Patents by Inventor Yulin Zhang
Yulin Zhang 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: 20240241376Abstract: A beam combining device, enabled to combine a first beam with a second beam of a different spectrum into a combined beam, where the combination may be obtained through a device comprising two antireflective coating, a dichroic filter coating, and a reflective coating arranged on a substrate.Type: ApplicationFiled: February 20, 2023Publication date: July 18, 2024Inventors: Tyler You, Fadian Le, Jian Gao, Qiujie Zhang, Yulin Zhang
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Publication number: 20240146169Abstract: The invention provides a focusing motor, a closed-loop control method for the focusing motor, and a camera device. The focusing motor includes a mover bracket and a mover plate mounted thereon, a stator and first stator plates and second stator plates mounted thereon, and a processing unit connected to the mover pole plate, the first stator plate and the second stator plate. The mover pole plate is positioned opposite the first stator plate and the second stator plate, and the facing areas change with the movement of the mover bracket. The processing unit controls the movement of the mover bracket in the focusing direction based on the capacitance signals formed by the mover pole plate and the first stator plate as well as the capacitance signals formed by the second stator plate.Type: ApplicationFiled: December 30, 2023Publication date: May 2, 2024Inventors: Yaoguo Zhang, Bo Xia, Yulin Zhang
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Patent number: 11946374Abstract: The disclosure relates to an omni-directional horizontally oriented deflecting tool for a coiled tubing, which includes an inner central pipe, an outer central pipe, a conical outer cylinder, a piston outer cylinder, an anchoring mechanism, a sealing mechanism, a reversing mechanism and a steering mechanism. The anchoring mechanism includes a cone, an O-shaped sealing ring I, a cone spring, a slip, a slip spring, a slip seat, a claw I and a pin shaft I, and the sealing mechanism includes a piston, an O-shaped sealing ring II, a claw II, a pin shaft II, an upper rubber cylinder seat, a rubber cylinder, a connecting cylinder, a lower rubber cylinder seat and a gasket.Type: GrantFiled: July 5, 2023Date of Patent: April 2, 2024Assignee: Southwest Petroleum UniversityInventors: Yang Tang, Miantao Guan, Yulin Zhang, Peng Zhao, Guorong Wang, Jinhai Zhao, Qingyou Liu, Jinzhong Wang, Xiang Gao, Yufa He, Hu Deng, Liming Fan, Rutao Ma
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Publication number: 20240044211Abstract: The disclosure relates to an omni-directional horizontally oriented deflecting tool for a coiled tubing, which includes an inner central pipe, an outer central pipe, a conical outer cylinder, a piston outer cylinder, an anchoring mechanism, a sealing mechanism, a reversing mechanism and a steering mechanism. The anchoring mechanism includes a cone, an O-shaped sealing ring I, a cone spring, a slip, a slip spring, a slip seat, a claw I and a pin shaft I, and the sealing mechanism includes a piston, an O-shaped sealing ring II, a claw II, a pin shaft II, an upper rubber cylinder seat, a rubber cylinder, a connecting cylinder, a lower rubber cylinder seat and a gasket.Type: ApplicationFiled: July 5, 2023Publication date: February 8, 2024Inventors: Yang TANG, Miantao GUAN, Yulin ZHANG, Peng ZHAO, Guorong WANG, Jinhai ZHAO, Qingyou LIU, Jinzhong WANG, Xiang GAO, Yufa HE, Hu DENG, Liming FAN, Rutao MA
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Publication number: 20240003473Abstract: A pure electric modular subsea test tree is provided, which includes a connect-disconnect device, wherein the first channel is formed in the connect-disconnect device; the connect-disconnect device is provided with a locking assembly and a connection drive mechanism for driving the locking assembly, and the first electrical connection plug is embedded in the connect-disconnect device, and the connection drive mechanism is electrically connected with the first electrical connection plug; a shear-seal assembly, wherein a second channel communicated with the first channel is formed in the shear-seal assembly; the shear-seal assembly includes at least one shear-seal device capable of plugging the second channel; a connection part is formed on the shear-seal assembly; a heating device is arranged at one end of the shear-seal device far from the connection part. The disclosure relates to a pure electric modular subsea test tree, which has fast response speed and high operation safety.Type: ApplicationFiled: February 14, 2023Publication date: January 4, 2024Inventors: Yang TANG, Yulin ZHANG, Guorong WANG, Yufa HE, Jianfei WEI, Jinhai ZHAO, Zeliang LI, Jinzhong WANG, Wang LI, Wujun TONG, Jie WANG
