Patents by Inventor Jianmin Guo
Jianmin Guo 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: 12258331Abstract: The present invention discloses a method of treating tumor using a novel pyrimidine derivative. It is demonstrated through the tests on anti-tumor activity at the cellular level (tumor cells expressed with c-Met) that, through the introduction of a chiral structure in the molecule, the introduction of an isotope of hydrogen (deuterium) at the sites that are prone to metabolism in the molecule, and the introduction of atoms or groups such as sulfur, selenium and sulfoxide in the molecule, the compounds of the invention have excellent anti-tumor activities, and the stabilities of the anti-tumor compounds are significantly improved.Type: GrantFiled: July 19, 2023Date of Patent: March 25, 2025Assignees: Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangdong CS-Lewwin Drug Research Co., Ltd.Inventors: Xingshu Li, Xinzi Chen, Wei Yang, Jianmin Guo
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Patent number: 12202820Abstract: The present invention discloses a novel pyrimidine derivative and a preparation process thereof and a use thereof in anti-tumor drugs. It is demonstrated through the tests on anti-tumor activity at the cellular level (tumor cells expressed with c-Met) that, through the introduction of a chiral structure in the molecule, the introduction of an isotope of hydrogen (deuterium) at the sites that are prone to metabolism in the molecule, and the introduction of atoms or groups such as sulfur, selenium and sulfoxide in the molecule, the compounds of the invention have excellent anti-tumor activities, and the stabilities of the anti-tumor compounds are significantly improved.Type: GrantFiled: September 10, 2019Date of Patent: January 21, 2025Assignees: Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangdong CS-Lewwin Drug Research Co., Ltd.Inventors: Xingshu Li, Xinzi Chen, Wei Yang, Jianmin Guo
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Patent number: 12168654Abstract: The present invention discloses a pyrimidine derivative containing one deuterium atom, a preparation process thereof and a use thereof. It is demonstrated through in vivo and in vitro animal experiments that the antitumor activity of the pyrimidine derivative containing one deuterium atom provided in the disclosure is significantly superior to that of the positive drug Tepotinib, and the preparation process is simple and low in cost.Type: GrantFiled: January 25, 2021Date of Patent: December 17, 2024Assignees: Guangdong Lewwin Pharmaceutical Research Institute Co., Ltd., Guangdong CS-Lewwin Drug Research Co., Ltd.Inventors: Xingshu Li, Xinzi Chen, Wei Yang, Jianmin Guo
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Patent number: 12146676Abstract: Provided are a control method and apparatus for increasing the amount of a circulating refrigerant, and an air conditioner. The control method includes: when a refrigerating capacity need is equivalent to a heating capacity need in the operation of an air-conditioning system, determining whether the discharge temperature of a compressor is greater than a preset safety alert value; if the discharge temperature of the compressor is greater than the safety alert value, adjusting the frequency of a fan of an outdoor heat exchanger; and when the discharge temperature of the compressor is not greater than the safety alert value, controlling to stop the adjustment of the frequency of the fan, and maintaining the air-conditioning system to operate at the adjusted current frequency of the fan.Type: GrantFiled: November 25, 2020Date of Patent: November 19, 2024Assignee: Gree Electric Appliances, Inc. of ZhuhaiInventors: Jianmin Guo, Shiqiang Zhang, Huachao Jiao
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Publication number: 20230365532Abstract: The present invention discloses a method of treating tumor using a novel pyrimidine derivative. It is demonstrated through the tests on anti-tumor activity at the cellular level (tumor cells expressed with c-Met) that, through the introduction of a chiral structure in the molecule, the introduction of an isotope of hydrogen (deuterium) at the sites that are prone to metabolism in the molecule, and the introduction of atoms or groups such as sulfur, selenium and sulfoxide in the molecule, the compounds of the invention have excellent anti-tumor activities, and the stabilities of the anti-tumor compounds are significantly improved.Type: ApplicationFiled: July 19, 2023Publication date: November 16, 2023Inventors: Xingshu Li, Xinzi Chen, Wei Yang, Jianmin Guo
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Publication number: 20230023942Abstract: Provided are a control method and apparatus for increasing the amount of a circulating refrigerant, and an air conditioner. The control method includes: when a refrigerating capacity need is equivalent to a heating capacity need in the operation of an air-conditioning system, determining whether the discharge temperature of a compressor is greater than a preset safety alert value; if the discharge temperature of the compressor is greater than the safety alert value, adjusting the frequency of a fan of an outdoor heat exchanger; and when the discharge temperature of the compressor is not greater than the safety alert value, controlling to stop the adjustment of the frequency of the fan, and maintaining the air-conditioning system to operate at the adjusted current frequency of the fan.Type: ApplicationFiled: November 25, 2020Publication date: January 26, 2023Inventors: Jianmin Guo, Shiqiang Zhang, Huachao Jiao
