Patents by Inventor Xiaocheng Liu
Xiaocheng 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).
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Patent number: 11976557Abstract: The present disclosure provides a coal bump control method for sectional hydraulic fracturing regions of a near vertical ultra thick coal seam. The method includes: deepening a main shaft from a mining level to a fracturing level; excavating a cross-hole from a roof rock layer of a coal seam at the fracturing level to enter a coal seam being mined, and excavating a roadway along the strike of the coal seam; and drilling hydraulic fracturing boreholes in a dedicated fracturing roadway along an inclination angle of the coal seam to the coal seam above the roadway, wherein the length of the borehole makes the borehole in communication with a goaf, and the spacing of the boreholes along the strike and the sectional spacing of the boreholes in an inclination direction are designed according to the parameters of fracturing equipments and the fracturing length.Type: GrantFiled: August 18, 2022Date of Patent: May 7, 2024Assignees: University of Science and Technology Beijing, North China Institute of Science and Technology, Beijing Anke Xingye Science and Technology Co., Ltd.Inventors: Sitao Zhu, Gaoang Wang, Fuxing Jiang, Gang Yao, Tao Zhou, Jinhai Liu, Huan Li, Zhen Kong, Qingbo He, Xiaocheng Qu, Quande Wei, Yitong Huang, Shaohua Sun
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Publication number: 20240133155Abstract: The present disclosure relates to a backhoe loader for efficient digging. The backhoe loader includes: a vehicle body, including a first vehicle body and a second vehicle body which are connected sequentially; a loading device, arranged on the first vehicle body; a control platform, arranged on the second vehicle body and configured to rotate by 360° relative to the second vehicle body; a cab, arranged on a first side of the control platform; and an excavating device, arranged on a second side of the control platform opposite to the first side, the excavating device being configured to rotate by 180° relative to the cab. The backhoe loader can realize functions of 360° excavating and bidirectional driving. When the excavating device works, the backhoe loader can be directly moved by folding stabilizers and without changing the position of a seat back and forth, so that the excavating efficiency is improved.Type: ApplicationFiled: December 31, 2021Publication date: April 25, 2024Applicant: JIANGSU XCMG CONSTRUCTION MACHINERY RESEARCH INSTITUTE LTD.Inventors: Yanbo GENG, Xiaocheng LIU, Weiwei JIN
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Patent number: 11923973Abstract: 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: GrantFiled: October 7, 2022Date of Patent: March 5, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yiqun Ge, Xiaocheng Liu
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Publication number: 20240056219Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.Type: ApplicationFiled: August 14, 2023Publication date: February 15, 2024Inventors: Rong LI, Gongzheng ZHANG, Ying CHEN, Xiaocheng LIU, Jun WANG
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Publication number: 20240030931Abstract: A signal processing method and an apparatus thereof. A first signal is received, wherein the first signal includes x symbols. N types of quantization levels are determined based on a signal distribution parameter of the first signal. A second signal is determined based on the first signal. Quantization processing is performed on the second signal to obtain x groups of first quantization results, wherein the x symbols are in one-to-one correspondence with the x groups of first quantization results. The x groups of first quantization results are mapped to a quantized first signal, wherein the quantized first signal includes x quantization levels, and each group of first quantization results is mapped to one of the N types of quantization levels. Signal processing is performed on the quantized first signal.Type: ApplicationFiled: September 28, 2023Publication date: January 25, 2024Inventors: Tianhang YU, Xiaocheng LIU, Gongzheng ZHANG, Shengchen DAI, Rong LI, Jun WANG
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Patent number: 11870573Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.Type: GrantFiled: April 26, 2022Date of Patent: January 9, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Rong Li, Gongzheng Zhang, Ying Chen, Xiaocheng Liu, Jun Wang
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Publication number: 20230046507Abstract: 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: ApplicationFiled: October 7, 2022Publication date: February 16, 2023Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yiqun Ge, Xiaocheng Liu
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Patent number: 11509414Abstract: 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: GrantFiled: June 4, 2020Date of Patent: November 22, 2022Assignee: Huawei Technologies, Co., Ltd.Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yiqun Ge, Xiaocheng Liu
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Publication number: 20220311541Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.Type: ApplicationFiled: April 26, 2022Publication date: September 29, 2022Inventors: Rong LI, Gongzheng ZHANG, Ying CHEN, Xiaocheng LIU, Jun WANG
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Patent number: 11444640Abstract: The present disclosure relates to encoding method and devices. One example method includes determining N to-be-encoded bits, where the N to-be-encoded bits include information bits and frozen bits, obtaining a first polarization weight vector including polarization weights of N polarized channels, where the N to-be-encoded bits correspond to the N polarized channels, determining positions of the information bits based on the first polarization weight vector, and performing polar encoding on the N to-be-encoded bits to obtain polar-encoded bits.Type: GrantFiled: December 28, 2020Date of Patent: September 13, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Xiaocheng Liu, Ying Chen, Rong Li
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Patent number: 11374682Abstract: 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: GrantFiled: November 25, 2019Date of Patent: June 28, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Huazi Zhang, Jiajie Tong, Rong Li, Jun Wang, Wen Tong, Yiqun Ge, Xiaocheng Liu
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Patent number: 11368249Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.Type: GrantFiled: December 23, 2020Date of Patent: June 21, 2022Assignee: Huawei Technologies Co., Ltd.Inventors: Rong Li, Gongzheng Zhang, Ying Chen, Xiaocheng Liu, Jun Wang
