    Filed: August 5, 2016
    Date of Patent: February 5, 2019
    Assignee: General Electric Company
    Inventors: Eamon P. Gleeson, Fei Han
  • Magnetic resonance imaging methods
    Patent number: 10132894
    Abstract: A method of investigating an object using nuclear magnetic resonance (NMR) equipment includes generating a one-dimensional projection of the object for each of a plurality of echoes utilizing echo train signal indications resulting from pulse sequences, and utilizing the plurality of one-dimensional projections, for each of the plurality of echoes, generating NMR image data for at least one location in the object. The NMR image data may be displayed. The displayed data may include a T2 decay curve, a T2 value display, a T2 distribution graph, or petrophysical data for at least one object location.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: November 20, 2018
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Yi-Qiao Song, Fei Han, Jeffrey Paulsen
  • Gas Turbine Engine Fuel Manifold Damper and Method of Dynamics Attenuation
    Publication number: 20180298825
    Abstract: The present disclosure is directed to a fuel manifold assembly for a gas turbine engine. The fuel manifold assembly defines a walled conduit through which a fuel flows in a fuel passage. The walled conduit defines a first end and a second end opposite of the first end along a length of the walled conduit. The fuel manifold assembly includes an exit manifold to which a fuel nozzle attaches. The fuel manifold assembly includes a damper assembly coupled to the walled conduit of the fuel manifold assembly. The damper assembly includes a walled tube extended from the walled conduit. The damper assembly further includes a walled enclosure defining a damper cavity therein. The damper cavity is in fluid communication with a damper passage defined within the walled tube, and the damper passage is in fluid communication with the fuel passage.
    Type: Application
    Filed: April 13, 2017
    Publication date: October 18, 2018
    Inventor: Fei Han
  • PULSE OXIMETRY-BASED CARDIO-PULMONARY RESUSCITATION (CPR) QUALITY FEEDBACK SYSTEMS AND METHODS
    Publication number: 20180207058
    Abstract: Medical devices, plug-ins, systems, and methods for CPR quality feedback are disclosed. The medical devices can calculate peripheral circulation relevant parameters based on measured signals containing at least partial hemodynamic characteristics. Amplitude and area characteristics included in the peripheral circulation relevant parameters can further be determined for providing feedback and control relating to CPR quality during the compression process. Also, compression interruption during CPR can be evaluated based on a pulse waveform generated from the measured signals.
    Type: Application
    Filed: March 21, 2018
    Publication date: July 26, 2018
    Inventors: Jun Xu, Xuezhong Yu, Fei Han, Liangliang Zheng, Huadong Zhu, Cheng Wang, Xiaocui Zhang, Chen Li, Jingming Yang, Xingliang Jin
  • Systems and methods for measuring temperature in a gas turbine using acoustic interference
    Patent number: 9989423
    Abstract: Systems and methods for measuring temperature in a gas turbine are disclosed. The method can include directing a first acoustic signal towards a gas path in a turbine; directing a second acoustic signal towards the gas path in the turbine; receiving the first acoustic signal and the second acoustic signal at a downstream gas path location; combining the first acoustic signal and the second acoustic signal to create a combined acoustic signal, where a portion of the first acoustic signal cancels out a portion of the second acoustic signal; and determining a temperature of the gas path based at least in part on the combined acoustic signal.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: June 5, 2018
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Eamon P. Gleeson, Fei Han
  • Pulse oximetry-based cardio-pulmonary resuscitation (CPR) quality feedback systems and methods
    Patent number: 9949892
    Abstract: Medical devices, plug-ins, systems, and methods for CPR quality feedback are disclosed. The medical devices can calculate peripheral circulation relevant parameters based on measured signals containing at least partial hemodynamic characteristics. Amplitude and area characteristics included in the peripheral circulation relevant parameters can further be determined for providing feedback and control relating to CPR quality during the compression process. Also, compression interruption during CPR can be evaluated based on a pulse waveform generated from the measured signals.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: April 24, 2018
    Assignees: PEKING UNION MEDICAL COLLEGE HOSPITAL, SHENZHEN MINDRAY BIO-MEDICAL ELECTRONICS CO., LTD.
