Patents by Inventor Qinglong Liu
Qinglong 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: 11960421Abstract: The present disclosure discloses example operation accelerators and compression methods. One example operation accelerator performs operations, including storing, in a first buffer, first input data. In a second buffer, weight data can be stored. A computation result is obtained by performing matrix multiplication on the first input data and the weight data by an operation circuit connected to the input buffer and the weight buffer. The computation result is compressed by a compression module to obtain compressed data. The compressed data can be stored into a memory outside the operation accelerator by a direct memory access controller (DMAC) connected to the compression module.Type: GrantFiled: March 29, 2021Date of Patent: April 16, 2024Assignee: Huawei Technologies Co., Ltd.Inventors: Baoqing Liu, Hu Liu, Qinglong Chen
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Publication number: 20240100295Abstract: A catheter retainer and a catheter-protecting device including the catheter retainer are disclosed. The catheter retainer defines a channel configured for passage of a pre-shaped section of a catheter therethrough. The channel includes a first channel section and a second channel section. The first channel section is configured for passage of a straight section of a tip of the catheter therethrough, and the second channel section is configured for passage of a bent section of the tip of the catheter therethrough. The catheter retainer including the first channel section and the second channel section is able to ensure that an angle of a pre-shaped end of the catheter can be maintained without decreasing for a long time, allowing an operator to directly use and deploy the catheter at a lesion site without having to subjecting it to a steam shaping process. This can reduce the time required for preoperative preparation.Type: ApplicationFiled: January 20, 2022Publication date: March 28, 2024Inventors: Qinglong LIU, Yunyun LIU, Xueli LUO, Yuxi CUN
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Publication number: 20240058574Abstract: A medical catheter and a method for fabricating it are disclosed. The medical catheter includes a catheter body including a proximal section and a distal section sequentially arranged along an axis. Stiffness of the proximal section is greater than stiffness of the distal section. The distal section includes a transition section and a flexible section from a proximal end to a distal end thereof. Stiffness of the flexible section is smaller than stiffness of the transition section. The stiffness of the transition section gradually decreases from a proximal end to a distal end thereof. A ratio of an axial length of the flexible section to an axial length of the transition section is 0.05-0.4. This axial stiffness design of the medical catheter can achieve a balance between its accessibility and support performance, which can result in better therapeutic outcomes of a surgical procedure.Type: ApplicationFiled: November 24, 2021Publication date: February 22, 2024Inventors: Yunyun LIU, Qinglong LIU, Xueli LUO, Yumei LIU
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Publication number: 20230393300Abstract: A multi-sector data correction method for gamma imaging while drilling includes the steps of: (a) dividing each gamma imaging sector into a plurality of counting zones; (b) counting a number of valid counting pulses for each counting zone at a predetermined time interval during MWD; (c) constructing a plurality of measurement vectors based on a value of recording times of each counting zone; (d) establishing a correction matrix with a conditional number less than a set value through an optimization algorithm; and (e) calculating a gamma intensity of each measured sector with the plurality of measurement vectors and the correction matrix as constructed, so as to complete the correction on the measurement data of each measured sector for each predetermined time interval. This method eliminate problems such as rotational measurement distortion of the gamma imaging while drilling tool and improve the accuracy of calculating the formation dip angle.Type: ApplicationFiled: October 15, 2021Publication date: December 7, 2023Inventors: Luyang DING, Ningning YANG, Haiquan TANG, Zhen YANG, Nan LIN, Mingquan HUANG, Qinglong LIU, Quanjin YANG, Xiaolin ZHANG, Zhiyong ZHANG, Chuntian HAN, Hai MA, Xiaohui CUI, Chao LU, Xin CHENG
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Publication number: 20230065180Abstract: A flow blocking catheter including an inner tube, an outer tube and a flow blocking member is provided. The outer tube is sleeved on an exterior of the inner tube and at least one end of the flow blocking member is coupled to the inner or outer tube. The ratio of the inner diameter of the inner tube to the outer diameter of the outer tube is equal to or greater than 0.7. With this arrangement, the inner diameter of the flow blocking catheter is able to be increased at a given outer diameter thereof, which makes it suitable for the treatment of large-size blood clots or passage of instruments and broadens its application range as well as improving effect of vascular treatments.Type: ApplicationFiled: August 30, 2021Publication date: March 2, 2023Inventors: Yuxi CUN, Yunyun LIU, Qinglong LIU, Yumei LIU
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Patent number: 10228022Abstract: A manufacturing method of precision machine tool bearing with high precision stability includes the procedures: (1) microstructural stabilization of bearing body: by cold ring rolling, two liquid quenching, ultrasonic assisted multiple cryo-tempering treatment and stress ageing treatment, the bearing body with high microstructure stability can be obtained; (2) precision machining; (3) internal stress relaxation of bearing body: after precision machining, by executing magnetic treatment on the bearing body, bearing ring with high microstructure stability and low internal stresses can be obtained; and (4) bearing assembly: finally precision machine tool bearing with high precision stability can be obtained.Type: GrantFiled: December 6, 2016Date of Patent: March 12, 2019Assignee: WUHAN UNIVERSITY OF TECHNOLOGYInventors: Dongsheng Qian, Lin Hua, Huajie Mao, Qinglong Liu, Jiadong Deng
