Patents by Inventor Xiao Wu

Xiao Wu 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).

  • Multi-layer search-engine index
    Patent number: 9959347
    Abstract: Subject matter described herein includes a multi-layer search-engine index. Accordingly, the search-engine index is divided into multiple indexes, each of which includes a respective set of information used to serve (i.e., respond to) a query. One index includes a term index, which organizes a set of terms that are found among a collection of documents. Another index includes a document index, which organizes a set of documents that are searchable. A computing device is used to serve the search-engine index (i.e., to analyze the index when identifying documents relevant to a search query). For example, a solid-state device might be used to serve the multi-layer search-engine index.
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: May 1, 2018
    Assignee: Microsoft Technology Licensing, LLC
    Inventors: Hui Shen, Mao Yang, Lintao Zhang, Zhenyu Zhao, Xiao Wu, Ying Yan, Xiaosong Yang, Chad Walters, Choong Soon Chang
  • Profile-based bandwidth scheduler
    Patent number: 9954603
    Abstract: A profile-based scheduler is disclosed. In other embodiments, the profile-based scheduler may profile previously accessed websites and/or FTP sites. In doing so, the profile may compile bandwidth requirements for all such profiled websites and/or FTP sites within a lookup table. When a website and/or FTP site is accessed, the profiler may grant the bandwidth associated with the website or FTP site within the lookup table. In some embodiments, the profiler may create entries not only based on websites and/or FTP sites but may also profile users, TCP connections, web browser configurations and/or web browser types.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: April 24, 2018
    Assignee: ViaSat, Inc.
    Inventors: Xiao Wu, Bill Hallstrom
  • System and method for a switched-mode power supply
    Patent number: 9948187
    Abstract: In accordance with an embodiment, a method of operating a switched-mode power supply includes turning on a semiconductor switch coupled to a primary winding of a transformer for a first time period of a first cycle, turning off the semiconductor switch for a second time period of the first cycle, detecting a change in slew rate of a voltage at an output node of the semiconductor switch, determining a switch turn-on time based on detecting the change in the slew rate, and turning on the semiconductor switch at the determined switch turn-on time for a first time period of a second cycle.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: April 17, 2018
    Assignee: Infineon Technologies Austria AG
    Inventors: Xiao Wu Gong, Yong Siang Teo
  • Extensibility bundles for a cloud and devices suite
    Patent number: 9917922
    Abstract: An interface mechanism is provided for developers to bundle together a set of extensions (or add-ins) to a productivity suite allowing end users and system administrators to manage their lifecycle in a unified way. Aspects such as discovery, acquisition, authorization deployment, management, updates, and similar ones may be addressed for the bundle as opposed to each of the different extensions (for example extensions for different versions of the same application such as desktop version, web application version, mobile version, etc.). Bundles may also provide a means to match specific functional sets or commercial offerings to specific user or customer profiles.
    Type: Grant
    Filed: September 24, 2015
    Date of Patent: March 13, 2018
    Assignee: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Dorrene Brown, Dmitry Pugachev, Humberto Lezama Guadarrama, Shreedhar Thirugnanasambantham, Xiao Wu, Jay Rathi, Mauricio Ordonez, Rolando Jimenez Salgado, Yi Li, Gabriel Hall, Robert Ward
  • Uterine Manipulator
    Publication number: 20170354436
    Abstract: A uterine manipulator device includes: an elongated cannulated tube comprising a proximal end and a distal end; a cervical cup having a top proximal portion of a first diameter and a base distal portion of a second smaller diameter, wherein: the base distal portion includes a hole formed therein having a perimeter including a distal end and a proximal end, and including a longitudinal axis positioned therethrough; one of the proximal end of the perimeter and the distal end of the perimeter is angled away from the longitudinal axis and the other of the proximal end of the perimeter and the distal end of the perimeter is in line with the longitudinal axis; and the elongated cannulated tube is positioned through the hole in the cervical cup.
