Patents by Inventor Songtao Chen
Songtao Chen 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).
-
Publication number: 20240092948Abstract: The present invention relates to a process for continuously producing an ultra-high molecular weight polyethylene by the ethylene slurry polymerization, wherein raw materials containing ethylene and optionally at least one comonomer are subjected to a continuous slurry polymerization in a hydrogen free atmosphere in the ethylene slurry polymerization condition by using 2-6 ethylene slurry polymerization reaction tanks connected in series, and the deviations of the polymerization temperatures, the polymerization pressures, and the gas phase compositions between the tanks each other are controlled to certain ranges. The ultra-high molecular weight polyethylene having the viscosity-average molecular weight of 150-800×104 g/mol can be continuously produced. This process has flexible polymerization manner, large room for adjusting and controlling, and stable polymer performance.Type: ApplicationFiled: January 26, 2022Publication date: March 21, 2024Inventors: Chuanfeng LI, Wenrui WANG, Kun JING, Minghua CHEN, Yuejun XING, Huimin XIA, Feng GUO, Zhonglin YOU, Shaohui CHEN, Jianhong ZHAI, Liu YANG, Songtao TU
-
Patent number: 11770011Abstract: The present invention provides a processing circuit, a method, and an electronic device for multiple power supply ports. The processing circuit includes N control modules and a bus. Each control module is correspondingly connected to a power supply port. The communication interface of each control module is connected to the bus. The bus is a one-wire bus and is connected to a power line ground through a resistor. The control modules transmit value signals to the bus. The varied range of a first physical quantity of a bus signal carried by the bus is related to first physical quantities or second physical quantities of all target signals transmitted to the bus. The control module detects the first quantity of the bus signal through the communication interface and adjusts the operating parameter of the connected power supply port according to the varied range of the detected first physical quantity.Type: GrantFiled: March 22, 2021Date of Patent: September 26, 2023Inventors: Wenjun Liu, Songtao Chen
-
Publication number: 20220407099Abstract: The present invention discloses a desulfurization unit, a solid oxide fuel cell (SOFC) system and a vehicle, the desulfurization unit comprises a container for holding a desulfurizing agent, wherein the container comprises: an inner wall and an outer wall, a water cavity is formed between the inner wall and the outer wall, a water inlet and a water outlet in communication with the water cavity are arranged on the outer wall, the top of the container is provided with a gas outlet and the bottom of the container is provided with a gas inlet; and a double threaded bush arranged at the gas outlet, wherein the double threaded bush comprises an inner bush and an outer bush that adopt threaded connection, the outer wall of the outer bush is connected to the hole wall of the gas outlet in a threaded manner, and the inner wall of the inner bush is connected to an adapter in a threaded manner.Type: ApplicationFiled: November 18, 2020Publication date: December 22, 2022Inventors: Songtao Chen, Wenmiao Chen, Chao Yu
-
Publication number: 20220328853Abstract: A method and a device for detecting internal carbon deposition of a solid oxide fuel cell system. The method comprises the following steps: adjusting a temperature in a reformer of the solid oxide fuel cell system so that a mixed gas discharged from the reformer is at a detection temperature; sampling the mixed gas; detecting a gas sample to obtain a mole fraction of each gas, and calculating an equilibrium constant K1 of a Boudouard reaction according to the obtained mole fraction; calculating an equilibrium constant K2 of the Boudouard reaction according to thermodynamics; comparing K1 and K2, if K1 is less than K2, determining that there will be no carbon deposition in the solid oxide fuel cell system; and if K1 is greater than K2, determining that there will be carbon deposition in the solid oxide fuel cell system.Type: ApplicationFiled: October 20, 2020Publication date: October 13, 2022Inventors: Songtao Chen, Wenmiao Chen, Chao Yu
-
Publication number: 20220302720Abstract: The present invention provides a processing circuit, a method, and an electronic device for multiple power supply ports. The processing circuit includes N control modules and a bus. Each control module is correspondingly connected to a power supply port. The communication interface of each control module is connected to the bus. The bus is a one-wire bus and is connected to a power line ground through a resistor. The control modules transmit value signals to the bus. The varied range of a first physical quantity of a bus signal carried by the bus is related to first physical quantities or second physical quantities of all target signals transmitted to the bus. The control module detects the first quantity of the bus signal through the communication interface and adjusts the operating parameter of the connected power supply port according to the varied range of the detected first physical quantity.Type: ApplicationFiled: March 22, 2021Publication date: September 22, 2022Inventors: Wenjun LIU, Songtao CHEN
