Patents by Inventor Nan Xiao

Nan Xiao 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).

  • Publication number: 20210105412
    Abstract: Methods, systems, and devices for image processing are described. A device may emit light from a light source and capture one or more images using an image sensor based on the emitted light. The device may emit light based on identifying a low lighting condition. The image sensor may include a set of non-phase detection pixels, a set of phase detection pixels, and a pixelated filter layer deposited over the set of non-phase detection pixels. The device may perform an autofocus operation based on an image offset associated with at least two phase detection pixels and the one or more images. Subsequently, the device may generate the one or more images based on the autofocus operation.
    Type: Application
    Filed: October 2, 2019
    Publication date: April 8, 2021
    Inventors: Nan Cui, Wenbin Wang, Zuguang Xiao
  • Publication number: 20210099841
    Abstract: Systems and methods of providing a location that include receiving location data from user equipment, such as a cellphone or mobile device, and providing the location data in an acceptable form to emergency services, such as a Public Safety Answering Point (PSAP). The location data from the user equipment can undergo a shape conversion process prior to being transmitted to emergency services. The systems and methods evaluate the received location data to determine if a semimajor and a semiminor axis of the received location data are equal in magnitude. If so, the shape conversion process is bypassed to prevent error from being introduced into the location data.
    Type: Application
    Filed: December 4, 2020
    Publication date: April 1, 2021
    Inventors: Wei-Ming LAN, Nan XIAO
  • Patent number: 10945606
    Abstract: Systems and methods are disclosed for determining blood flow characteristics of a patient. One method includes: receiving, in an electronic storage medium, patient-specific image data of at least a portion of vasculature of the patient having geometric features at one or more points; generating a patient-specific reduced order model from the received image data, the patient-specific reduced order model comprising estimates of impedance values and a simplification of the geometric features at the one or more points of the vasculature of the patient; creating a feature vector comprising the estimates of impedance values and geometric features for each of the one or more points of the patient-specific reduced order model; and determining blood flow characteristics at the one or more points of the patient-specific reduced order model using a machine learning algorithm trained to predict blood flow characteristics based on the created feature vectors at the one or more points.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: March 16, 2021
    Assignee: HeartFlow, Inc.
    Inventors: Travis Michael Sanders, Sethuraman Sankaran, Leo Grady, David Spain, Nan Xiao, Jin Kim, Charles A. Taylor
  • Publication number: 20210063340
    Abstract: A chip, a method of operating a chip, and a detection device are provided. The chip includes a detection cavity and a working electrode, the detection cavity is configured to be capable of containing a plurality of droplets, and the working electrode is arranged in the detection cavity and is configured to regularly arrange the plurality of droplets in the detection cavity along an extending direction of the working electrode.
    Type: Application
    Filed: January 2, 2019
    Publication date: March 4, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenliang YAO, Haochen CUI, Peizhi CAI, Fengchun PANG, Yue GENG, Le GU, Nan ZHAO, Yuelei XIAO, Hui LIAO, Yingying ZHAO, Chuncheng CHE
  • Publication number: 20210060555
    Abstract: A microfluidic device, a microfluidic detection assembly and a detection method for the microfluidic device. The microfluidic device includes a first substrate and a second substrate; the first substrate and the second substrate are oppositely arranged to define a channel between the first substrate and the second substrate, the channel is configured for liquid to flow, the first substrate includes a base substrate and a plurality of control assemblies which are arranged on the base substrate along an extending direction of the channel, each of the plurality of control assemblies includes: a first electrode, a second electrode and a plurality of coils, and the first electrode is configured to input currents into the plurality of coils, and the plurality of coils are connected in parallel to the second electrode.
