Patents by Inventor Yiqun Liu

Yiqun Liu 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: 10822913
    Abstract: A plugging and wall reinforcing device and a method of using thereof. The nesting plugging and wall reinforcing device comprises an external slotted metal pipe and an internal nested blasting tool, wherein the slotted metal pipe has spiral slits or straight slits cut on a pipe wall thereof; the nested blasting tool is a mandrel having a surface provided with a plurality of explosive grooves in which explosives are placed; the slotted metal pipe is disposed around the mandrel, with a movable fit therebetween. The present invention can effectively improve the plugging success rate.
    Type: Grant
    Filed: January 8, 2019
    Date of Patent: November 3, 2020
    Assignee: China University of Petroleum-Beijing
    Inventors: Yiqun Zhang, Ya Liu, Gensheng Li, Zhongwei Huang, Huaizhong Shi, Xianzhi Song, Mao Sheng, Lu Ji
  • Publication number: 20200336745
    Abstract: The present disclosure relates to encoding and decoding video by employing texture coding. In particular, a texture region is identified within a video picture and a texture patch is determined for the texture region. Moreover, a first set of parameters is derived specifying weighting factors for reconstructing spectral coefficients of the texture region by fitting the texture region in a spectral domain to a first function of the texture patch, the first function being defined by the first set of parameters. The texture patch and the first set of parameters are then included into a bitstream which is output by an encoder and provided in this way to the decoder which reconstructs the texture based on the patch and the function applied to the patch.
    Type: Application
    Filed: June 8, 2020
    Publication date: October 22, 2020
    Inventors: Zhijie ZHAO, Bastian WANDT, Yiqun LIU, Thorsten LAUDE, Bodo ROSENHAHN, Joern OSTERMANN
  • Publication number: 20200304798
    Abstract: The present disclosure relates to encoding a decoding video employing texture coding. In particular, a texture region is identified within a video picture and a texture patch is determined for said region. Moreover, a set of parameters specifies luminance within the texture region (1001) by fitting the texture region samples to a two-dimensional polynomial function of the patch determined according to the set of parameters (1040); and/or motion within the texture region by fitting motion estimated between the texture region of the video picture and an adjacent picture to a two-dimensional polynomial The texture patch and the first set of parameters are then included into a bitstream which is output of the encoder and provided in this way to the decoder which reconstructs the texture based on the patch and the function applied to the patch.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 24, 2020
    Inventors: Zhijie ZHAO, Bastian WANDT, Yiqun LIU, Thorsten LAUDE, Bodo ROSENHAHN, Joern OSTERMANN
  • Publication number: 20200304797
    Abstract: A texture region is identified within a video picture, and a texture patch is determined for the region. Clustering is performed to identify a texture region within the video image. The clustering is further refined. In particular, one or more brightness parameters of a polynomial is determined by fitting the polynomial to the identified texture region. In the identified texture region, samples are detected with a distance to the fitted polynomial exceeding a first threshold. A refined texture region is identified as the texture region excluding one or more of the detected samples. The refined texture region is encoded separately from portions of the video image not belonging to the refined texture region.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 24, 2020
    Inventors: Zhijie ZHAO, Bastian WANDT, Yiqun LIU, Thorsten LAUDE, Joern OSTERMANN, Bodo ROSENHAHN
  • Publication number: 20200295867
    Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes polar encoding, with an encoder of the device, information bits and at least one parity bit using the polar code to obtain encoded data, and transmitting the encoded data to another device. The polar code comprises a plurality of sub-channels. The at least one parity bit being placed in at least one of the plurality of sub-channels. The at least one sub-channel is selected from the plurality of sub-channels based on a weight parameter.
    Type: Application
    Filed: June 4, 2020
    Publication date: September 17, 2020
    Applicants: Huawei Technologies Co., Ltd., Huawei Technologies Co., Ltd.
    Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yiqun Ge, Xiaocheng Liu
  • Patent number: 10700808
    Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes polar encoding, with an encoder of the device, information bits and at least one parity bit using the polar code to obtain encoded data, and transmitting the encoded data to another device. The polar code comprises a plurality of sub-channels. The at least one parity bit being placed in at least one of the plurality of sub-channels. The at least one sub-channel is selected from the plurality of sub-channels based on a weight parameter.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: June 30, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yiqun Ge, Xiaocheng Liu, Gongzheng Zhang, Jian Wang, Nan Cheng, Qifan Zhang
  • Publication number: 20200163054
    Abstract: A broadcast signalling method performed by a network device having a protocol stack of with first and second protocol layers where the second protocol layer is below the first protocol layer, the method including generating, by the network device, first information at the first protocol layer, generating, by the network device, second information at the second protocol layer, where the second information is used to determine a time-frequency resource corresponding to one or more synchronization signal blocks (SSBs), processing, by the network device, the first information and the second information at the second protocol layer, and sending, by the network device to a terminal device by using a physical broadcast channel (PBCH) in the one or more SSBs, data obtained after second protocol layer processing.
