Patents by Inventor Feng Qiu

Feng Qiu 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: 10371206
    Abstract: The present invention resides in a sensorized roller of a roller bearing. The sensorized roller includes a roller bore that accommodates a measuring device for measuring deformation of the roller bore and electronics for processing a deformation signal from the measuring device and wirelessly transmitting the processed deformation signal to an external receiver. According to the invention, the measuring device and electronics are mounted in a rigid housing that is shaped to fit within the roller bore. A radially outer surface of the housing includes at least one aperture associated with the measuring device. Furthermore, the rigid housing is resiliently mounted to the roller bore via first and second sealing elements that enclose a radial gap between a radially inner surface of the roller bore and a radially outer surface of the housing.
    Type: Grant
    Filed: June 21, 2017
    Date of Patent: August 6, 2019
    Assignee: Aktiebolaget SKF
    Inventors: Andreas Clemens van der Ham, Nicolaas Simon Willem Den Haak, Gerrit-Jan Dop, Feng Qiu, Jeroen van Diermen
  • Patent number: 10282561
    Abstract: The present disclosure provides a method and an apparatus for managing an application. Whether an application is allowed to run in the background of a terminal device is determined based on a configuration file. When an application is allowed to run in the background, whether each of specific activities of the application is allowed be performed in the background is further determined based on the configuration file. The configuration file may be generated from a record information file used by the terminal device to keep track of the running data for applications. In particularly, whether an application or an activity of an application is allowed to run in the background of the terminal device may be determined by analyzing the record information file and tracked in the configuration file.
    Type: Grant
    Filed: December 21, 2016
    Date of Patent: May 7, 2019
    Assignee: XIAOMI INC.
    Inventors: Zifeng Qiu, Xiaoxian Liu, Feng Qiu
  • Publication number: 20190096119
    Abstract: A method of rendering one or more material properties of a surface of an object includes acquiring a medical data set as a three-dimensional representation of a three-dimensional object. A surface structure corresponding to the surface of the three-dimensional object is determined based on the medical dataset. A plurality of rendering locations are derived based on the determined surface structure. The method includes rendering, by a physically-based volumetric renderer and from the medical dataset, one or more material properties of the surface of the object at each of the plurality of rendering locations. The one or more rendered material properties are stored per rendering location. Also disclosed is apparatus for performing the method.
    Type: Application
    Filed: August 21, 2018
    Publication date: March 28, 2019
    Inventors: Kaloian Petkov, Philipp Treffer, Daphne Yu, Babu Swamydoss, Feng Qiu
  • Publication number: 20180308278
    Abstract: Systems and methods are provided rendering a three-dimensional volume. Scan data representing an anatomical object of a patient is acquired. A boundary of the object is identified in the scan data. A first lightmap is positioned inside the boundary of the object. A second lightmap is positioned outside the boundary of the object. The three-dimensional volume of the object is rendered from the scan data with lighting based on the first lightmap and second lightmap.
    Type: Application
    Filed: April 20, 2017
    Publication date: October 25, 2018
    Inventors: Feng Qiu, Wei Hong, Daphne Yu
  • Publication number: 20180251604
    Abstract: The present invention relates to a high-temperature resistant modified silicon-containing cyanate ester resin as well as a preparation method and an application thereof. The preparation method comprises the following steps: adding a mixed solution of hydroxyl silicone oil, a silane coupling agent and an organic solvent into a mixed solution of a tetramethylammonium hydroxide aqueous solution and a polar solvent, performing hydrolytic polycondensation at a temperature of 5-40° C. for 4-8 h, and performing distillation to obtain an epoxy-containing silsesquioxane; performing pre-polymerization on the epoxy-containing silsesquioxane and a cyanate ester resin at a temperature of 50-100° C. for 1-8 h to obtain a modified cyanate ester resin; and uniformly mixing the modified cyanate ester resin and a modified anhydride, thereby obtaining the high-temperature resistant modified silicon-containing cyanate ester resin.