    Type: Application
    Filed: January 2, 2019
    Publication date: March 4, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenliang YAO, Haochen CUI, Peizhi CAI, Yuelei XIAO, Fengchun PANG, Yue GENG, Le GU, Nan ZHAO, Hui LIAO, Yingying ZHAO, Chuncheng CHE
  • Publication number: 20210060556
    Abstract: A chip for polymerase chain reaction, a method of operating a chip for polymerase chain reaction, and a reaction device are provided. The chip includes: a sample adding region, a mixing region, a temperature cycling region in a sequential arrangement, and at least one driving unit group. The at least one driving unit group includes a plurality of driving units and is configured to drive a liquid drop to move and sequentially pass through the sample adding region, the mixing region, and the temperature cycling region.
    Type: Application
    Filed: January 9, 2019
    Publication date: March 4, 2021
    Applicants: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenliang YAO, Nan ZHAO, Haochen CUI, Peizhi CAI, Fengchun PANG, Yue GENG, Le GU, Yuelei XIAO, Hui LIAO, Yingying ZHAO, Chuncheng CHE
  • Patent number: 10904708
    Abstract: Systems and methods of providing a location that include receiving location data from user equipment, such as a cellphone or mobile device, and providing the location data in an acceptable form to emergency services, such as a Public Safety Answering Point (PSAP). The location data from the user equipment can undergo a shape conversion process prior to being transmitted to emergency services. The systems and methods evaluate the received location data to determine if a semimajor and a semiminor axis of the received location data are equal in magnitude. If so, the shape conversion process is bypassed to prevent error from being introduced into the location data.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: January 26, 2021
    Assignee: T-MOBILE USA, INC.
    Inventors: Wei-Ming Lan, Nan Xiao
  • Publication number: 20200391207
    Abstract: The present disclosure provides a microfluidic chip, a biological detection device and a method. The microfluidic chip includes: a first substrate and a second substrate that are oppositely disposed; a first electrode and a second electrode that are oppositely disposed between the first substrate and the second substrate, the first electrode including a plurality of spaced first electrode units, and the second electrode including a plurality of spaced second electrode units, wherein the first electrode units are disposed oppositely to the second electrode units in one-to-one correspondence; a first dielectric layer and a second dielectric layer between the first electrode and the second electrode; a first hydrophobic layer and a second hydrophobic layer between the first dielectric layer and the second dielectric layer, wherein a gap is between the first hydrophobic layer and the second hydrophobic layer.
    Type: Application
    Filed: October 11, 2018
    Publication date: December 17, 2020
    Inventors: Fengchun PANG, Peizhi CAI, Yue GENG, Le GU, Yingying ZHAO, Haochen CUI, Nan ZHAO, Yuelei XIAO, Hui LIAO, Chuncheng CHE
  • Publication number: 20200360088
    Abstract: Systems and methods are disclosed for blood flow simulation. For example, a method may include performing a plurality of blood flow simulations using a first model of vascular blood flow, each of the plurality of blood flow simulations simulating blood flow in a vasculature of a patient or a geometry based on the vasculature of the patient; based on results of the plurality of blood flow simulations, generating a response surface mapping one or more first parameters of the first model to one or more second parameters of a reduced order model of vascular blood; determining values for the one or more parameters of the reduced order model mapped, by the response surface, from parameter values representing a modified state of the vasculature; and performing simulation using the reduced order model parameterized by the determined values, to determine a blood flow characteristic of the modified state of the vasculature.
    Type: Application
    Filed: May 15, 2020
    Publication date: November 19, 2020
    Applicant: HeartFlow, Inc.
    Inventors: Sethuraman SANKARAN, David LESAGE, Charles TAYLOR, Nan XIAO, Hyun Jin KIM, David SPAIN, Michiel SCHAAP
  • Publication number: 20200356830
    Abstract: The embodiments of the present disclosure provide a method, system and server for utilizing barcode. The method includes: a server receiving a decoding request sent by a user terminal, the decoding request comprising a barcode image associated with a smart device, or a code value of a barcode presented in the barcode image associated with the smart device; the barcode server acquiring state information associated with the code value of the barcode; returning operation information associated with the user if the state information is a second state information; or sending configuration address information to the user terminal for configuring the smart device, and changing the state information associated with the code value, if the state information is a first state information.
