Patents by Inventor Lei Fan

Lei Fan 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: 10450274
    Abstract: Quinoline compounds and salts, hydrates or solvates serving as a selective uric acid reabsorption inhibitor, can be used in the treatment of hyperuricemia and gout by promoting uric acid to excrete from the body and reducing serum uric acid. Such compounds have the effect of reducing the uric acid in the animal body and human body.
    Type: Grant
    Filed: December 6, 2016
    Date of Patent: October 22, 2019
    Assignee: HINOVA PHARMACEUTICALS INC.
    Inventors: Lei Fan, Wu Du, Xinghai Li, Yuanwei Chen, Kexin Xu, Ke Chen, Shaohua Zhang, Tongchuan Luo
  • Publication number: 20190286101
    Abstract: Statistically significant event patterns predict the timing for performing entity maintenance. Event patterns are determined based on a target variable having an undesired value for a given entity when the event pattern occurs. Event patterns are filtered based on distributions of the event patterns across multiple entities and distributions of event patterns during desired operation of the entities and undesired operation of the entities. A predictive maintenance process is established having significant event patterns as the basis for maintenance tasks.
    Type: Application
    Filed: May 31, 2019
    Publication date: September 19, 2019
    Inventors: LEI FAN, SIER HAN, XIAO MING MA, A PENG ZHANG
  • Publication number: 20190130090
    Abstract: A device for biometric recognition, a method for biometric recognition, and a biometric template registration method are disclosed. The device comprises: a sensor for sensing information of a biometric feature; and a security chip for storing a template of the biometric feature, obtaining the information, performing image preprocessing and feature extraction on the obtained information, and comparing features with the stored template to determine a biometric recognition result. Since the whole biometric recognition process is executed in an independent security chip, the security is greatly improved compared with traditional logic isolation solutions.
    Type: Application
    Filed: June 9, 2017
    Publication date: May 2, 2019
    Applicants: Chipone Technology (Beijing) Co., Ltd, Chipone System Technology (Beijing) Co., Ltd.
    Inventors: Kun Li, Dong Xu, Lei Fan, Jinfang Zhang
  • Publication number: 20190121318
    Abstract: Statistically significant event patterns predict the timing for performing entity maintenance. Event patterns are determined based on a target variable having an undesired value for a given entity when the event pattern occurs. Event patterns are filtered based on distributions of the event patterns across multiple entities and distributions of event patterns during desired operation of the entities and undesired operation of the entities. A predictive maintenance process is established having significant event patterns as the basis for maintenance tasks.
    Type: Application
    Filed: October 19, 2017
    Publication date: April 25, 2019
    Inventors: LEI FAN, SIER HAN, XIAO MING MA, A PENG ZHANG
  • Patent number: 10192117
    Abstract: A method for graph-based spatiotemporal video segmentation and automatic target object extraction in high-dimensional feature space includes using a processor to automatically analyze an entire volumetric video sequence; using the processor to construct a high-dimensional feature space that includes color, motion, time, and location information so that pixels in the entire volumetric video sequence are reorganized according to their unique and distinguishable feature vectors; using the processor to create a graph model that fuses the appearance, spatial, and temporal information of all pixels of the video sequence in the high-dimensional feature space; and using the processor to group pixels in the graph model that are inherently similar and assign the same labels to them to form semantic spatiotemporal key segments.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: January 29, 2019
    Assignee: KODAK ALARIS INC.
    Inventors: Alexander C. Loui, Lei Fan
  • Publication number: 20180362466
    Abstract: Quinoline compounds and salts, hydrates or solvates serving as a selective uric acid reabsorption inhibitor, can be used in the treatment of hyperuricemia and gout by promoting uric acid to excrete from the body and reducing serum uric acid. Such compounds have the effect of reducing the uric acid in the animal body and human body.
    Type: Application
    Filed: December 6, 2016
    Publication date: December 20, 2018
    Inventors: Lei FAN, Wu DU, Xinghai LI, Yuanwei CHEN, Kexin XU, Ke CHEN, Shaohua ZHANG, Tongchuan LUO
  • Publication number: 20180325419
    Abstract: A method of tracking a medical instrument comprises receiving a model of an anatomical passageway formation and receiving a set of ordered sensor records for the medical instrument. The set of ordered sensor records provide a path history of the medical instrument. The method further comprises registering the medical instrument with the model of the anatomical passageway formation based on the path history. The method further includes displaying a virtual visualization image in a display system, the virtual visualization image being based on the registering of the medical instrument with the model of the anatomical passageway and depicting a rendered view of the model of the anatomical passageway from a perspective of the medical instrument within the model of the anatomical passageway.
