Patents by Inventor Rui Tu
Rui Tu 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: 20210348093Abstract: A system for simultaneously preparing alcohol-free wine and high-alcohol liquor, comprising a primary membrane separation system and a secondary membrane separation system. An inlet of the primary membrane separation system is connected to raw materials, and a permeation side of the primary membrane separation system is connected to an inlet of the secondary membrane separation system; both the primary membrane separation system and the secondary membrane separation system comprise an organic matter preferentially-permeable pervaporation membrane. The method for simultaneously preparing the alcohol-free wine and the high-alcohol liquor comprise the following steps: feeding the wine produced by fermentation into the primary membrane separation system, ethanol and aromatic substances therein permeating the membrane in a vapor form to form a primary permeating fluid with alcohol content of 28-32°, and a primary residual permeating fluid being the alcohol-free wine with alcohol content of less than 0.5°.Type: ApplicationFiled: April 17, 2019Publication date: November 11, 2021Applicant: JIANGSU JIUMO HIGH-TECH CO., LTD.Inventors: Xiaobin DING, Xiangqiang ZHAO, Xuefei SUN, Pingping DAI, Rui TU
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Patent number: 10605605Abstract: The present invention discloses a GNSS-INS vehicle attitude determination method based on a single antenna, including the steps as below: mounting a GNSS antenna at a centroid and in the center of the vehicle, and mounting the IMU measuring unit of the MEMS sensor on the steering shaft of the vehicle; obtaining the position and velocity information of the vehicle by means of the GNSS antenna, obtaining the heading angular speed information of the vehicle by means of the IMU measuring unit; calculating the attitude angle of the vehicle by means of the combination with accelerometer and gyroscope; calculating the heading angle of the vehicle based on the position, velocity, and heading angular speed of the vehicle. The method combines the advantages of the short-term high precision of the IMU gyroscope and the long-term high stability of the GNSS single antenna, so as to avoid the divergence phenomenon.Type: GrantFiled: July 4, 2016Date of Patent: March 31, 2020Assignee: SHANGHAI HUACE NAVIGATION TECHNOLOGY LTD.Inventors: Xuefeng Shen, Xianghui Che, Qiang Ren, Guangjie Cao, Guangyang Dong, Rui Tu
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Patent number: 10605619Abstract: A precision calibration method of attitude measuring systems is provided. The precision calibration method of attitude measuring systems includes the following steps: calibrating a zero-deviation, a scale coefficient, and a non-orthogonal angle between axes of an accelerometer to the attitude measuring system via an ellipsoid fitting model (S1); compensating original data of the accelerometer using a calculated ellipsoid parameter (S2); calibrating an electronic compass via the ellipsoid fitting model according to compensated accelerometer data (S3); compensating original electronic compass data by the calculated ellipsoid parameter (S4); calculating an attitude according to the compensated data of the accelerometer and compensated data of the electronic compass (S5). The above steps of the method have a reliable calibration result and a high precision with a less time consumption of calibration.Type: GrantFiled: July 4, 2016Date of Patent: March 31, 2020Assignee: SHANGHAI HUACE NAVIGATION TECHNOLOGY LTDInventors: Rui Tu, Xuefeng Shen, Wenlong Zhao, Wending Dai, Qiang Yue
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Publication number: 20180017390Abstract: The present invention discloses a GNSS-INS vehicle attitude determination method based on a single antenna, including the steps as below: mounting a GNSS antenna at a centroid and in the center of the vehicle, and mounting the IMU measuring unit of the MEMS sensor on the steering shaft of the vehicle; obtaining the position and velocity information of the vehicle by means of the GNSS antenna, obtaining the heading angular speed information of the vehicle by means of the IMU measuring unit; calculating the attitude angle of the vehicle by means of the combination with accelerometer and gyroscope; calculating the heading angle of the vehicle based on the position, velocity, and heading angular speed of the vehicle. The method combines the advantages of the short-term high precision of the IMU gyroscope and the long-term high stability of the GNSS single antenna, so as to avoid the divergence phenomenon.Type: ApplicationFiled: July 4, 2016Publication date: January 18, 2018Applicant: SHANGHAI HUACE NAVIGATION TECHNOLOGY LTDInventors: Xuefeng SHEN, Xianghui CHE, Qiang REN, Guangjie CAO, Guangyang DONG, Rui TU
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Publication number: 20180010923Abstract: A precision calibration method of attitude measuring systems is provided. The precision calibration method of attitude measuring systems includes the following steps: calibrating a zero-deviation, a scale coefficient, and a non-orthogonal angle between axes of an accelerometer to the attitude measuring system via an ellipsoid fitting model (S1); compensating original data of the accelerometer using a calculated ellipsoid parameter (S2); calibrating an electronic compass via the ellipsoid fitting model according to compensated accelerometer data (S3); compensating original electronic compass data by the calculated ellipsoid parameter (S4); calculating an attitude according to the compensated data of the accelerometer and compensated data of the electronic compass (S5). The above steps of the method have a reliable calibration result and a high precision with a less time consumption of calibration.Type: ApplicationFiled: July 4, 2016Publication date: January 11, 2018Applicant: SHANGHAI HUACE NAVIGATION TECHNOLOGY LTDInventors: Rui TU, Xuefeng SHEN, Wenlong ZHAO, Wending DAI, Qiang YUE