    Type: Application
    Filed: July 27, 2020
    Publication date: November 12, 2020
    Inventors: Yao Qin, Qimeng Zou, Nan Xiao, Linqing Wang, Jiankang Sun
  • Publication number: 20200337643
    Abstract: In a method for correcting the interference in respiratory navigation, transmitting, during magnetic resonance scanning, a respiratory signal generated by a radio frequency signal generator to a human body; acquiring, as a measured respiratory signal, a respiratory signal passing through the human body and acquired in a local coil, wherein the measured respiratory signal is constituted by a real respiratory signal and an interference signal; determining, according to a respiratory signal coil sensitivity of the real respiratory signal and an interference signal coil sensitivity of the interference signal, a signal relation that is satisfied by the real respiratory signal, the interference signal and the measured respiratory signal; and calculating the signal relation to obtain the real respiratory signal.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 29, 2020
    Applicant: Siemens Healthcare GmbH
    Inventors: Nan Xiao, De He Weng, Yan Tu Huang, Qiong Zhang
  • Publication number: 20200338549
    Abstract: The present disclosure provides a microfluidic chip, including: first base substrate and a second base substrate opposite to each other; first electrode and second electrode between the first base substrate and the second base substrate and configured to control droplet to move between the first base substrate and the second base substrate according to voltages applied on the first electrode and the second electrode; light guide component configured to guide light propagating in the first base substrate to the droplet; shading component and detection component, shading component having light transmission regions spaced from each other, light transmission regions being configured to transmit light passing through the droplet to the detection component, wherein detection component is on second base substrate and is configured to obtain property of the droplet according to an intensity of the light passing through droplet and received from the light transmission regions.
    Type: Application
    Filed: November 13, 2019
    Publication date: October 29, 2020
    Inventors: Yingying ZHAO, Peizhi CAI, Le GU, Fengchun PANG, Yue GENG, Yuelei XIAO, Haochen CUI, Nan ZHAO, Hui LIAO, Wenliang YAO, Chuncheng CHE
  • Publication number: 20200341087
    Abstract: A k-space data acquisition device and method, and a magnetic resonance imaging device and method. The k-space data acquisition device includes an acquisition trajectory determiner configured to determine an acquisition trajectory of echo signals in a k space in a manner of filling echo data in a pseudo radial order; and a data acquirer configured to acquire k-space data conforming to the acquisition trajectory and fill the k space.
    Type: Application
    Filed: April 24, 2020
    Publication date: October 29, 2020
    Applicant: Siemens Healthcare GmbH
    Inventors: Qiong Zhang, Wei Liu, Nan Xiao
  • Publication number: 20200333419
    Abstract: The present disclosure related to techniques for extracting a respiratory navigation signal for use in a magnetic resonance imaging system. The extracted respiratory navigation signals accurately represent respiratory motions of a patient.
    Type: Application
    Filed: April 17, 2020
    Publication date: October 22, 2020
    Applicant: Siemens Healthcare GmbH
    Inventors: Qiong Zhang, Wei Liu, Nan Xiao
  • Publication number: 20200334781
    Abstract: The present disclosure relates to a system and method for recommending travel services to a user. The method comprises obtaining a current real-time location and a preset area centered around the current real-time location. The method also comprises determining a current real-time transport capacity status of the preset area at the current real-time. The method further comprises comparing the current real-time transport capacity status with a threshold value. The method still further comprises if the current real-time transport capacity status is not larger than the threshold value, obtaining a first data set related to service orders that were placed in a first preset time period in the preset area and a second data set related to service orders placed by the user during a second preset time period, and generating a travel service recommendation for the user based on the first and the second data sets.
    Type: Application
    Filed: June 30, 2020
    Publication date: October 22, 2020
    Applicant: BEIJING DIDI INFINITY TECHNOLOGY AND DEVELOPMENT CO., LTD.