    Type: Application
    Filed: May 6, 2018
    Publication date: September 6, 2018
    Inventors: BIN WU, CHUNQI ZHANG, JIANFENG GU, FENGXI JING, FENG QIU, ZHIFENG XIA, JUNFENG MA
  • Publication number: 20180211422
    Abstract: A computer-implemented method of reducing 4D Digital Subtracted Angiography (DSA) reconstruction artifacts using a computational fluid dynamics (CFD) simulation includes a computer receiving first DSA time sequence data comprising a representation of a plurality of vessels and segmenting a vessel of interest from the first DSA time sequence data. The computer uses the CFD simulation to simulate fluid dynamics across the vessel of interest to yield a flow field and determines a plurality of simulated time activity curve parameters for each voxel inside the vessel of interest using the flow field. Then, the computer applies a reconstruction process to second DSA time sequence data to yield a DSA volume. This reconstruction process is constrained by the plurality of simulated time activity curve parameters for each voxel inside the vessel of interest.
    Type: Application
    Filed: September 2, 2015
    Publication date: July 26, 2018
    Inventors: Feng Qiu, Daphne Yu, Wei Hong, Puneet Sharma
  • Publication number: 20180062546
    Abstract: A motor driving circuit, an application device, and a motor braking method are provided. The driving circuit includes an inverter, a braking unit, and a MCU. The inverter is configured to drive a motor. The braking unit includes a sampling circuit, a discharge circuit, and a switch group. The MCU is connected to the sampling circuit, the discharge circuit, and the switch group, and is configured to control the sampling circuit to detect a voltage across the inverter and obtain a detected value when receiving the emergency signal, compare the detected value to a preset voltage or a preset voltage range, and transmit a control signal to activate the discharge circuit when the detected value is greater than the preset voltage or exceeds the preset voltage range.
    Type: Application
    Filed: August 31, 2017
    Publication date: March 1, 2018
    Inventors: You Qing XIANG, Shi Wen WANG, Wu Feng QIU, Ying Chao LI, Yun CHEN, Lian Zhong ZHANG, Jun ZHANG
  • Patent number: 9875569
    Abstract: In rendering in medical imaging, the MIP and VRT modes are emulated using physically-based rendering, such as Monte Carlo ray tracing. By weighting the rendering based on user or other input, where along a continuum of MIP to VRT to render is selected. A sequence of different images may be rendered with different settings at different points on the continuum using the same window level, classification, or other parameters.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: January 23, 2018
    Assignee: Siemens Healthcare GmbH
    Inventors: Daphne Yu, Feng Qiu, Lining Yang
  • Publication number: 20180003492
    Abstract: The present invention resides in a sensorized roller of a roller bearing. The sensorized roller includes a roller bore that accommodates a measuring device for measuring deformation of the roller bore and electronics for processing a deformation signal from the measuring device and wirelessly transmitting the processed deformation signal to an external receiver. According to the invention, the measuring device and electronics are mounted in a rigid housing that is shaped to fit within the roller bore. A radially outer surface of the housing includes at least one aperture associated with the measuring device. Furthermore, the rigid housing is resiliently mounted to the roller bore via first and second sealing elements that enclose a radial gap between a radially inner surface of the roller bore and a radially outer surface of the housing.
