Patents by Inventor Zhan Gao
Zhan Gao 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: 11188700Abstract: The present application relates to a resistance simulation method for a power device, comprising: establishing an equivalent resistance model of a power device, wherein the connection relationship of N fingers is equivalent to N resistors Rb connected in parallel, input ends of adjacent resistors Rb are connected by means of a resistor Ra, output ends of adjacent resistors Rb are connected by means of a resistor Rc, R a = 1 N ? R 0 , R c = 1 N ? R 1 , and Rb=RDEV*N+RS+RD, wherein R0 and R1 are respectively resistances of a source metal strip and a drain metal strip, Rs is a metal resistor of a first intermediate layer connecting one source region to the source metal strip, RD is a metal resistor of a second intermediate layer connecting one drain region to the drain metal strip, and RDEV is the channel resistance of the power device; and calculating the resistance of the equivalent resistance model as the resistance of the power device.Type: GrantFiled: August 15, 2019Date of Patent: November 30, 2021Assignee: CSMC TECHNOLOGIES FAB2 CO., LTD.Inventors: Nan Zhang, Jing Zhou, Hao Wang, Zhan Gao, Maoqian Zhu, Cheng Zhou, Zhijin Li, Lin Wu, Shuming Guo, Yong Huang
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Publication number: 20210343973Abstract: The present disclosure provides a display substrate, including: a base substrate, which includes a display region and a driving region arranged on at least one side of the display region; a first electrode layer disposed in the display region; a signal output part disposed in the driving region, the first electrode layer is electrically coupled to the signal output part, the first electrode layer comprises a plurality of electrode regions each having a same area; and a plurality of auxiliary electrodes, which are in one-to-one correspondence with the plurality of electrode regions and configured to be coupled in parallel with the first electrode layer, a resistance of each auxiliary electrode is inversely correlated with a minimum distance from the electrode region corresponding to said each auxiliary electrode to the signal output part. The present disclosure further provides a display panel and a manufacturing method thereof and a display device.Type: ApplicationFiled: June 2, 2020Publication date: November 4, 2021Inventors: Xing ZHANG, Wei QUAN, Yicheng LIN, Pan XU, Ling WANG, Guoying WANG, Ying HAN, Zhan GAO
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Publication number: 20210264858Abstract: Disclosed are a pixel compensation circuit, a display apparatus, and a pixel compensation circuit driving method. The pixel compensation circuit comprises: an integration circuit, a comparison circuit, a timing circuit, and a processor, wherein the integration circuit is configured to integrate driving currents of a pixel circuit, and then output a first voltage; the comparison circuit is configured to receive the first voltage, compare the first voltage with a first reference voltage, and then output a first logic control signal; the timing circuit is configured to acquire a first working duration; and the processor is configured to acquire the first working duration, obtain, according to correlations between the pre-obtained working duration and the pixel driving currents, a target driving current, corresponding to the first working duration, of the pixel circuit, and obtain a compensation parameter according to the target driving current.Type: ApplicationFiled: May 26, 2020Publication date: August 26, 2021Inventors: Tangxiang WANG, Yi CHEN, Zhan GAO
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Publication number: 20210240898Abstract: The present application relates to a resistance simulation method for a power device, comprising: establishing an equivalent resistance model of a power device, wherein the connection relationship of N fingers is equivalent to N resistors Rb connected in parallel, input ends of adjacent resistors Rb are connected by means of a resistor Ra, output ends of adjacent resistors Rb are connected by means of a resistor Rc, R a = 1 N ? R 0 , R c = 1 N ? R 1 , and Rb=RDEV*N+RS+RD, wherein R0 and R1 are respectively resistances of a source metal strip and a drain metal strip, Rs is a metal resistor of a first intermediate layer connecting one source region to the source metal strip, RD is a metal resistor of a second intermediate layer connecting one drain region to the drain metal strip, and RDEV is the channel resistance of the power device; and calculating the resistance of the equivalent resistance model as the resistance of the power device.Type: ApplicationFiled: August 15, 2019Publication date: August 5, 2021Inventors: Nan ZHANG, Jing ZHOU, Hao WANG, Zhan GAO, Maoqian ZHU, Cheng ZHOU, Zhijin LI, Lin WU, Shuming GUO, Yong HUANG
