Patents by Inventor Yuanjun Liang
Yuanjun Liang 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: 20230421162Abstract: The present invention provides a frequency selective circuit. The frequency selection circuit comprises a voltage-controlled oscillator, a frequency divider, a frequency selective unit and a register group, the voltage-controlled oscillator is used to output a frequency corresponding to the frequency adjustment window; the frequency divider is used to divide the clock frequency output by the voltage-controlled oscillator, and to feed back the resulting low frequency to the frequency selection unit; the frequency selective unit is used to compare a reference frequency with the resulting low frequency output by the frequency divider, and to provide the frequency adjustment window which is configured based on the frequency search window to the voltage-controlled oscillator. The register group is used to output the frequency search window which is provided to the frequency selective unit.Type: ApplicationFiled: March 24, 2021Publication date: December 28, 2023Applicant: SHENZHEN PANGO MICROSYSTEMS CO., LTDInventors: Chuntan ZHUO, Yuanjun LIANG
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Publication number: 20230421142Abstract: A high-speed sampling circuit is disclosed which comprises a sampling module, a latch module, a first control module, a second control module, and a third control module, the sampling module is used to amplify a differential input signal; the latch module is used to latch the differential output signal of the sampling module; the first control module is used to control the sampling module under a first clock signal; the second control module is used to control the latch module under a second clock signal; the third control module is used to control the output of the differential output signal under the second clock signal.Type: ApplicationFiled: March 24, 2021Publication date: December 28, 2023Applicant: SHENZHEN PANGO MICROSYSTEMS CO., LTDInventors: Guangyao YOU, Yuanjun LIANG
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Patent number: 11695398Abstract: A fixed time-delay circuit of a high-speed interface is disclosed. The fixed time-delay circuit comprises: a counter circuit for generating a shift selection signal of any bit; a data selector circuit for receiving first parallel data signals and rearranging the first parallel data signals according to the shift selection signal and a first low-speed clock to obtain second parallel data signals; a clock selector circuit for selecting, according to the shift selection signal, one clock from multiple input clocks having different phases, for outputting, to form a second low-speed clock; and a synchronization circuit for synchronizing the second parallel data signals according to the second low-speed clock. According to the circuit, initialization alignment among multichannel data of the high-speed interface can be achieved.Type: GrantFiled: July 20, 2020Date of Patent: July 4, 2023Inventors: Kai Li, Yuanjun Liang
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Publication number: 20230122734Abstract: Disclosed are a clock and data recovery circuit, method and apparatus. The circuit comprises a receiving module for receiving an analog signal; a first equalization module connected to the receiving module, the first equalization module comprising a first totalizer and a second totalizer; a first sampling module connected to an output end of the first totalizer, the first sampling module comprising a first edge sampler and a second edge sampler that are connected to the output end of the first totalizer, respectively; a second sampling module connected to an output end of the second totalizer; a data processing module connected to both the first sampling module and the second sampling module; a clock recovery module connected to the data processing module; and an output module connected to the clock recovery module. In the present application, by means of the manner, a phase can be adjusted using a bias voltage, thereby accurately recovering clock information.Type: ApplicationFiled: March 24, 2021Publication date: April 20, 2023Applicant: SHENZHEN PANGO MICROSYSTEMS CO.,LTD.Inventors: Xinjian CHEN, Yuanjun LIANG
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Publication number: 20220385279Abstract: A fixed time-delay circuit of a high-speed interface is disclosed. The fixed time-delay circuit comprises: a counter circuit for generating a shift selection signal of any bit; a data selector circuit for receiving first parallel data signals and rearranging the first parallel data signals according to the shift selection signal and a first low-speed clock to obtain second parallel data signals; a clock selector circuit for selecting, according to the shift selection signal, one clock from multiple input clocks having different phases, for outputting, to form a second low-speed clock; and a synchronization circuit for synchronizing the second parallel data signals according to the second low-speed clock. According to the circuit, initialization alignment among multichannel data of the high-speed interface can be achieved.Type: ApplicationFiled: July 20, 2020Publication date: December 1, 2022Applicant: SHENZHEN PANGO MICROSYSTEMS CO.,LTD.Inventors: Kai LI, Yuanjun LIANG