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Publication number: 20220103189Abstract: The present disclosure relates to encoding method and devices. One example method includes determining N to-be-encoded bits, where the N to-be-encoded bits include information bits and frozen bits, obtaining a first polarization weight vector including polarization weights of N polarized channels, where the N to-be-encoded bits correspond to the N polarized channels, determining positions of the information bits based on the first polarization weight vector, and performing polar encoding on the N to-be-encoded bits to obtain polar-encoded bits.Type: ApplicationFiled: December 28, 2020Publication date: March 31, 2022Inventors: Xiaocheng Liu, Ying Chen, Rong Li
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Patent number: 11195263Abstract: A method and system for selecting an image acquisition device. The method may include obtaining a set of device parameter corresponding to at least one image acquisition device. Each device parameter may correspond to an image acquisition device. The device parameters may include a pixel size, and a focal length. The method may include, for each image acquisition device, determining one or more first evaluation values of a target region based at least on the device parameter of the image acquisition device. Each first evaluation value may correspond to a first installation parameter of the image acquisition device. The method may include designating the image acquisition device as a target image acquisition device in response to a determination that at least one first evaluation value is greater than or equal to an evaluation value threshold.Type: GrantFiled: February 2, 2021Date of Patent: December 7, 2021Assignee: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventor: Xiaocheng Liu
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Patent number: 11171673Abstract: A decoding method and apparatus are provided, to improve a degree of parallelism in decoded bit decisions and reduce a decoding delay. The method includes: performing a hard decision on each LLR in an inputted LLR vector having a length of M to obtain a first vector, where M?N and N is a length of to-be-decoded information; sequentially performing negation of some elements of the first vector to obtain L vectors; and then determining decoding results of the LLR vector based on the L vectors.Type: GrantFiled: July 8, 2020Date of Patent: November 9, 2021Assignee: Huawei Technologies Co., Ltd.Inventors: Jiajie Tong, Huazi Zhang, Yunfei Qiao, Rong Li, Xiaocheng Liu, Jun Wang
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Patent number: 11063608Abstract: A polar code coding/decoding method, a sending device, and a receiving device are disclosed. The method includes: selecting, by a sending device, K non-punctured-position sequence numbers as a reference sequence number set based on a quantity K of information bits and a reliability-based order of N polarized channels of a polar code whose code length is N, where a reliability of a polarized channel corresponding to any sequence number in the reference sequence number set is greater than or equal to reliabilities of polarized channels corresponding to remaining (N?K) sequence numbers; determining, by the sending device, an information-bit sequence number set based on a determining condition and the reference sequence number set; and performing, by the sending device, polar coding on to-be-coded bits based on the information-bit sequence number set.Type: GrantFiled: October 23, 2019Date of Patent: July 13, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Ying Chen, Xiaocheng Liu, Lingchen Huang, Yue Zhou, Rong Li, Hejia Luo, Jun Wang
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Publication number: 20210194504Abstract: The present disclosure relates to encoding method and devices. One example method includes determining N to-be-encoded bits, where the N to-be-encoded bits include information bits and frozen bits, obtaining a first polarization weight vector including polarization weights of N polarized channels, where the N to-be-encoded bits correspond to the N polarized channels, determining positions of the information bits based on the first polarization weight vector, and performing polar encoding on the N to-be-encoded bits to obtain polar-encoded bits.Type: ApplicationFiled: December 28, 2020Publication date: June 24, 2021Inventors: Xiaocheng Liu, Ying Chen, Rong Li
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Publication number: 20210183040Abstract: A method and system for selecting an image acquisition device. The method may include obtaining a set of device parameter corresponding to at least one image acquisition device. Each device parameter may correspond to an image acquisition device. The device parameters may include a pixel size, and a focal length. The method may include, for each image acquisition device, determining one or more first evaluation values of a target region based at least on the device parameter of the image acquisition device. Each first evaluation value may correspond to a first installation parameter of the image acquisition device. The method may include designating the image acquisition device as a target image acquisition device in response to a determination that at least one first evaluation value is greater than or equal to an evaluation value threshold.Type: ApplicationFiled: February 2, 2021Publication date: June 17, 2021Applicant: ZHEJIANG DAHUA TECHNOLOGY CO., LTD.Inventor: Xiaocheng LIU
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Publication number: 20210176007Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.Type: ApplicationFiled: December 23, 2020Publication date: June 10, 2021Inventors: Rong LI, Gongzheng ZHANG, Ying CHEN, Xiaocheng LIU, Jun WANG
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Patent number: 10892851Abstract: Embodiments of this application disclose a polar coding method, apparatus, and device, so as to reduce storage overheads of a system. A sequence for polar coding is obtained based on a length M of a target polar code, wherein the sequence comprises L sequence numbers, ordering of the L sequence numbers in the sequence is the same as ordering of the L sequence numbers in a maximum mother code sequence, wherein the maximum mother code sequence is obtained by sorting N sequence numbers of N polarized channels in ascending order or descending order of reliability metrics, wherein L and N are integer power of 2, M is smaller than or equal to L, L is smaller than or equal to N.Type: GrantFiled: March 7, 2019Date of Patent: January 12, 2021Assignee: HUAWEI TECHNOLOGIES CO., LTD.Inventors: Rong Li, Gongzheng Zhang, Ying Chen, Xiaocheng Liu, Jun Wang