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Patent number: 11671709Abstract: In accordance with the present disclosure, a method for controlling an anti-vibration actuator is provided such that the position of the applied opposite rotation in a gyro stabilization process can be measured using capacitance sensing. In some embodiments, a rotor plate attached to a rotor and a stator plate attached to a stator can be used to create a capacitance. When the rotor moves, a distance change value of the rotor can be calculated based on the capacitance measured between the rotor plate and the stator plate. In these embodiments, the cost and the form factor of the aforementioned anti-vibration actuator are reduced compared to implementation of magnetic field sensors in the anti-vibration actuator.Type: GrantFiled: December 14, 2021Date of Patent: June 6, 2023Assignee: CHIPSEMI SEMICONDUCTOR (NINGBO) CO., LTD.Inventors: Yaoguo Zhang, Bo Xia, Yulin Zhang
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Publication number: 20220209636Abstract: One of the main objects of the present disclosure is to provide a vibration motor which improves the stability and reliability. To achieve the above-mentioned objects, the present disclosure provides a vibration motor, including: a housing with an accommodation space; a vibration member and a fixed member, an elastic support member suspending the vibration member in the accommodation space. The elastic support member includes a first fixed part fixed on the vibration member, a first elastic arm, a second elastic arm, and a second fixed part. The first fixed part and the second fixed part are respectively located on opposite sides of the vibration member along a vibration direction of the vibration member.Type: ApplicationFiled: December 6, 2021Publication date: June 30, 2022Inventors: Yan Shao, Xiaorong Zhou, Fanghua Ling, Feng Tao, Yulin Zhang
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Publication number: 20220187563Abstract: In accordance with the present disclosure, a method for controlling an autofocus actuator is provided such that the actual position of the autofocus actuator can be measured using capacitance sensing. In some embodiments, a rotor plate attached to a rotor and a stator plate attached to a stator in the autofocus actuator can be used to create a capacitance. When the rotor moves, a capacitance change value between the rotor plate and the stator plate can be measured. In these embodiments, the cost and the form factor of the aforementioned autofocus actuator are reduced compared to implementation of magnetic field sensors in the autofocus actuator.Type: ApplicationFiled: December 14, 2021Publication date: June 16, 2022Inventors: Yaoguo Zhang, Bo Xia, Yulin Zhang
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Publication number: 20220191373Abstract: In accordance with the present disclosure, a method for controlling an anti-vibration actuator is provided such that the position of the applied opposite rotation in a gyro stabilization process can be measured using capacitance sensing. In some embodiments, a rotor plate attached to a rotor and a stator plate attached to a stator can be used to create a capacitance. When the rotor moves, a distance change value of the rotor can be calculated based on the capacitance measured between the rotor plate and the stator plate. In these embodiments, the cost and the form factor of the aforementioned anti-vibration actuator are reduced compared to implementation of magnetic field sensors in the anti-vibration actuator.Type: ApplicationFiled: December 14, 2021Publication date: June 16, 2022Inventors: Yaoguo Zhang, Bo Xia, Yulin Zhang
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Patent number: 11170739Abstract: A display optimization and display driving method and apparatus, display apparatus, and storage medium are disclosed. The display optimization method includes: selecting an irregular-shaped edge of a display panel, calculating an area ratio of an area of a display region of a pixel unit passed by the irregular-shaped edge and an area of the pixel unit; and determining a grayscale parameter of the pixel unit according to the area ratio.Type: GrantFiled: July 19, 2019Date of Patent: November 9, 2021Assignees: ORDOS YUANSHENG OPTOELECTRONICS CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.Inventors: Wei Li, Pan Guo, Yulin Zhang