    Type: Application
    Filed: June 8, 2017
    Publication date: December 14, 2017
    Applicant: Conmed Corporation
    Inventors: Ashley Holbrooks, Rachelle D. Fitzgerald, Christopher Yantsides, David Hughes, Xiao Wu, Irtiza Ali
  • Moving-sum charge pump
    Patent number: 9800143
    Abstract: Various implementations described herein are directed to an integrated circuit. The integrated circuit may include a charge pump stage having multiple charge storage elements arranged to provide multiple sets of voltages in alternating phases. The integrated circuit may include a voltage multiplexing stage having multiple multiplexers arranged to receive the multiple sets of voltages in the alternating phases. Each multiplexer may provide a selected voltage from the multiple sets of voltages based on a conversion ratio. The integrated circuit may include a voltage summing stage having multiple sampling charge storage elements arranged to receive the selected voltages from each multiplexer and provide an output voltage as a sum of the selected voltages received from each multiplexer.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: October 24, 2017
    Assignee: The Regents of the University of Michigan
    Inventors: Xiao Wu, David Theodore Blaauw, Dennis Michael Chen Sylvester
  • System and method for a switched-mode power supply
    Patent number: 9763289
    Abstract: In accordance with an embodiment, a switched-mode power converter includes a switch, a freewheeling diode coupled between an output terminal of the switch and a power supply input node, an inductor coupled between the output terminal of the switch and a power supply output node, and a passive network having a first terminal coupled to the output terminal of the switch, a second terminal coupled to a power supply output node, and a third terminal coupled to a reference terminal of the switch. A method includes measuring a first voltage at a fourth terminal of the passive network when the switch is on; measuring a second voltage at the fourth terminal of the passive network when the switch is off; and estimating an output voltage between the power supply output node and the reference terminal of the switch based on the first voltage and the second voltage.
    Type: Grant
    Filed: March 31, 2015
    Date of Patent: September 12, 2017
    Assignee: Infineon Technologies Austria AG
    Inventors: Michael Herfurth, Xiao Wu Gong, Yong Siang Teo
  • Energy Harvester
    Publication number: 20170257023
    Abstract: Various implementations described herein are directed to a device having a charge pump and a capacitor. The charge pump may be configured for coupling between first and second power sources. The capacitor may be configured for coupling between the first power source and an input of the charge pump. In an energy harvest mode, the charge pump may decouple from the first and second power sources, and the first power source may charge the capacitor with a first voltage while the charge pump is decoupled from the first and second power sources. In an energy transfer mode, the charge pump may couple to the capacitor and the second power source to transfer the first voltage from the capacitor to the second power source during discharge of the first voltage from the capacitor.
    Type: Application
    Filed: March 3, 2016
    Publication date: September 7, 2017
    Inventors: Xiao Wu, David Theodore Blaauw, Dennis Michael Chen Sylvester
  • Moving-Sum Charge Pump
    Publication number: 20170257024
    Abstract: Various implementations described herein are directed to an integrated circuit. The integrated circuit may include a charge pump stage having multiple charge storage elements arranged to provide multiple sets of voltages in alternating phases. The integrated circuit may include a voltage multiplexing stage having multiple multiplexers arranged to receive the multiple sets of voltages in the alternating phases. Each multiplexer may provide a selected voltage from the multiple sets of voltages based on a conversion ratio. The integrated circuit may include a voltage summing stage having multiple sampling charge storage elements arranged to receive the selected voltages from each multiplexer and provide an output voltage as a sum of the selected voltages received from each multiplexer.
    Type: Application
    Filed: September 9, 2016
    Publication date: September 7, 2017
    Inventors: Xiao Wu, David Theodore Blaauw, Dennis Michael Chen Sylvester
  • Fuse Component and Electric Motor Incorporating the Same
    Publication number: 20170237319
    Abstract: A fuse component configured to provide overcurrent protection for an electric motor comprises a spiral fuse portion and a magnetic core. The spiral fuse portion encloses at least a part of the magnetic core, so that the fuse component is also configured to function as a choke of the electric motor.