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Patent number: 10491308Abstract: An optical signal processing method and a coherent receiver, wherein an in-phase signal XI in a first polarization direction and an in-phase signal YI in a second polarization direction are added up to obtain a signal I; a quadrature signal XQ in the first polarization direction and a quadrature signal YQ in the second polarization direction are added up to obtain a signal Q; and quantization, combination, and digital signal processing are performed on the I and the Q. After summation, two signals need to be quantized. Therefore, a quantity of ADCs is reduced by half. In addition, because power consumption of a summation component is less than that of an ADS, power consumption of optical signal processing can be reduced. In addition, because there is a preset value, the summation may be performed after phase-inversion is performed on one analog signal, thereby avoiding a signal loss caused by the summation.Type: GrantFiled: February 27, 2018Date of Patent: November 26, 2019Assignee: Huawei Technologies Co., Ltd.Inventors: Enbo Zhou, Yuanjun Liang, Tianjian Zuo, Liang Zhang
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Publication number: 20180191447Abstract: An optical signal processing method and a coherent receiver, wherein an in-phase signal XI in a first polarization direction and an in-phase signal YI in a second polarization direction are added up to obtain a signal I; a quadrature signal XQ in the first polarization direction and a quadrature signal YQ in the second polarization direction are added up to obtain a signal Q; and quantization, combination, and digital signal processing are performed on the I and the Q. After summation, two signals need to be quantized. Therefore, a quantity of ADCs is reduced by half. In addition, because power consumption of a summation component is less than that of an ADS, power consumption of optical signal processing can be reduced. In addition, because there is a preset value, the summation may be performed after phase-inversion is performed on one analog signal, thereby avoiding a signal loss caused by the summation.Type: ApplicationFiled: February 27, 2018Publication date: July 5, 2018Inventors: Enbo ZHOU, Yuanjun LIANG, Tianjian ZUO, Liang ZHANG
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Patent number: 9623111Abstract: A pegylated artesunate derivative, a pharmaceutical composition and uses thereof, the pegylated artesunate derivative is represented by the general formula (I): The pegylated artesunate derivative has activity comparable to that of artesunate, increased water solubility and stability, and an extended half-life in vivo.Type: GrantFiled: April 12, 2013Date of Patent: April 18, 2017Assignees: KPC Pharmaceuticals, Inc., Institute of Pharmacology and Toxicology Academy of Military Medical Science P.L.A. CHINAInventors: Sicheng Li, Qingbin Meng, Junwen Mao, Jinfeng Li, An Xu, Jia Liu, Yuanjun Liang, Qiyan Jia, Jiufeng Yan, Xiaoyang Shen, Hui Liu, Na Xing
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Patent number: 9464128Abstract: The present invention relates to site-specific PEGylated linear salmon calcitonin analogs, or pharmaceutically acceptable salts thereof, process for their preparation, pharmaceutical compositions comprising them, and their use for the preparation of a medicament for the treatment or prevention of diseases associated with bone metabolism, e.g., osteoporosis.Type: GrantFiled: June 4, 2008Date of Patent: October 11, 2016Assignee: INSTITUTE OF PHARMACOLOGY AND TOXICOLOGY ACADEMY OF MILITARY MEDICAL SCIENCES P.L.A.Inventors: Keliang Liu, Jiankun Qie, Zhixia Yang, Yuanjun Liang, Ying Wang, Zehui Gong, Huajin Dong
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Publication number: 20160250339Abstract: A pegylated artesunate derivative, a pharmaceutical composition and uses thereof, the pegylated artesunate derivative is represented by the general formula (I): The pegylated artesunate derivative has activity comparable to that of artesunate, increased water solubility and stability, and an extended half-life in vivo.Type: ApplicationFiled: April 12, 2013Publication date: September 1, 2016Applicants: Beijing Kaizheng Biotech Development Co. LTD, Institute of Pharmacology and Toxicology Academy of Military Medical Sciences PLA China, Institute of Pharmacology and Toxicology Academy of Military Medical Sciences PLA ChinaInventors: Sicheng Li, Qingbin Meng, Junwen Mao, Jinfeng Li, An Xu, Jia Liu, Yuanjun Liang, Qiyan Jia, Jiufeng Yan, Xiaoyang Shen, Hui Liu, Na Xing
