Patents by Inventor Kan Zheng

Kan Zheng 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: 20250086778
    Abstract: A system for detecting filament and needle breakage, including: an image acquisition module, an image processing module and a host computer detection module. The image acquisition module includes a light source, a camera and a lens. The image processing module includes a preprocessing submodule and a detection model. The host computer detection module includes a shutdown control-data interaction submodule of a warp knitting machine, a sensor control board, and a system operation interface. The image acquisition module captures a blanket knitting image at a knitting mechanism of the warp knitting machine. The image processing module pre-processes the blanket knitting image and detects filament and needle breakage. The host computer detection module controls a textile device according to detection results to generate an alarming information. A detection method implemented by the system is further provided.
    Type: Application
    Filed: September 15, 2024
    Publication date: March 13, 2025
    Inventors: Yuanfang CHEN, Jian WANG, Guoqiang JIN, Shengyuan XIAO, Liwei LIU, Shijie ZHU, Xiaoan SUN, Jun NI, Chen QIAN, Kan ZHENG, Zhaoji HU, Xuanxing DU, Hangbin CHEN
  • Patent number: 10666329
    Abstract: A method and a network system capable of enhanced transmission of data signals in a multiple-input multiple-output (MIMO) communication system using a double-layer coordinated beamforming are disclosed. A first layer precoding matrix is obtained from long-term channel state information between user equipment and network equipment, and a second layer precoding matrix obtained from the first layer precoding matrix and from real-time channel state information between the user equipment and the network equipment. The real-time channel state information for the second layer precoding matrix determination includes a predetermined signal-to-interference-plus-noise ratio (SINR), and/or a predetermined power value associated with a single antenna of the user equipment, which are used as optimization parameters. The first and second layer precoding matrices are combined for the double-layer coordinated beamforming.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: May 26, 2020
    Assignee: Orange
    Inventors: Xiaoyu Wang, Jie Mei, Kan Zheng
  • Patent number: 9820277
    Abstract: A method is provided to associate at least one user equipment to a plurality of component carriers. A carrier-to-interference ratio is calculated for each of component carriers available for the user equipment. Differences between the calculated carrier-to-interference ratios are calculated, with each difference being associated to a different one of the component carriers intervening in the difference, the component carriers being ordered in the decreasing order of their carrier frequency. The user equipment is associated with the component carrier having the lowest difference.
    Type: Grant
    Filed: September 27, 2013
    Date of Patent: November 14, 2017
    Assignee: ORANGE
    Inventors: Lijie Hu, Kan Zheng, Lin Huang
  • Publication number: 20170180021
    Abstract: Some embodiments relate to a method for transmitting a signal carrying data in a multiple-input multiple-output communication system. The method comprises applying a double-layer coordinated beamforming. The method also comprises receiving a first layer precoding matrix obtained at least from long-term channel state information between user equipment and network equipment, determining a second layer precoding matrix obtained from the first layer precoding matrix and from real-time channel state information between the user equipment and the network equipment, and obtaining the double-layer coordinated beamforming by combining the first layer precoding matrix and the second layer precoding matrix. Determination of the second layer precoding matrix is optimized by using a predetermined signal-to-interference-plus-noise ratio of the signal, and/or a predetermined power value associated with a single antenna of the user equipment, as optimization parameters.
    Type: Application
    Filed: December 20, 2016
    Publication date: June 22, 2017
    Inventors: Xiaoyu Wang, Jie Mei, Kan Zheng
  • Patent number: 9209887
    Abstract: The present invention discloses a method and device for controlling a relay transmission based on non-reproduction relay mode, comprising: each relay node within a service area to which a source node belongs obtaining channel status information between itself and the source node and channel status information between itself and a destination node, calculating required channel information for relay selection and feeding the required channel information back to the source node; after receiving channel information sent by the relay nodes, the source node, according to the channel information, selecting from the relay nodes a group of relay nodes with greatest feedback values in the channel information to forward information and selecting a group of relay nodes with second greatest feedback values to send interference information, selected relay nodes transmitting information to the destination node in cooperation with the source node in non-reproduction relay mode.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: December 8, 2015
    Assignee: Beijing University of Posts and Telecommunications
    Inventors: Hang Long, Kan Zheng, Fangxiang Wang
  • Publication number: 20150257154
    Abstract: A method is provided to associate at least one user equipment to a plurality of component carriers. A carrier-to-interference ratio is calculated for each of component carriers available for the user equipment. Differences between the calculated carrier-to-interference ratios are calculated, with each difference being associated to a different one of the component carriers intervening in the difference, the component carriers being ordered in the decreasing order of their carrier frequency. The user equipment is associated with the component carrier having the lowest difference.