    Type: Application
    Filed: May 3, 2017
    Publication date: August 17, 2017
    Inventors: Rui Feng QIN, Xin Hui GUAN, Tao QU, Zhong WAN, Yong Bin LI, Xiao Wu XIE, Kwong Fai CHU
  • System and Method for a Cascode Switch
    Publication number: 20170222561
    Abstract: In some embodiments, a power system includes an integrated circuit (IC). The IC includes a first switching transistor having a load path coupled between a sensing terminal of the IC and a first terminal of the IC. The first terminal of the IC is configured to be coupled to a first load path terminal of a second switching transistor. The IC also includes a first diode coupled between the first terminal of the IC and a second terminal of the IC. The second terminal is configured to be coupled to an auxiliary winding of the power system. The IC further includes a first driver circuit having an output coupled to a third terminal of the IC. The third terminal is configured to be coupled to a control node of the second switching transistor.
    Type: Application
    Filed: February 3, 2016
    Publication date: August 3, 2017
    Inventors: Mladen Ivankovic, Gong Xiao Wu, Fred Sawyer
  • VOLTAGE CONVERTER AND VOLTAGE CONVERSION METHOD
    Publication number: 20170063243
    Abstract: Disclosed is a voltage converter and a method. The voltage converter includes: an input, an output, and a transformer including a primary winding and a secondary winding; a primary side circuit comprising at least one switch and coupled between the input and the primary winding; a secondary side control circuit coupled to the output. The primary side circuit is configured to receive a feedback signal from the secondary side control circuit. The secondary side control circuit is configured to generate an error signal based on an output signal of the voltage converter, and to modulate the error signal based on supplemental information to generate the feedback signal.
    Type: Application
    Filed: August 24, 2016
    Publication date: March 2, 2017
    Inventor: Xiao Wu Gong
  • Switched mode power supply
    Patent number: 9564810
    Abstract: A switching power converter includes an inductor coupled to a terminal operably supplied with an input voltage. A semiconductor switch is coupled to the inductor and configured to enable and disable an input current passing through the inductor in accordance with a drive signal. A current sense circuit is coupled to the inductor or the semiconductor switch and is configured to generate a current sense signal representing the input current passing through the inductor or the semiconductor switch. A control circuit receives the current sense signal and is configured to: close the semiconductor switch regularly in accordance with a clock frequency, to integrate the current sense signal thus providing an integrated current sense signal to compare the integrated current sense signal with a threshold that is a function of the input voltage.
    Type: Grant
    Filed: March 28, 2013
    Date of Patent: February 7, 2017
    Assignee: Infineon Technologies Austria AG
    Inventors: Yong Siang Teo, Xiao Wu Gong
  • System and method for a switched-mode power supply
    Patent number: 9543844
    Abstract: In accordance with an embodiment, a method of operating a switched-mode power supply includes synchronously rectifying a current in a secondary side of the switched-mode power supply by detecting a voltage drop of a secondary winding of a transformer and activating a semiconductor switch coupled to the secondary winding when the voltage drop is detected. The method also includes determining a digital signal transmitting the digital signal to a controller coupled to a primary winding of the transformer by switching the semiconductor switch in accordance with the digital signal.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: January 10, 2017
    Assignee: Infineon Technologies Austria AG
    Inventors: Xiao Wu Gong, Kok Kee Lim
  • SUPPORT FOR NON-NATIVE FILE TYPES IN WEB APPLICATION ENVIRONMENT
    Publication number: 20160313882
    Abstract: Applications may be created and registered to an online ecosystem and then execute within individual web applications such as productivity applications, communication applications, collaboration applications, and so on. These non-native applications may be enabled to interact with files and provide custom experiences for a user. The applications may also be enabled to interact with additional information discovered about the user within the ecosystem to provide custom experiences. The applications may further be enabled to create custom workflows to allow users to accomplish new tasks.
