Patents by Inventor Xiaohan Wang

Xiaohan Wang 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: 10330129
    Abstract: Disclosed is a hydraulic control valve assembly of automatic steering system for agricultural machine including a proportional directional valve (3). A balancing valve (1) is arranged between the proportional directional valve (3) and the steering cylinder. A first shuttle valve (2) is arranged between the proportional directional valve (3) and the balancing valve (1). The first shuttle valve (2) is positioned on one side of the proportional directional valve (3). An overflow valve (4) is positioned on another side of the proportional directional valve (3). The overflow valve (4) is connected to a second shuttle valve (6) and a logic valve (5) respectively. The hydraulic control valve assembly has a large control power, a rapid response, and is more suitable for the autonomous navigation operation of agricultural machine. Moreover, the system saves more energy, such that the autonomous navigation operation of agricultural machine is more stable.
    Type: Grant
    Filed: July 4, 2016
    Date of Patent: June 25, 2019
    Assignee: SHANGHAI HUACE NAVIGATION TECHNOLOGY LTD
    Inventors: Guangjie Cao, Yanping Zhao, Wending Dai, Anbang Wang, Xiaohan Gao, Xunye Mao, Kai Chen
  • Publication number: 20190190685
    Abstract: Provided are a base station, user equipment and wireless communication method related to RS collision cancellation in full duplex communication.
    Type: Application
    Filed: August 11, 2016
    Publication date: June 20, 2019
    Inventors: XIAOHAN XIA, LILEI WANG, MASAYUKI HOSHINO, HIDETOSHI SUZUKI
  • Patent number: 10192780
    Abstract: Methods of self-aligned double patterning and improved interconnect structures formed by self-aligned double patterning. A mandrel line including an upper layer and a lower layer is formed over a hardmask. A non-mandrel cut block is formed over a portion of a non-mandrel line, after which the upper layer of the mandrel line is removed. An etch mask is formed over a first section of the lower layer of the mandrel line defining a mandrel cut block over a first portion of the hardmask. The first section of the lower layer is arranged between adjacent second sections of the lower layer. The second sections of the lower layer of the mandrel line are removed to expose respective second portions of the hardmask, and the second portions of the hardmask are removed to form a trench. The mandrel cut block masks the first portion of the hardmask during the etching process.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: January 29, 2019
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Xiaohan Wang, Jiehui Shu, Brendan O'Brien, Terry A. Spooner, Jinping Liu, Ravi Prakash Srivastava
  • Patent number: 9554174
    Abstract: A technique for post-processing media content on a network by a GPU cloud computing system is provided. The system includes a plurality of computer systems providing a content submission connection for uploading the media content. The system includes a processor configured to receive descriptive information related to the media content via the network, receive the media content via the content submission connection which has a quicker uploading bandwidth than the network, process the media content; and distribute processed media content via the network that is separated from the content submission connection. The system further includes a distributed GPU cloud computing platform to perform parallel post-processing of the media content, and an immersive 3D interface.
    Type: Grant
    Filed: October 11, 2015
    Date of Patent: January 24, 2017
    Inventors: Janos Redei, Xiaohan Wang
  • Publication number: 20160073150
    Abstract: A technique for post-processing media content on a network by a GPU cloud computing system is provided. The system includes a plurality of computer systems providing a content submission connection for uploading the media content. The system includes a processor configured to receive descriptive information related to the media content via the network, receive the media content via the content submission connection which has a quicker uploading bandwidth than the network, process the media content; and distribute processed media content via the network that is separated from the content submission connection. The system further includes a distributed GPU cloud computing platform to perform parallel post-processing of the media content, and an immersive 3D interface.
    Type: Application
    Filed: October 11, 2015
    Publication date: March 10, 2016
    Inventors: Janos Redei, Xiaohan Wang
  • Patent number: 9191625
    Abstract: A technique for distributing high-quality, user-generated high definition (HD) video content on the web is presented. A system according to the technique may include a service provider including a user database, a catalog database, and a media library. The service provider may receive the HD video content from a user through a content submission method. A method according to the technique receives registration information for the HD video content to be shared and receives the HD video content from a user through a content submission method. The HD video content may then be further processed, such as transcoding to a streamable format using a massively parallel cloud computing platform.