    Type: Application
    Filed: July 2, 2018
    Publication date: November 15, 2018
    Applicant: INTUITIVE SURGICAL OPERATIONS, INC.
    Inventors: Tao Zhao, Prashant Chopra, Vincent Duindam, Dorin Panescu, Lei Fan
  • Publication number: 20180292064
    Abstract: A lighting apparatus, including a support frame including a frame body and a first pivoting structure provided on the frame body; a lighting module including a second pivoting structure, which is pivotably engaged with the first pivoting structure such that the lighting module is allowed to pivot about a pivoting axis relative to the support frame; and an adjusting and positioning mechanism positioned to be offset from the pivoting axis, connected with the support frame and the lighting module, and configured to adjust and hold a pivoting position of the lighting module relative to the support frame. The present disclosure further provides an automobile vehicle.
    Type: Application
    Filed: April 11, 2018
    Publication date: October 11, 2018
    Applicant: VALEO LIGHTING HUBEI TECHNICAL CENTER CO. LTD
    Inventors: Haiqing ZHOU, Pingwu YANG, Si CHEN, Lei FAN
  • Patent number: 10039473
    Abstract: A method of tracking a medical instrument comprises receiving a model of an anatomical passageway formation and receiving a set of ordered sensor records for the medical instrument. The set of ordered sensor records provide a path history of the medical instrument. The method further comprises registering the medical instrument with the model of the anatomical passageway formation based on the path history.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: August 7, 2018
    Assignee: Intuitive Surgical Operations, Inc.
    Inventors: Tao Zhao, Prashant Chopra, Vincent Duindam, Dorin Panescu, Lei Fan
  • Publication number: 20180030640
    Abstract: A steam generator and a laundry treatment machine having the same are provided, in which the steam generator includes a housing, a heater and a temperature controller, in which the housing defines a steam generating cavity therein and has a water inlet and a steam outlet in communication with the steam generating cavity, and the heater is disposed in the steam generating cavity, the temperature controller is disposed in the steam generating cavity and is connected to the heater, and the temperature controller is configured to detect the temperature of the heater, the temperature controller controls the heater to heat up and the water inlet to close when the temperature of the heater is below a predetermined temperature, and controls the heater to stop heating and the water inlet to open when the temperature of the heater reaches a predetermined temperature.
    Type: Application
    Filed: January 23, 2017
    Publication date: February 1, 2018
    Inventors: Hao CHEN, Fei PENG, Haifeng WANG, Tao CHEN, Lei FAN, Wei ZHOU, Li ZHEN
  • Publication number: 20160379055
    Abstract: A method for graph-based spatiotemporal video segmentation and automatic target object extraction in high-dimensional feature space includes using a processor to automatically analyze an entire volumetric video sequence; using the processor to construct a high-dimensional feature space that includes color, motion, time, and location information so that pixels in the entire volumetric video sequence are reorganized according to their unique and distinguishable feature vectors; using the processor to create a graph model that fuses the appearance, spatial, and temporal information of all pixels of the video sequence in the high-dimensional feature space; and using the processor to group pixels in the graph model that are inherently similar and assign the same labels to them to form semantic spatiotemporal key segments.
    Type: Application
    Filed: May 27, 2016
    Publication date: December 29, 2016
    Applicant: Kodak Alaris Inc.
    Inventors: Alexander C. Loui, Lei Fan
  • Patent number: 9461908
    Abstract: A method of route convergence, a routing device, and a main control board in the routing device are provided herein. The method includes receiving route information from multiple neighbor routing devices; selecting a route among the received route information, and applying the selected route to update an FIB of the main control board; and delivering the selected route to an interface board after confirming that the route information from the multiple neighbor routing devices is received and the route selection is completed.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: October 4, 2016
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Chang Wang, Yong Li, Hui Ni, Yuan Rao, Zhengliang Li, Lei Fan, Xiaohui Liu, Qing Zeng
  • Publication number: 20160240332
    Abstract: A switch and a method of manufacturing the switch are provided. In one embodiment, the switch comprises a switch assembly adapted to receive a first force in a first direction; and a protective member arranged on a substrate and adapted to receive the switch assembly, the protective member comprising a spring portion applying a second force to the switch assembly in a second direction that is opposite to the first direction, the switch assembly being adapted to be moved relative to the substrate in response to the first force exceeding a predefined threshold value. The switch is capable of absorbing excessive energy by a force applied on the switch, thus preventing the excessive energy breaking the substrate to which the switch is mounted.