    Type: Application
    Filed: September 16, 2015
    Publication date: October 27, 2016
    Inventors: Dorrene Brown, Joey Masterson, Nate Waddoups, Shreedhar Thirugnanasambantham, Xiao Wu, Jay Rathi, Mauricio Ordonez, Darren Miller, Ela Malani, John Wang, Sreekanth Lingannapeta, Gabriel Hall
  • EXTENSIBILITY BUNDLES FOR A CLOUD AND DEVICES SUITE
    Publication number: 20160313990
    Abstract: An interface mechanism is provided for developers to bundle together a set of extensions (or add-ins) to a productivity suite allowing end users and system administrators to manage their lifecycle in a unified way. Aspects such as discovery, acquisition, authorization deployment, management, updates, and similar ones ma be addressed for the bundle as opposed to each of the different extensions (for example extensions for different versions of the same application such as desktop version, web application version, mobile version, etc.). Bundles may also provide a means to match specific functional sets or commercial offerings to specific user or customer profiles.
    Type: Application
    Filed: September 24, 2015
    Publication date: October 27, 2016
    Applicant: MICROSOFT TECHNOLOGY LICENSING, LLC
    Inventors: Dorrene Brown, Dmitry Pugachev, Humberto Lezama Guadarrama, Shreedhar Thirugnanasambantham, Xiao Wu, Jay Rathi, Mauricio Ordonez, Rolando Jimenez Salgado, Yi Li, Gabriel Hall, Robert Ward
  • System and method for a switched-mode power supply
    Patent number: 9479067
    Abstract: In accordance with an embodiment, a method of operating a switched-mode power supply includes detecting a voltage decrease in a secondary winding of a transformer by detecting a first voltage transient using a sensor capacitively coupled to the secondary winding of the transformer. A secondary switch coupled to the secondary winding of the transformer is turned on based on when the first voltage transient is detected.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: October 25, 2016
    Assignee: Infineon Technologies Austria AG
    Inventors: Xiao Wu Gong, Yong Siang Teo
  • Low-pressure chemical vapor deposition apparatus and thin-film deposition method thereof
    Patent number: 9478440
    Abstract: A low-pressure chemical vapor deposition (LPCVD) apparatus and a thin-film deposition method thereof. The apparatus comprises a reaction furnace, having reaction gas input pipelines respectively arranged at a furnace opening part and a furnace tail part. During thin film deposition, each reaction gas is synchronously introduced into the reaction furnace through the input pipeline at the furnace opening part and the input pipeline at the furnace tail part.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: October 25, 2016
    Assignee: University of Utah Research Foundation
    Inventors: Xunhui Wang, Xiao Wu, Qijun Guo, Jianchao Fan
  • System and Method for a Switched-Mode Power Supply
    Publication number: 20160291682
    Abstract: In accordance with an embodiment, a switched-mode power converter includes a switch, a freewheeling diode coupled between an output terminal of the switch and a power supply input node, an inductor coupled between the output terminal of the switch and a power supply output node, and a passive network having a first terminal coupled to the output terminal of the switch, a second terminal coupled to a power supply output node, and a third terminal coupled to a reference terminal of the switch. A method includes measuring a first voltage at a fourth terminal of the passive network when the switch is on; measuring a second voltage at the fourth terminal of the passive network when the switch is off; and estimating an output voltage between the power supply output node and the reference terminal of the switch based on the first voltage and the second voltage.
    Type: Application
    Filed: March 31, 2015
    Publication date: October 6, 2016
    Inventors: Michael Herfurth, Xiao Wu Gong, Yong Siang Teo
  • System and Method for a Switched-Mode Power Supply
    Publication number: 20160294282
    Abstract: In accordance with an embodiment, a method of operating a switched-mode power converter includes measuring an input voltage of the switched-mode power converter; determining an on-time of a switch of the switched-mode power converter; determining an off-time of the switch of the switched-mode power converter; and determining an output voltage of the switched-mode power converter based on the measured input voltage, the determined on-time and the determined off-time. The output voltage includes a voltage at a first node having a DC path to a load path of the switch.
    Type: Application
    Filed: March 30, 2015
    Publication date: October 6, 2016
    Inventors: Michael Herfurth, Xiao Wu Gong