    Type: Application
    Filed: September 27, 2013
    Publication date: September 10, 2015
    Applicant: Orange
    Inventors: Lijie Hu, Kan Zheng, Lin Huang
  • Patent number: 9048982
    Abstract: Distributed inter-cell interference coordination in a communications system can include: at one other femtocell system, sending channel quality information of a subordinate device communicating with the other femtocell system to the first femtocell system; receiving the channel quality information of the at least one other femtocell system at the first femtocell system; estimating an influence of a use of a resource on the communications system at the first femtocell system according to the channel quality information received by one or more of the at least one other femtocell system; and determining at the first femtocell system whether to use the resource.
    Type: Grant
    Filed: September 16, 2013
    Date of Patent: June 2, 2015
    Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Fanglong Hu, Kan Zheng
  • Patent number: 9008016
    Abstract: A method and apparatus are provided for allocating carriers from a list of carriers in a telecommunication network. Each of the carriers allow transmission of a transmission control frame, each of said transmission control frame has a data block corresponding to a data stream and an indication of the previous carrier allocated to the data stream. The method includes, for a transmission control frame and a carrier selected for allocation to the transmission control frame in the list of carriers, the steps of determining the number of binary bits needed to identify the number of carriers in the list of carriers, coding the indication based on the determined number of binary bits, and removing the allocated carrier from the list of carriers.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: April 14, 2015
    Assignee: France Telecom
    Inventors: Lijie Hu, Kan Zheng, Lin Huang
  • Patent number: 9002011
    Abstract: The present invention discloses a method for generating a consistent cryptographic key based on wireless channel features.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: April 7, 2015
    Assignee: Beijing University of Posts and Telecommunications
    Inventors: Yuexing Peng, Kan Zheng, Guangwei Li
  • Patent number: 8976888
    Abstract: The present invention discloses a method for uplink multi-user cooperation communication, including a first, and a second source node and a target node. When transmitting a signal to the target node, the first source node also transmits the signal to the second source node, the second source node changing to a relay node of the first source node and forwarding the signal to the target node; the target node obtains its reception Signal Noise Ratio (SNR) by using a maximal ratio combining mode according to the signal directly transmitted from the first source node and the signal forwarded from the second source node, sets a precoding policy according to the reception SNR, and selects the optimal precoding as a precoding vector which is used when the first source node transmits a signal to the target node.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: March 10, 2015
    Inventors: Kan Zheng, Hang Long, Fangxiang Wang
  • Publication number: 20140205033
    Abstract: The present invention discloses a method for uplink multi-user cooperation communication, which is applied in a system at least including a first source node, a second source node and a target node, wherein there is a direct transmission link between either the first or the second source node and the target node.
    Type: Application
    Filed: June 30, 2011
    Publication date: July 24, 2014
    Applicant: Beijing University of Posts and Telecommunications
    Inventors: Kan Zheng, Hang Long, Fangxiang Wang
  • Publication number: 20140154970
    Abstract: The present invention discloses a method and device for controlling a relay transmission based on non-reproduction relay mode, comprising: each relay node within a service area to which a source node belongs obtaining channel status information between itself and the source node and channel status information between itself and a destination node, calculating required channel information for relay selection and feeding the required channel information back to the source node; after receiving channel information sent by the relay nodes, the source node, according to the channel information, selecting from the relay nodes a group of relay nodes with greatest feedback values in the channel information to forward information and selecting a group of relay nodes with second greatest feedback values to send interference information, selected relay nodes transmitting information to the destination node in cooperation with the source node in non-reproduction relay mode.
    Type: Application
    Filed: June 30, 2011
    Publication date: June 5, 2014
    Inventors: Hang Long, Kan Zheng, Fangxiang Wang
  • Publication number: 20140140510
    Abstract: The present invention discloses a method for generating a consistent cryptographic key based on wireless channel features.