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Publication number: 20210269424Abstract: The present invention discloses a novel pyrimidine derivative and a preparation process thereof and a use thereof in anti-tumor drugs. It is demonstrated through the tests on anti-tumor activity at the cellular level (tumor cells expressed with c-Met) that, through the introduction of a chiral structure in the molecule, the introduction of an isotope of hydrogen (deuterium) at the sites that are prone to metabolism in the molecule, and the introduction of atoms or groups such as sulfur, selenium and sulfoxide in the molecule, the compounds of the invention have excellent anti-tumor activities, and the stabilities of the anti-tumor compounds are significantly improved.Type: ApplicationFiled: September 10, 2019Publication date: September 2, 2021Inventors: Xingshu Li, Xinzi Chen, Wei Yang, Jianmin Guo
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Patent number: 11095426Abstract: Aspects of the disclosure provide a receiver for receiving data over a wired communication channel. The receiver includes an analog front end circuit, a pulse generation circuit and a voltage-controlled oscillator (VCO). The analog front end circuit receives an analog signal carrying data over the wired communication channel, and outputs a data signal with data bit transitions between voltage levels. The pulse generation circuit generates a pulse signal in response to the data bit transitions in the data signal. The voltage-controlled oscillator (VCO) generates an oscillation signal for providing sampling clocks for the data signal. The voltage-controlled oscillator aligns transitions in the oscillation signal to the pulse signal by forcing the oscillation signal to transit voltage levels in response to a pulse in the pulse signal.Type: GrantFiled: April 5, 2019Date of Patent: August 17, 2021Assignee: Marvell Asia Pte, Ltd.Inventors: Wenjie Li, Jianmin Guo, Xin Ma, Hui Wang, Jingjing Deng, Changguo Shen
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Patent number: 11012226Abstract: A short-reach data link receiver includes an edge detector configured to generate a pulse on an edge of a data input, a first clock-data recovery path coupled to an output of the edge detector for recovering a clock and data from the output of the edge detector, a second clock-data recovery path coupled to the output of the edge detector for recovering the clock and data from the output of the edge detector, and a controller configured to alternate between the first and second clock-data recovery paths to recover the clock and data using one of the paths while calibrating the other path. The controller may swap the paths whenever calibration of one path is completed. That may include beginning calibration of the next path immediately after swapping of the paths. Alternatively, power consumption may be reduced by delaying calibration of the next path after swapping of the paths.Type: GrantFiled: February 5, 2020Date of Patent: May 18, 2021Assignee: Marvell Asia Pte, Ltd.Inventors: Jianmin Guo, Jingjing Deng, Wenjie Li, Pilong Gao, Hui Wang, Xin Ma
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Publication number: 20210139464Abstract: The present invention discloses a pyrimidine derivative containing one deuterium atom, a preparation process thereof and a use thereof. It is demonstrated through in vivo and in vitro animal experiments that the antitumor activity of the pyrimidine derivative containing one deuterium atom provided in the disclosure is significantly superior to that of the positive drug Tepotinib, and the preparation process is simple and low in cost.Type: ApplicationFiled: January 25, 2021Publication date: May 13, 2021Inventors: Xingshu Li, Xinzi Chen, Wei Yang, Jianmin Guo
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Patent number: 10999049Abstract: A clock-data recovery circuit includes a variable data path delay, an injection-locked oscillator having a free-running frequency, and circuitry for adjusting at least one of the variable data path delay and the free-running frequency, including a counter configured to count repetitions of a bit value in an input data signal, and further being configured to, on occurrence of a first data pattern in the input data signal, indicative of saturation of inter-symbol interference, measure the input data signal at a first clock edge to determine a first data phase measurement value, measure the input data signal at clock centers immediately preceding and immediately following the first clock edge to determine second and third data phase measurement values, and based on first predetermined relationships among the first, second and third data phase measurement values, adjust the variable data path.Type: GrantFiled: April 5, 2019Date of Patent: May 4, 2021Assignee: Marvell Asia Pte, Ltd.Inventors: Jianmin Guo, Wenjie Li, Jingjing Deng, Changguo Shen, Hui Wang, Xin Ma