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Patent number: 11025266Abstract: Embodiments of the present disclosure provide a digital-to-analog converter, a conversion circuit and a display device. An M-bit digital-to-analog converter includes a higher M?N-bit digital-to-analog conversion circuit, a voltage conversion circuit, an output circuit. The higher M?N-bit digital-to-analog conversion circuit includes: a higher M?N-bit voltage division generation circuit, a first voltage selection circuit. The first voltage selection circuit selects a first voltage from the higher M?N-bit voltage division generation circuit based on a higher M?N-bit digital signal, to be output from a first voltage end. The voltage conversion circuit charges a capacitor circuit under the control of a first switch circuit and a second switch circuit, and discharges a second voltage to a second voltage end through the capacitor circuit.Type: GrantFiled: March 18, 2019Date of Patent: June 1, 2021Assignee: BOE Technology Group Co., Ltd.Inventors: Tangxiang Wang, Chen Song, Zhan Gao, Yi Chen
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Publication number: 20210063137Abstract: A method for full-field measurement using Doppler imaging, comprising the following steps: turning on a laser and adjusting the laser; adjusting a spatial filter to obtain circular laser spots having uniform intensity distribution; adjusting a quarter-wave plate and a whole polarizer in a system, and requiring two beams in a reference object and a measured object having different frequencies and perpendicular polarization directions; applying slight pressure to the measured object, setting a charge coupled device (CCD) camera into a continuous acquisition mode, observing interference fringes, and adjusting a light path so that the fringes are clear and visible; setting the sampling frequency, sampling time, captured image format and resolution size of the CCD camera; turning on a lithium niobate crystal drive power switch to produce a heterodyne carrier frequency; applying continuous equal pushing force to the measured object by means of piezoelectric ceramics (PZT) so as to make the measured object produce cType: ApplicationFiled: November 13, 2020Publication date: March 4, 2021Inventors: Zhan Gao, Jie Qin, Qibo Feng, Shengjia Wang, Xu Wang, Shanwei Yang, Chenjia Gao
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Patent number: 10928136Abstract: The present invention discloses a scrap steel preheating type electric arc furnace and a method for improving a heating cold region of a side wall charging electric arc furnace. This invention includes an electric arc furnace body and an inclined scrap steel preheating chamber. An included angle between the inclined scrap steel preheating chamber and a horizontal plane is 30° to 65°. Flue gas enters the inclined scrap steel preheating chamber, penetrates through the material blocking tooth rake and the scrap steel and is sucked out. The preheated scrap steel slides to a center of the electric arc furnace body along a slot bottom of the inclined scrap steel preheating chamber. The present invention overcomes a problem of lateral stacking of the side wall charging electric arc furnace, reducing impact force of the scrap steel to the device and greatly enhancing reliability of the device.Type: GrantFiled: March 5, 2018Date of Patent: February 23, 2021Assignee: CISDI ENGINEERING CO., LTDInventors: Qiming Huang, Zhan Gao, Weizhi Shi, Cunzhen Tan
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Patent number: 10916164Abstract: The present disclosure discloses a sampling method, a sampling control method, a sampling device, a sampling control device, a sampling control system, and a display device. The present disclosure provides a sampling method for sampling pixel units disposed on a display substrate, the method including: the controller controlling a plurality of sampling modules to be simultaneously turned on, so that a plurality of sampling modules controlled by the controller are capable of receiving luminance information of the pixel units obtained through sampling of the sampling channel; the controller sequentially controlling a group of sampling channels to be simultaneously turned on, so that the group of sampling channels simultaneously sample the luminance information, and transmit the sampled luminance information to respective sampling modules connected to the group of sampling channels through the output terminals of the group of sampling channels.Type: GrantFiled: August 28, 2018Date of Patent: February 9, 2021Assignee: BOE TECHNOLOGY GROUP CO., LTD.Inventors: Chen Song, Tangxiang Wang, Zhan Gao, Song Meng, Dongfang Yang
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Publication number: 20210013899Abstract: Embodiments of the present disclosure provide a digital-to-analog converter, a conversion circuit and a display device. An M-bit digital-to-analog converter includes a higher M?N-bit digital-to-analog conversion circuit, a voltage conversion circuit, an output circuit. The higher M?N-bit digital-to-analog conversion circuit includes: a higher M?N-bit voltage division generation circuit, a first voltage selection circuit. The first voltage selection circuit selects a first voltage from the higher M?N-bit voltage division generation circuit based on a higher M?N-bit digital signal, to be output from a first voltage end. The voltage conversion circuit charges a capacitor circuit under the control of a first switch circuit and a second switch circuit, and discharges a second voltage to a second voltage end through the capacitor circuit.Type: ApplicationFiled: March 18, 2019Publication date: January 14, 2021Inventors: Tangxiang WANG, Chen SONG, Zhan GAO, Yi CHEN