    Type: Application
    Filed: November 4, 2019
    Publication date: May 21, 2020
    Inventors: Jin Liu, Yiqun Ge, Pu Yuan, Jun Luo
  • Publication number: 20200150227
    Abstract: The present invention discloses a laser range finder for two-color switching display, comprising a monocular telescope, a laser light emitting system, a laser receiver and an OLED liquid crystal display (LCD) imaging system, wherein the monocular telescope comprises an objective lens, a roof half penta prism, a cemented prism, an eyepiece and an LCD unit; laser light emitted by the laser light emitting system is emitted onto an object to be measured, and the reflected back laser light is received by the laser receiver after passing through the objective lens, the roof half penta prism and the cemented prism; and light emitted by the OLED LCD imaging system is imaged on the focal plane of the eyepiece through the cemented prism. The present invention can achieve two-color display of the laser range finder, meeting the requirements for use in a variety of conditions.
    Type: Application
    Filed: January 9, 2020
    Publication date: May 14, 2020
    Inventors: Xiangwei Qian, Chongqiu Liu, Yiqun Fan
  • Patent number: 10644829
    Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. The row weight for a sub-channel may be viewed as the number of “ones” in the corresponding row of the Kronecker matrix or as a power of 2 with the exponent (i.e. the hamming weight) being the number of “ones” in the binary representation of the sub-channel index (further described below). In one embodiment, candidate sub-channels that have certain row weight values are reserved for parity bit(s). Thereafter, K information bits may be mapped to the K most reliable remaining sub-channels, and a number of frozen bits (e.g. N?K) may be mapped to the least reliable remaining sub-channels. Parity bits may then mapped to the candidate sub-channels, and parity bit values are determined based on a function of the information bits.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: May 5, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yiqun Ge, Xiaocheng Liu, Gongzheng Zhang, Jian Wang, Nan Cheng, Qifan Zhang
  • Patent number: 10637607
    Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. The row weight for a sub-channel may be viewed as the number of “ones” in the corresponding row of the Kronecker matrix or as a power of 2 with the exponent (i.e. the hamming weight) being the number of “ones” in the binary representation of the sub-channel index (further described below). In one embodiment, candidate sub-channels that have certain row weight values are reserved for parity bit(s). Thereafter, K information bits may be mapped to the K most reliable remaining sub-channels, and a number of frozen bits (e.g. N?K) may be mapped to the least reliable remaining sub-channels. Parity bits may then mapped to the candidate sub-channels, and parity bit values are determined based on a function of the information bits.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: April 28, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yiqun Ge, Xiaocheng Liu, Gongzheng Zhang, Jian Wang, Nan Cheng, Qifan Zhang
  • Publication number: 20200024590
    Abstract: An enzyme synthesizes hydroxyl acetaldehyde and/or 1,3-dihydroxyacetone by catalyzing formaldehyde. Site-directed mutation of benzoylformate decarboxylase (BFD) creates a mutant of the enzyme, which can polymerize the formaldehyde, A phosphoketalose (F/XPK) generates acetyl phosphoric acid from the hydroxyl acetaldehyde or 1,3-dihydroxyacetone (DHA). Combination with phosphotransacetylase (Pta) provides a route from the formaldehyde to acetyl coenzyme A in three steps.
    Type: Application
    Filed: February 12, 2018
    Publication date: January 23, 2020
    Inventors: Huifeng Jiang, Xiaoyun Lu, Yuwan Liu, Yiqun Yang, Lina Lu, Sheng Yang, Junran Gou
  • Patent number: 10536716
    Abstract: A frame buffer is adapted to store at least one reference frame of a video stream, said reference frame being different from a current frame of the video stream. A motion estimation unit is adapted to generate a motion vector by estimating motion between a reference block of the reference frame and a current block of the current frame. A blurring filter selection unit is adapted to select one of a plurality of blurring filters depending on the orientation of the motion vector. A filtering unit is adapted to generate a filtered reference block by applying the selected blurring filter to the reference block. A motion compensation unit is adapted to generate a filtered prediction block of the current block on the basis of the current block, the motion vector and the filtered reference block.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: January 14, 2020
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhijie Zhao, Yiqun Liu, Joern Ostermann
  • Publication number: 20190370707
    Abstract: In an example embodiment, a confidential data architecture is extended by providing components for reliably inferring confidential data insights (e.g., median salary) for cohorts with little or no actual submitted confidential data. This is performed by inferring confidential data values based on organizations that are considered to be peers to the organization of interest. This solution involves two parts: the generation of a novel, semantic representation (embedding) of organizations to be used to compute a similarity measure between any two organizations, and the use of the semantic representation to compute a peer organization group of a given company.