    Type: Grant
    Filed: September 26, 2009
    Date of Patent: November 17, 2015
    Inventors: Janos Redei, Xiaohan Wang
  • Publication number: 20150027656
    Abstract: A method for preparing low-cost clean steel includes steps of: preliminarily desulfurizing iron melt: preliminarily desulfurizing in an iron melt channel during blast furnace tapping and during iron folding in an iron folding room, adding a desulfurizing ball into the iron melt during the blast furnace tapping or the iron folding; dephosphorizing and controlling sulfur: dephosphorizing and controlling sulfur during converter steelmaking, in such a manner that P?0.014% and S?0.004% during tapping; rapidly dephosphorizing by slag-forming: rapidly dephosphorizing by slag-forming during converter tapping, at a converter end point, controlling a C content at 0.02˜0.10%, adding a dephosphorizing ball through an alloy chute during the converter tapping, blowing argon and stirring at the same time; purifying steel melt during RH refining: adding a purifying ball at a late stage of the RH refining when a vacuum degree is at 66.7˜500 Pa; and continuously casting with whole-process protection.
    Type: Application
    Filed: March 13, 2012
    Publication date: January 29, 2015
    Inventors: Fuping Tang, Zhen Li, Xiaofeng Wang, Peng Fei, Jinsong Meng, Yue Zhang, Yong Ma, Wenzhong Wang, Zhiwen Zhang, Xiaohan Wang, Meng Guo, Zhigang Zhao, Yang Lin, Guoqiang Xin, Weizhi Yao
  • Patent number: 7999949
    Abstract: The present invention discloses an optical measurement and/or inspection device that, in one application, may be used for inspection of semiconductor devices. A method is disclosed for extracting information of a device-under-test for an ellipsometer, comprising the steps: providing a plurality of incoming polarized beams using a plurality of polarizers, where each of the beams being polarized at a designated polarizing angle; using a parabolic reflector to focus said plurality of incoming polarized beams on a spot on a DUT; using a parabolic reflector to collect a plurality of beams reflected from said DUT; and analyzing said collected beams using a plurality of analyzers, wherein each of the analyzers having a designated polarizing angle with respect to its respective polarizer.
    Type: Grant
    Filed: April 24, 2007
    Date of Patent: August 16, 2011
    Assignee: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Tongxin Lu, Xiaohan Wang
  • Publication number: 20100118308
    Abstract: The present invention is an optical system, comprising: a light source for providing light rays; a combined two or more parabolic reflectors or elliptical reflectors having inner reflecting surfaces, wherein the reflectors sharing a common focal point, and a device-under-test is disposed thereabout the focal point; wherein the collimated light rays coming into the parabolic reflector parallel to the axis of symmetry of each parabolic reflector would be directed to the focal point on the surface of the device-under-test. The reflected light rays from the device-under-test are directed by the other parabolic reflectors along the axes of symmetry of each parabolic reflector and generate information indicative of the device-under-test; wherein the reflected light rays exit the reflector; and a detector for receiving the exited light rays.
    Type: Application
    Filed: May 5, 2009
    Publication date: May 13, 2010
    Applicant: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Tongxin Lu, Xiaohan Wang
  • Publication number: 20100083303
    Abstract: A technique for distributing high-quality, user-generated high definition (HD) video content on the web is presented. A system according to the technique may include a service provider including a user database, a catalog database, and a media library. The service provider may receive the HD video content from a user through a content submission method. A method according to the technique receives registration information for the HD video content to be shared and receives the HD video content from a user through a content submission method. The HD video content may then be further processed, such as transcoding to a streamable format using a massively parallel cloud computing platform.