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Publication number: 20200252195Abstract: A short-reach data link receiver includes an edge detector configured to generate a pulse on an edge of a data input, a first clock-data recovery path coupled to an output of the edge detector for recovering a clock and data from the output of the edge detector, a second clock-data recovery path coupled to the output of the edge detector for recovering the clock and data from the output of the edge detector, and a controller configured to alternate between the first and second clock-data recovery paths to recover the clock and data using one of the paths while calibrating the other path. The controller may swap the paths whenever calibration of one path is completed. That may include beginning calibration of the next path immediately after swapping of the paths. Alternatively, power consumption may be reduced by delaying calibration of the next path after swapping of the paths.Type: ApplicationFiled: February 5, 2020Publication date: August 6, 2020Inventors: Jianmin Guo, Jingjing Deng, Wenjie Li, Pilong Gao, Hui Wang, Xin Ma
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Patent number: 10601575Abstract: A short-reach data link receiver includes an edge detector configured to generate a pulse on an edge of a data input, a first clock-data recovery path coupled to an output of the edge detector for recovering a clock and data from the output of the edge detector, a second clock-data recovery path coupled to the output of the edge detector for recovering the clock and data from the output of the edge detector, and a controller configured to alternate between the first and second clock-data recovery paths to recover the clock and data using one of the paths while calibrating the other path. The controller may swap the paths whenever calibration of one path is completed. That may include beginning calibration of the next path immediately after swapping of the paths. Alternatively, power consumption may be reduced by delaying calibration of the next path after swapping of the paths.Type: GrantFiled: January 31, 2019Date of Patent: March 24, 2020Assignee: Marvell International Ltd.Inventors: Jianmin Guo, Jingjing Deng, Wenjie Li, Pilong Gao, Hui Wang, Xin Ma
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Patent number: 9158076Abstract: An on-site hot-melt quick connector for optical fibers comprises a plug housing, a ferrule, an optical fiber telescopic protective tube, a tail end cover, a pressure welding protective tail handle and a compression ring. A front baffle ring is mounted in the plug housing and a rear baffle ring is mounted in the tail end cover. The ferrule and the optical fiber telescopic protective tube are positioned between the front baffle ring and the rear baffle ring and can move in the axial direction. As the quick connector for optical fibers of the invention has a definite space for movement in the axial direction, the optical fibers themselves can move along with the plugging action during butting, avoiding the bending of the optical fibers caused as they are unable to move, thus guaranteeing the transmission quality of the optical signals. The service life of the quick connector is also guaranteed.Type: GrantFiled: August 29, 2012Date of Patent: October 13, 2015Assignee: SHENZHEN SDGI OPTICAL NETWORK TECHNOLOGIES CO., LTD.Inventors: Jianmin Guo, Jie Wei
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Publication number: 20130177278Abstract: An on-site hot-melt quick connector for optical fibers comprises a plug housing, a ferrule, an optical fiber telescopic protective tube, a tail end cover, a pressure welding protective tail handle and a compression ring. A front baffle ring is mounted in the plug housing and a rear baffle ring is mounted in the tail end cover. The ferrule and the optical fiber telescopic protective tube are positioned between the front baffle ring and the rear baffle ring and can move in the axial direction. As the quick connector for optical fibers of the invention has a definite space for movement in the axial direction, the optical fibers themselves can move along with the plugging action during butting, avoiding the bending of the optical fibers caused as they are unable to move, thus guaranteeing the transmission quality of the optical signals. The service life of the quick connector is also guaranteed.Type: ApplicationFiled: August 29, 2012Publication date: July 11, 2013Inventors: Jianmin Guo, Jie Wei
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Patent number: 7990225Abstract: A phase-locked loop (PLL) with a decreased frequency tuning gain KVCO and a loop filter using capacitor multiplication technique to get high chip area efficiency. To get decreased frequency tuning gain, KVCO, a voltage to current converter in a voltage-controlled oscillator (VCO) in the PLL may comprise a first voltage to current converter and a second voltage to current converter. The trans-conductance of the first voltage to current converter is 1/? of that of the second voltage to current converter, wherein ?>1. The first voltage to current converter is controlled by an output voltage of a loop filter in the PLL, and the second voltage to current converter is controlled by a relative DC voltage, which may be the junction node between R1 and C1 in a loop filer of the PLL. Capacitor multiplication technique may use an auxiliary charge pump to charge or discharge the junction node between R1 and C1 inversely to the main charge pump.Type: GrantFiled: July 7, 2009Date of Patent: August 2, 2011Assignee: Marvell International Ltd.Inventors: Jianmin Guo, Yihui Li, Hong Xue, Yonghua Song, Tao Shui, Hao Zhou