    Type: Application
    Filed: June 21, 2017
    Publication date: January 4, 2018
    Inventors: Andreas Clemens van der Ham, Nicolaas Simon Willem Den Haak, Gerrit-Jan Dop, Feng Qiu, Jeroen van Diermen
  • Patent number: 9846926
    Abstract: Apparatuses and methods for rendering and compositing two-dimensional images for remote visualization using a multi-pass rendering technique are provided. A server computer renders a three-dimensional volume separately from one or more three-dimensional graphical objects to be embedded in the rendered image of the volume. The server compresses and transmits the separately rendered images to a client computer. The client computer decompresses the rendered images and generates a composite image using the rendered images. If a user manipulates, adds or deletes an embedded object, the client computer generates a new composite image using the previously rendered volume image. In the case of a new or manipulated embedded graphical object, the server only renders the manipulated or new object.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: December 19, 2017
    Assignee: Siemens Healthcare GmbH
    Inventors: Wei Hong, John Paulus, Feng Qiu, Daphne Yu
  • Publication number: 20170352180
    Abstract: A computer-implemented method for performing window-leveling of volumetric ray tracing includes a computer system retrieving a quad-tree data structure organizing a plurality of light paths associated with a volume rendered using a transfer function and one or more window level values. The computer system also receives a user selection of at least one of a new transfer function or new window level values. The volume is rendered by the computer system with the new transfer function or the new window level values using the quad-tree data structure. Then, the computer system synthesizes an image by adding contributions from all of the plurality of light paths according to the quad-tree data structure.
    Type: Application
    Filed: June 3, 2016
    Publication date: December 7, 2017
    Inventors: Feng Qiu, Daphne Yu
  • Publication number: 20170236324
    Abstract: In rendering in medical imaging, the MIP and VRT modes are emulated using physically-based rendering, such as Monte Carlo ray tracing. By weighting the rendering based on user or other input, where along a continuum of MIP to VRT to render is selected. A sequence of different images may be rendered with different settings at different points on the continuum using the same window level, classification, or other parameters.
    Type: Application
    Filed: March 8, 2016
    Publication date: August 17, 2017
    Inventors: Daphne Yu, Feng Qiu, Lining Yang
  • Patent number: 9698787
    Abstract: An integrated circuit includes a low voltage differential signaling (LVDS) output circuit, a high-speed current steering logic (HCSL) output circuit, a bias control circuit, a programmable voltage reference circuit coupled to the bias control circuit, an output stage circuit coupled to the HCSL output circuit, a first plurality of switches to switchably couple the bias control circuit to the LVDS output circuit, a second plurality of switches to switchably couple the bias control circuit to the output stage circuit and to the HCSL output circuit and a logic control circuit coupled to the programmable voltage reference circuit, the first plurality of switches and the second plurality of switches. The logic control circuit is configured to activate either the LVDS output circuit or the HCSL output circuit.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: July 4, 2017
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Vikas Agrawal, Feng Qiu, John C. Hsu
  • Publication number: 20170185788
    Abstract: The present disclosure provides a method and an apparatus for managing an application. Whether an application is allowed to run in the background of a terminal device is determined based on a configuration file. When an application is allowed to run in the background, whether each of specific activities of the application is allowed be performed in the background is further determined based on the configuration file. The configuration file may be generated from a record information file used by the terminal deice to keep track of the running data for applications. In particularly, whether an application or an activity of an application is allowed to run in the background of the terminal device may be determined by analyzing the record information file and tracked in the configuration file.
    Type: Application
    Filed: December 21, 2016
    Publication date: June 29, 2017
    Applicant: Xiaomi Inc.
    Inventors: Zifeng Qiu, Xiaoxian Liu, Feng Qiu
  • Patent number: 9692394
    Abstract: An integrated circuit comprising, a voltage regulator circuit and a programmable low power high-speed current steering logic (LPHCSL) driver circuit coupled to a common supply voltage. The voltage regulator circuit includes a native source follower transistor having a negative threshold voltage to provide more headroom for the voltage regulator to operate. The LPHCSL driver circuit includes a plurality of selectable output driver legs and a plurality of programmable resistors. The ability to use a common supply voltage and the ability to select multiple output impedance drivers reduces the die area without increasing the complexity of the integrated circuit.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: June 27, 2017
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC.