    Type: Application
    Filed: May 31, 2018
    Publication date: December 5, 2019
    Inventor: Yiqun Liu
  • Patent number: 10491326
    Abstract: Embodiment techniques map parity bits to sub-channels based on their row weights. In one example, an embodiment technique includes allocating, from a set of sub-channels, one or more sub-channels for one or more parity bits based on row weights for sub-channels in a subset of sub-channels within the set of sub-channels, mapping information bits to remaining sub-channels in the set of sub-channels based on a reliability of the remaining sub-channels without mapping any of the information bits to the one or more sub-channels allocated for the one or more parity bits, polar encoding the information bits and the one or more parity bits based on at least the mapping of the information bits to the remaining sub-channels to obtain encoded bits, and transmitting the encoded bits to another device.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: November 26, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yiqun Ge, Xiaocheng Liu, Gongzheng Zhang, Jian Wang, Nan Cheng, Qifan Zhang
  • Patent number: 10491921
    Abstract: A frame buffer is adapted to store at least one reference frame of a video stream, said reference frame being different from a current frame of the video stream. A motion estimation unit is adapted to generate a motion vector by estimating motion between a reference block of the reference frame and a current block of the current frame. A blurring filter selection unit is adapted to select one of a plurality of blurring filters depending on the orientation of the motion vector. A filtering unit is adapted to generate a filtered reference block by applying the selected blurring filter to the reference block. A motion compensation unit is adapted to generate a filtered prediction block of the current block on the basis of the current block, the motion vector and the filtered reference block.
    Type: Grant
    Filed: November 21, 2017
    Date of Patent: November 26, 2019
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Zhijie Zhao, Yiqun Liu, Joern Ostermann
  • Publication number: 20190245665
    Abstract: The present invention discloses a method, a device and a system for transmitting an enhanced downlink control channel, which belong to the communications field. The method for sending an enhanced downlink control channel includes: presetting a multiplexing unit, where the multiplexing unit includes at least one resource block pair, and the at least one resource block pair includes E-PDCCH resources and DM RS resources, and the E-PDCCH resources include multiple control channel elements; sending at least one E-PDCCH corresponding to at least one UE in at least one control channel element of the multiplexing unit, and sending the DM RS corresponding to the at least one UE. The present invention reduces the granularity of an enhanced downlink control channel, saves resources and enhances the downlink control channel, thereby providing more control channels for the UE to use.
    Type: Application
    Filed: April 16, 2019
    Publication date: August 8, 2019
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Qiang Wu, Yiqun Qian, Yang Li, Jianghua Liu
  • Publication number: 20190153809
    Abstract: An energy-gathered bundle type nesting plugging and wall reinforcing device and an application thereof in karst cave plugging. The energy-gathered bundle type nesting plugging and wall reinforcing device comprises an external slotted metal pipe (1) and an internal nesting blasting tool, wherein the slotted metal pipe (1) has spiral slits (2) or straight slits (3) cut on a pipe wall thereof; the nesting blasting tool is a mandrel (5) having a surface provided with a plurality of explosive grooves (4) in which explosives are placed; the slotted metal pipe (1) is disposed to sleeve the mandrel (5) and fixed, with a movable fit therebetween. The present invention can solve the difficulty that the plugging material cannot easily reside to form a bridge, and effectively improving the plugging success rate.
    Type: Application
    Filed: January 8, 2019
    Publication date: May 23, 2019
    Inventors: Yiqun Zhang, Ya Liu, Gensheng Li, Zhongwei Huang, Huaizhong Shi, Xianzhi Song, Mao Sheng, Lu Ji
  • Publication number: 20190129995
    Abstract: Disclosed are systems, methods, and non-transitory computer-readable media for expanding search queries. A search system identifies, based on search parameters received from a client device, a target company identified in the search parameters. The search parameters include a search term comprising at least two keywords, a first one of the at least two keyword identifying the target company, and the second one of the at least two keywords identifying an employment position. The search system identifies a second company based on a set of peer scores indicating a probability of employees transitioning between companies. The peer scores are calculated based on historical movement data indicating employee transitions between companies. The search system generates an expanded search term comprising a new keyword identifying the second company and the second keyword identifying the employment position.
    Type: Application
    Filed: February 28, 2018
    Publication date: May 2, 2019
    Inventors: Saurabh Kataria, Yiqun Liu, Ada Cheuk Ying Yu, Dhruv Arya
  • Publication number: 20180253696
    Abstract: An on-line social network system includes or is in communication with a recommendation system that is configured to use signals indicating that multiple members have viewed the same job posting to determine whether a particular job posting should be recommended to a certain member. The recommendation system monitors job view events with respect to job postings and stores the associated viewership data. The viewership data is used to identify a job posting that has been viewed by a member that also viewed a job previously recommended to a subject member and selectively recommend that co-viewed job posting to the subject member.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 6, 2018
    Inventors: Krishnaram Kenthapadi, Yiqun Liu, Bo Zhao
  • Publication number: 20180253695
    Abstract: An on-line social network system includes or is in communication with a recommendation system that is configured to leverage job posting similarity information for selecting one or more job postings for presentation to a member. The recommendation system accesses a profile of a subject member, engages the relevance model to select job postings for presentation to the subject member based on the respective relevance values generated for the job postings, and also selects one or more additional jobs to be presented to the member based on respective job posting similarity scores generated for these additional job postings.
    Type: Application
    Filed: March 6, 2017
    Publication date: September 6, 2018
    Inventors: Krishnaram Kenthapadi, Yiqun Liu, Bo Zhao