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Patent number: 10890781Abstract: A lens driving device includes two pairs of an image-stabilization coil part and an image-stabilization magnet part disposed along a first side and a second side that are adjacent to each other, respectively. An autofocus movable part is disposed eccentrically with respect to a central axis along the direction of the optical axis. An image-stabilization fixed part includes connection terminal parts that are respectively disposed on the first side and the second side, and are connected to power supply wiring of the image-stabilization coil part.Type: GrantFiled: January 15, 2018Date of Patent: January 12, 2021Assignee: MITSUMI ELECTRIC CO., LTD.Inventors: Yulin Zhang, Masayoshi Sugawara
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Publication number: 20200202817Abstract: A display optimization and display driving method and apparatus, display apparatus, and storage medium are disclosed. The display optimization method includes: selecting an irregular-shaped edge of a display panel, calculating an area ratio of an area of a display region of a pixel unit passed by the irregular-shaped edge and an area of the pixel unit; and determining a grayscale parameter of the pixel unit according to the area ratio.Type: ApplicationFiled: July 19, 2019Publication date: June 25, 2020Inventors: Wei LI, Pan GUO, Yulin ZHANG
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Publication number: 20200041811Abstract: Provided are a lens drive device, a camera module, and a camera-equipped device. A set consisting of an image-stabilization coil part and an image-stabilization magnet part in the lens drive device is disposed along a first side and a second side that are adjacent to each other. An autofocus movable part is disposed eccentrically with respect to a central axis along the direction of the optical axis. An image-stabilization fixed part includes connection terminal parts that are respectively disposed on the first side and the second side, and are connected to power supply wiring of the image-stabilization coil part.Type: ApplicationFiled: January 15, 2018Publication date: February 6, 2020Applicant: MITSUMI ELECTRIC CO., LTD.Inventors: Yulin ZHANG, Masayoshi SUGAWARA
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Patent number: 10338273Abstract: The present invention discloses an adjustable karst water and soil loss simulation apparatus, comprising a surface runoff region, a vegetation buffer layer, a rainfall simulation apparatus, a bare rock-soil layer, a ponor, a slope adjuster, permeable layers, an underground river emergence point, a water receiving port, a glass perspective plate, a movable chassis and a waterproof base layer. The apparatus in the present invention can simulate special surface and underground dual environments in a karst environment, thereby aiding interpretation, providing simulation of a real environment under various environmental condition differences and bringing accurate water and soil loss data under similar conditions. Moreover, the apparatus has characteristics of transparent simulation, accurate numerical value, wide simulation application scope, simple structure, portability, convenient use, durability and the like.Type: GrantFiled: October 14, 2017Date of Patent: July 2, 2019Assignee: Guizhou Normal UniversityInventors: Hengsong Wang, Zhengpeng Luo, Yulin Zhang
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Patent number: 10267843Abstract: A direct current (DC) fault arc detection method, including performing sampling, filtering and fast Fourier transform (FFT) on an input current of a high frequency power electronics converter, to obtain an amplitude-frequency characteristic curve of a current high frequency component; and selecting, from the amplitude-frequency characteristic curve, at least one frequency band including a switching frequency or a multiple frequency, calculating a peak value D1 of amplitudes and an average value D2 of the amplitudes within the frequency band, and determining, according to a change of a distance between the peak value D1 and the average value D2, whether an arc occurs, where if the average value D2 approaches the peak value D1, an arc occurs; otherwise, no arc occurs.Type: GrantFiled: March 3, 2016Date of Patent: April 23, 2019Assignee: SHANGHAI CHINT POWER SYSTEMS CO., LTD.Inventors: Yulin Zhang, Rong Liu, Jun Zhang
