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).
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Publication number: 20250086778Abstract: 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: ApplicationFiled: September 15, 2024Publication date: March 13, 2025Inventors: 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
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Patent number: 10666329Abstract: 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: GrantFiled: December 20, 2016Date of Patent: May 26, 2020Assignee: OrangeInventors: Xiaoyu Wang, Jie Mei, Kan Zheng
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Patent number: 9820277Abstract: 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: GrantFiled: September 27, 2013Date of Patent: November 14, 2017Assignee: ORANGEInventors: Lijie Hu, Kan Zheng, Lin Huang
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Publication number: 20170180021Abstract: 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: ApplicationFiled: December 20, 2016Publication date: June 22, 2017Inventors: Xiaoyu Wang, Jie Mei, Kan Zheng
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Patent number: 9209887Abstract: 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: GrantFiled: June 30, 2011Date of Patent: December 8, 2015Assignee: Beijing University of Posts and TelecommunicationsInventors: Hang Long, Kan Zheng, Fangxiang Wang
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Publication number: 20150257154Abstract: 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: ApplicationFiled: September 27, 2013Publication date: September 10, 2015Applicant: OrangeInventors: Lijie Hu, Kan Zheng, Lin Huang
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Patent number: 9048982Abstract: 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: GrantFiled: September 16, 2013Date of Patent: June 2, 2015Assignee: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventors: Fanglong Hu, Kan Zheng
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Patent number: 9008016Abstract: 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: GrantFiled: November 30, 2010Date of Patent: April 14, 2015Assignee: France TelecomInventors: Lijie Hu, Kan Zheng, Lin Huang
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Patent number: 9002011Abstract: The present invention discloses a method for generating a consistent cryptographic key based on wireless channel features.Type: GrantFiled: June 30, 2011Date of Patent: April 7, 2015Assignee: Beijing University of Posts and TelecommunicationsInventors: Yuexing Peng, Kan Zheng, Guangwei Li
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Patent number: 8976888Abstract: 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: GrantFiled: June 30, 2011Date of Patent: March 10, 2015Inventors: Kan Zheng, Hang Long, Fangxiang Wang
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Publication number: 20140205033Abstract: 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: ApplicationFiled: June 30, 2011Publication date: July 24, 2014Applicant: Beijing University of Posts and TelecommunicationsInventors: Kan Zheng, Hang Long, Fangxiang Wang
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Publication number: 20140154970Abstract: 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: ApplicationFiled: June 30, 2011Publication date: June 5, 2014Inventors: Hang Long, Kan Zheng, Fangxiang Wang
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Publication number: 20140140510Abstract: The present invention discloses a method for generating a consistent cryptographic key based on wireless channel features.Type: ApplicationFiled: June 30, 2011Publication date: May 22, 2014Applicant: Beijing University of Posts and TelecommunicationsInventors: Yuexing Peng, Kan Zheng, Guangwei Li
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Publication number: 20140038627Abstract: 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: ApplicationFiled: September 16, 2013Publication date: February 6, 2014Applicant: Empire Technology Development LLCInventors: Fanglong HU, Kan ZHENG
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Patent number: 8619926Abstract: 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: GrantFiled: November 12, 2009Date of Patent: December 31, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Yong Su Lee, Young-il Kim, Wenbo Wang, Kan Zheng
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Patent number: 8538339Abstract: 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: GrantFiled: May 4, 2011Date of Patent: September 17, 2013Assignee: Empire Technology Development LLCInventors: Fanglong Hu, Kan Zheng
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Patent number: 8412243Abstract: 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: GrantFiled: December 3, 2009Date of Patent: April 2, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Jisoo Park, Young-il Kim, Yuexing Peng, Kan Zheng, Wenbo Wang
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Publication number: 20130059593Abstract: 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: ApplicationFiled: May 4, 2011Publication date: March 7, 2013Applicant: EMPIRE TECHNOLOGY DEVELOPMENT LLCInventors: Fanglong Hu, Kan Zheng
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Patent number: 8345788Abstract: 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: GrantFiled: December 4, 2009Date of Patent: January 1, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Young Jin Moon, Young-Il Kim, Kan Zheng, Wenbo Wang
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Patent number: 8336257Abstract: 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: GrantFiled: September 29, 2010Date of Patent: December 25, 2012Assignee: Railquip Enterprises Inc.Inventors: Mark McDonald, Jack Zagorski, Liang Kan Zheng