-
Patent number: 10053816Abstract: A method for continuously cooking grass raw materials, includes: (1) preparing grass raw materials by conventional dry or wet method to obtain a chopped grass; (2a) conveying the chopped grass into a T-shaped tube, adding a cooking liquor from a top of the tube and mixing with the chopped grass tube to obtain a forage; (2b) adding steam to the forage being in the horizontal tube, the forage being heated and going into a spherical mixer; (2c) adding a cooking liquor extruded by a dehydration spiral into the spherical mixer, mixing uniformly with the forage in the spherical mixer; (3) conveying the forage after the pre-cooking process to a digester, heating the cooking liquor by a heater arranged outside the digester, and sending the cooking liquor back to the digester for cooking the forage to obtain a pulp of the grass raw materials.Type: GrantFiled: February 28, 2017Date of Patent: August 21, 2018Assignee: SHANDONG TRALIN PAPER CO., LTD.Inventors: Hongfa Li, Mingxin Song, Songtao Chen, Qingtao Wang, Jixing Chu, Yingwen Dong
-
Patent number: 9953203Abstract: The present disclosure, related to the technical field of fingerprint identification, discloses a ramp wave generation circuit, a digital-to-analog conversion circuit, and a fingerprint identification system. The ramp wave generation circuit comprises: an integrating circuit, configured to output a ramp wave signal; a signal regulation circuit, comprising a feedback control loop and a transconductance amplifier connected in series, wherein the feedback control loop monitors the ramp wave signal output by the integrating circuit, and outputs a regulation control signal to the transconductance amplifier, the transconductance amplifier corrects, according to the regulation control signal, a ramp wave signal output by the integrating circuit within a next period; and a voltage generation circuit, configured to respectively output a reference voltage signal to the integrating circuit and the signal regulation circuit.Type: GrantFiled: August 26, 2016Date of Patent: April 24, 2018Assignee: SHENZHEN GOODIX TECHNOLOGY CO., LTD.Inventor: Songtao Chen
-
Publication number: 20170268168Abstract: A method for continuously cooking grass raw materials, includes: (1) preparing grass raw materials by conventional dry or wet method to obtain a chopped grass; (2a) conveying the chopped grass into a T-shaped tube, adding a cooking liquor from a top of the tube and mixing with the chopped grass tube to obtain a forage; (2b) adding steam to the forage being in the horizontal tube, the forage being heated and going into a spherical mixer; (2c) adding a cooking liquor extruded by a dehydration spiral into the spherical mixer, mixing uniformly with the forage in the spherical mixer; (3) conveying the forage after the pre-cooking process to a digester, heating the cooking liquor by a heater arranged outside the digester, and sending the cooking liquor back to the digester for cooking the forage to obtain a pulp of the grass raw materials.Type: ApplicationFiled: February 28, 2017Publication date: September 21, 2017Applicant: Shandong Tralin Paper Co., Ltd.Inventors: Hongfa Li, Mingxin Song, Songtao Chen, Qingtao Wang, Jixing Chu, Yingwen Dong
-
Publication number: 20160364598Abstract: The present disclosure, related to the technical field of fingerprint identification, discloses a ramp wave generation circuit, a digital-to-analog conversion circuit, and a fingerprint identification system. The ramp wave generation circuit comprises: an integrating circuit, configured to output a ramp wave signal; a signal regulation circuit, comprising a feedback control loop and a transconductance amplifier connected in series, wherein the feedback control loop monitors the ramp wave signal output by the integrating circuit, and outputs a regulation control signal to the transconductance amplifier, the transconductance amplifier corrects, according to the regulation control signal, a ramp wave signal output by the integrating circuit within a next period; and a voltage generation circuit, configured to respectively output a reference voltage signal to the integrating circuit and the signal regulation circuit.Type: ApplicationFiled: August 26, 2016Publication date: December 15, 2016Inventor: Songtao Chen
-