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Publication number: 20180313887Abstract: A direct current (DC) fault arc detection method, including performing sampling, filtering and fast Fourier transform (FFT) on an input current of a high frequency power electronics converter, to obtain an amplitude-frequency characteristic curve of a current high frequency component; and selecting, from the amplitude-frequency characteristic curve, at least one frequency band including a switching frequency or a multiple frequency, calculating a peak value D1 of amplitudes and an average value D2 of the amplitudes within the frequency band, and determining, according to a change of a distance between the peak value D1 and the average value D2, whether an arc occurs, where if the average value D2 approaches the peak value D1, an arc occurs; otherwise, no arc occurs.Type: ApplicationFiled: March 3, 2016Publication date: November 1, 2018Applicant: SHANGHAI CHINT POWER SYSTEMS CO., LTD.Inventors: Yulin ZHANG, Rong LIU, Jun ZHANG
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Publication number: 20180128939Abstract: The present invention discloses an adjustable karst water and soil loss simulation apparatus, comprising a surface runoff region, a vegetation buffer layer, a rainfall simulation apparatus, a bare rock-soil layer, a ponor, a slope adjuster, permeable layers, an underground river emergence point, a water receiving port, a glass perspective plate, a movable chassis and a waterproof base layer. The apparatus in the present invention can simulate special surface and underground dual environments in a karst environment, thereby aiding interpretation, providing simulation of a real environment under various environmental condition differences and bringing accurate water and soil loss data under similar conditions. Moreover, the apparatus has characteristics of transparent simulation, accurate numerical value, wide simulation application scope, simple structure, portability, convenient use, durability and the like.Type: ApplicationFiled: October 14, 2017Publication date: May 10, 2018Inventors: Hengsong WANG, Zhengpeng LUO, Yulin ZHANG
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Patent number: 9599744Abstract: A method for calculating performance of satellite gravity field measurement by low-to-low satellite-to-satellite tracking, includes: acquiring parameters of gravity satellite system; calculating an effect of satellite loads on the power spectrum of nonspherical perturbation potential, so as to obtain an degree error variance; comparing degree error variance with degree variance given by Kaula Rule, and when degree error variance equals degree variance, considering that the highest degree of gravity field measurement is obtained, calculating geoid degree error and its accumulative error, gravity anomaly degree error and its accumulative error, so as to obtain the performance of satellite gravity field measurement by low-to-low satellite-to-satellite tracking.Type: GrantFiled: October 17, 2013Date of Patent: March 21, 2017Assignee: TSINGHUA UNIVERSITYInventors: Yulin Zhang, Zhaokui Wang, Hongwei Liu, Li Fan
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Publication number: 20160231458Abstract: A method for calculating performance of satellite gravity field measurement by low-to-low satellite-to-satellite tracking, includes: acquiring parameters of gravity satellite system; calculating an effect of satellite loads on the power spectrum of nonspherical perturbation potential, so as to obtain an degree error variance; comparing degree error variance with degree variance given by Kaula Rule, and when degree error variance equals degree variance, considering that the highest degree of gravity field measurement is obtained, calculating geoid degree error and its accumulative error, gravity anomaly degree error and its accumulative error, so as to obtain the performance of satellite gravity field measurement by low-to-low satellite-to-satellite tracking.Type: ApplicationFiled: October 17, 2013Publication date: August 11, 2016Inventors: Yulin Zhang, Zhaokui Wang, Hongwei Liu, Li Fan
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Patent number: 9071275Abstract: The present invention relates to an error control technology in the communication system and discloses a method and an apparatus for implementing Cyclic Redundancy Check (CRC) codes to improve the operation performance of the system significantly and satisfy operation requirements when processing high-rate CRC data. The method includes: performing at least one XOR operation for information bits input in parallel to obtain a first result, where at least one pipeline is added during the XOR operation; performing an XOR operation for a previously obtained CRC code to obtain a second result; and performing an XOR operation for the second result and the first result to obtain a current CRC code. The present invention is applicable to any field that needs to implement CRC codes by means of hardware.Type: GrantFiled: October 7, 2011Date of Patent: June 30, 2015Assignee: Huawei Technologies Co., Ltd.Inventor: Yulin Zhang