    Inventors: Jun Xu, Xuezhong Yu, Fei Han, Liangliang Zheng, Huadong Zhu, Cheng Wang, Xiaocui Zhang, Chen Li, Jingming Yang, Xingliang Jin
  • Manufacturing method of semiconductor structure
    Patent number: 9922832
    Abstract: A manufacturing method of a semiconductor structure is provided. The manufacturing method of the semiconductor structure includes the following steps: providing a semiconductor substrate, wherein the semiconductor substrate has a first region and a second region surrounding the first region; forming a gate stack and a dummy gate stack in the first region, wherein the dummy gate stack surrounds the gate stack; forming an oxide layer on an exterior wall and a top surface of the dummy gate stack; forming a dummy conductive layer on the gate stack, the dummy gate stack and the oxide layer, wherein the dummy conductive layer has a concave bowl-shaped top surface in the first region; and performing a chemical mechanical polishing (CMP) process on the dummy conductive layer.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: March 20, 2018
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Xiao-Fei Han, Ju-Bao Zhang, Chao Jiang, Hong Liao, Wen-Wen Gong
  • Clickable Control Pad
    Publication number: 20170329426
    Abstract: A clickable control pad, comprising a top part (101), a frame (103), and a mechanical structure (101a, 103b) for guiding a movement of the top part (101) with regard to the frame (103) in a direction perpendicular to the frame (103).
    Type: Application
    Filed: December 22, 2015
    Publication date: November 16, 2017
    Applicant: Home Control Singapore PTE. LTD.
    Inventors: Fei Han, Yuanjing Yuan, Ching Guan Tay, Beng Tee Peh, Whye Kwong Liang
  • CARDIAC PHASE-RESOLVED NON-BREATH-HOLD 3-DIMENSIONAL MAGNETIC RESONANCE ANGIOGRAPHY
    Publication number: 20170273578
    Abstract: 3D cine MR angiography systems and methods are disclosed for use during the steady state intravascular distribution phase of ferumoxytol. The 3D cine MRA technique enables improved delineation of cardiac anatomy in pediatric patients undergoing cardiovascular MRI.
    Type: Application
    Filed: November 8, 2016
    Publication date: September 28, 2017
    Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA
    Inventors: J. Paul Finn, Peng Hu, Fei Han
  • APPARATUS AND METHOD FOR DAMPENING ACOUSTICS
    Publication number: 20170074515
    Abstract: An apparatus for dampening acoustic pressure oscillations of a gas flow contained in part by a combustor wall of a gas turbine engine combustor. The apparatus includes at least one resonating tube with a closed end, an open end, and a cavity therebetween. The cavity is in fluid communication with an interior of the combustor such that the gas flow may flow into and out of the cavity. The apparatus further includes a perforated plate positioned at the open end and including a plurality of apertures. The gas flow flowing into and out of the cavity travels through the apertures.
    Type: Application
    Filed: August 13, 2014
    Publication date: March 16, 2017
    Inventors: Shanwu WANG, Allen Michael DANIS, Fei HAN
  • SYSTEM FOR SUPPRESSING ACOUSTIC NOISE WITHIN A GAS TURBINE COMBUSTOR
    Publication number: 20170058780
    Abstract: In one aspect the present subject matter is directed to a system for suppressing acoustic noise within a combustion section of a gas turbine. The system includes at least one static structure disposed forward of a combustion chamber defined within the combustion section. The static structure at least partially defines a diffuser cavity upstream of the combustion chamber. A baffle plate is coupled to the static structure. The baffle plate and the static structure at least partially define an air plenum within the combustion section forward of the combustion chamber. The baffle plate includes an aperture that provides for fluid communication between the diffuser cavity and the air plenum. The at least one static structure and the baffle plate define a Helmholtz resonator within the combustion section.
    Type: Application
    Filed: August 25, 2015
    Publication date: March 2, 2017
    Inventors: Kwankoo KIM, Fei HAN, Owen GRAHAM
  • Semiconductor structure and method for manufacturing the same
    Patent number: 9524923
    Abstract: A semiconductor structure and a method for manufacturing the same are provided. The semiconductor structure comprises a substrate, a through silicon via hole, an interlayer dielectric, a liner layer and a conductor. The through silicon via hole is formed in the substrate. The interlayer dielectric is formed on the substrate. The interlayer dielectric defines an opening corresponding to the through silicon via hole. The interlayer dielectric comprises a bird beak portion near the through silicon via hole. The liner layer is formed on a bottom and a sidewall of the through silicon via hole. The conductor is filled in the through silicon via hole and the opening.
    Type: Grant
    Filed: March 24, 2015
    Date of Patent: December 20, 2016
    Assignee: UNITED MICROELECTRONICS CORP.
    Inventors: Xiao-Fei Han, Jun Qian, Ju-Bao Zhang
  • Systems and Methods for Measuring Temperature in a Gas Turbine Using Acoustic Interference
    Publication number: 20160341606
    Abstract: Systems and methods for measuring temperature in a gas turbine are disclosed. The method can include directing a first acoustic signal and a second acoustic signal towards a gas path in a turbine; receiving the first acoustic signal and the second acoustic signal at a downstream gas path location; combining the first acoustic signal and the second acoustic signal to create a combined acoustic signal, wherein the combined acoustic signal forms at least one of either a signal maxima or a signal minima; and based at least in part on the combined acoustic signal, determining a temperature of the gas path.