    Type: Application
    Filed: September 26, 2009
    Publication date: April 1, 2010
    Inventors: Janos Redei, Xiaohan Wang
  • Publication number: 20080024790
    Abstract: An optical inspection device of a device-under-test is disclosed, said device comprising a light source, an image rotator, a parabolic reflector, and one or more detectors, wherein said light source provides a light beam traveling through said image rotator and reflecting off said parabolic reflector to a device-under-test and thereby creating diffracted light beams off said device-under-test, and said diffracted light beams reflecting off said parabolic reflector and travels through said image rotator and are received by the detectors.
    Type: Application
    Filed: July 31, 2007
    Publication date: January 31, 2008
    Applicant: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Tongxin Lu, Xiaohan Wang
  • Publication number: 20070263220
    Abstract: The present invention discloses an optical measurement and/or inspection device that, in one application, may be used for inspection of semiconductor devices. It comprises a light source for providing light rays; a half-parabolic-shaped reflector having an inner reflecting surface, where the reflector having a focal point and an axis of summary, and a device-under-test is disposed thereabout the focal point. The light rays coming into the reflector that is in-parallel with the axis of summary would be directed to the focal point and reflect off said device-under-test and generate information indicative of said device-under-test, and then the reflected light rays exit said reflector. A detector array receives the exited light rays and the light rays can be analyzed to determine the characteristics of the device-under-test.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 15, 2007
    Applicant: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Tongxin Lu, Xiaohan Wang
  • Publication number: 20070247624
    Abstract: The present invention discloses an optical measurement and/or inspection device that, in one application, may be used for inspection of semiconductor devices. A method is disclosed for extracting information of a device-under-test for an ellipsometer, comprising the steps: providing a plurality of incoming polarized beams using a plurality of polarizers, where each of the beams being polarized at a designated polarizing angle; using a parabolic reflector to focus said plurality of incoming polarized beams on a spot on a DUT; using a parabolic reflector to collect a plurality of beams reflected from said DUT; and analyzing said collected beams using a plurality of analyzers, wherein each of the analyzers having a designated polarizing angle with respect to its respective polarizer.
    Type: Application
    Filed: April 24, 2007
    Publication date: October 25, 2007
    Applicant: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Tongxin Lu, Xiaohan Wang
  • Publication number: 20070242267
    Abstract: The present invention discloses an optical measurement and/or inspection device that, in one application, may be used for inspection of semiconductor devices. It comprises a light source for providing light rays; a half-parabolic-shaped reflector having an inner reflecting surface, where the reflector having a focal point and an axis of summary, and a device-under-test is disposed thereabout the focal point. The light rays coming into the reflector that is in-parallel with the axis of summary would be directed to the focal point and reflect off said device-under-test and generate information indicative of said device-under-test, and then the reflected light rays exit said reflector. A detector receives the exited light rays and the light rays can be analyzed to determine the characteristics of the device-under-test.
    Type: Application
    Filed: April 16, 2007
    Publication date: October 18, 2007
    Applicant: Raintree Scientific Instruments (Shanghai) Corporation
    Inventors: Tongxin Lu, Xiaohan Wang
  • Patent number: 5739539
    Abstract: A method of performing image reconstruction in a gamma camera system comprises the steps of performing a transmission scan of an object about a number of rotation angles to collect transmission projection data and performing an emission scan of the object about numerous rotation angles to collect emission projection data. The outer boundary of the object is then located based on the transmission projection data. Information identifying the boundary is then either stored in a separate body contour map or embedded in an attenuation map. The information identifying the boundary can be in the form of flags indicating whether individual pixels are inside or outside the boundary of the object. The emission projection data is then reconstructed, using the attenuation map if desired, to generate transverse slice images.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: April 14, 1998
    Assignee: ADAC Laboratories
    Inventors: Xiaohan Wang, J. Keenan Brown, Steven M. Jones, John R. Liebig
  • Patent number: 5672877
    Abstract: A method of coregistering medical image data of different modalities is provided. In the method, an emission scan of an object is performed using a nuclear medicine imaging system to acquire single-photon emission computed tomography (SPECT) image data. A transmission scan of the object is performed simultaneously with the emission scan using the same nuclear medicine imaging system in order to acquire nuclear medicine transmission image data. The emission scan is performed using a roving zoom window, while the transmission scan is performed using the full field of view of the detectors. By knowing the position of the zoom windows for each detection angle, the nuclear medicine transmission image data can be coregistered with the SPECT emission image data as a result of the simultaneous scans.
