Patents by Inventor Qingfeng Li

Qingfeng Li 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: 9888075
    Abstract: A method and an apparatus for data exchange. The method identifies a first user located within a predefined boundary of a second user according to the location information of two users, and updates the basic statuses of the two users according to their behavior records. The method then determines whether a delayed type of a data exchange request requesting a data exchange between the users is preferred, according to the basic status of the first user and/or the second user. Upon receiving the data exchange request, the server executes the data exchange after a delay permitted by the data exchange request. The method determines the delayed type to be preferred if the basic status of one of the users is in a busy state.
    Type: Grant
    Filed: June 8, 2017
    Date of Patent: February 6, 2018
    Assignee: Alibaba Group Holding Limited
    Inventor: Qingfeng Li
  • Patent number: 9883917
    Abstract: Disclosed is a skin dilator, comprising an expander (11), a pipe network provided on the skin-side surface wall (111) of the expander (11) composed of longitudinal tube (22) and horizontal tube (21) having a reticular structure and communicating with each other, and a guide tube (24) communicating with the pipe network. The skin dilator further comprises several burrs (25) distributed on the skin-side surface wall (111) of the expander (11), and several small apertures (23) communicating the inner cavity of the tube with the outside are provided on both of the longitudinal tube (22) and horizontal tube(21). The tissue expander can be infused biological agents by the filling port to the skin expanding site through the small apertures (23), which may accelerate the expansion growth of skin, prevent skin complications, such as necrosis.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: February 6, 2018
    Assignee: SHANGHAI NINTH PEOPLE'S HOSPITAL AFFILIATED, SHANGHAI JIAOTONG, UNIVERSITY SCHOOL OF MEDICINE
    Inventors: Yaokai Gan, Kerong Dai, Qingfeng Li
  • Publication number: 20170272519
    Abstract: A method and an apparatus for data exchange. The method identifies a first user located within a predefined boundary of a second user according to the location information of two users, and updates the basic statuses of the two users according to their behavior records. The method then determines whether a delayed type of a data exchange request requesting a data exchange between the users is preferred, according to the basic status of the first user and/or the second user. Upon receiving the data exchange request, the server executes the data exchange after a delay permitted by the data exchange request. The method determines the delayed type to be preferred if the basic status of one of the users is in a busy state.
    Type: Application
    Filed: June 8, 2017
    Publication date: September 21, 2017
    Inventor: Qingfeng Li
  • Patent number: 9716752
    Abstract: A method and an apparatus for data exchange. The method identifies a first user located within a predefined boundary of a second user according to the location information of two users, and updates the basic statuses of the two users according to their behavior records. The method then determines whether a delayed type of a data exchange request requesting a data exchange between the users is preferred, according to the basic status of the first user and/or the second user. Upon receiving the data exchange request, the server executes the data exchange after a delay permitted by the data exchange request. The method determines the delayed type to be preferred if the basic status of one of the users is in a busy state.
    Type: Grant
    Filed: October 30, 2014
    Date of Patent: July 25, 2017
    Assignee: Alibaba Group Holding Limited
    Inventor: Qingfeng Li
  • Publication number: 20170193510
    Abstract: Providing data processing methods is disclosed, including: receiving a request to provide a plurality of data processing methods to a user; obtaining historical data associated with a plurality of historical user selections associated with the plurality of data processing methods, wherein the plurality of historical user selections is associated with the user; determining a plurality of data processing fingerprint aggregate scores corresponding to respective ones of the plurality of data processing methods based at least in part on the historical data; and providing the plurality of data processing methods based at least in part on the plurality of data processing fingerprint aggregate scores.
    Type: Application
    Filed: January 20, 2017
    Publication date: July 6, 2017
    Inventor: Qingfeng Li
  • Patent number: 9588648
    Abstract: Providing data processing methods is disclosed, including: receiving a request to provide a plurality of data processing methods to a user; obtaining historical data associated with a plurality of historical user selections associated with the plurality of data processing methods, wherein the plurality of historical user selections is associated with the user; determining a plurality of data processing fingerprint aggregate scores corresponding to respective ones of the plurality of data processing methods based at least in part on the historical data; and providing the plurality of data processing methods based at least in part on the plurality of data processing fingerprint aggregate scores.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: March 7, 2017
    Assignee: Alibaba Group Holding Limited
    Inventor: Qingfeng Li
  • Publication number: 20170032398
    Abstract: Method for judging age brackets of users including acquiring consumption data of users and establishing models based on the consumption data. Establishing the models includes dividing the consumption data into training data and test data, calculating a number of the users of the training data in predetermined age brackets, calculating a number of each tertiary category of the training data in the predetermined age brackets, calculating probabilities that each tuple of the test data belongs to each of the predetermined age brackets based on the number of the users and the number of the tertiary categories, selecting the age bracket with the maximum probability as the age bracket to which the user corresponding to the tuple belongs, comparing errors between the predetermined age brackets and the selected age bracket to obtain a predictive error rate, and outputting models with predictive error rates larger than or equal to a predetermined threshold.