    Type: Application
    Filed: August 5, 2016
    Publication date: November 24, 2016
    Inventors: Eamon P. Gleeson, Fei Han
  • Nested key assembly
    Patent number: 9496103
    Abstract: The invention relates to a nested key assembly (101) that can for example be used in a remote-control, a mobile phone or the like. In general, the key assembly comprises at least one inner-key (130; 140) surrounded by an outer-key (120; 130), wherein the inner-key (130; 140) comprises at least one flexible arm (132; 142) that extends below the outer-key (120; 130) and that directly or indirectly touches a carrier structure (110, 150). In a preferred embodiment, the key assembly comprises an “OK-key”(140) surrounded by a “cursor-key”(130), which in turn is surrounded by a “diamond-key”(120). The OK-key (140) comprises flexible arms (142) that extend below the cursor-key, while the cursor-key (130) comprises flexible arms (132) that extend below the diamond-key (120).
    Type: Grant
    Filed: March 7, 2012
    Date of Patent: November 15, 2016
    Assignee: Home Control SIngapore PTE. LTD.
    Inventor: Fei Han
  • Acoustic resonator located at flow sleeve of gas turbine combustor
    Patent number: 9447971
    Abstract: A system includes a compressor that compresses incoming airflow, and a combustor assembly mixing the compressed incoming airflow with fuel and combusting the air and fuel mixture in a combustion zone. The combustor assembly includes a hot side downstream of the combustion zone and a cold side upstream of the combustion zone. The system also includes a turbine receiving products of combustion from the combustor. The combustor assembly includes a resonator positioned in the cold side of the combustor assembly in an annular passage between a flow sleeve and a casing of the combustor assembly.
    Type: Grant
    Filed: May 2, 2012
    Date of Patent: September 20, 2016
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Kwanwoo Kim, Fei Han, Praveen Jain, Venkat Narra, Sven Georg Bethke
  • Annular strip micro-mixers for turbomachine combustor
    Patent number: 9410704
    Abstract: A turbomachine combustor is provided. The turbomachine includes a combustion chamber and multiple micro-mixer nozzles arranged concentrically within a radial combustion liner and configured to receive fuel from one or more fuel supply pipes affixed to each of the plurality of micro-mixer nozzles at an upstream face. The multiple micro-mixer nozzle are also configured to receive air from a flow sleeve surrounding the radial combustion liner. Each of the micro-mixer nozzles include an annular strip having a multiple tubes or passages extending axially from the upstream face to a downstream face of each of the micro-mixer nozzles.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: August 9, 2016
    Assignee: General Electric Company
    Inventors: Qingguo Zhang, Fei Han
  • Systems and Methods for Measuring Temperature in a Gas Turbine Using Acoustic Interference
    Publication number: 20160223410
    Abstract: Systems and methods for measuring temperature in a gas turbine are disclosed. The method can include directing a first acoustic signal towards a gas path in a turbine; directing a second acoustic signal towards the gas path in the turbine; receiving the first acoustic signal and the second acoustic signal at a downstream gas path location; combining the first acoustic signal and the second acoustic signal to create a combined acoustic signal, where a portion of the first acoustic signal cancels out a portion of the second acoustic signal; and determining a temperature of the gas path based at least in part on the combined acoustic signal.
    Type: Application
    Filed: February 2, 2015
    Publication date: August 4, 2016
    Inventors: Eamon P. Gleeson, Fei Han
  • SEMICONDUCTOR STRUCTURE AND METHOD FOR MANUFACTURING THE SAME
    Publication number: 20160225696
    Abstract: A semiconductor structure and a method for manufacturing the same are provided. The semiconductor structure comprises a substrate, a through silicon via hole, an interlayer dielectric, a liner layer and a conductor. The through silicon via hole is formed in the substrate. The interlayer dielectric is formed on the substrate. The interlayer dielectric defines an opening corresponding to the through silicon via hole. The interlayer dielectric comprises a bird beak portion near the through silicon via hole. The liner layer is formed on a bottom and a sidewall of the through silicon via hole. The conductor is filled in the through silicon via hole and the opening.
    Type: Application
    Filed: March 24, 2015
    Publication date: August 4, 2016
    Inventors: Xiao-Fei Han, Jun Qian, Ju-Bao Zhang
  • Rapid string matching method
    Publication number: 20160224552
    Abstract: A rapid string matching method, in a field of information processing, includes pre-treating a target string to obtain a simple hash table of each character of the target string; when a first character of the target string is matched, readily matching with a last character of the target string. The method effectively improves a performance of matching and avoids repeated matching. The method is applicable to fields requiring rapid string searching, such as text editors, search engines and whole text search systems.
    Type: Application
    Filed: August 12, 2013
    Publication date: August 4, 2016
    Inventors: Fei Han, Song Yang, Zhanpeng Mo, Tongkai Ji