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Patent number: 10883817Abstract: A method for full-field measurement using Doppler imaging, comprising the following steps: turning on a laser and adjusting the laser; adjusting a spatial filter to obtain circular laser spots having uniform intensity distribution; adjusting a quarter-wave plate and a whole polarizer in a system, and requiring two beams in a reference object and a measured object having different frequencies and perpendicular polarization directions; applying slight pressure to the measured object, setting a charge coupled device (CCD) camera into a continuous acquisition mode, observing interference fringes, and adjusting a light path so that the fringes are clear and visible; setting the sampling frequency, sampling time, captured image format and resolution size of the CCD camera; turning on a lithium niobate crystal drive power switch to produce a heterodyne carrier frequency; applying continuous equal pushing force to the measured object by means of piezoelectric ceramics (PZT) so as to make the measured object produce cType: GrantFiled: October 19, 2016Date of Patent: January 5, 2021Assignee: Beijing Jiaotong UniversityInventors: Zhan Gao, Jie Qin, Qibo Feng, Shengjia Wang, Xu Wang, Shanwei Yang, Chenjia Gao
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Patent number: 10858179Abstract: A tipping hopper includes a hopper body, hopper rotating supports and a tipping mechanism. The tipping mechanism comprises a connecting rod and a crank. One end of the connecting rod is hinged on the hopper body, and the other end is hinged with one end of the crank; and the other end of the crank is hinged on a crank rotating support through a crank rotating shaft. By optimizing a crank starting point and a crank end point, ensure hopper's position of receiving and discharging material is arranged at or near a dead point of the tipping mechanism so that the working condition of an impact force borne by a speed reducer device is optimized when the tipping hopper is charged and discharged.Type: GrantFiled: December 21, 2017Date of Patent: December 8, 2020Assignee: CISDI ENGINEERING CO., LTD.Inventors: Qiming Huang, Zhan Gao, Weizhi Shi, Cunzhen Tan, Yongmen Wang
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Patent number: 10797721Abstract: A digital to analog converter, a method for driving the same, and a display device are provided. The digital to analog converter includes: a first resistor string, 2m first multiplexers, a first voltage selector, a second resistor string, a second voltage selector, and a second multiplexer, where the 2m first multiplexers, the first voltage selector, and the second voltage selector operate in cooperation with each other so that the entire second resistor string can be connected in series to the first resistor string for further division.Type: GrantFiled: July 24, 2019Date of Patent: October 6, 2020Assignee: BOE Technology Group Co., Ltd.Inventors: Tangxiang Wang, Chen Song, Zhan Gao
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Publication number: 20200265760Abstract: The present disclosure discloses a sampling method, a sampling control method, a sampling device, a sampling control device, a sampling control system, and a display device. The present disclosure provides a sampling method for sampling pixel units disposed on a display substrate, the method including: the controller controlling a plurality of sampling modules to be simultaneously turned on, so that a plurality of sampling modules controlled by the controller are capable of receiving luminance information of the pixel units obtained through sampling of the sampling channel; the controller sequentially controlling a group of sampling channels to be simultaneously turned on, so that the group of sampling channels simultaneously sample the luminance information, and transmit the sampled luminance information to respective sampling modules connected to the group of sampling channels through the output terminals of the group of sampling channels.Type: ApplicationFiled: August 28, 2018Publication date: August 20, 2020Inventors: Chen SONG, Tangxiang WANG, Zhan GAO, Song MENG, Dongfang YANG
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Publication number: 20200224972Abstract: The present invention belongs to the technical field of metallurgy, and discloses a horizontal continuous feeding preheating device and an enhanced preheating method therefor.Type: ApplicationFiled: August 28, 2018Publication date: July 16, 2020Applicants: CISDI ENGINEERING CO., LTD, CISDI RESEARCH AND DEVELOPMENT CO., LTD.Inventors: Qiming Huang, Cunzhen Tan, Weizhi Shi, Yuchuan Zhang, Zhan Gao, Lei AL, Chunting Liu, Wei Lin, Chao Liu