    Type: Application
    Filed: June 30, 2011
    Publication date: May 22, 2014
    Applicant: Beijing University of Posts and Telecommunications
    Inventors: Yuexing Peng, Kan Zheng, Guangwei Li
  • Publication number: 20140038627
    Abstract: Distributed inter-cell interference coordination in a communications system can include: at one other femtocell system, sending channel quality information of a subordinate device communicating with the other femtocell system to the first femtocell system; receiving the channel quality information of the at least one other femtocell system at the first femtocell system; estimating an influence of a use of a resource on the communications system at the first femtocell system according to the channel quality information received by one or more of the at least one other femtocell system; and determining at the first femtocell system whether to use the resource.
    Type: Application
    Filed: September 16, 2013
    Publication date: February 6, 2014
    Applicant: Empire Technology Development LLC
    Inventors: Fanglong HU, Kan ZHENG
  • Patent number: 8619926
    Abstract: Provided is a method and system for estimating a channel in a wireless communication system. An interference coefficient is calculated based on a known structure of a pilot, and a channel value in a frequency domain is estimated. A channel value in a time domain is obtained by transforming the channel value in the frequency domain and the channel delay values are subtracted from the channel value in the time domain, thereby cancelling interference.
    Type: Grant
    Filed: November 12, 2009
    Date of Patent: December 31, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Yong Su Lee, Young-il Kim, Wenbo Wang, Kan Zheng
  • Patent number: 8538339
    Abstract: Distributed inter-cell interference coordination in a communications system can include: at one other femtocell system, sending channel quality information of a subordinate device communicating with the other femtocell system to the first femtocell system; receiving the channel quality information of the at least one other femtocell system at the first femtocell system; estimating an influence of a use of a resource on the communications system at the first femtocell system according to the channel quality information received by one or more of the at least one other femtocell system; and determining at the first femtocell system whether to use the resource.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: September 17, 2013
    Assignee: Empire Technology Development LLC
    Inventors: Fanglong Hu, Kan Zheng
  • Patent number: 8412243
    Abstract: A power control method performs a scheduling on user terminals and then allows the user terminals to calculate power of interference by neighboring sectors, generates interference information to indicate how much the base stations in neighboring sectors, which interfere with each other, reduce transmission power based on the calculated power of interference, and informs a serving base station thereof. The base stations calculate throughput gain and throughput loss based on the interference information, and determine whether the reduction of the transmission power is performed based on the calculated throughput gain and throughput loss.
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: April 2, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jisoo Park, Young-il Kim, Yuexing Peng, Kan Zheng, Wenbo Wang
  • Publication number: 20130059593
    Abstract: Distributed inter-cell interference coordination in a communications system can include: at one other femtocell system, sending channel quality information of a subordinate device communicating with the other femtocell system to the first femtocell system; receiving the channel quality information of the at least one other femtocell system at the first femtocell system; estimating an influence of a use of a resource on the communications system at the first femtocell system according to the channel quality information received by one or more of the at least one other femtocell system; and determining at the first femtocell system whether to use the resource.
    Type: Application
    Filed: May 4, 2011
    Publication date: March 7, 2013
    Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLC
    Inventors: Fanglong Hu, Kan Zheng
  • Patent number: 8345788
    Abstract: In a method for detecting a signal in a multi-input multi-output wireless communication system that receives signals transmitted through a plurality of transmission antennas by using a plurality of reception antennas, a detection order for detecting the transmission signals received through the reception antennas is determined on the basis of a cofactor determinant of components constituting a channel matrix representing characteristics of channels between the transmission antennas and the reception antennas. In addition, the transmission signal is detected from the signals received through the reception antennas in accordance with the determined detection order.
    Type: Grant
    Filed: December 4, 2009
    Date of Patent: January 1, 2013
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Young Jin Moon, Young-Il Kim, Kan Zheng, Wenbo Wang
  • Patent number: 8336257
    Abstract: A telescoping floor seal assembly comprising an attachment portion adapted to be mounted to a bottom edge of a vertically displaceable partition, and a displaceable sealing portion slideably mounted within the attachment portion for relative displacement therewith between a fully collapsed position and a fully extended position and described. The displaceable sealing portion has at least one longitudinal sealing edge member at a base thereof for contacting a floor when the vertical partition is displaced to a closed position. The attachment portion is substantially vertically displaceable with the vertically displaceable partition while the sealing edge member of the displaceable sealing portion remains in sealing contact with the floor within a predetermined displacement range of vertical movement of the vertical partition.
    Type: Grant
    Filed: September 29, 2010
    Date of Patent: December 25, 2012
    Assignee: Railquip Enterprises Inc.
    Inventors: Mark McDonald, Jack Zagorski, Liang Kan Zheng