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Patent number: 9927548Abstract: The disclosure relates to an apparatus and a method for well logging as well as a data processing device thereof. Said apparatus for well logging comprises a drill collar body and an array of antennas, wherein said array of antennas comprises at least a pair of transmitting antenna and receiving antenna, said transmitting antenna and receiving antenna are configured for generating a curve of axial forward depth of investigation. By employing the method for well logging according to the present invention, not only the variation of resistivity in the axial forward formation may be measured in real time during the drilling, but also the interfacial characteristics of the axial forward formations having different resistivity may be discriminated during drilling.Type: GrantFiled: May 27, 2016Date of Patent: March 27, 2018Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SHENGLI DRILLING TECHNOLOGY RESEARCH INSTITUTE OF SINOPECInventors: Jinzhou Yang, Zuohui Li, Nan Lin, Baojun Wei, Qinglong Liu, Hongbing Xiao
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Publication number: 20180051751Abstract: A manufacturing method of precision machine tool bearing with high precision stability includes the procedures: (1) microstructural stabilization of bearing body: by cold ring rolling, two liquid quenching, ultrasonic assisted multiple cryo-tempering treatment and stress ageing treatment, the bearing body with high microstructure stability can be obtained; (2) precision machining; (3) internal stress relaxation of bearing body: after precision machining, by executing magnetic treatment on the bearing body, bearing ring with high microstructure stability and low internal stresses can be obtained; and (4) bearing assembly: finally precision machine tool bearing with high precision stability can be obtained.Type: ApplicationFiled: December 6, 2016Publication date: February 22, 2018Inventors: Dongsheng QIAN, Lin HUA, Huajie MAO, Qinglong LIU, Jiadong DENG
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Patent number: 9598937Abstract: The present disclosure relates to a downhole rotating magnetic field generator, wherein a stator assembly is formed by fixedly connecting a guiding stator, windings, and a body together, and a rotor assembly is formed by mounting a turbine rotor and a permanent magnet together. Between the stator assembly and the rotor assembly, sliding bearings are arranged and small mud passages are formed. There is no metal isolation between the rotor and the stator for cutting through the magnetic lines of force, so that the eddy current loss is relatively small. Meanwhile, with mud flowing through the passages as lubricant, overheating of the generator can be prevented and high power output can be ensured.Type: GrantFiled: August 28, 2012Date of Patent: March 21, 2017Assignees: CHINA PETROLEUM & CHEMICAL CORPORATION, SHENGLI DRILLING TECHNOLOGY RESEARCH INSTITUTE OF SINOPECInventors: Wei Chen, Laiju Han, Zuohui Li, Feng Sun, Yifeng Wang, Qinglong Liu, Fengling Xu, Zhenhua Lv
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Publication number: 20160274265Abstract: The disclosure relates to an apparatus and a method for well logging as well as a data processing device thereof. Said apparatus for well logging comprises a drill collar body and an array of antennas, wherein said array of antennas comprises at least a pair of transmitting antenna and receiving antenna, said transmitting antenna and receiving antenna are configured for generating a curve of axial forward depth of investigation. By employing the method for well logging according to the present invention, not only the variation of resistivity in the axial forward formation may be measured in real time during the drilling, but also the interfacial characteristics of the axial forward formations having different resistivity may be discriminated during drilling.Type: ApplicationFiled: May 27, 2016Publication date: September 22, 2016Inventors: Jinzhou YANG, Zuohui LI, Nan LIN, Baojun WEI, Qinglong LIU, Hongbing XIAO
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Patent number: 9377555Abstract: The disclosure relates to an apparatus and a method for well logging as well as a data processing device thereof. Said apparatus for well logging comprises a drill collar body and an array of antennas, wherein said array of antennas comprises at least a pair of transmitting antenna and receiving antenna, said transmitting antenna and receiving antenna are configured for generating a curve of axial forward depth of investigation. By employing the method for well logging according to the present invention, not only the variation of resistivity in the axial forward formation may be measured in real time during the drilling, but also the interfacial characteristics of the axial forward formations having different resistivity may be discriminated during drilling.Type: GrantFiled: December 14, 2011Date of Patent: June 28, 2016Assignees: China Petroleum & Chemical Corporation, Shengli Drilling Technology Research Institute of SinopecInventors: Jinzhou Yang, Zuohui Li, Nan Lin, Baojun Wei, Qinglong Liu, Hongbing Xiao
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Publication number: 20140251592Abstract: The present disclosure relates to a downhole rotating magnetic field generator, wherein a stator assembly is formed by fixedly connecting a guiding stator, windings, and a body together, and a rotor assembly is formed by mounting a turbine rotor and a permanent magnet together. Between the stator assembly and the rotor assembly, sliding bearings are arranged and small mud passages are formed. There is no metal isolation between the rotor and the stator for cutting through the magnetic lines of force, so that the eddy current loss is relatively small. Meanwhile, with mud flowing through the passages as lubricant, overheating of the generator can be prevented and high power output can be ensured.Type: ApplicationFiled: August 28, 2012Publication date: September 11, 2014Applicants: SHENGLI DRILLING TECHNOLOG RESEARCH INSTITUTE OF SINOPEC, CHINA PETROLEUM & CHEMICAL CORPOATIONInventors: Wei Chen, Laiju Han, Zuohui Li, Feng Sun, Yifeng Wang, Qinglong Liu, Fengling Xu, Zhenhua Lv
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Publication number: 20130338925Abstract: The disclosure relates to an apparatus and a method for well logging as well as a data processing device thereof. Said apparatus for well logging comprises a drill collar body and an array of antennas, wherein said array of antennas comprises at least a pair of transmitting antenna and receiving antenna, said transmitting antenna and receiving antenna are configured for generating a curve of axial forward depth of investigation. By employing the method for well logging according to the present invention, not only the variation of resistivity in the axial forward formation may be measured in real time during the drilling, but also the interfacial characteristics of the axial forward formations having different resistivity may be discriminated during drilling.Type: ApplicationFiled: December 14, 2011Publication date: December 19, 2013Inventors: Jinzhou Yang, Zuohui Li, Nan Li, Baojun Wei, Qinglong Liu, Hongbing Xiao