    Inventors: Vikas Agrawal, Feng Qiu
  • Patent number: 9678868
    Abstract: A method for a device to optimize memory includes: when a newly created process needs to be added into a control group, detecting whether a total resource value of memory resources occupied by all processes in the control group at a current moment reaches a critical resource value; if it is detected that the total resource value of memory resources occupied by all processes in the control group at the current moment reaches the critical resource value, cancelling restriction of the predetermined resource threshold on the control group and adding the newly created process into the control group that is not restricted by the predetermined resource threshold; and performing a swap-out operation on memory resources occupied by an idle process in the control group, so that the total resource value of memory resources occupied by all processes in the control group is less than the predetermined resource threshold.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: June 13, 2017
    Assignee: Xiaomi Inc.
    Inventors: Feng Qiu, Jianchun Zhang, Qiwu Huang
  • Patent number: 9600891
    Abstract: A method for visualizing flow data from computation fluid dynamics (CFD) applications in 2-dimensions (2D) includes receiving a 3-dimensional (3D) image volume from a CFD simulation of fluids flowing through vessels in a patient that is a snapshot of a fluid flow in the vessels at a certain time, subdividing the 3D image volume into 3D data blocks, minimizing a sum over a matrix of energy interactions defined for each pair of data blocks in the 3D image volume, where the minimization preserves a local shape of the vessels, where minimizing the sum over the matrix of energy interactions is performed on a graphics processing unit (GPU), and using the minimized energy interaction matrix to display on a monitor a 2D sketch of the 3D image volume, where the 2D sketch is displayed in real-time with respect to the time scale of the CFD simulation.
    Type: Grant
    Filed: October 7, 2014
    Date of Patent: March 21, 2017
    Assignee: Siemens Healthcare GmbH
    Inventors: Xiaoke Huang, Jun Tao, Feng Qiu, Daphne Yu
  • Publication number: 20160364902
    Abstract: Apparatuses and methods for rendering and compositing two-dimensional images for remote visualization using a multi-pass rendering technique are provided. A server computer renders a three-dimensional volume separately from one or more three-dimensional graphical objects to be embedded in the rendered image of the volume. The server compresses and transmits the separately rendered images to a client computer. The client computer decompresses the rendered images and generates a composite image using the rendered images. If a user manipulates, adds or deletes an embedded object, the client computer generates a new composite image using the previously rendered volume image. In the case of a new or manipulated embedded graphical object, the server only renders the manipulated or new object.
    Type: Application
    Filed: June 9, 2015
    Publication date: December 15, 2016
    Inventors: Wei Hong, John Paulus, JR., Feng Qiu, Daphne Yu
  • Patent number: 9506817
    Abstract: Temperature accuracy is improved, conversion gain is increased without increasing current density and parasitic resistance errors and other problems with conventional bandgap reference temperature sensors are eliminated by generating a signal proportional to temperature from four samples, where the signal is defined as a difference between a first difference and a second difference, the first difference comprising a difference between the second sample and the first sample, the second difference comprising a difference between the fourth sample and the third sample, and where the signal is defined to cancel parasitic components in the first, second, third and fourth samples.
    Type: Grant
    Filed: May 12, 2012
    Date of Patent: November 29, 2016
    Assignee: INTEGRATED DEVICE TECHNOLOGY, INC
    Inventor: Feng Qiu
  • Publication number: 20160313579
    Abstract: The present invention provides an electro-optic element including an optical waveguide that is constituted of a core layer made of an inorganic compound and a first clad layer and a second clad layer which are laminated so as to sandwich the core layer therebetween and are made of a dielectric material, and a first electrode layer and a second electrode layer that are formed so as to sandwich the core layer therebetween, the first clad layer, and the second clad layer, in which at least one of the first clad layer and the second clad layer contains an organic dielectric material having an electro-optic effect, and refractive indices of the first clad layer and the second clad layer are lower than a refractive index of the core layer.
    Type: Application
    Filed: December 11, 2014
    Publication date: October 27, 2016
    Inventors: Shiyoshi YOKOYAMA, Feng QIU, Junichiro ICHIKAWA, Satoshi OIKAWA, Youichi HOSOKAWA, Daisuke MAEDA