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Publication number: 20200182603Abstract: A method for full-field measurement using Doppler imaging, comprising the following steps: turning on a laser and adjusting the laser; adjusting a spatial filter to obtain circular laser spots having uniform intensity distribution; adjusting a quarter-wave plate and a whole polarizer in a system, and requiring two beams in a reference object and a measured object having different frequencies and perpendicular polarization directions; applying slight pressure to the measured object, setting a charge coupled device (CCD) camera into a continuous acquisition mode, observing interference fringes, and adjusting a light path so that the fringes are clear and visible; setting the sampling frequency, sampling time, captured image format and resolution size of the CCD camera; turning on a lithium niobate crystal drive power switch to produce a heterodyne carrier frequency; applying continuous equal pushing force to the measured object by means of piezoelectric ceramics (PZT) so as to make the measured object produce cType: ApplicationFiled: October 19, 2016Publication date: June 11, 2020Inventors: Zhan GAO, Jie Qin, Qibo Feng, Shengjia Wang, Xu Wang, Shanwe Yang, Chenjia Gao
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Publication number: 20200091928Abstract: A digital to analog converter, a method for driving the same, and a display device are provided. The digital to analog converter includes: a first resistor string, 2m first multiplexers, a first voltage selector, a second resistor string, a second voltage selector, and a second multiplexer, where the 2m first multiplexers, the first voltage selector, and the second voltage selector operate in cooperation with each other so that the entire second resistor string can be connected in series to the first resistor string for further division.Type: ApplicationFiled: July 24, 2019Publication date: March 19, 2020Inventors: Tangxiang WANG, Chen SONG, Zhan GAO
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Publication number: 20200041206Abstract: A sealed feeder device utilized in an electric arc furnace (1), and a flue gas and temperature control method. The sealed feeder device comprises a sealed feeding chute (5) having an outlet sealedly communicating with a side wall of the electric arc furnace (1), and a material blocking sealed arc-shaped door (3) disposed in the sealed feeding chute (5). The material blocking sealed arc-shaped door (3) separates the sealed feeding chute (5) into a cold steel scrap storage chamber (18) and a material feeding and dedusting chamber (2), and is operated by a driving mechanism (34) to separate or connect the cold steel scrap storage chamber (18) and the material feeding and dedusting chamber (2).Type: ApplicationFiled: April 14, 2017Publication date: February 6, 2020Applicant: Cisdi Engineering Co., Ltd.Inventors: Qiming Huang, Cunzhen Tan, Zhan Gao, Weizhi Shi, Yuchuan Zhang
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Patent number: 10236528Abstract: Solid oxide electrochemical devices, methods for making the electrochemical devices, and methods of using the electrochemical devices are provided. The electrochemical devices comprise a plurality of stacked functional layers that are formed by a combination of three-dimensional (3D) extrusion printing and two-dimensional (2D) casting techniques.Type: GrantFiled: July 18, 2016Date of Patent: March 19, 2019Assignee: Northwestern UniversityInventors: Adam E. Jakus, Ramille N. Shah, Nicholas R. Geisendorfer, Scott A. Barnett, Zhan Gao
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Publication number: 20180297777Abstract: A tipping hopper includes a hopper body, hopper rotating supports and a tipping mechanism. The tipping mechanism comprises a connecting rod and a crank. One end of the connecting rod is hinged on the hopper body, and the other end is hinged with one end of the crank; and the other end of the crank is hinged on a crank rotating support through a crank rotating shaft. By optimizing a crank starting point and a crank end point, ensure hopper's position of receiving and discharging material is arranged at or near a dead point of the tipping mechanism so that the working condition of an impact force borne by a speed reducer device is optimized when the tipping hopper is charged and discharged.Type: ApplicationFiled: December 21, 2017Publication date: October 18, 2018Applicant: CISDI ENGINEERING CO., LTDInventors: Qiming Huang, Zhan Gao, Weizhi Shi, Cunzhen Tan, Yongmen Wang
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Publication number: 20180195799Abstract: A scrap steel preheating type electric arc furnace and a method for improving a heating cold region of a side wall charging electric arc furnace are provided. The scrap steel preheating type electric arc furnace includes an electric arc furnace body and an inclined scrap steel preheating chamber. An included angle between the scrap steel preheating chamber and a horizontal plane is 30° to 65°. The scrap steel preheating chamber is connected with the electric arc furnace body. A dust removal pipe chamber is at an upper end. A material blocking tooth rake is on the scrap steel preheating chamber. A driving mechanism is below the material blocking tooth rake. Flue gas enters the scrap steel preheating chamber, penetrates through the material blocking tooth rake and the scrap steel and is sucked out by the dust removal pipe chamber.Type: ApplicationFiled: March 5, 2018Publication date: July 12, 2018Applicant: CISDI ENGINEERING CO., LTDInventors: Qiming Huang, Zhan Gao, Weizhi Shi, Cunzhen Tan