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Publication number: 20170350721Abstract: A method of updating an all-attitude angle of an agricultural machine based on a nine-axis MEMS sensor includes the following steps: establishing an error model of a gyroscope, an electronic compass calibration ellipse model and a seven-dimensional EKF filtering model, and setting a parameter vector corresponding to a vehicle motional attitude (S1); acquiring data including an acceleration and an angular velocity of a motion of vehicle, and an geomagnetic field intensity in real time (S2); calculating an angle, a velocity, position information, and a course angle of the vehicle by established error model of the gyroscope and the electronic compass calibration ellipse model(S3); data-fusion processing the angle, the velocity, the position information and the course angle of the vehicle by the seven-dimensional EKF filtering model, and updating a motional attitude angle of the vehicle in real time. The steps of the method have a small error, high precision, and reliability.Type: ApplicationFiled: July 4, 2016Publication date: December 7, 2017Applicant: SHANGHAI HUACE NAVIGATION TECHNOLOGY LTDInventors: Qiang REN, Jiejun WANG, Wending DAI, Guangjie CAO, Guangyang DONG, Rui TU
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Patent number: 9660633Abstract: A circuit and method for power gating is provided. The circuit includes a switch circuit and a modulation oscillator. The switch circuit is connected between a circuit module and a power network having a target level. The switch circuit receives a control signal at its control signal input terminal to gate a connection between the circuit module and the power network under the control of the control signal. The switch circuit is connected to the circuit module at a first node. A modulation oscillator enabling signal input terminal is connected to a gating signal for enabling the modulation oscillator, a modulation oscillator control signal input terminal is connected to the first node, and an modulation oscillator output terminal is connected to the control signal input terminal of the switch circuit. The oscillation signal outputted from the modulation oscillator is modulated by the level of the first node.Type: GrantFiled: July 8, 2015Date of Patent: May 23, 2017Assignee: International Business Machines CorporationInventors: Hai Cao, Si Shi, Rui Tu, Bo Qu
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Publication number: 20160036429Abstract: A circuit and method for power gating is provided. The circuit includes a switch circuit and a modulation oscillator. The switch circuit is connected between a circuit module and a power network having a target level. The switch circuit receives a control signal at its control signal input terminal to gate a connection between the circuit module and the power network under the control of the control signal. The switch circuit is connected to the circuit module at a first node. A modulation oscillator enabling signal input terminal is connected to a gating signal for enabling the modulation oscillator, a modulation oscillator control signal input terminal is connected to the first node, and an modulation oscillator output terminal is connected to the control signal input terminal of the switch circuit. The oscillation signal outputted from the modulation oscillator is modulated by the level of the first node.Type: ApplicationFiled: July 8, 2015Publication date: February 4, 2016Inventors: Hai Cao, Si Shi, Rui Tu, Bo Qu
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Patent number: 8797789Abstract: Embodiments of the invention provide a sense amplifier, a SRAM chip comprising the sense amplifier and a method for conducting read operation on a SRAM cell. The sense amplifier according to an embodiment of the invention comprises a cross coupling circuit, a tail current transistor and an output stage, wherein source of the tail current transistor is connected to a negative level. With the scheme according to embodiments of the invention, speed of the sense amplifier can be enhanced, thereby increasing read speed of the SRAM chip.Type: GrantFiled: July 18, 2012Date of Patent: August 5, 2014Assignee: International Business Machines CorporationInventors: Cui Li Chen, Xiao Li Hu, Qing Q L Li, Rui Tu
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Publication number: 20130028007Abstract: Embodiments of the invention provide a sense amplifier, a SRAM chip comprising the sense amplifier and a method for conducting read operation on a SRAM cell. The sense amplifier according to an embodiment of the invention comprises a cross coupling circuit, a tail current transistor and an output stage, wherein source of the tail current transistor is connected to a negative level. With the scheme according to embodiments of the invention, speed of the sense amplifier can be enhanced, thereby increasing read speed of the SRAM chip.Type: ApplicationFiled: July 18, 2012Publication date: January 31, 2013Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Cui Li Chen, Xiao Li Hu, Qing QL LI, Rui Tu