Publication number: 20160364597Abstract: The present disclosure discloses a fingerprint identification apparatus and method. The fingerprint identification apparatus comprises a fingerprint acquisition module, an analog-to-digital conversion module and a control module that are sequentially connected, wherein the analog-to-digital conversion module comprises a quantified voltage generator for generating a quantified voltage, the fingerprint acquisition module is configured to acquire fingerprint information, and the analog-to-digital conversion module is configured to perform an analog-to-digital conversion for the fingerprint information and output quantified fingerprint information data; wherein the control module is configured to control the quantified voltage generator to adjust an output range of the quantified voltage according to a distribution range of the fingerprint information data to enlarge a distribution range of the quantified fingerprint information data.Type: ApplicationFiled: August 26, 2016Publication date: December 15, 2016Inventor: Songtao Chen
-
Patent number: 9280995Abstract: Described embodiments provide a magnetic mass storage device with a system clock phase-locked to servo address marks on the magnetic disk. A head sequentially reads multiple adjacent servo address marks in a spiral track of servo address marks. When a servo address mark detector detects a mark, the count value of a counter driven by the system clock is sampled and held by a latch. A system clock synthesizer calculates differences in value between successively sampled count values from the latch, averages the differences in value to create an average difference value, and normalizes a difference between the average difference value and a target value to create a phase error value. The phase of the system clock is updated using the phase error value.Type: GrantFiled: April 3, 2014Date of Patent: March 8, 2016Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.Inventors: Xiangdong Fan, Songtao Chen
-
Publication number: 20150279398Abstract: Described embodiments provide a magnetic mass storage device with a system clock phase-locked to servo address marks on the magnetic disk. A head sequentially reads multiple adjacent servo address marks in a spiral track of servo address marks. When a servo address mark detector detects a mark, the count value of a counter driven by the system clock is sampled and held by a latch. A system clock synthesizer calculates differences in value between successively sampled count values from the latch, averages the differences in value to create an average difference value, and normalizes a difference between the average difference value and a target value to create a phase error value. The phase of the system clock is updated using the phase error value.Type: ApplicationFiled: April 3, 2014Publication date: October 1, 2015Applicant: LSI CorporationInventors: Xiangdong Fan, Songtao Chen
-
Patent number: 8957625Abstract: A method for balancing multiple battery cells which are grouped into multiple battery modules includes: obtaining cell parameters of the battery cells, respectively; calculating an average cell parameter for each of the battery modules according to the cell parameters; identifying a donator module and a receiver module from the battery modules based upon the average cell parameter; and transferring energy from the donator module to the receiver module to balance the battery cells.Type: GrantFiled: December 13, 2012Date of Patent: February 17, 2015Assignee: O2Micro, Inc.Inventors: Guoxing Li, Wei Zhang, Songtao Chen, Chutao Zhang
-
Patent number: 8778135Abstract: A circular utilization method in pulping and papermaking processes with straw Primary pulp is obtained by digesting straw raw material according to the ammonium sulfite method. Concentrated black liquor is extruded from the primary pulp; paper pulp and diluted black liquor. The concentrated black liquor and the diluted black liquor are mixed, and a contaminated condensate is obtained. A residual concentrate or the concentrated black liquor is used for preparing a fertilizer. The contaminated condensate is mixed with one or more of the waste material obtained from stock preparation, a crop byproduct or organic waste, and substrate or fertilizer is obtained by fermenting the nitrogen source of the contaminated condensate or ammonium sulfite, or using the contaminated condensate for desulfurizing flue gas. Ammonia and flue gas are reacted to obtain the ammonium sulfite as a digestion agent; and water from recycling is used in corresponding phases of the pulping process.Type: GrantFiled: March 11, 2011Date of Patent: July 15, 2014Assignee: Shandong Tralin Paper Co., Ltd.Inventors: Hongfa Li, Mingxin Song, Songtao Chen, Jihui Yang, Liangjin Guo
-
Patent number: 8519676Abstract: A circuit for charging a battery pack includes a transformer and a charger controller. The transformer is operable for receiving an input power and for providing a charging power according to a driving signal to charge the battery pack. The charger controller is operable for monitoring a status of the battery pack, for selecting a charging mode from multiple charging modes according to the status, and for generating the driving signal according to the charging mode to adjust the charging power. The charger controller further executes a state machine that stores data indicating predetermined battery statuses that cause saturation of the transformer, and that selects a protection mode in which said charging power is restricted if the status of the battery pack matches to one of the predetermined battery statuses.Type: GrantFiled: March 6, 2012Date of Patent: August 27, 2013Assignee: O2Micro Inc.Inventors: Guo Xing Li, Jiankui Guo, Xin Dong, Ruichao Tang, Chutao Zheng, Celin He, Songtao Chen