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Patent number: 9260534Abstract: Disclosed are PEG-modified Exendin-4 analogs and uses thereof. In particular, disclosed are PEG-modified Exendin-4 analogs as shown in formula (I), i.e., PEG-M-X-(Ex-4), or pharmaceutically acceptable salts thereof, as well as Exendin-4 analogs as shown in formula (II), i.e., [Aap]Exendin-4, wherein the symbols are as defined in the specification. Further disclosed are methods for preparing PEG-modified Exendin-4 analogs, uses of PEG-modified Exendin-4 analogs, compositions comprising the same, as well as use of the Exendin-4 analogs in the preparation of the PEG-modified Exendin-4 analogs. In the PEG-modified Exendin-4 analogs, modification by polyethylene glycol occurs in a site-directed manner in the peptide chains of the Exendin-4 analogs. The PEG-modified Exendin-4 analogs can be used to prevent and/or treat diseases and/or symptoms related to decreased activity of GLP-1 receptors, such as type II diabetes.Type: GrantFiled: August 11, 2011Date of Patent: February 16, 2016Assignees: Institute of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A. China, Chengdu Yiping Medical Science & Technology Co., Ltd.Inventors: Keliang Liu, Yuanjun Liang, Xiaoyu Xu, Sicheng Li
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Publication number: 20130310310Abstract: Disclosed are PEG-modified Exendin-4 analogs and uses thereof. In particular, disclosed are PEG-modified Exendin-4 analogs as shown in formula (I), i.e., PEG-M-X-(Ex-4), or pharmaceutically acceptable salts thereof, as well as Exendin-4 analogs as shown in formula (II), i.e., [Aap]Exendin-4, wherein the symbols are as defined in the specification. Further disclosed are methods for preparing PEG-modified Exendin-4 analogs, uses of PEG-modified Exendin-4 analogs, compositions comprising the same, as well as use of the Exendin-4 analogs in the preparation of the PEG-modified Exendin-4 analogs. In the PEG-modified Exendin-4 analogs, modification by polyethylene glycol occurs in a site-directed manner in the peptide chains of the Exendin-4 analogs. The PEG-modified Exendin-4 analogs can be used to prevent and/or treat diseases and/or symptoms related to decreased activity of GLP-1 receptors, such as type II diabetes.Type: ApplicationFiled: August 11, 2011Publication date: November 21, 2013Applicants: Chengdu Yiping Medical Science & Technology Co., Ltd., Institute of Pharmacology and Toxicology Academy of Military Medical Sciences P.L.A. ChinaInventors: Keliang Liu, Yuanjun Liang, Xiaoyu Xu, Sicheng Li
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Publication number: 20110091420Abstract: Disclosed are an injectable sustained-release pharmaceutical formulation and a process for preparing the same. In some embodiments, the formulation comprises an active ingredient in a therapeutically effective amount, an amphipathic molecule, an organic acid and/or a salt thereof which is hardly soluble in water, and an oily solvent. The injectable sustained-release pharmaceutical formulation provides a good sustained-release effect for various active ingredients, in particular peptides, proteins, nucleic acids and saccharides.Type: ApplicationFiled: March 20, 2009Publication date: April 21, 2011Applicants: Institute of Pharmacology and Toxicology, Academy of Military Medical Sciences, People Liberation Ar, Chengdu Yiping Pharmaceutical Science Development Co., Ltd.Inventors: Keliang Liu, Dongqin Quan, Yuanjun Liang, Qingbin Meng, Chenhong Wang, Junlin He, Qiyan Jia, Sicheng Li
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Publication number: 20100227815Abstract: The present invention relates to site-specific PEGylated linear salmon calcitonin analogues, or pharmaceutically acceptable salts thereof, process for their preparation, pharmaceutical compositions comprising them, and their use for the preparation of a medicament for the treatment or prevention of diseases associated with bone metabolism, e.g., osteoporosis.Type: ApplicationFiled: June 4, 2008Publication date: September 9, 2010Applicant: Institute of Pharmacology and Toxicology Academy Of Military Medical ScienceInventors: Keliang Liu, Jiankun Qie, Zhixia Yang, Yuanjun Liang, Ying Wang, Zehui Gong, Huajin Dong
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Patent number: 6953780Abstract: The instant invention relates to some tripeptide derivatives having activity against endothelin a process for preparing them, pharmaceutical composition containing the same and their use in prevention or treatment of some diseases associated with endothelin.Type: GrantFiled: June 21, 2001Date of Patent: October 11, 2005Assignee: Institute of Pharmacology and Toxicology Academy of Military Medical Sciences, P.L.A.Inventors: Keliang Liu, Wensheng Yu, Yuanjun Liang, Hai Wang, Yufen Zhao, Zhenkai Ding
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Publication number: 20040038906Abstract: The instant invention relates to some tripeptide derivatives having activity against endothelin a process for preparing them, pharmaceutical composition containing the same and their use in prevention or treatment of some diseases associated with endothelin.Type: ApplicationFiled: May 29, 2003Publication date: February 26, 2004Inventors: Keliang Liu, Wensheng Yu, Yuanjun Liang, Hai Wang, Yufen Zhao, Zhenkai Ding