    Type: Application
    Filed: April 17, 2015
    Publication date: February 2, 2017
    Inventors: Qingfeng LI, Chuan MOU
  • Publication number: 20160242864
    Abstract: Disclosed is a skin dilator, comprising an expander (11), a pipe network provided on the skin-side surface wall (111) of the expander (11) composed of longitudinal tube (22) and horizontal tube (21) having a reticular structure and communicating with each other, and a guide tube (24) communicating with the pipe network. The skin dilator further comprises several burrs (25) distributed on the skin-side surface wall (111) of the expander (11), and several small apertures (23) communicating the inner cavity of the tube with the outside are provided on both of the longitudinal tube (22) and horizontal tube(21). The tissue expander can be infused biological agents by the filling port to the skin expanding site through the small apertures (23), which may accelerate the expansion growth of skin, prevent skin complications, such as necrosis.
    Type: Application
    Filed: March 13, 2014
    Publication date: August 25, 2016
    Applicant: SHANGHAI NINTH PEOPLE'S HOSPITAL AFFILIATED, SHANGHAI JIAOTONG UNIVERSITY SCHOOL OF MEDICINE
    Inventors: Yaokai GAN, Kerong DAI, Qingfeng LI
  • Publication number: 20160149229
    Abstract: The present invention relates to a novel non-platinum metal catalyst material for use in low temperature fuel cells and electrolysers and to fuel cells and electrolysers comprising the novel non-platinum metal catalyst material. The present invention also relates to a novel method for synthesizing the novel non-platinum metal catalyst material.
    Type: Application
    Filed: June 20, 2014
    Publication date: May 26, 2016
    Applicant: Technical Universit of Denmark
    Inventors: Qingfeng LI, Jens Oluf JENSEN, Yang HU, Niels J. BJERRUM
  • Patent number: 9280516
    Abstract: The present invention provides a method and system using wireless sensors to validate wired sensors used in applications where the requirements on the reliability of wired sensors are stringent. A computing means periodically collects measurements for each variable from the wired and wireless sensors and compares them against an expected value. The expected value is a weighted average of all the measurements for a variable, in which the weight assigned to the measurement from each sensor is determined according to both its reliability and accuracy. As such, measurements are compared with the corresponding expected value for a particular variable. If the difference between a measurement and its corresponding expected value is found to be unacceptable, the validation computer will generate a corresponding alert. Application examples include 1) validating wired sensors used in safety shutdown systems for industrial facilities and 2) validating wired sensors used to monitor storage tanks.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: March 8, 2016
    Assignee: THE UNIVERSITY OF WESTERN ONTARIO
    Inventors: Jin Jiang, Qingfeng Li
  • Publication number: 20150120871
    Abstract: A method and an apparatus for data exchange. The method identifies a first user located within a predefined boundary of a second user according to the location information of two users, and updates the basic statuses of the two users according to their behavior records. The method then determines whether a delayed type of a data exchange request requesting a data exchange between the users is preferred, according to the basic status of the first user and/or the second user. Upon receiving the data exchange request, the server executes the data exchange after a delay permitted by the data exchange request. The method determines the delayed type to be preferred if the basic status of one of the users is in a busy state.