-
Patent number: 8344694Abstract: A battery circuit including a first battery cell with a first parameter having a first value and a second battery cell with a second parameter having a second value. The second battery cell is coupled to the first battery cell in series. The battery circuit further includes a magnetic device operable for storing energy transferred from the first battery cell via a first winding coupled to the first battery cell and for releasing the stored energy to the second battery cell via a second winding coupled to the second battery cell if the first value of the first parameter is greater than the second value of the second parameter.Type: GrantFiled: April 12, 2012Date of Patent: January 1, 2013Assignee: O2Micro International, Ltd.Inventors: Chutao Zhang, Songtao Chen
-
Publication number: 20120325421Abstract: A circular utilization method in pulping and papermaking processes with straw Primary pulp is obtained by digesting straw raw material according to the ammonium sulfite method. Concentrated black liquor is extruded from the primary pulp; paper pulp and diluted black liquor. The concentrated black liquor and the diluted black liquor are mixed, and a contaminated condensate is obtained. A residual concentrate or the concentrated black liquor is used for preparing a fertilizer. The contaminated condensate is mixed with one or more of the waste material obtained from stock preparation, a crop byproduct or organic waste, and substrate or fertilizer is obtained by fermenting the nitrogen source of the contaminated condensate or ammonium sulfite, or using the contaminated condensate for desulfurizing flue gas. Ammonia and flue gas are reacted to obtain the ammonium sulfite as a digestion agent; and water from recycling is used in corresponding phases of the pulping process.Type: ApplicationFiled: March 11, 2011Publication date: December 27, 2012Applicant: SHANDONG TRALIN PAPER CO., LTD.Inventors: Hongfa Li, Mingxin Song, Songtao Chen, Jihui Yang, Liangjin Guo
-
Patent number: 8339100Abstract: A method for balancing multiple battery cells which are grouped into multiple battery modules includes: obtaining cell parameters of the battery cells, respectively; calculating an average cell parameter for each of the battery modules according to the cell parameters; identifying a donator module and a receiver module from the battery modules based upon the average cell parameter; and transferring energy from the donator module to the receiver module to balance the battery cells.Type: GrantFiled: May 4, 2011Date of Patent: December 25, 2012Assignee: O2Micro IncInventors: Guoxing Li, Wei Zhang, Songtao Chen, Chutao Zhang
-
Publication number: 20120196159Abstract: A battery circuit including a first battery cell with a first parameter having a first value and a second battery cell with a second parameter having a second value. The second battery cell is coupled to the first battery cell in series. The battery circuit further includes a magnetic device operable for storing energy transferred from the first battery cell via a first winding coupled to the first battery cell and for releasing the stored energy to the second battery cell via a second winding coupled to the second battery cell if the first value of the first parameter is greater than the second value of the second parameter.Type: ApplicationFiled: April 12, 2012Publication date: August 2, 2012Applicant: O2MICRO INC.Inventors: Chutao Zhang, Songtao Chen
-
Publication number: 20120161717Abstract: A circuit for charging a battery pack includes a transformer and a charger controller. The transformer is operable for receiving an input power and for providing a charging power according to a driving signal to charge the battery pack. The charger controller is operable for monitoring a status of the battery pack, for selecting a charging mode from multiple charging modes according to the status, and for generating the driving signal according to the charging mode to adjust the charging power. The charger controller further executes a state machine that stores data indicating predetermined battery statuses that cause saturation of the transformer, and that selects a protection mode in which said charging power is restricted if the status of the battery pack matches to one of the predetermined battery statuses.Type: ApplicationFiled: March 6, 2012Publication date: June 28, 2012Inventors: Guo Xing LI, Jiankui GUO, Xin DONG, Songtao CHEN, Ruichao TANG, Chutao ZHANG, Celin HE