    Type: Grant
    Filed: March 27, 1996
    Date of Patent: September 30, 1997
    Assignee: ADAC Laboratories
    Inventors: John R. Liebig, Steven M. Jones, Xiaohan Wang
  • Patent number: 5629971
    Abstract: A scan speed procedure and method wherein a minimum radiation exposure period is determined on an object by object basis for a transmission study. Two transmission scans are performed including a prescan followed by a second transmission scan phase. The first transmission prescan is performed using a radiation source over the object. This prescan is of a rapid and predetermined duration (Tp). A resultant count density associated with the object is then generated and examined. The portion having the smallest count density (Cm) is determined and a value (Co) representing the minimum required number of counts for transmission study is given. From the above, a transmission period (Ts) is determined by the system and the second transmission scan phase is performed for the duration Ts using a multi-pass scan phase.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: May 13, 1997
    Assignee: ADAC Laboratories
    Inventors: Steven M. Jones, Michael J. Janicki, Thomas F. Lang, John R. Liebig, Xiaohan Wang
  • Patent number: 5598003
    Abstract: A method and apparatus for collecting transmission information utilizing a large field of view of a detector and for collecting emission data using a small field of view window of the same detector. The system employs the large field of view of a scintillation detector in order to collect transmission data for the entire body being scanned. Such a technique improves the quantitative capability of emission data by acquiring non-truncated attenuation factors. The emission data of a small field of view window is collected so that high resolution image pixels are used for processing the emission data (e.g., of a particular body organ). Since a large field of view is used for collecting the transmission data, the imaging pixels for transmission data are of lower resolution than the emission data. The emission data can be collected using a roving zoom technique during an ECT scan.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: January 28, 1997
    Assignee: ADAC Laboratories
    Inventors: Steven M. Jones, Michael J. Janicki, Thomas F. Lang, J. Keenan Brown, John R. Liebig, Xiaohan Wang
  • Patent number: 5596197
    Abstract: A mechanism and method for performing transmission and emission scanning sessions with two line sources and two detectors wherein two sliding transmission detection windows are employed to differentiate between transmission and emission photons. Transmission and emission data can be collected simultaneously. This system provides that the dual transmission detection windows are each associated with a particular line source and move in synchronization with the associated line source. Further, the two line sources and the two detector windows all move in synchronization in the direction of the long axis of the object being scanned and at any given position all are within a given spatial plane that is transverse to the long axis of the object. In this configuration, the system can effectively reduce the amount of cross-talk detected by a detector (e.g., cross-talk being scattered photon radiation detected by a given detector but not originating from the detector's associated line source).
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: January 21, 1997
    Assignee: ADAC Laboratories
    Inventors: Steven M. Jones, Thomas F. Lang, John R. Liebig, Xiaohan Wang
  • Patent number: 5552606
    Abstract: A variable filter arrangement wherein differently sized and shaped filters are automatically selected and installed from a collection of filters housed within a configuration for use with a radiation source. The line source is typically used for transmission scanning to collect attenuation correction factors. A line source is utilized in the preferred embodiment and a series of filters (e.g., differently sized "bow-tie" filters) are rotatably attached to a central junction so that a particular filter can be rotated into an installed position. When installed, the filter acts to attenuate the radiation emitted from the line source to reduce radiation emitted on an otherwise unobstructed area of a scintillation detector. Differently sized filters are advantageously used to accommodate differently sized patents and also to accommodate different unobstructed parts of a detector for different angles of rotation during an ECT transmission scan.
    Type: Grant
    Filed: May 11, 1995
    Date of Patent: September 3, 1996
    Assignee: ADAC Laboratories, Inc.
    Inventors: Steven M. Jones, Michael J. Janicki, Thomas E. Lang, John R. Liebig, Xiaohan Wang