    Type: Application
    Filed: December 15, 2015
    Publication date: August 18, 2016
    Inventors: Chong Chen, Wuyang Huang, Lei Fan, Qingchun Liu
  • Patent number: 8953461
    Abstract: A method, device, and system for processing Border Gateway Protocol (BGP) route are provided, which relate to the field of network communication technologies. The method includes: receiving a BGP route sent by a BGP neighbor; obtaining a route prefix of the BGP route according to the BGP route; determining, according to the route prefix, a BGP route storing and processing module corresponding to the route prefix; and sending the BGP route to the determined BGP route storing and processing module, so that the BGP route storing and processing module processes the received BGP route. A device and a system for processing BGP route are also provided. Therefore, the processing efficiency of the BGP route is improved, and the high extensibility is realized.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: February 10, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Lixin Zhang, Shuanglong Chen, Yuan Rao, Lei Fan, Boyan Tu, Jianwen Liu, Jianbin Xu, Qing Zeng
  • Patent number: 8801469
    Abstract: An electrical connector for mounting to a print circuit board includes an insulative housing, a metal shell shielding around the housing and a plurality of terminals received in the housing. Each terminal having a body section and a contact section extending from the body section, the housing includes a first housing and a second housing, the body section being received in the second housing and the contact section extending from the second housing to the first housing. The first housing has a first dielectric constant and the second housing has a second dielectric constant higher than the first dielectric constant so as to prevent the characteristic impedance change.
    Type: Grant
    Filed: August 2, 2012
    Date of Patent: August 12, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Jerry Wu, Jun Chen, Hong-Lei Fan
  • Patent number: 8696380
    Abstract: An electrical connector includes an insulative housing, a plurality of contacts mounted in the insulative housing and a pair of fastening modules assembled to the insulative housing. The insulative housing forms a main base with a mating portion and a holder portion defined on the main base. Each fastening module includes a securing base assembled to the holder portion of the main base and a fastening member assembled with the securing base.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: April 15, 2014
    Assignee: Hon Hai Precision Industry Co., Ltd.
    Inventors: Ping-Sheng Su, Hong-Lei Fan, Fan-Bo Meng
  • Publication number: 20130303892
    Abstract: A method of tracking a medical instrument comprises receiving a model of an anatomical passageway formation and receiving a set of ordered sensor records for the medical instrument. The set of ordered sensor records provide a path history of the medical instrument. The method further comprises registering the medical instrument with the model of the anatomical passageway formation based on the path history.
    Type: Application
    Filed: May 13, 2013
    Publication date: November 14, 2013
    Applicant: Intuitive Surgical Operations, Inc.
    Inventors: Tao Zhao, Prashant Chopra, Vincent Duindam, Dorin Panescu, Lei Fan
  • Publication number: 20130034995
    Abstract: An electrical connector for mounting to a print circuit board includes an insulative housing, a metal shell shielding around the housing and a plurality of terminals received in the housing. Each terminal having a body section and a contact section extending from the body section, the housing includes a first housing and a second housing, the body section being received in the second housing and the contact section extending from the second housing to the first housing. The first housing has a first dielectric constant and the second housing has a second dielectric constant higher than the first dielectric constant so as to prevent the characteristic impedance change.
    Type: Application
    Filed: August 2, 2012
    Publication date: February 7, 2013
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: JERRY WU, JUN CHEN, HONG-LEI FAN
  • Patent number: 8325921
    Abstract: The present invention provides a portable memory, comprising: a key storage unit for storing a register key for the portable memory; a key receiving unit for receiving a first key entered by a user and generating a second key based on the first key; an identification unit for comparing the second key with the register key to obtain a comparison result; a key generation unit for generating an encryption/decryption key if the comparison result indicates that the second key matches the register key; a chip for encrypting/decrypting a data stream exchanged between a computer and the portable memory by using the encryption/decryption key. The portable memory constitutes a system itself, and thus can perform encryption/decryption operations independent of external systems, resulting in a reduced cost. The present invention also provides a method of encrypting a portable memory.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: December 4, 2012
    Assignee: Lenovo (Beijing) Limited
    Inventors: Lei Fan, Cheng Chen
  • Publication number: 20120064761
    Abstract: An electrical connector includes an insulative housing, a plurality of contacts mounted in the insulative housing and a pair of fastening modules assembled to the insulative housing. The insulative housing forms a main base with a mating portion and a holder portion defined on the main base. Each fastening module includes a securing base assembled to the holder portion of the main base and a fastening member assembled with the securing base.
    Type: Application
    Filed: September 15, 2011
    Publication date: March 15, 2012
    Applicant: HON HAI PRECISION INDUSTRY CO., LTD.
    Inventors: Ping-Sheng Su, Hong-Lei Fan, Fan-Bo Meng