    Type: Application
    Filed: October 30, 2014
    Publication date: April 30, 2015
    Inventor: Qingfeng Li
  • Publication number: 20150019567
    Abstract: Providing data processing methods is disclosed, including: receiving a request to provide a plurality of data processing methods to a user; obtaining historical data associated with a plurality of historical user selections associated with the plurality of data processing methods, wherein the plurality of historical user selections is associated with the user; determining a plurality of data processing fingerprint aggregate scores corresponding to respective ones of the plurality of data processing methods based at least in part on the historical data; and providing the plurality of data processing methods based at least in part on the plurality of data processing fingerprint aggregate scores.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Inventor: Qingfeng Li
  • Patent number: 8803868
    Abstract: Power conservation for mobile device displays. An embodiment of a method includes generating display images for a display screen of a mobile device, and transitioning the mobile device to a reduced power consumption state. The reduced power consumption state includes reducing one or more illumination factors for the display screen; and reducing one or more animation factors for the display screen.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: August 12, 2014
    Assignee: Intel Corporation
    Inventors: Bran Ferren, Prashant Gandhi, Ajaya Durg, Qingfeng Li, Lakshman Krishnamurthy
  • Publication number: 20130157646
    Abstract: Power conservation for mobile device displays. An embodiment of a method includes generating display images for a display screen of a mobile device, and transitioning the mobile device to a reduced power consumption state. The reduced power consumption state includes reducing one or more illumination factors for the display screen; and reducing one or more animation factors for the display screen.
    Type: Application
    Filed: February 19, 2013
    Publication date: June 20, 2013
    Inventors: Bran Ferren, Prashant Gandhi, Ajaya Durg, Qingfeng Li, Lakshman Krishnamurthy
  • Patent number: 8446398
    Abstract: Power conservation for mobile device displays. An embodiment of a method includes generating display images for a display screen of a mobile device, and transitioning the mobile device to a reduced power consumption state. The reduced power consumption state includes reducing one or more illumination factors for the display screen; and reducing one or more animation factors for the display screen.
    Type: Grant
    Filed: December 23, 2009
    Date of Patent: May 21, 2013
    Assignee: Intel Corporation
    Inventors: Bran Ferren, Prashant Gandhi, Ajaya Durg, Qingfeng Li, Lakshman Krishnamurthy
  • Patent number: 8434780
    Abstract: A rollator is disclosed in this invention. The rollator includes: a base frame; front wheel assemblies and rear wheel assemblies respectively mounted on both sides of the base frame; an inverted U-shaped supporting pipe; a H-shaped armrest bracket; connection pieces having block grooves thereon; a slide control lever for cooperating with the block grooves; a seat plate; a spring element; wherein the base frame is provided with unidirectional hinged seats; both bottom ends of the supporting pipe are hinged to the base frame, and both side arms of the supporting pipe are provided with slide holes facing each other; the armrest bracket has bottom portions hinged to the unidirectional hinged seat. The rollator has a simple structure and can be used for various situations in both folded and unfolded state.
    Type: Grant
    Filed: September 14, 2010
    Date of Patent: May 7, 2013
    Assignee: Genteel Homecare Products Co., Ltd.
    Inventor: Qingfeng Li
  • Publication number: 20130103350
    Abstract: The present invention provides a method and system using wireless sensors to validate wired sensors used in applications where the requirements on the reliability of wired sensors are stringent. A computing means periodically collects measurements for each variable from the wired and wireless sensors and compares them against an expected value. The expected value is a weighted average of all the measurements for a variable, in which the weight assigned to the measurement from each sensor is determined according to both its reliability and accuracy. As such, measurements are compared with the corresponding expected value for a particular variable. If the difference between a measurement and its corresponding expected value is found to be unacceptable, the validation computer will generate a corresponding alert. Application examples include 1) validating wired sensors used in safety shutdown systems for industrial facilities and 2) validating wired sensors used to monitor storage tanks.
    Type: Application
    Filed: April 5, 2012
    Publication date: April 25, 2013
    Applicant: THE UNIVERSITY OF WESTERN ONTARIO
    Inventors: Jin Jiang, Qingfeng Li
  • Publication number: 20120270122
    Abstract: The present invention relates to a method of operating a fuel cell system comprising one or more fuel cells with a proton exchange membrane, wherein the membrane is composed of a polymeric material comprising acid-doped polybenzimidazole (PBI). The method comprises adjusting the operating temperature of the fuel cell to between 120 and 250° C., supplying an oxidant stream to the cathode, and supplying a humidified fuel stream to the anode, said fuel stream comprising dimethyl ether, wherein dimethyl ether is directly oxidised at the anode.
    Type: Application
    Filed: September 21, 2010
    Publication date: October 25, 2012
    Applicant: DANMARKS TEKNISKE UNIVERSITET - DTU
    Inventors: Jens Oluf Jensen, Qingfeng Li, Niels J. Bjerrum, Thomas Steenberg
  • Patent number: D654636
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: February 21, 2012
    Assignee: Laborsing Safety Products Inc.
    Inventor: Qingfeng Li
  • Patent number: D690884
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: October 1, 2013
    Assignee: Laborsing Safety Products Inc.
    Inventor: Qingfeng Li