    Inventors: Jun XIAO, Nan YANG, Xinrui LI
  • Publication number: 20200171491
    Abstract: A digital microfluidic chip and a digital microfluidic system. The digital microfluidic chip comprises: an upper substrate and a lower substrate arranged opposite to each other; multiple driving circuits and multiple addressing circuits disposed between the lower substrate and the upper substrate; and a control circuit, electrically connected to the driving circuits and the addressing circuits. The control circuit is configured to apply, in a driving stage, a driving voltage to each driving circuit, such that a droplet is controlled to move inside a droplet accommodation space according to a set path, measure, in a detection stage, after a bias voltage is applied to each addressing circuit, a charge loss amount of each addressing circuit, and to determine the position of the droplet according to the charge loss amount. The charge loss amount of each addressing circuit is related to the intensity of received external light.
    Type: Application
    Filed: July 26, 2019
    Publication date: June 4, 2020
    Inventors: Mingyang LV, Yue LI, Yanchen LI, Jinyu LI, Dawei FENG, Yu ZHAO, Dong WANG, Wang GUO, Hailong WANG, Yue GENG, Peizhi CAI, Fengchun PANG, Le GU, Chuncheng CHE, Haochen CUI, Yingying ZHAO, Nan ZHAO, Yuelei XIAO, Huyi LIAO
  • Publication number: 20200111117
    Abstract: Probing data comprising terminal identifier data is received by a broadcast device, the terminal identifier data identifying terminals that are located within a predetermined distance of the broadcast device. The probing data is uploaded by the broadcast device to a server. An information pushing condition is matched by the server based on the terminal identifier data. Information corresponding to an information pushing condition matching the terminal identifier data is pushed by the server to the broadcast device. The received corresponding information is broadcast by the broadcast device.
    Type: Application
    Filed: December 4, 2019
    Publication date: April 9, 2020
    Applicant: Alibaba Group Holding Limited
    Inventors: Nan Xiao, Zhenyu Yang
  • Patent number: 10598749
    Abstract: In an RF spoiling method and apparatus for rapid spatial saturation in magnetic resonance imaging, a first RF pulse of a spatial saturation module is applied, and a first set of RF pulses of an imaging sequence is applied after the first RF pulse. A phase of an RF pulse, closest to the first RF pulse in the time dimension, in the first set of RF pulses is not coherent with a phase of the first RF pulse. This makes a phase cycle of the spatial saturation module and a phase cycle of the imaging sequence independent of each other, so the coherence of residual signals in the transverse plane can be destroyed more effectively, thereby reducing artefacts, and improving imaging quality.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: March 24, 2020
    Assignee: Siemens Healthcare GmbH
    Inventors: Kun Zhou, Fang Dong, Nan Xiao
  • Publication number: 20200085502
    Abstract: Systems and methods are disclosed for to determining a blood supply and blood demand. One method includes receiving a patient-specific model of vessel geometry of at least a portion of a coronary artery, wherein the model is based on patient-specific image data of at least a portion of a patient's heart having myocardium; determining a coronary blood supply based on the patient-specific model; determining at least a portion of the myocardium corresponding to the coronary artery; determining a myocardial blood demand based on either a mass or a volume of the portion of the myocardium, or based on perfusion imaging of the portion of the myocardium; and determining a relationship between the coronary blood supply and the myocardial blood demand.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Inventors: Charles A. TAYLOR, Hyun Jin KIM, Sophie KHEM, Sethuraman SANKARAN, David Spain, Nan XIAO
  • Publication number: 20200050977
    Abstract: Provided are an intelligent reservation method and device for a seat, and a computer-readable storage medium. The intelligent reservation method for a seat includes: sending a seat information acquisition request; receiving and displaying seat distribution information and seat usage status information of a target site fed back by a server-end device for the seat information acquisition request; receiving a reservation request for a target seat inputted by a user, and sending the reservation request; and receiving and displaying a reservation success message or a reservation failure message fed back by the server-end device for the reservation request.
    Type: Application
    Filed: May 15, 2019
    Publication date: February 13, 2020
    Inventors: Guohua ZHANG, Nan CHEN, Yu XIAO, Dong WANG, Yongzhi SONG